d5e8ade498
Using the vertices, instead of ray casting for the triangulation. This request a dynamic index buffer associated with vertex buffer, so we update the VertexBuffer to support it. The ambient shadow could be 3x-6x times faster for circle and rect now. b/16712006 b/14257173 Change-Id: I2f22a8fe19bc59acee5c18e4a3a395acd5042a66
3510 lines
125 KiB
C++
Executable File
3510 lines
125 KiB
C++
Executable File
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "OpenGLRenderer"
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#include <stdlib.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <SkCanvas.h>
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#include <SkColor.h>
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#include <SkShader.h>
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#include <SkTypeface.h>
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#include <utils/Log.h>
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#include <utils/StopWatch.h>
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#include <private/hwui/DrawGlInfo.h>
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#include <ui/Rect.h>
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#include "OpenGLRenderer.h"
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#include "DeferredDisplayList.h"
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#include "DisplayListRenderer.h"
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#include "Fence.h"
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#include "RenderState.h"
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#include "PathTessellator.h"
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#include "Properties.h"
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#include "ShadowTessellator.h"
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#include "SkiaShader.h"
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#include "utils/GLUtils.h"
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#include "Vector.h"
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#include "VertexBuffer.h"
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#if DEBUG_DETAILED_EVENTS
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#define EVENT_LOGD(...) eventMarkDEBUG(__VA_ARGS__)
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#else
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#define EVENT_LOGD(...)
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#endif
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Defines
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///////////////////////////////////////////////////////////////////////////////
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static GLenum getFilter(const SkPaint* paint) {
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if (!paint || paint->getFilterLevel() != SkPaint::kNone_FilterLevel) {
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return GL_LINEAR;
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}
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return GL_NEAREST;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Globals
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///////////////////////////////////////////////////////////////////////////////
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/**
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* Structure mapping Skia xfermodes to OpenGL blending factors.
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*/
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struct Blender {
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SkXfermode::Mode mode;
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GLenum src;
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GLenum dst;
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}; // struct Blender
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// In this array, the index of each Blender equals the value of the first
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// entry. For instance, gBlends[1] == gBlends[SkXfermode::kSrc_Mode]
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static const Blender gBlends[] = {
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{ SkXfermode::kClear_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kSrc_Mode, GL_ONE, GL_ZERO },
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{ SkXfermode::kDst_Mode, GL_ZERO, GL_ONE },
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{ SkXfermode::kSrcOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kDstOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE },
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{ SkXfermode::kSrcIn_Mode, GL_DST_ALPHA, GL_ZERO },
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{ SkXfermode::kDstIn_Mode, GL_ZERO, GL_SRC_ALPHA },
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{ SkXfermode::kSrcOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO },
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{ SkXfermode::kDstOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kSrcATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kDstATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA },
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{ SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kPlus_Mode, GL_ONE, GL_ONE },
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{ SkXfermode::kModulate_Mode, GL_ZERO, GL_SRC_COLOR },
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{ SkXfermode::kScreen_Mode, GL_ONE, GL_ONE_MINUS_SRC_COLOR }
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};
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// This array contains the swapped version of each SkXfermode. For instance
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// this array's SrcOver blending mode is actually DstOver. You can refer to
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// createLayer() for more information on the purpose of this array.
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static const Blender gBlendsSwap[] = {
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{ SkXfermode::kClear_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO },
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{ SkXfermode::kSrc_Mode, GL_ZERO, GL_ONE },
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{ SkXfermode::kDst_Mode, GL_ONE, GL_ZERO },
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{ SkXfermode::kSrcOver_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE },
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{ SkXfermode::kDstOver_Mode, GL_ONE, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kSrcIn_Mode, GL_ZERO, GL_SRC_ALPHA },
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{ SkXfermode::kDstIn_Mode, GL_DST_ALPHA, GL_ZERO },
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{ SkXfermode::kSrcOut_Mode, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kDstOut_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ZERO },
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{ SkXfermode::kSrcATop_Mode, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA },
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{ SkXfermode::kDstATop_Mode, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kXor_Mode, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA },
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{ SkXfermode::kPlus_Mode, GL_ONE, GL_ONE },
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{ SkXfermode::kModulate_Mode, GL_DST_COLOR, GL_ZERO },
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{ SkXfermode::kScreen_Mode, GL_ONE_MINUS_DST_COLOR, GL_ONE }
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};
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///////////////////////////////////////////////////////////////////////////////
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// Functions
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///////////////////////////////////////////////////////////////////////////////
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template<typename T>
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static inline T min(T a, T b) {
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return a < b ? a : b;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Constructors/destructor
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///////////////////////////////////////////////////////////////////////////////
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OpenGLRenderer::OpenGLRenderer(RenderState& renderState)
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: mFrameStarted(false)
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, mCaches(Caches::getInstance())
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, mExtensions(Extensions::getInstance())
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, mRenderState(renderState)
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, mScissorOptimizationDisabled(false)
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, mCountOverdraw(false)
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, mLightCenter((Vector3){FLT_MIN, FLT_MIN, FLT_MIN})
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, mLightRadius(FLT_MIN)
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, mAmbientShadowAlpha(0)
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, mSpotShadowAlpha(0) {
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// *set* draw modifiers to be 0
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memset(&mDrawModifiers, 0, sizeof(mDrawModifiers));
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mDrawModifiers.mOverrideLayerAlpha = 1.0f;
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memcpy(mMeshVertices, gMeshVertices, sizeof(gMeshVertices));
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}
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OpenGLRenderer::~OpenGLRenderer() {
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// The context has already been destroyed at this point, do not call
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// GL APIs. All GL state should be kept in Caches.h
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}
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void OpenGLRenderer::initProperties() {
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char property[PROPERTY_VALUE_MAX];
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if (property_get(PROPERTY_DISABLE_SCISSOR_OPTIMIZATION, property, "false")) {
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mScissorOptimizationDisabled = !strcasecmp(property, "true");
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INIT_LOGD(" Scissor optimization %s",
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mScissorOptimizationDisabled ? "disabled" : "enabled");
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} else {
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INIT_LOGD(" Scissor optimization enabled");
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}
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}
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void OpenGLRenderer::initLight(const Vector3& lightCenter, float lightRadius,
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uint8_t ambientShadowAlpha, uint8_t spotShadowAlpha) {
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mLightCenter = lightCenter;
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mLightRadius = lightRadius;
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mAmbientShadowAlpha = ambientShadowAlpha;
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mSpotShadowAlpha = spotShadowAlpha;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Setup
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///////////////////////////////////////////////////////////////////////////////
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void OpenGLRenderer::onViewportInitialized() {
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glDisable(GL_DITHER);
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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glEnableVertexAttribArray(Program::kBindingPosition);
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}
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void OpenGLRenderer::setupFrameState(float left, float top,
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float right, float bottom, bool opaque) {
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mCaches.clearGarbage();
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initializeSaveStack(left, top, right, bottom, mLightCenter);
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mOpaque = opaque;
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mTilingClip.set(left, top, right, bottom);
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}
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status_t OpenGLRenderer::startFrame() {
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if (mFrameStarted) return DrawGlInfo::kStatusDone;
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mFrameStarted = true;
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mDirtyClip = true;
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discardFramebuffer(mTilingClip.left, mTilingClip.top, mTilingClip.right, mTilingClip.bottom);
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mRenderState.setViewport(getWidth(), getHeight());
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// Functors break the tiling extension in pretty spectacular ways
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// This ensures we don't use tiling when a functor is going to be
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// invoked during the frame
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mSuppressTiling = mCaches.hasRegisteredFunctors();
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startTilingCurrentClip(true);
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debugOverdraw(true, true);
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return clear(mTilingClip.left, mTilingClip.top,
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mTilingClip.right, mTilingClip.bottom, mOpaque);
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}
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status_t OpenGLRenderer::prepareDirty(float left, float top,
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float right, float bottom, bool opaque) {
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setupFrameState(left, top, right, bottom, opaque);
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// Layer renderers will start the frame immediately
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// The framebuffer renderer will first defer the display list
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// for each layer and wait until the first drawing command
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// to start the frame
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if (currentSnapshot()->fbo == 0) {
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syncState();
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updateLayers();
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} else {
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return startFrame();
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}
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return DrawGlInfo::kStatusDone;
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}
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void OpenGLRenderer::discardFramebuffer(float left, float top, float right, float bottom) {
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// If we know that we are going to redraw the entire framebuffer,
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// perform a discard to let the driver know we don't need to preserve
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// the back buffer for this frame.
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if (mExtensions.hasDiscardFramebuffer() &&
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left <= 0.0f && top <= 0.0f && right >= getWidth() && bottom >= getHeight()) {
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const bool isFbo = getTargetFbo() == 0;
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const GLenum attachments[] = {
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isFbo ? (const GLenum) GL_COLOR_EXT : (const GLenum) GL_COLOR_ATTACHMENT0,
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isFbo ? (const GLenum) GL_STENCIL_EXT : (const GLenum) GL_STENCIL_ATTACHMENT };
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glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, attachments);
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}
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}
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status_t OpenGLRenderer::clear(float left, float top, float right, float bottom, bool opaque) {
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if (!opaque || mCountOverdraw) {
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mCaches.enableScissor();
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mCaches.setScissor(left, getViewportHeight() - bottom, right - left, bottom - top);
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glClear(GL_COLOR_BUFFER_BIT);
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return DrawGlInfo::kStatusDrew;
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}
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mCaches.resetScissor();
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return DrawGlInfo::kStatusDone;
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}
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void OpenGLRenderer::syncState() {
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if (mCaches.blend) {
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glEnable(GL_BLEND);
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} else {
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glDisable(GL_BLEND);
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}
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}
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void OpenGLRenderer::startTilingCurrentClip(bool opaque, bool expand) {
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if (!mSuppressTiling) {
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const Snapshot* snapshot = currentSnapshot();
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const Rect* clip = &mTilingClip;
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if (snapshot->flags & Snapshot::kFlagFboTarget) {
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clip = &(snapshot->layer->clipRect);
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}
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startTiling(*clip, getViewportHeight(), opaque, expand);
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}
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}
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void OpenGLRenderer::startTiling(const Rect& clip, int windowHeight, bool opaque, bool expand) {
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if (!mSuppressTiling) {
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if(expand) {
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// Expand the startTiling region by 1
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int leftNotZero = (clip.left > 0) ? 1 : 0;
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int topNotZero = (windowHeight - clip.bottom > 0) ? 1 : 0;
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mCaches.startTiling(
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clip.left - leftNotZero,
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windowHeight - clip.bottom - topNotZero,
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clip.right - clip.left + leftNotZero + 1,
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clip.bottom - clip.top + topNotZero + 1,
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opaque);
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} else {
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mCaches.startTiling(clip.left, windowHeight - clip.bottom,
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clip.right - clip.left, clip.bottom - clip.top, opaque);
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}
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}
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}
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void OpenGLRenderer::endTiling() {
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if (!mSuppressTiling) mCaches.endTiling();
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}
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void OpenGLRenderer::finish() {
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renderOverdraw();
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endTiling();
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// When finish() is invoked on FBO 0 we've reached the end
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// of the current frame
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if (getTargetFbo() == 0) {
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mCaches.pathCache.trim();
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mCaches.tessellationCache.trim();
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}
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if (!suppressErrorChecks()) {
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#if DEBUG_OPENGL
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GLUtils::dumpGLErrors();
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#endif
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#if DEBUG_MEMORY_USAGE
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mCaches.dumpMemoryUsage();
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#else
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if (mCaches.getDebugLevel() & kDebugMemory) {
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mCaches.dumpMemoryUsage();
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}
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#endif
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}
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if (mCountOverdraw) {
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countOverdraw();
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}
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mFrameStarted = false;
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}
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void OpenGLRenderer::resumeAfterLayer() {
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mRenderState.setViewport(getViewportWidth(), getViewportHeight());
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mRenderState.bindFramebuffer(currentSnapshot()->fbo);
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debugOverdraw(true, false);
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mCaches.resetScissor();
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dirtyClip();
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}
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status_t OpenGLRenderer::callDrawGLFunction(Functor* functor, Rect& dirty) {
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if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone;
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Rect clip(*currentClipRect());
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clip.snapToPixelBoundaries();
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// Since we don't know what the functor will draw, let's dirty
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// the entire clip region
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if (hasLayer()) {
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dirtyLayerUnchecked(clip, getRegion());
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}
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DrawGlInfo info;
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info.clipLeft = clip.left;
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info.clipTop = clip.top;
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info.clipRight = clip.right;
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info.clipBottom = clip.bottom;
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info.isLayer = hasLayer();
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info.width = getViewportWidth();
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info.height = getViewportHeight();
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currentTransform()->copyTo(&info.transform[0]);
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bool prevDirtyClip = mDirtyClip;
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// setup GL state for functor
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if (mDirtyClip) {
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setStencilFromClip(); // can issue draws, so must precede enableScissor()/interrupt()
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}
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if (mCaches.enableScissor() || prevDirtyClip) {
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setScissorFromClip();
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}
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mRenderState.invokeFunctor(functor, DrawGlInfo::kModeDraw, &info);
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// Scissor may have been modified, reset dirty clip
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dirtyClip();
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return DrawGlInfo::kStatusDrew;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Debug
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///////////////////////////////////////////////////////////////////////////////
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void OpenGLRenderer::eventMarkDEBUG(const char* fmt, ...) const {
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#if DEBUG_DETAILED_EVENTS
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const int BUFFER_SIZE = 256;
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va_list ap;
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char buf[BUFFER_SIZE];
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va_start(ap, fmt);
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vsnprintf(buf, BUFFER_SIZE, fmt, ap);
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va_end(ap);
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eventMark(buf);
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#endif
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}
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void OpenGLRenderer::eventMark(const char* name) const {
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mCaches.eventMark(0, name);
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}
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void OpenGLRenderer::startMark(const char* name) const {
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mCaches.startMark(0, name);
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}
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void OpenGLRenderer::endMark() const {
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mCaches.endMark();
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}
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void OpenGLRenderer::debugOverdraw(bool enable, bool clear) {
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mRenderState.debugOverdraw(enable, clear);
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}
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void OpenGLRenderer::renderOverdraw() {
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if (mCaches.debugOverdraw && getTargetFbo() == 0) {
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const Rect* clip = &mTilingClip;
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mCaches.enableScissor();
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mCaches.setScissor(clip->left, firstSnapshot()->getViewportHeight() - clip->bottom,
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clip->right - clip->left, clip->bottom - clip->top);
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// 1x overdraw
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mCaches.stencil.enableDebugTest(2);
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drawColor(mCaches.getOverdrawColor(1), SkXfermode::kSrcOver_Mode);
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// 2x overdraw
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mCaches.stencil.enableDebugTest(3);
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drawColor(mCaches.getOverdrawColor(2), SkXfermode::kSrcOver_Mode);
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// 3x overdraw
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mCaches.stencil.enableDebugTest(4);
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drawColor(mCaches.getOverdrawColor(3), SkXfermode::kSrcOver_Mode);
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// 4x overdraw and higher
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mCaches.stencil.enableDebugTest(4, true);
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drawColor(mCaches.getOverdrawColor(4), SkXfermode::kSrcOver_Mode);
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mCaches.stencil.disable();
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}
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}
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void OpenGLRenderer::countOverdraw() {
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size_t count = getWidth() * getHeight();
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uint32_t* buffer = new uint32_t[count];
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glReadPixels(0, 0, getWidth(), getHeight(), GL_RGBA, GL_UNSIGNED_BYTE, &buffer[0]);
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size_t total = 0;
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for (size_t i = 0; i < count; i++) {
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total += buffer[i] & 0xff;
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}
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mOverdraw = total / float(count);
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delete[] buffer;
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}
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|
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///////////////////////////////////////////////////////////////////////////////
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// Layers
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///////////////////////////////////////////////////////////////////////////////
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|
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bool OpenGLRenderer::updateLayer(Layer* layer, bool inFrame) {
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if (layer->deferredUpdateScheduled && layer->renderer
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&& layer->renderNode.get() && layer->renderNode->isRenderable()) {
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ATRACE_CALL();
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Rect& dirty = layer->dirtyRect;
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if (inFrame) {
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endTiling();
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debugOverdraw(false, false);
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}
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if (CC_UNLIKELY(inFrame || mCaches.drawDeferDisabled)) {
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layer->render(*this);
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} else {
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layer->defer(*this);
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}
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if (inFrame) {
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resumeAfterLayer();
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startTilingCurrentClip();
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}
|
|
|
|
layer->debugDrawUpdate = mCaches.debugLayersUpdates;
|
|
layer->hasDrawnSinceUpdate = false;
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void OpenGLRenderer::updateLayers() {
|
|
// If draw deferring is enabled this method will simply defer
|
|
// the display list of each individual layer. The layers remain
|
|
// in the layer updates list which will be cleared by flushLayers().
|
|
int count = mLayerUpdates.size();
|
|
if (count > 0) {
|
|
if (CC_UNLIKELY(mCaches.drawDeferDisabled)) {
|
|
startMark("Layer Updates");
|
|
} else {
|
|
startMark("Defer Layer Updates");
|
|
}
|
|
|
|
// Note: it is very important to update the layers in order
|
|
for (int i = 0; i < count; i++) {
|
|
Layer* layer = mLayerUpdates.itemAt(i);
|
|
updateLayer(layer, false);
|
|
if (CC_UNLIKELY(mCaches.drawDeferDisabled)) {
|
|
mCaches.resourceCache.decrementRefcount(layer);
|
|
}
|
|
}
|
|
|
|
if (CC_UNLIKELY(mCaches.drawDeferDisabled)) {
|
|
mLayerUpdates.clear();
|
|
mRenderState.bindFramebuffer(getTargetFbo());
|
|
}
|
|
endMark();
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::flushLayers() {
|
|
int count = mLayerUpdates.size();
|
|
if (count > 0) {
|
|
startMark("Apply Layer Updates");
|
|
char layerName[12];
|
|
|
|
// Note: it is very important to update the layers in order
|
|
for (int i = 0; i < count; i++) {
|
|
sprintf(layerName, "Layer #%d", i);
|
|
startMark(layerName);
|
|
|
|
ATRACE_BEGIN("flushLayer");
|
|
Layer* layer = mLayerUpdates.itemAt(i);
|
|
layer->flush();
|
|
ATRACE_END();
|
|
|
|
mCaches.resourceCache.decrementRefcount(layer);
|
|
|
|
endMark();
|
|
}
|
|
|
|
mLayerUpdates.clear();
|
|
mRenderState.bindFramebuffer(getTargetFbo());
|
|
|
|
endMark();
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::pushLayerUpdate(Layer* layer) {
|
|
if (layer) {
|
|
// Make sure we don't introduce duplicates.
|
|
// SortedVector would do this automatically but we need to respect
|
|
// the insertion order. The linear search is not an issue since
|
|
// this list is usually very short (typically one item, at most a few)
|
|
for (int i = mLayerUpdates.size() - 1; i >= 0; i--) {
|
|
if (mLayerUpdates.itemAt(i) == layer) {
|
|
return;
|
|
}
|
|
}
|
|
mLayerUpdates.push_back(layer);
|
|
mCaches.resourceCache.incrementRefcount(layer);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::cancelLayerUpdate(Layer* layer) {
|
|
if (layer) {
|
|
for (int i = mLayerUpdates.size() - 1; i >= 0; i--) {
|
|
if (mLayerUpdates.itemAt(i) == layer) {
|
|
mLayerUpdates.removeAt(i);
|
|
mCaches.resourceCache.decrementRefcount(layer);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::clearLayerUpdates() {
|
|
size_t count = mLayerUpdates.size();
|
|
if (count > 0) {
|
|
mCaches.resourceCache.lock();
|
|
for (size_t i = 0; i < count; i++) {
|
|
mCaches.resourceCache.decrementRefcountLocked(mLayerUpdates.itemAt(i));
|
|
}
|
|
mCaches.resourceCache.unlock();
|
|
mLayerUpdates.clear();
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::flushLayerUpdates() {
|
|
ATRACE_CALL();
|
|
syncState();
|
|
updateLayers();
|
|
flushLayers();
|
|
// Wait for all the layer updates to be executed
|
|
AutoFence fence;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// State management
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
void OpenGLRenderer::onSnapshotRestored(const Snapshot& removed, const Snapshot& restored) {
|
|
bool restoreViewport = removed.flags & Snapshot::kFlagIsFboLayer;
|
|
bool restoreClip = removed.flags & Snapshot::kFlagClipSet;
|
|
bool restoreLayer = removed.flags & Snapshot::kFlagIsLayer;
|
|
|
|
if (restoreViewport) {
|
|
mRenderState.setViewport(getViewportWidth(), getViewportHeight());
|
|
}
|
|
|
|
if (restoreClip) {
|
|
dirtyClip();
|
|
}
|
|
|
|
if (restoreLayer) {
|
|
endMark(); // Savelayer
|
|
startMark("ComposeLayer");
|
|
composeLayer(removed, restored);
|
|
endMark();
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Layers
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
int OpenGLRenderer::saveLayer(float left, float top, float right, float bottom,
|
|
const SkPaint* paint, int flags, const SkPath* convexMask) {
|
|
const int count = saveSnapshot(flags);
|
|
|
|
if (!currentSnapshot()->isIgnored()) {
|
|
createLayer(left, top, right, bottom, paint, flags, convexMask);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
void OpenGLRenderer::calculateLayerBoundsAndClip(Rect& bounds, Rect& clip, bool fboLayer) {
|
|
const Rect untransformedBounds(bounds);
|
|
|
|
currentTransform()->mapRect(bounds);
|
|
|
|
// Layers only make sense if they are in the framebuffer's bounds
|
|
if (bounds.intersect(*currentClipRect())) {
|
|
// We cannot work with sub-pixels in this case
|
|
bounds.snapToPixelBoundaries();
|
|
|
|
// When the layer is not an FBO, we may use glCopyTexImage so we
|
|
// need to make sure the layer does not extend outside the bounds
|
|
// of the framebuffer
|
|
const Snapshot& previous = *(currentSnapshot()->previous);
|
|
Rect previousViewport(0, 0, previous.getViewportWidth(), previous.getViewportHeight());
|
|
if (!bounds.intersect(previousViewport)) {
|
|
bounds.setEmpty();
|
|
} else if (fboLayer) {
|
|
clip.set(bounds);
|
|
mat4 inverse;
|
|
inverse.loadInverse(*currentTransform());
|
|
inverse.mapRect(clip);
|
|
clip.snapToPixelBoundaries();
|
|
if (clip.intersect(untransformedBounds)) {
|
|
clip.translate(-untransformedBounds.left, -untransformedBounds.top);
|
|
bounds.set(untransformedBounds);
|
|
} else {
|
|
clip.setEmpty();
|
|
}
|
|
}
|
|
} else {
|
|
bounds.setEmpty();
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::updateSnapshotIgnoreForLayer(const Rect& bounds, const Rect& clip,
|
|
bool fboLayer, int alpha) {
|
|
if (bounds.isEmpty() || bounds.getWidth() > mCaches.maxTextureSize ||
|
|
bounds.getHeight() > mCaches.maxTextureSize ||
|
|
(fboLayer && clip.isEmpty())) {
|
|
mSnapshot->empty = fboLayer;
|
|
} else {
|
|
mSnapshot->invisible = mSnapshot->invisible || (alpha <= 0 && fboLayer);
|
|
}
|
|
}
|
|
|
|
int OpenGLRenderer::saveLayerDeferred(float left, float top, float right, float bottom,
|
|
const SkPaint* paint, int flags) {
|
|
const int count = saveSnapshot(flags);
|
|
|
|
if (!currentSnapshot()->isIgnored() && (flags & SkCanvas::kClipToLayer_SaveFlag)) {
|
|
// initialize the snapshot as though it almost represents an FBO layer so deferred draw
|
|
// operations will be able to store and restore the current clip and transform info, and
|
|
// quick rejection will be correct (for display lists)
|
|
|
|
Rect bounds(left, top, right, bottom);
|
|
Rect clip;
|
|
calculateLayerBoundsAndClip(bounds, clip, true);
|
|
updateSnapshotIgnoreForLayer(bounds, clip, true, getAlphaDirect(paint));
|
|
|
|
if (!currentSnapshot()->isIgnored()) {
|
|
mSnapshot->resetTransform(-bounds.left, -bounds.top, 0.0f);
|
|
mSnapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom);
|
|
mSnapshot->initializeViewport(bounds.getWidth(), bounds.getHeight());
|
|
mSnapshot->roundRectClipState = NULL;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/**
|
|
* Layers are viewed by Skia are slightly different than layers in image editing
|
|
* programs (for instance.) When a layer is created, previously created layers
|
|
* and the frame buffer still receive every drawing command. For instance, if a
|
|
* layer is created and a shape intersecting the bounds of the layers and the
|
|
* framebuffer is draw, the shape will be drawn on both (unless the layer was
|
|
* created with the SkCanvas::kClipToLayer_SaveFlag flag.)
|
|
*
|
|
* A way to implement layers is to create an FBO for each layer, backed by an RGBA
|
|
* texture. Unfortunately, this is inefficient as it requires every primitive to
|
|
* be drawn n + 1 times, where n is the number of active layers. In practice this
|
|
* means, for every primitive:
|
|
* - Switch active frame buffer
|
|
* - Change viewport, clip and projection matrix
|
|
* - Issue the drawing
|
|
*
|
|
* Switching rendering target n + 1 times per drawn primitive is extremely costly.
|
|
* To avoid this, layers are implemented in a different way here, at least in the
|
|
* general case. FBOs are used, as an optimization, when the "clip to layer" flag
|
|
* is set. When this flag is set we can redirect all drawing operations into a
|
|
* single FBO.
|
|
*
|
|
* This implementation relies on the frame buffer being at least RGBA 8888. When
|
|
* a layer is created, only a texture is created, not an FBO. The content of the
|
|
* frame buffer contained within the layer's bounds is copied into this texture
|
|
* using glCopyTexImage2D(). The layer's region is then cleared(1) in the frame
|
|
* buffer and drawing continues as normal. This technique therefore treats the
|
|
* frame buffer as a scratch buffer for the layers.
|
|
*
|
|
* To compose the layers back onto the frame buffer, each layer texture
|
|
* (containing the original frame buffer data) is drawn as a simple quad over
|
|
* the frame buffer. The trick is that the quad is set as the composition
|
|
* destination in the blending equation, and the frame buffer becomes the source
|
|
* of the composition.
|
|
*
|
|
* Drawing layers with an alpha value requires an extra step before composition.
|
|
* An empty quad is drawn over the layer's region in the frame buffer. This quad
|
|
* is drawn with the rgba color (0,0,0,alpha). The alpha value offered by the
|
|
* quad is used to multiply the colors in the frame buffer. This is achieved by
|
|
* changing the GL blend functions for the GL_FUNC_ADD blend equation to
|
|
* GL_ZERO, GL_SRC_ALPHA.
|
|
*
|
|
* Because glCopyTexImage2D() can be slow, an alternative implementation might
|
|
* be use to draw a single clipped layer. The implementation described above
|
|
* is correct in every case.
|
|
*
|
|
* (1) The frame buffer is actually not cleared right away. To allow the GPU
|
|
* to potentially optimize series of calls to glCopyTexImage2D, the frame
|
|
* buffer is left untouched until the first drawing operation. Only when
|
|
* something actually gets drawn are the layers regions cleared.
|
|
*/
|
|
bool OpenGLRenderer::createLayer(float left, float top, float right, float bottom,
|
|
const SkPaint* paint, int flags, const SkPath* convexMask) {
|
|
LAYER_LOGD("Requesting layer %.2fx%.2f", right - left, bottom - top);
|
|
LAYER_LOGD("Layer cache size = %d", mCaches.layerCache.getSize());
|
|
|
|
const bool fboLayer = flags & SkCanvas::kClipToLayer_SaveFlag;
|
|
|
|
// Window coordinates of the layer
|
|
Rect clip;
|
|
Rect bounds(left, top, right, bottom);
|
|
calculateLayerBoundsAndClip(bounds, clip, fboLayer);
|
|
updateSnapshotIgnoreForLayer(bounds, clip, fboLayer, getAlphaDirect(paint));
|
|
|
|
// Bail out if we won't draw in this snapshot
|
|
if (currentSnapshot()->isIgnored()) {
|
|
return false;
|
|
}
|
|
|
|
mCaches.activeTexture(0);
|
|
Layer* layer = mCaches.layerCache.get(mRenderState, bounds.getWidth(), bounds.getHeight());
|
|
if (!layer) {
|
|
return false;
|
|
}
|
|
|
|
layer->setPaint(paint);
|
|
layer->layer.set(bounds);
|
|
layer->texCoords.set(0.0f, bounds.getHeight() / float(layer->getHeight()),
|
|
bounds.getWidth() / float(layer->getWidth()), 0.0f);
|
|
|
|
layer->setBlend(true);
|
|
layer->setDirty(false);
|
|
layer->setConvexMask(convexMask); // note: the mask must be cleared before returning to the cache
|
|
|
|
// Save the layer in the snapshot
|
|
mSnapshot->flags |= Snapshot::kFlagIsLayer;
|
|
mSnapshot->layer = layer;
|
|
|
|
startMark("SaveLayer");
|
|
if (fboLayer) {
|
|
return createFboLayer(layer, bounds, clip);
|
|
} else {
|
|
// Copy the framebuffer into the layer
|
|
layer->bindTexture();
|
|
if (!bounds.isEmpty()) {
|
|
if (layer->isEmpty()) {
|
|
// Workaround for some GL drivers. When reading pixels lying outside
|
|
// of the window we should get undefined values for those pixels.
|
|
// Unfortunately some drivers will turn the entire target texture black
|
|
// when reading outside of the window.
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, layer->getWidth(), layer->getHeight(),
|
|
0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
|
|
layer->setEmpty(false);
|
|
}
|
|
|
|
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0,
|
|
bounds.left, getViewportHeight() - bounds.bottom,
|
|
bounds.getWidth(), bounds.getHeight());
|
|
|
|
// Enqueue the buffer coordinates to clear the corresponding region later
|
|
mLayers.push(new Rect(bounds));
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, Rect& clip) {
|
|
layer->clipRect.set(clip);
|
|
layer->setFbo(mCaches.fboCache.get());
|
|
|
|
mSnapshot->region = &mSnapshot->layer->region;
|
|
mSnapshot->flags |= Snapshot::kFlagFboTarget | Snapshot::kFlagIsFboLayer;
|
|
mSnapshot->fbo = layer->getFbo();
|
|
mSnapshot->resetTransform(-bounds.left, -bounds.top, 0.0f);
|
|
mSnapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom);
|
|
mSnapshot->initializeViewport(bounds.getWidth(), bounds.getHeight());
|
|
mSnapshot->roundRectClipState = NULL;
|
|
|
|
endTiling();
|
|
debugOverdraw(false, false);
|
|
// Bind texture to FBO
|
|
mRenderState.bindFramebuffer(layer->getFbo());
|
|
layer->bindTexture();
|
|
|
|
// Initialize the texture if needed
|
|
if (layer->isEmpty()) {
|
|
layer->allocateTexture();
|
|
layer->setEmpty(false);
|
|
}
|
|
|
|
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
|
|
layer->getTexture(), 0);
|
|
|
|
// Expand the startTiling region by 1
|
|
startTilingCurrentClip(true, true);
|
|
|
|
// Clear the FBO, expand the clear region by 1 to get nice bilinear filtering
|
|
mCaches.enableScissor();
|
|
mCaches.setScissor(clip.left - 1.0f, bounds.getHeight() - clip.bottom - 1.0f,
|
|
clip.getWidth() + 2.0f, clip.getHeight() + 2.0f);
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
|
|
dirtyClip();
|
|
|
|
// Change the ortho projection
|
|
mRenderState.setViewport(bounds.getWidth(), bounds.getHeight());
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Read the documentation of createLayer() before doing anything in this method.
|
|
*/
|
|
void OpenGLRenderer::composeLayer(const Snapshot& removed, const Snapshot& restored) {
|
|
if (!removed.layer) {
|
|
ALOGE("Attempting to compose a layer that does not exist");
|
|
return;
|
|
}
|
|
|
|
Layer* layer = removed.layer;
|
|
const Rect& rect = layer->layer;
|
|
const bool fboLayer = removed.flags & Snapshot::kFlagIsFboLayer;
|
|
|
|
bool clipRequired = false;
|
|
calculateQuickRejectForScissor(rect.left, rect.top, rect.right, rect.bottom,
|
|
&clipRequired, NULL, false); // safely ignore return, should never be rejected
|
|
mCaches.setScissorEnabled(mScissorOptimizationDisabled || clipRequired);
|
|
|
|
if (fboLayer) {
|
|
endTiling();
|
|
|
|
// Detach the texture from the FBO
|
|
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
|
|
|
|
layer->removeFbo(false);
|
|
|
|
// Unbind current FBO and restore previous one
|
|
mRenderState.bindFramebuffer(restored.fbo);
|
|
debugOverdraw(true, false);
|
|
|
|
startTilingCurrentClip();
|
|
}
|
|
|
|
if (!fboLayer && layer->getAlpha() < 255) {
|
|
SkPaint layerPaint;
|
|
layerPaint.setAlpha(layer->getAlpha());
|
|
layerPaint.setXfermodeMode(SkXfermode::kDstIn_Mode);
|
|
layerPaint.setColorFilter(layer->getColorFilter());
|
|
|
|
drawColorRect(rect.left, rect.top, rect.right, rect.bottom, &layerPaint, true);
|
|
// Required below, composeLayerRect() will divide by 255
|
|
layer->setAlpha(255);
|
|
}
|
|
|
|
mCaches.unbindMeshBuffer();
|
|
|
|
mCaches.activeTexture(0);
|
|
|
|
// When the layer is stored in an FBO, we can save a bit of fillrate by
|
|
// drawing only the dirty region
|
|
if (fboLayer) {
|
|
dirtyLayer(rect.left, rect.top, rect.right, rect.bottom, *restored.transform);
|
|
composeLayerRegion(layer, rect);
|
|
} else if (!rect.isEmpty()) {
|
|
dirtyLayer(rect.left, rect.top, rect.right, rect.bottom);
|
|
|
|
save(0);
|
|
// the layer contains screen buffer content that shouldn't be alpha modulated
|
|
// (and any necessary alpha modulation was handled drawing into the layer)
|
|
mSnapshot->alpha = 1.0f;
|
|
composeLayerRect(layer, rect, true);
|
|
restore();
|
|
}
|
|
|
|
dirtyClip();
|
|
|
|
// Failing to add the layer to the cache should happen only if the layer is too large
|
|
layer->setConvexMask(NULL);
|
|
if (!mCaches.layerCache.put(layer)) {
|
|
LAYER_LOGD("Deleting layer");
|
|
Caches::getInstance().resourceCache.decrementRefcount(layer);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::drawTextureLayer(Layer* layer, const Rect& rect) {
|
|
float alpha = getLayerAlpha(layer);
|
|
|
|
setupDraw();
|
|
if (layer->getRenderTarget() == GL_TEXTURE_2D) {
|
|
setupDrawWithTexture();
|
|
} else {
|
|
setupDrawWithExternalTexture();
|
|
}
|
|
setupDrawTextureTransform();
|
|
setupDrawColor(alpha, alpha, alpha, alpha);
|
|
setupDrawColorFilter(layer->getColorFilter());
|
|
setupDrawBlending(layer);
|
|
setupDrawProgram();
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(layer->getColorFilter());
|
|
if (layer->getRenderTarget() == GL_TEXTURE_2D) {
|
|
setupDrawTexture(layer->getTexture());
|
|
} else {
|
|
setupDrawExternalTexture(layer->getTexture());
|
|
}
|
|
if (currentTransform()->isPureTranslate() &&
|
|
!layer->getForceFilter() &&
|
|
layer->getWidth() == (uint32_t) rect.getWidth() &&
|
|
layer->getHeight() == (uint32_t) rect.getHeight()) {
|
|
const float x = (int) floorf(rect.left + currentTransform()->getTranslateX() + 0.5f);
|
|
const float y = (int) floorf(rect.top + currentTransform()->getTranslateY() + 0.5f);
|
|
|
|
layer->setFilter(GL_NEAREST);
|
|
setupDrawModelView(kModelViewMode_TranslateAndScale, false,
|
|
x, y, x + rect.getWidth(), y + rect.getHeight(), true);
|
|
} else {
|
|
layer->setFilter(GL_LINEAR);
|
|
setupDrawModelView(kModelViewMode_TranslateAndScale, false,
|
|
rect.left, rect.top, rect.right, rect.bottom);
|
|
}
|
|
setupDrawTextureTransformUniforms(layer->getTexTransform());
|
|
setupDrawMesh(&mMeshVertices[0].x, &mMeshVertices[0].u);
|
|
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount);
|
|
}
|
|
|
|
void OpenGLRenderer::composeLayerRect(Layer* layer, const Rect& rect, bool swap) {
|
|
if (layer->isTextureLayer()) {
|
|
EVENT_LOGD("composeTextureLayerRect");
|
|
resetDrawTextureTexCoords(0.0f, 1.0f, 1.0f, 0.0f);
|
|
drawTextureLayer(layer, rect);
|
|
resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);
|
|
} else {
|
|
EVENT_LOGD("composeHardwareLayerRect");
|
|
const Rect& texCoords = layer->texCoords;
|
|
resetDrawTextureTexCoords(texCoords.left, texCoords.top,
|
|
texCoords.right, texCoords.bottom);
|
|
|
|
float x = rect.left;
|
|
float y = rect.top;
|
|
bool simpleTransform = currentTransform()->isPureTranslate() &&
|
|
layer->getWidth() == (uint32_t) rect.getWidth() &&
|
|
layer->getHeight() == (uint32_t) rect.getHeight();
|
|
|
|
if (simpleTransform) {
|
|
// When we're swapping, the layer is already in screen coordinates
|
|
if (!swap) {
|
|
x = (int) floorf(rect.left + currentTransform()->getTranslateX() + 0.5f);
|
|
y = (int) floorf(rect.top + currentTransform()->getTranslateY() + 0.5f);
|
|
}
|
|
|
|
layer->setFilter(GL_NEAREST, true);
|
|
} else {
|
|
layer->setFilter(GL_LINEAR, true);
|
|
}
|
|
|
|
SkPaint layerPaint;
|
|
layerPaint.setAlpha(getLayerAlpha(layer) * 255);
|
|
layerPaint.setXfermodeMode(layer->getMode());
|
|
layerPaint.setColorFilter(layer->getColorFilter());
|
|
|
|
bool blend = layer->isBlend() || getLayerAlpha(layer) < 1.0f;
|
|
drawTextureMesh(x, y, x + rect.getWidth(), y + rect.getHeight(),
|
|
layer->getTexture(), &layerPaint, blend,
|
|
&mMeshVertices[0].x, &mMeshVertices[0].u,
|
|
GL_TRIANGLE_STRIP, gMeshCount, swap, swap || simpleTransform);
|
|
|
|
resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Issues the command X, and if we're composing a save layer to the fbo or drawing a newly updated
|
|
* hardware layer with overdraw debug on, draws again to the stencil only, so that these draw
|
|
* operations are correctly counted twice for overdraw. NOTE: assumes composeLayerRegion only used
|
|
* by saveLayer's restore
|
|
*/
|
|
#define DRAW_DOUBLE_STENCIL_IF(COND, DRAW_COMMAND) { \
|
|
DRAW_COMMAND; \
|
|
if (CC_UNLIKELY(mCaches.debugOverdraw && getTargetFbo() == 0 && COND)) { \
|
|
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); \
|
|
DRAW_COMMAND; \
|
|
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); \
|
|
} \
|
|
}
|
|
|
|
#define DRAW_DOUBLE_STENCIL(DRAW_COMMAND) DRAW_DOUBLE_STENCIL_IF(true, DRAW_COMMAND)
|
|
|
|
// This class is purely for inspection. It inherits from SkShader, but Skia does not know how to
|
|
// use it. The OpenGLRenderer will look at it to find its Layer and whether it is opaque.
|
|
class LayerShader : public SkShader {
|
|
public:
|
|
LayerShader(Layer* layer, const SkMatrix* localMatrix)
|
|
: INHERITED(localMatrix)
|
|
, mLayer(layer) {
|
|
}
|
|
|
|
virtual bool asACustomShader(void** data) const {
|
|
if (data) {
|
|
*data = static_cast<void*>(mLayer);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
virtual bool isOpaque() const {
|
|
return !mLayer->isBlend();
|
|
}
|
|
|
|
protected:
|
|
virtual void shadeSpan(int x, int y, SkPMColor[], int count) {
|
|
LOG_ALWAYS_FATAL("LayerShader should never be drawn with raster backend.");
|
|
}
|
|
|
|
virtual void flatten(SkWriteBuffer&) const {
|
|
LOG_ALWAYS_FATAL("LayerShader should never be flattened.");
|
|
}
|
|
|
|
virtual Factory getFactory() const {
|
|
LOG_ALWAYS_FATAL("LayerShader should never be created from a stream.");
|
|
return NULL;
|
|
}
|
|
private:
|
|
// Unowned.
|
|
Layer* mLayer;
|
|
typedef SkShader INHERITED;
|
|
};
|
|
|
|
void OpenGLRenderer::composeLayerRegion(Layer* layer, const Rect& rect) {
|
|
if (CC_UNLIKELY(layer->region.isEmpty())) return; // nothing to draw
|
|
|
|
if (layer->getConvexMask()) {
|
|
save(SkCanvas::kClip_SaveFlag | SkCanvas::kMatrix_SaveFlag);
|
|
|
|
// clip to the area of the layer the mask can be larger
|
|
clipRect(rect.left, rect.top, rect.right, rect.bottom, SkRegion::kIntersect_Op);
|
|
|
|
SkPaint paint;
|
|
paint.setAntiAlias(true);
|
|
paint.setColor(SkColorSetARGB(int(getLayerAlpha(layer) * 255), 0, 0, 0));
|
|
|
|
// create LayerShader to map SaveLayer content into subsequent draw
|
|
SkMatrix shaderMatrix;
|
|
shaderMatrix.setTranslate(rect.left, rect.bottom);
|
|
shaderMatrix.preScale(1, -1);
|
|
LayerShader layerShader(layer, &shaderMatrix);
|
|
paint.setShader(&layerShader);
|
|
|
|
// Since the drawing primitive is defined in local drawing space,
|
|
// we don't need to modify the draw matrix
|
|
const SkPath* maskPath = layer->getConvexMask();
|
|
DRAW_DOUBLE_STENCIL(drawConvexPath(*maskPath, &paint));
|
|
|
|
paint.setShader(NULL);
|
|
restore();
|
|
|
|
return;
|
|
}
|
|
|
|
if (layer->region.isRect()) {
|
|
layer->setRegionAsRect();
|
|
|
|
DRAW_DOUBLE_STENCIL(composeLayerRect(layer, layer->regionRect));
|
|
|
|
layer->region.clear();
|
|
return;
|
|
}
|
|
|
|
EVENT_LOGD("composeLayerRegion");
|
|
// standard Region based draw
|
|
size_t count;
|
|
const android::Rect* rects;
|
|
Region safeRegion;
|
|
if (CC_LIKELY(hasRectToRectTransform())) {
|
|
rects = layer->region.getArray(&count);
|
|
} else {
|
|
safeRegion = Region::createTJunctionFreeRegion(layer->region);
|
|
rects = safeRegion.getArray(&count);
|
|
}
|
|
|
|
const float alpha = getLayerAlpha(layer);
|
|
const float texX = 1.0f / float(layer->getWidth());
|
|
const float texY = 1.0f / float(layer->getHeight());
|
|
const float height = rect.getHeight();
|
|
|
|
setupDraw();
|
|
|
|
// We must get (and therefore bind) the region mesh buffer
|
|
// after we setup drawing in case we need to mess with the
|
|
// stencil buffer in setupDraw()
|
|
TextureVertex* mesh = mCaches.getRegionMesh();
|
|
uint32_t numQuads = 0;
|
|
|
|
setupDrawWithTexture();
|
|
setupDrawColor(alpha, alpha, alpha, alpha);
|
|
setupDrawColorFilter(layer->getColorFilter());
|
|
setupDrawBlending(layer);
|
|
setupDrawProgram();
|
|
setupDrawDirtyRegionsDisabled();
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(layer->getColorFilter());
|
|
setupDrawTexture(layer->getTexture());
|
|
if (currentTransform()->isPureTranslate()) {
|
|
const float x = (int) floorf(rect.left + currentTransform()->getTranslateX() + 0.5f);
|
|
const float y = (int) floorf(rect.top + currentTransform()->getTranslateY() + 0.5f);
|
|
|
|
layer->setFilter(GL_NEAREST);
|
|
setupDrawModelView(kModelViewMode_Translate, false,
|
|
x, y, x + rect.getWidth(), y + rect.getHeight(), true);
|
|
} else {
|
|
layer->setFilter(GL_LINEAR);
|
|
setupDrawModelView(kModelViewMode_Translate, false,
|
|
rect.left, rect.top, rect.right, rect.bottom);
|
|
}
|
|
setupDrawMeshIndices(&mesh[0].x, &mesh[0].u);
|
|
|
|
for (size_t i = 0; i < count; i++) {
|
|
const android::Rect* r = &rects[i];
|
|
|
|
const float u1 = r->left * texX;
|
|
const float v1 = (height - r->top) * texY;
|
|
const float u2 = r->right * texX;
|
|
const float v2 = (height - r->bottom) * texY;
|
|
|
|
// TODO: Reject quads outside of the clip
|
|
TextureVertex::set(mesh++, r->left, r->top, u1, v1);
|
|
TextureVertex::set(mesh++, r->right, r->top, u2, v1);
|
|
TextureVertex::set(mesh++, r->left, r->bottom, u1, v2);
|
|
TextureVertex::set(mesh++, r->right, r->bottom, u2, v2);
|
|
|
|
numQuads++;
|
|
|
|
if (numQuads >= gMaxNumberOfQuads) {
|
|
DRAW_DOUBLE_STENCIL(glDrawElements(GL_TRIANGLES, numQuads * 6,
|
|
GL_UNSIGNED_SHORT, NULL));
|
|
numQuads = 0;
|
|
mesh = mCaches.getRegionMesh();
|
|
}
|
|
}
|
|
|
|
if (numQuads > 0) {
|
|
DRAW_DOUBLE_STENCIL(glDrawElements(GL_TRIANGLES, numQuads * 6,
|
|
GL_UNSIGNED_SHORT, NULL));
|
|
}
|
|
|
|
#if DEBUG_LAYERS_AS_REGIONS
|
|
drawRegionRectsDebug(layer->region);
|
|
#endif
|
|
|
|
layer->region.clear();
|
|
}
|
|
|
|
#if DEBUG_LAYERS_AS_REGIONS
|
|
void OpenGLRenderer::drawRegionRectsDebug(const Region& region) {
|
|
size_t count;
|
|
const android::Rect* rects = region.getArray(&count);
|
|
|
|
uint32_t colors[] = {
|
|
0x7fff0000, 0x7f00ff00,
|
|
0x7f0000ff, 0x7fff00ff,
|
|
};
|
|
|
|
int offset = 0;
|
|
int32_t top = rects[0].top;
|
|
|
|
for (size_t i = 0; i < count; i++) {
|
|
if (top != rects[i].top) {
|
|
offset ^= 0x2;
|
|
top = rects[i].top;
|
|
}
|
|
|
|
SkPaint paint;
|
|
paint.setColor(colors[offset + (i & 0x1)]);
|
|
Rect r(rects[i].left, rects[i].top, rects[i].right, rects[i].bottom);
|
|
drawColorRect(r.left, r.top, r.right, r.bottom, paint);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void OpenGLRenderer::drawRegionRects(const SkRegion& region, const SkPaint& paint, bool dirty) {
|
|
Vector<float> rects;
|
|
|
|
SkRegion::Iterator it(region);
|
|
while (!it.done()) {
|
|
const SkIRect& r = it.rect();
|
|
rects.push(r.fLeft);
|
|
rects.push(r.fTop);
|
|
rects.push(r.fRight);
|
|
rects.push(r.fBottom);
|
|
it.next();
|
|
}
|
|
|
|
drawColorRects(rects.array(), rects.size(), &paint, true, dirty, false);
|
|
}
|
|
|
|
void OpenGLRenderer::dirtyLayer(const float left, const float top,
|
|
const float right, const float bottom, const mat4 transform) {
|
|
if (hasLayer()) {
|
|
Rect bounds(left, top, right, bottom);
|
|
transform.mapRect(bounds);
|
|
dirtyLayerUnchecked(bounds, getRegion());
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::dirtyLayer(const float left, const float top,
|
|
const float right, const float bottom) {
|
|
if (hasLayer()) {
|
|
Rect bounds(left, top, right, bottom);
|
|
dirtyLayerUnchecked(bounds, getRegion());
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::dirtyLayerUnchecked(Rect& bounds, Region* region) {
|
|
if (bounds.intersect(*currentClipRect())) {
|
|
bounds.snapToPixelBoundaries();
|
|
android::Rect dirty(bounds.left, bounds.top, bounds.right, bounds.bottom);
|
|
if (!dirty.isEmpty()) {
|
|
region->orSelf(dirty);
|
|
}
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::issueIndexedQuadDraw(Vertex* mesh, GLsizei quadsCount) {
|
|
GLsizei elementsCount = quadsCount * 6;
|
|
while (elementsCount > 0) {
|
|
GLsizei drawCount = min(elementsCount, (GLsizei) gMaxNumberOfQuads * 6);
|
|
|
|
setupDrawIndexedVertices(&mesh[0].x);
|
|
glDrawElements(GL_TRIANGLES, drawCount, GL_UNSIGNED_SHORT, NULL);
|
|
|
|
elementsCount -= drawCount;
|
|
// Though there are 4 vertices in a quad, we use 6 indices per
|
|
// quad to draw with GL_TRIANGLES
|
|
mesh += (drawCount / 6) * 4;
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::clearLayerRegions() {
|
|
const size_t count = mLayers.size();
|
|
if (count == 0) return;
|
|
|
|
if (!currentSnapshot()->isIgnored()) {
|
|
EVENT_LOGD("clearLayerRegions");
|
|
// Doing several glScissor/glClear here can negatively impact
|
|
// GPUs with a tiler architecture, instead we draw quads with
|
|
// the Clear blending mode
|
|
|
|
// The list contains bounds that have already been clipped
|
|
// against their initial clip rect, and the current clip
|
|
// is likely different so we need to disable clipping here
|
|
bool scissorChanged = mCaches.disableScissor();
|
|
|
|
Vertex mesh[count * 4];
|
|
Vertex* vertex = mesh;
|
|
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
Rect* bounds = mLayers.itemAt(i);
|
|
|
|
Vertex::set(vertex++, bounds->left, bounds->top);
|
|
Vertex::set(vertex++, bounds->right, bounds->top);
|
|
Vertex::set(vertex++, bounds->left, bounds->bottom);
|
|
Vertex::set(vertex++, bounds->right, bounds->bottom);
|
|
|
|
delete bounds;
|
|
}
|
|
// We must clear the list of dirty rects before we
|
|
// call setupDraw() to prevent stencil setup to do
|
|
// the same thing again
|
|
mLayers.clear();
|
|
|
|
SkPaint clearPaint;
|
|
clearPaint.setXfermodeMode(SkXfermode::kClear_Mode);
|
|
|
|
setupDraw(false);
|
|
setupDrawColor(0.0f, 0.0f, 0.0f, 1.0f);
|
|
setupDrawBlending(&clearPaint, true);
|
|
setupDrawProgram();
|
|
setupDrawPureColorUniforms();
|
|
setupDrawModelView(kModelViewMode_Translate, false,
|
|
0.0f, 0.0f, 0.0f, 0.0f, true);
|
|
|
|
issueIndexedQuadDraw(&mesh[0], count);
|
|
|
|
if (scissorChanged) mCaches.enableScissor();
|
|
} else {
|
|
for (uint32_t i = 0; i < count; i++) {
|
|
delete mLayers.itemAt(i);
|
|
}
|
|
mLayers.clear();
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// State Deferral
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool OpenGLRenderer::storeDisplayState(DeferredDisplayState& state, int stateDeferFlags) {
|
|
const Rect* currentClip = currentClipRect();
|
|
const mat4* currentMatrix = currentTransform();
|
|
|
|
if (stateDeferFlags & kStateDeferFlag_Draw) {
|
|
// state has bounds initialized in local coordinates
|
|
if (!state.mBounds.isEmpty()) {
|
|
currentMatrix->mapRect(state.mBounds);
|
|
Rect clippedBounds(state.mBounds);
|
|
// NOTE: if we ever want to use this clipping info to drive whether the scissor
|
|
// is used, it should more closely duplicate the quickReject logic (in how it uses
|
|
// snapToPixelBoundaries)
|
|
|
|
if(!clippedBounds.intersect(*currentClip)) {
|
|
// quick rejected
|
|
return true;
|
|
}
|
|
|
|
state.mClipSideFlags = kClipSide_None;
|
|
if (!currentClip->contains(state.mBounds)) {
|
|
int& flags = state.mClipSideFlags;
|
|
// op partially clipped, so record which sides are clipped for clip-aware merging
|
|
if (currentClip->left > state.mBounds.left) flags |= kClipSide_Left;
|
|
if (currentClip->top > state.mBounds.top) flags |= kClipSide_Top;
|
|
if (currentClip->right < state.mBounds.right) flags |= kClipSide_Right;
|
|
if (currentClip->bottom < state.mBounds.bottom) flags |= kClipSide_Bottom;
|
|
}
|
|
state.mBounds.set(clippedBounds);
|
|
} else {
|
|
// Empty bounds implies size unknown. Label op as conservatively clipped to disable
|
|
// overdraw avoidance (since we don't know what it overlaps)
|
|
state.mClipSideFlags = kClipSide_ConservativeFull;
|
|
state.mBounds.set(*currentClip);
|
|
}
|
|
}
|
|
|
|
state.mClipValid = (stateDeferFlags & kStateDeferFlag_Clip);
|
|
if (state.mClipValid) {
|
|
state.mClip.set(*currentClip);
|
|
}
|
|
|
|
// Transform, drawModifiers, and alpha always deferred, since they are used by state operations
|
|
// (Note: saveLayer/restore use colorFilter and alpha, so we just save restore everything)
|
|
state.mMatrix.load(*currentMatrix);
|
|
state.mDrawModifiers = mDrawModifiers;
|
|
state.mAlpha = currentSnapshot()->alpha;
|
|
|
|
// always store/restore, since it's just a pointer
|
|
state.mRoundRectClipState = currentSnapshot()->roundRectClipState;
|
|
return false;
|
|
}
|
|
|
|
void OpenGLRenderer::restoreDisplayState(const DeferredDisplayState& state, bool skipClipRestore) {
|
|
setMatrix(state.mMatrix);
|
|
mSnapshot->alpha = state.mAlpha;
|
|
mDrawModifiers = state.mDrawModifiers;
|
|
mSnapshot->roundRectClipState = state.mRoundRectClipState;
|
|
|
|
if (state.mClipValid && !skipClipRestore) {
|
|
mSnapshot->setClip(state.mClip.left, state.mClip.top,
|
|
state.mClip.right, state.mClip.bottom);
|
|
dirtyClip();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Merged multidraw (such as in drawText and drawBitmaps rely on the fact that no clipping is done
|
|
* in the draw path. Instead, clipping is done ahead of time - either as a single clip rect (when at
|
|
* least one op is clipped), or disabled entirely (because no merged op is clipped)
|
|
*
|
|
* This method should be called when restoreDisplayState() won't be restoring the clip
|
|
*/
|
|
void OpenGLRenderer::setupMergedMultiDraw(const Rect* clipRect) {
|
|
if (clipRect != NULL) {
|
|
mSnapshot->setClip(clipRect->left, clipRect->top, clipRect->right, clipRect->bottom);
|
|
} else {
|
|
mSnapshot->setClip(0, 0, getWidth(), getHeight());
|
|
}
|
|
dirtyClip();
|
|
mCaches.setScissorEnabled(clipRect != NULL || mScissorOptimizationDisabled);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Clipping
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
void OpenGLRenderer::setScissorFromClip() {
|
|
Rect clip(*currentClipRect());
|
|
clip.snapToPixelBoundaries();
|
|
|
|
if (mCaches.setScissor(clip.left, getViewportHeight() - clip.bottom,
|
|
clip.getWidth(), clip.getHeight())) {
|
|
mDirtyClip = false;
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::ensureStencilBuffer() {
|
|
// Thanks to the mismatch between EGL and OpenGL ES FBO we
|
|
// cannot attach a stencil buffer to fbo0 dynamically. Let's
|
|
// just hope we have one when hasLayer() returns false.
|
|
if (hasLayer()) {
|
|
attachStencilBufferToLayer(currentSnapshot()->layer);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::attachStencilBufferToLayer(Layer* layer) {
|
|
// The layer's FBO is already bound when we reach this stage
|
|
if (!layer->getStencilRenderBuffer()) {
|
|
// GL_QCOM_tiled_rendering doesn't like it if a renderbuffer
|
|
// is attached after we initiated tiling. We must turn it off,
|
|
// attach the new render buffer then turn tiling back on
|
|
endTiling();
|
|
|
|
RenderBuffer* buffer = mCaches.renderBufferCache.get(
|
|
Stencil::getSmallestStencilFormat(), layer->getWidth(), layer->getHeight());
|
|
layer->setStencilRenderBuffer(buffer);
|
|
|
|
startTiling(layer->clipRect, layer->layer.getHeight());
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setStencilFromClip() {
|
|
if (!mCaches.debugOverdraw) {
|
|
if (!currentSnapshot()->clipRegion->isEmpty()) {
|
|
EVENT_LOGD("setStencilFromClip - enabling");
|
|
|
|
// NOTE: The order here is important, we must set dirtyClip to false
|
|
// before any draw call to avoid calling back into this method
|
|
mDirtyClip = false;
|
|
|
|
ensureStencilBuffer();
|
|
|
|
mCaches.stencil.enableWrite();
|
|
|
|
// Clear and update the stencil, but first make sure we restrict drawing
|
|
// to the region's bounds
|
|
bool resetScissor = mCaches.enableScissor();
|
|
if (resetScissor) {
|
|
// The scissor was not set so we now need to update it
|
|
setScissorFromClip();
|
|
}
|
|
mCaches.stencil.clear();
|
|
|
|
// stash and disable the outline clip state, since stencil doesn't account for outline
|
|
bool storedSkipOutlineClip = mSkipOutlineClip;
|
|
mSkipOutlineClip = true;
|
|
|
|
SkPaint paint;
|
|
paint.setColor(SK_ColorBLACK);
|
|
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
|
|
|
|
// NOTE: We could use the region contour path to generate a smaller mesh
|
|
// Since we are using the stencil we could use the red book path
|
|
// drawing technique. It might increase bandwidth usage though.
|
|
|
|
// The last parameter is important: we are not drawing in the color buffer
|
|
// so we don't want to dirty the current layer, if any
|
|
drawRegionRects(*(currentSnapshot()->clipRegion), paint, false);
|
|
if (resetScissor) mCaches.disableScissor();
|
|
mSkipOutlineClip = storedSkipOutlineClip;
|
|
|
|
mCaches.stencil.enableTest();
|
|
|
|
// Draw the region used to generate the stencil if the appropriate debug
|
|
// mode is enabled
|
|
if (mCaches.debugStencilClip == Caches::kStencilShowRegion) {
|
|
paint.setColor(0x7f0000ff);
|
|
paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
|
|
drawRegionRects(*(currentSnapshot()->clipRegion), paint);
|
|
}
|
|
} else {
|
|
EVENT_LOGD("setStencilFromClip - disabling");
|
|
mCaches.stencil.disable();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns false and sets scissor enable based upon bounds if drawing won't be clipped out.
|
|
*
|
|
* @param paint if not null, the bounds will be expanded to account for stroke depending on paint
|
|
* style, and tessellated AA ramp
|
|
*/
|
|
bool OpenGLRenderer::quickRejectSetupScissor(float left, float top, float right, float bottom,
|
|
const SkPaint* paint) {
|
|
bool snapOut = paint && paint->isAntiAlias();
|
|
|
|
if (paint && paint->getStyle() != SkPaint::kFill_Style) {
|
|
float outset = paint->getStrokeWidth() * 0.5f;
|
|
left -= outset;
|
|
top -= outset;
|
|
right += outset;
|
|
bottom += outset;
|
|
}
|
|
|
|
bool clipRequired = false;
|
|
bool roundRectClipRequired = false;
|
|
if (calculateQuickRejectForScissor(left, top, right, bottom,
|
|
&clipRequired, &roundRectClipRequired, snapOut)) {
|
|
return true;
|
|
}
|
|
|
|
// not quick rejected, so enable the scissor if clipRequired
|
|
mCaches.setScissorEnabled(mScissorOptimizationDisabled || clipRequired);
|
|
mSkipOutlineClip = !roundRectClipRequired;
|
|
return false;
|
|
}
|
|
|
|
void OpenGLRenderer::debugClip() {
|
|
#if DEBUG_CLIP_REGIONS
|
|
if (!currentSnapshot()->clipRegion->isEmpty()) {
|
|
SkPaint paint;
|
|
paint.setColor(0x7f00ff00);
|
|
drawRegionRects(*(currentSnapshot()->clipRegion, paint);
|
|
|
|
}
|
|
#endif
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Drawing commands
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
void OpenGLRenderer::setupDraw(bool clearLayer) {
|
|
// TODO: It would be best if we could do this before quickRejectSetupScissor()
|
|
// changes the scissor test state
|
|
if (clearLayer) clearLayerRegions();
|
|
// Make sure setScissor & setStencil happen at the beginning of
|
|
// this method
|
|
if (mDirtyClip) {
|
|
if (mCaches.scissorEnabled) {
|
|
setScissorFromClip();
|
|
}
|
|
|
|
if (clearLayer) {
|
|
setStencilFromClip();
|
|
} else {
|
|
// While clearing layer, force disable stencil buffer, since
|
|
// it's invalid to stencil-clip *during* the layer clear
|
|
mCaches.stencil.disable();
|
|
}
|
|
}
|
|
|
|
mDescription.reset();
|
|
|
|
mSetShaderColor = false;
|
|
mColorSet = false;
|
|
mColorA = mColorR = mColorG = mColorB = 0.0f;
|
|
mTextureUnit = 0;
|
|
mTrackDirtyRegions = true;
|
|
|
|
// Enable debug highlight when what we're about to draw is tested against
|
|
// the stencil buffer and if stencil highlight debugging is on
|
|
mDescription.hasDebugHighlight = !mCaches.debugOverdraw &&
|
|
mCaches.debugStencilClip == Caches::kStencilShowHighlight &&
|
|
mCaches.stencil.isTestEnabled();
|
|
|
|
mDescription.emulateStencil = mCountOverdraw;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawWithTexture(bool isAlpha8) {
|
|
mDescription.hasTexture = true;
|
|
mDescription.hasAlpha8Texture = isAlpha8;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawWithTextureAndColor(bool isAlpha8) {
|
|
mDescription.hasTexture = true;
|
|
mDescription.hasColors = true;
|
|
mDescription.hasAlpha8Texture = isAlpha8;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawWithExternalTexture() {
|
|
mDescription.hasExternalTexture = true;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawNoTexture() {
|
|
mCaches.disableTexCoordsVertexArray();
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawVertexAlpha(bool useShadowAlphaInterp) {
|
|
mDescription.hasVertexAlpha = true;
|
|
mDescription.useShadowAlphaInterp = useShadowAlphaInterp;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawColor(int color, int alpha) {
|
|
mColorA = alpha / 255.0f;
|
|
mColorR = mColorA * ((color >> 16) & 0xFF) / 255.0f;
|
|
mColorG = mColorA * ((color >> 8) & 0xFF) / 255.0f;
|
|
mColorB = mColorA * ((color ) & 0xFF) / 255.0f;
|
|
mColorSet = true;
|
|
mSetShaderColor = mDescription.setColorModulate(mColorA);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawAlpha8Color(int color, int alpha) {
|
|
mColorA = alpha / 255.0f;
|
|
mColorR = mColorA * ((color >> 16) & 0xFF) / 255.0f;
|
|
mColorG = mColorA * ((color >> 8) & 0xFF) / 255.0f;
|
|
mColorB = mColorA * ((color ) & 0xFF) / 255.0f;
|
|
mColorSet = true;
|
|
mSetShaderColor = mDescription.setAlpha8ColorModulate(mColorR, mColorG, mColorB, mColorA);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawTextGamma(const SkPaint* paint) {
|
|
mCaches.fontRenderer->describe(mDescription, paint);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawColor(float r, float g, float b, float a) {
|
|
mColorA = a;
|
|
mColorR = r;
|
|
mColorG = g;
|
|
mColorB = b;
|
|
mColorSet = true;
|
|
mSetShaderColor = mDescription.setColorModulate(a);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawShader(const SkShader* shader) {
|
|
if (shader != NULL) {
|
|
SkiaShader::describe(&mCaches, mDescription, mExtensions, *shader);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawColorFilter(const SkColorFilter* filter) {
|
|
if (filter == NULL) {
|
|
return;
|
|
}
|
|
|
|
SkXfermode::Mode mode;
|
|
if (filter->asColorMode(NULL, &mode)) {
|
|
mDescription.colorOp = ProgramDescription::kColorBlend;
|
|
mDescription.colorMode = mode;
|
|
} else if (filter->asColorMatrix(NULL)) {
|
|
mDescription.colorOp = ProgramDescription::kColorMatrix;
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::accountForClear(SkXfermode::Mode mode) {
|
|
if (mColorSet && mode == SkXfermode::kClear_Mode) {
|
|
mColorA = 1.0f;
|
|
mColorR = mColorG = mColorB = 0.0f;
|
|
mSetShaderColor = mDescription.modulate = true;
|
|
}
|
|
}
|
|
|
|
static bool isBlendedColorFilter(const SkColorFilter* filter) {
|
|
if (filter == NULL) {
|
|
return false;
|
|
}
|
|
return (filter->getFlags() & SkColorFilter::kAlphaUnchanged_Flag) == 0;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawBlending(const Layer* layer, bool swapSrcDst) {
|
|
SkXfermode::Mode mode = layer->getMode();
|
|
// When the blending mode is kClear_Mode, we need to use a modulate color
|
|
// argb=1,0,0,0
|
|
accountForClear(mode);
|
|
// TODO: check shader blending, once we have shader drawing support for layers.
|
|
bool blend = layer->isBlend() || getLayerAlpha(layer) < 1.0f ||
|
|
(mColorSet && mColorA < 1.0f) || isBlendedColorFilter(layer->getColorFilter());
|
|
chooseBlending(blend, mode, mDescription, swapSrcDst);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawBlending(const SkPaint* paint, bool blend, bool swapSrcDst) {
|
|
SkXfermode::Mode mode = getXfermodeDirect(paint);
|
|
// When the blending mode is kClear_Mode, we need to use a modulate color
|
|
// argb=1,0,0,0
|
|
accountForClear(mode);
|
|
blend |= (mColorSet && mColorA < 1.0f) ||
|
|
(getShader(paint) && !getShader(paint)->isOpaque()) ||
|
|
isBlendedColorFilter(getColorFilter(paint));
|
|
chooseBlending(blend, mode, mDescription, swapSrcDst);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawProgram() {
|
|
useProgram(mCaches.programCache.get(mDescription));
|
|
if (mDescription.hasRoundRectClip) {
|
|
// TODO: avoid doing this repeatedly, stashing state pointer in program
|
|
const RoundRectClipState* state = mSnapshot->roundRectClipState;
|
|
const Rect& innerRect = state->innerRect;
|
|
glUniform4f(mCaches.currentProgram->getUniform("roundRectInnerRectLTRB"),
|
|
innerRect.left, innerRect.top,
|
|
innerRect.right, innerRect.bottom);
|
|
glUniform1f(mCaches.currentProgram->getUniform("roundRectRadius"),
|
|
state->radius);
|
|
glUniformMatrix4fv(mCaches.currentProgram->getUniform("roundRectInvTransform"),
|
|
1, GL_FALSE, &state->matrix.data[0]);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawDirtyRegionsDisabled() {
|
|
mTrackDirtyRegions = false;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawModelView(ModelViewMode mode, bool offset,
|
|
float left, float top, float right, float bottom, bool ignoreTransform) {
|
|
mModelViewMatrix.loadTranslate(left, top, 0.0f);
|
|
if (mode == kModelViewMode_TranslateAndScale) {
|
|
mModelViewMatrix.scale(right - left, bottom - top, 1.0f);
|
|
}
|
|
|
|
bool dirty = right - left > 0.0f && bottom - top > 0.0f;
|
|
const Matrix4& transformMatrix = ignoreTransform ? Matrix4::identity() : *currentTransform();
|
|
mCaches.currentProgram->set(mSnapshot->getOrthoMatrix(), mModelViewMatrix, transformMatrix, offset);
|
|
if (dirty && mTrackDirtyRegions) {
|
|
if (!ignoreTransform) {
|
|
dirtyLayer(left, top, right, bottom, *currentTransform());
|
|
} else {
|
|
dirtyLayer(left, top, right, bottom);
|
|
}
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawColorUniforms(bool hasShader) {
|
|
if ((mColorSet && !hasShader) || (hasShader && mSetShaderColor)) {
|
|
mCaches.currentProgram->setColor(mColorR, mColorG, mColorB, mColorA);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawPureColorUniforms() {
|
|
if (mSetShaderColor) {
|
|
mCaches.currentProgram->setColor(mColorR, mColorG, mColorB, mColorA);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawShaderUniforms(const SkShader* shader, bool ignoreTransform) {
|
|
if (shader == NULL) {
|
|
return;
|
|
}
|
|
|
|
if (ignoreTransform) {
|
|
// if ignoreTransform=true was passed to setupDrawModelView, undo currentTransform()
|
|
// because it was built into modelView / the geometry, and the description needs to
|
|
// compensate.
|
|
mat4 modelViewWithoutTransform;
|
|
modelViewWithoutTransform.loadInverse(*currentTransform());
|
|
modelViewWithoutTransform.multiply(mModelViewMatrix);
|
|
mModelViewMatrix.load(modelViewWithoutTransform);
|
|
}
|
|
|
|
SkiaShader::setupProgram(&mCaches, mModelViewMatrix, &mTextureUnit, mExtensions, *shader);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawColorFilterUniforms(const SkColorFilter* filter) {
|
|
if (NULL == filter) {
|
|
return;
|
|
}
|
|
|
|
SkColor color;
|
|
SkXfermode::Mode mode;
|
|
if (filter->asColorMode(&color, &mode)) {
|
|
const int alpha = SkColorGetA(color);
|
|
const GLfloat a = alpha / 255.0f;
|
|
const GLfloat r = a * SkColorGetR(color) / 255.0f;
|
|
const GLfloat g = a * SkColorGetG(color) / 255.0f;
|
|
const GLfloat b = a * SkColorGetB(color) / 255.0f;
|
|
glUniform4f(mCaches.currentProgram->getUniform("colorBlend"), r, g, b, a);
|
|
return;
|
|
}
|
|
|
|
SkScalar srcColorMatrix[20];
|
|
if (filter->asColorMatrix(srcColorMatrix)) {
|
|
|
|
float colorMatrix[16];
|
|
memcpy(colorMatrix, srcColorMatrix, 4 * sizeof(float));
|
|
memcpy(&colorMatrix[4], &srcColorMatrix[5], 4 * sizeof(float));
|
|
memcpy(&colorMatrix[8], &srcColorMatrix[10], 4 * sizeof(float));
|
|
memcpy(&colorMatrix[12], &srcColorMatrix[15], 4 * sizeof(float));
|
|
|
|
// Skia uses the range [0..255] for the addition vector, but we need
|
|
// the [0..1] range to apply the vector in GLSL
|
|
float colorVector[4];
|
|
colorVector[0] = srcColorMatrix[4] / 255.0f;
|
|
colorVector[1] = srcColorMatrix[9] / 255.0f;
|
|
colorVector[2] = srcColorMatrix[14] / 255.0f;
|
|
colorVector[3] = srcColorMatrix[19] / 255.0f;
|
|
|
|
glUniformMatrix4fv(mCaches.currentProgram->getUniform("colorMatrix"), 1,
|
|
GL_FALSE, colorMatrix);
|
|
glUniform4fv(mCaches.currentProgram->getUniform("colorMatrixVector"), 1, colorVector);
|
|
return;
|
|
}
|
|
|
|
// it is an error if we ever get here
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawTextGammaUniforms() {
|
|
mCaches.fontRenderer->setupProgram(mDescription, mCaches.currentProgram);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawSimpleMesh() {
|
|
bool force = mCaches.bindMeshBuffer();
|
|
mCaches.bindPositionVertexPointer(force, 0);
|
|
mCaches.unbindIndicesBuffer();
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawTexture(GLuint texture) {
|
|
if (texture) bindTexture(texture);
|
|
mTextureUnit++;
|
|
mCaches.enableTexCoordsVertexArray();
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawExternalTexture(GLuint texture) {
|
|
bindExternalTexture(texture);
|
|
mTextureUnit++;
|
|
mCaches.enableTexCoordsVertexArray();
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawTextureTransform() {
|
|
mDescription.hasTextureTransform = true;
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawTextureTransformUniforms(mat4& transform) {
|
|
glUniformMatrix4fv(mCaches.currentProgram->getUniform("mainTextureTransform"), 1,
|
|
GL_FALSE, &transform.data[0]);
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawMesh(const GLvoid* vertices,
|
|
const GLvoid* texCoords, GLuint vbo) {
|
|
bool force = false;
|
|
if (!vertices || vbo) {
|
|
force = mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo);
|
|
} else {
|
|
force = mCaches.unbindMeshBuffer();
|
|
}
|
|
|
|
mCaches.bindPositionVertexPointer(force, vertices);
|
|
if (mCaches.currentProgram->texCoords >= 0) {
|
|
mCaches.bindTexCoordsVertexPointer(force, texCoords);
|
|
}
|
|
|
|
mCaches.unbindIndicesBuffer();
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawMesh(const GLvoid* vertices,
|
|
const GLvoid* texCoords, const GLvoid* colors) {
|
|
bool force = mCaches.unbindMeshBuffer();
|
|
GLsizei stride = sizeof(ColorTextureVertex);
|
|
|
|
mCaches.bindPositionVertexPointer(force, vertices, stride);
|
|
if (mCaches.currentProgram->texCoords >= 0) {
|
|
mCaches.bindTexCoordsVertexPointer(force, texCoords, stride);
|
|
}
|
|
int slot = mCaches.currentProgram->getAttrib("colors");
|
|
if (slot >= 0) {
|
|
glEnableVertexAttribArray(slot);
|
|
glVertexAttribPointer(slot, 4, GL_FLOAT, GL_FALSE, stride, colors);
|
|
}
|
|
|
|
mCaches.unbindIndicesBuffer();
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawMeshIndices(const GLvoid* vertices,
|
|
const GLvoid* texCoords, GLuint vbo) {
|
|
bool force = false;
|
|
// If vbo is != 0 we want to treat the vertices parameter as an offset inside
|
|
// a VBO. However, if vertices is set to NULL and vbo == 0 then we want to
|
|
// use the default VBO found in Caches
|
|
if (!vertices || vbo) {
|
|
force = mCaches.bindMeshBuffer(vbo == 0 ? mCaches.meshBuffer : vbo);
|
|
} else {
|
|
force = mCaches.unbindMeshBuffer();
|
|
}
|
|
mCaches.bindQuadIndicesBuffer();
|
|
|
|
mCaches.bindPositionVertexPointer(force, vertices);
|
|
if (mCaches.currentProgram->texCoords >= 0) {
|
|
mCaches.bindTexCoordsVertexPointer(force, texCoords);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::setupDrawIndexedVertices(GLvoid* vertices) {
|
|
bool force = mCaches.unbindMeshBuffer();
|
|
mCaches.bindQuadIndicesBuffer();
|
|
mCaches.bindPositionVertexPointer(force, vertices, gVertexStride);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Drawing
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
status_t OpenGLRenderer::drawRenderNode(RenderNode* renderNode, Rect& dirty, int32_t replayFlags) {
|
|
status_t status;
|
|
// All the usual checks and setup operations (quickReject, setupDraw, etc.)
|
|
// will be performed by the display list itself
|
|
if (renderNode && renderNode->isRenderable()) {
|
|
// compute 3d ordering
|
|
renderNode->computeOrdering();
|
|
if (CC_UNLIKELY(mCaches.drawDeferDisabled)) {
|
|
status = startFrame();
|
|
ReplayStateStruct replayStruct(*this, dirty, replayFlags);
|
|
renderNode->replay(replayStruct, 0);
|
|
return status | replayStruct.mDrawGlStatus;
|
|
}
|
|
|
|
bool avoidOverdraw = !mCaches.debugOverdraw && !mCountOverdraw; // shh, don't tell devs!
|
|
DeferredDisplayList deferredList(*currentClipRect(), avoidOverdraw);
|
|
DeferStateStruct deferStruct(deferredList, *this, replayFlags);
|
|
renderNode->defer(deferStruct, 0);
|
|
|
|
flushLayers();
|
|
status = startFrame();
|
|
|
|
return deferredList.flush(*this, dirty) | status;
|
|
}
|
|
|
|
// Even if there is no drawing command(Ex: invisible),
|
|
// it still needs startFrame to clear buffer and start tiling.
|
|
return startFrame();
|
|
}
|
|
|
|
void OpenGLRenderer::drawAlphaBitmap(Texture* texture, float left, float top, const SkPaint* paint) {
|
|
int color = paint != NULL ? paint->getColor() : 0;
|
|
|
|
float x = left;
|
|
float y = top;
|
|
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
|
|
bool ignoreTransform = false;
|
|
if (currentTransform()->isPureTranslate()) {
|
|
x = (int) floorf(left + currentTransform()->getTranslateX() + 0.5f);
|
|
y = (int) floorf(top + currentTransform()->getTranslateY() + 0.5f);
|
|
ignoreTransform = true;
|
|
|
|
texture->setFilter(GL_NEAREST, true);
|
|
} else {
|
|
texture->setFilter(getFilter(paint), true);
|
|
}
|
|
|
|
// No need to check for a UV mapper on the texture object, only ARGB_8888
|
|
// bitmaps get packed in the atlas
|
|
drawAlpha8TextureMesh(x, y, x + texture->width, y + texture->height, texture->id,
|
|
paint, (GLvoid*) NULL, (GLvoid*) gMeshTextureOffset,
|
|
GL_TRIANGLE_STRIP, gMeshCount, ignoreTransform);
|
|
}
|
|
|
|
/**
|
|
* Important note: this method is intended to draw batches of bitmaps and
|
|
* will not set the scissor enable or dirty the current layer, if any.
|
|
* The caller is responsible for properly dirtying the current layer.
|
|
*/
|
|
status_t OpenGLRenderer::drawBitmaps(const SkBitmap* bitmap, AssetAtlas::Entry* entry,
|
|
int bitmapCount, TextureVertex* vertices, bool pureTranslate,
|
|
const Rect& bounds, const SkPaint* paint) {
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = entry ? entry->texture : mCaches.textureCache.get(bitmap);
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
texture->setFilter(pureTranslate ? GL_NEAREST : getFilter(paint), true);
|
|
|
|
const float x = (int) floorf(bounds.left + 0.5f);
|
|
const float y = (int) floorf(bounds.top + 0.5f);
|
|
if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) {
|
|
drawAlpha8TextureMesh(x, y, x + bounds.getWidth(), y + bounds.getHeight(),
|
|
texture->id, paint, &vertices[0].x, &vertices[0].u,
|
|
GL_TRIANGLES, bitmapCount * 6, true,
|
|
kModelViewMode_Translate, false);
|
|
} else {
|
|
drawTextureMesh(x, y, x + bounds.getWidth(), y + bounds.getHeight(),
|
|
texture->id, paint, texture->blend, &vertices[0].x, &vertices[0].u,
|
|
GL_TRIANGLES, bitmapCount * 6, false, true, 0,
|
|
kModelViewMode_Translate, false);
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawBitmap(const SkBitmap* bitmap, const SkPaint* paint) {
|
|
if (quickRejectSetupScissor(0, 0, bitmap->width(), bitmap->height())) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = getTexture(bitmap);
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) {
|
|
drawAlphaBitmap(texture, 0, 0, paint);
|
|
} else {
|
|
drawTextureRect(0, 0, bitmap->width(), bitmap->height(), texture, paint);
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawBitmapData(const SkBitmap* bitmap, const SkPaint* paint) {
|
|
if (quickRejectSetupScissor(0, 0, bitmap->width(), bitmap->height())) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = mCaches.textureCache.getTransient(bitmap);
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) {
|
|
drawAlphaBitmap(texture, 0, 0, paint);
|
|
} else {
|
|
drawTextureRect(0, 0, bitmap->width(), bitmap->height(), texture, paint);
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawBitmapMesh(const SkBitmap* bitmap, int meshWidth, int meshHeight,
|
|
const float* vertices, const int* colors, const SkPaint* paint) {
|
|
if (!vertices || currentSnapshot()->isIgnored()) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
// TODO: use quickReject on bounds from vertices
|
|
mCaches.enableScissor();
|
|
|
|
float left = FLT_MAX;
|
|
float top = FLT_MAX;
|
|
float right = FLT_MIN;
|
|
float bottom = FLT_MIN;
|
|
|
|
const uint32_t count = meshWidth * meshHeight * 6;
|
|
|
|
Vector<ColorTextureVertex> mesh; // TODO: use C++11 unique_ptr
|
|
mesh.setCapacity(count);
|
|
ColorTextureVertex* vertex = mesh.editArray();
|
|
|
|
bool cleanupColors = false;
|
|
if (!colors) {
|
|
uint32_t colorsCount = (meshWidth + 1) * (meshHeight + 1);
|
|
int* newColors = new int[colorsCount];
|
|
memset(newColors, 0xff, colorsCount * sizeof(int));
|
|
colors = newColors;
|
|
cleanupColors = true;
|
|
}
|
|
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = mCaches.assetAtlas.getEntryTexture(bitmap);
|
|
const UvMapper& mapper(getMapper(texture));
|
|
|
|
for (int32_t y = 0; y < meshHeight; y++) {
|
|
for (int32_t x = 0; x < meshWidth; x++) {
|
|
uint32_t i = (y * (meshWidth + 1) + x) * 2;
|
|
|
|
float u1 = float(x) / meshWidth;
|
|
float u2 = float(x + 1) / meshWidth;
|
|
float v1 = float(y) / meshHeight;
|
|
float v2 = float(y + 1) / meshHeight;
|
|
|
|
mapper.map(u1, v1, u2, v2);
|
|
|
|
int ax = i + (meshWidth + 1) * 2;
|
|
int ay = ax + 1;
|
|
int bx = i;
|
|
int by = bx + 1;
|
|
int cx = i + 2;
|
|
int cy = cx + 1;
|
|
int dx = i + (meshWidth + 1) * 2 + 2;
|
|
int dy = dx + 1;
|
|
|
|
ColorTextureVertex::set(vertex++, vertices[dx], vertices[dy], u2, v2, colors[dx / 2]);
|
|
ColorTextureVertex::set(vertex++, vertices[ax], vertices[ay], u1, v2, colors[ax / 2]);
|
|
ColorTextureVertex::set(vertex++, vertices[bx], vertices[by], u1, v1, colors[bx / 2]);
|
|
|
|
ColorTextureVertex::set(vertex++, vertices[dx], vertices[dy], u2, v2, colors[dx / 2]);
|
|
ColorTextureVertex::set(vertex++, vertices[bx], vertices[by], u1, v1, colors[bx / 2]);
|
|
ColorTextureVertex::set(vertex++, vertices[cx], vertices[cy], u2, v1, colors[cx / 2]);
|
|
|
|
left = fminf(left, fminf(vertices[ax], fminf(vertices[bx], vertices[cx])));
|
|
top = fminf(top, fminf(vertices[ay], fminf(vertices[by], vertices[cy])));
|
|
right = fmaxf(right, fmaxf(vertices[ax], fmaxf(vertices[bx], vertices[cx])));
|
|
bottom = fmaxf(bottom, fmaxf(vertices[ay], fmaxf(vertices[by], vertices[cy])));
|
|
}
|
|
}
|
|
|
|
if (quickRejectSetupScissor(left, top, right, bottom)) {
|
|
if (cleanupColors) delete[] colors;
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
if (!texture) {
|
|
texture = mCaches.textureCache.get(bitmap);
|
|
if (!texture) {
|
|
if (cleanupColors) delete[] colors;
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
}
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
texture->setFilter(getFilter(paint), true);
|
|
|
|
int alpha;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &alpha, &mode);
|
|
|
|
float a = alpha / 255.0f;
|
|
|
|
if (hasLayer()) {
|
|
dirtyLayer(left, top, right, bottom, *currentTransform());
|
|
}
|
|
|
|
setupDraw();
|
|
setupDrawWithTextureAndColor();
|
|
setupDrawColor(a, a, a, a);
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawBlending(paint, true);
|
|
setupDrawProgram();
|
|
setupDrawDirtyRegionsDisabled();
|
|
setupDrawModelView(kModelViewMode_TranslateAndScale, false, 0.0f, 0.0f, 1.0f, 1.0f);
|
|
setupDrawTexture(texture->id);
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawMesh(&mesh[0].x, &mesh[0].u, &mesh[0].r);
|
|
|
|
glDrawArrays(GL_TRIANGLES, 0, count);
|
|
|
|
int slot = mCaches.currentProgram->getAttrib("colors");
|
|
if (slot >= 0) {
|
|
glDisableVertexAttribArray(slot);
|
|
}
|
|
|
|
if (cleanupColors) delete[] colors;
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawBitmap(const SkBitmap* bitmap,
|
|
float srcLeft, float srcTop, float srcRight, float srcBottom,
|
|
float dstLeft, float dstTop, float dstRight, float dstBottom,
|
|
const SkPaint* paint) {
|
|
if (quickRejectSetupScissor(dstLeft, dstTop, dstRight, dstBottom)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = getTexture(bitmap);
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
const float width = texture->width;
|
|
const float height = texture->height;
|
|
|
|
float u1 = fmax(0.0f, srcLeft / width);
|
|
float v1 = fmax(0.0f, srcTop / height);
|
|
float u2 = fmin(1.0f, srcRight / width);
|
|
float v2 = fmin(1.0f, srcBottom / height);
|
|
|
|
getMapper(texture).map(u1, v1, u2, v2);
|
|
|
|
mCaches.unbindMeshBuffer();
|
|
resetDrawTextureTexCoords(u1, v1, u2, v2);
|
|
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
|
|
float scaleX = (dstRight - dstLeft) / (srcRight - srcLeft);
|
|
float scaleY = (dstBottom - dstTop) / (srcBottom - srcTop);
|
|
|
|
bool scaled = scaleX != 1.0f || scaleY != 1.0f;
|
|
// Apply a scale transform on the canvas only when a shader is in use
|
|
// Skia handles the ratio between the dst and src rects as a scale factor
|
|
// when a shader is set
|
|
bool useScaleTransform = getShader(paint) && scaled;
|
|
bool ignoreTransform = false;
|
|
|
|
if (CC_LIKELY(currentTransform()->isPureTranslate() && !useScaleTransform)) {
|
|
float x = (int) floorf(dstLeft + currentTransform()->getTranslateX() + 0.5f);
|
|
float y = (int) floorf(dstTop + currentTransform()->getTranslateY() + 0.5f);
|
|
|
|
dstRight = x + (dstRight - dstLeft);
|
|
dstBottom = y + (dstBottom - dstTop);
|
|
|
|
dstLeft = x;
|
|
dstTop = y;
|
|
|
|
texture->setFilter(scaled ? getFilter(paint) : GL_NEAREST, true);
|
|
ignoreTransform = true;
|
|
} else {
|
|
texture->setFilter(getFilter(paint), true);
|
|
}
|
|
|
|
if (CC_UNLIKELY(useScaleTransform)) {
|
|
save(SkCanvas::kMatrix_SaveFlag);
|
|
translate(dstLeft, dstTop);
|
|
scale(scaleX, scaleY);
|
|
|
|
dstLeft = 0.0f;
|
|
dstTop = 0.0f;
|
|
|
|
dstRight = srcRight - srcLeft;
|
|
dstBottom = srcBottom - srcTop;
|
|
}
|
|
|
|
if (CC_UNLIKELY(bitmap->colorType() == kAlpha_8_SkColorType)) {
|
|
drawAlpha8TextureMesh(dstLeft, dstTop, dstRight, dstBottom,
|
|
texture->id, paint,
|
|
&mMeshVertices[0].x, &mMeshVertices[0].u,
|
|
GL_TRIANGLE_STRIP, gMeshCount, ignoreTransform);
|
|
} else {
|
|
drawTextureMesh(dstLeft, dstTop, dstRight, dstBottom,
|
|
texture->id, paint, texture->blend,
|
|
&mMeshVertices[0].x, &mMeshVertices[0].u,
|
|
GL_TRIANGLE_STRIP, gMeshCount, false, ignoreTransform);
|
|
}
|
|
|
|
if (CC_UNLIKELY(useScaleTransform)) {
|
|
restore();
|
|
}
|
|
|
|
resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawPatch(const SkBitmap* bitmap, const Res_png_9patch* patch,
|
|
float left, float top, float right, float bottom, const SkPaint* paint) {
|
|
if (quickRejectSetupScissor(left, top, right, bottom)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
AssetAtlas::Entry* entry = mCaches.assetAtlas.getEntry(bitmap);
|
|
const Patch* mesh = mCaches.patchCache.get(entry, bitmap->width(), bitmap->height(),
|
|
right - left, bottom - top, patch);
|
|
|
|
return drawPatch(bitmap, mesh, entry, left, top, right, bottom, paint);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawPatch(const SkBitmap* bitmap, const Patch* mesh,
|
|
AssetAtlas::Entry* entry, float left, float top, float right, float bottom,
|
|
const SkPaint* paint) {
|
|
if (quickRejectSetupScissor(left, top, right, bottom)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
if (CC_LIKELY(mesh && mesh->verticesCount > 0)) {
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = entry ? entry->texture : mCaches.textureCache.get(bitmap);
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
texture->setFilter(GL_LINEAR, true);
|
|
|
|
const bool pureTranslate = currentTransform()->isPureTranslate();
|
|
// Mark the current layer dirty where we are going to draw the patch
|
|
if (hasLayer() && mesh->hasEmptyQuads) {
|
|
const float offsetX = left + currentTransform()->getTranslateX();
|
|
const float offsetY = top + currentTransform()->getTranslateY();
|
|
const size_t count = mesh->quads.size();
|
|
for (size_t i = 0; i < count; i++) {
|
|
const Rect& bounds = mesh->quads.itemAt(i);
|
|
if (CC_LIKELY(pureTranslate)) {
|
|
const float x = (int) floorf(bounds.left + offsetX + 0.5f);
|
|
const float y = (int) floorf(bounds.top + offsetY + 0.5f);
|
|
dirtyLayer(x, y, x + bounds.getWidth(), y + bounds.getHeight());
|
|
} else {
|
|
dirtyLayer(left + bounds.left, top + bounds.top,
|
|
left + bounds.right, top + bounds.bottom, *currentTransform());
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ignoreTransform = false;
|
|
if (CC_LIKELY(pureTranslate)) {
|
|
const float x = (int) floorf(left + currentTransform()->getTranslateX() + 0.5f);
|
|
const float y = (int) floorf(top + currentTransform()->getTranslateY() + 0.5f);
|
|
|
|
right = x + right - left;
|
|
bottom = y + bottom - top;
|
|
left = x;
|
|
top = y;
|
|
ignoreTransform = true;
|
|
}
|
|
drawIndexedTextureMesh(left, top, right, bottom, texture->id, paint,
|
|
texture->blend, (GLvoid*) mesh->offset, (GLvoid*) mesh->textureOffset,
|
|
GL_TRIANGLES, mesh->indexCount, false, ignoreTransform,
|
|
mCaches.patchCache.getMeshBuffer(), kModelViewMode_Translate, !mesh->hasEmptyQuads);
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
/**
|
|
* Important note: this method is intended to draw batches of 9-patch objects and
|
|
* will not set the scissor enable or dirty the current layer, if any.
|
|
* The caller is responsible for properly dirtying the current layer.
|
|
*/
|
|
status_t OpenGLRenderer::drawPatches(const SkBitmap* bitmap, AssetAtlas::Entry* entry,
|
|
TextureVertex* vertices, uint32_t indexCount, const SkPaint* paint) {
|
|
mCaches.activeTexture(0);
|
|
Texture* texture = entry ? entry->texture : mCaches.textureCache.get(bitmap);
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
texture->setFilter(GL_LINEAR, true);
|
|
|
|
drawIndexedTextureMesh(0.0f, 0.0f, 1.0f, 1.0f, texture->id, paint,
|
|
texture->blend, &vertices[0].x, &vertices[0].u,
|
|
GL_TRIANGLES, indexCount, false, true, 0, kModelViewMode_Translate, false);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawVertexBuffer(float translateX, float translateY,
|
|
const VertexBuffer& vertexBuffer, const SkPaint* paint, int displayFlags) {
|
|
// not missing call to quickReject/dirtyLayer, always done at a higher level
|
|
if (!vertexBuffer.getVertexCount()) {
|
|
// no vertices to draw
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
Rect bounds(vertexBuffer.getBounds());
|
|
bounds.translate(translateX, translateY);
|
|
dirtyLayer(bounds.left, bounds.top, bounds.right, bounds.bottom, *currentTransform());
|
|
|
|
int color = paint->getColor();
|
|
bool isAA = paint->isAntiAlias();
|
|
|
|
setupDraw();
|
|
setupDrawNoTexture();
|
|
if (isAA) setupDrawVertexAlpha((displayFlags & kVertexBuffer_ShadowInterp));
|
|
setupDrawColor(color, ((color >> 24) & 0xFF) * mSnapshot->alpha);
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawShader(getShader(paint));
|
|
setupDrawBlending(paint, isAA);
|
|
setupDrawProgram();
|
|
setupDrawModelView(kModelViewMode_Translate, (displayFlags & kVertexBuffer_Offset),
|
|
translateX, translateY, 0, 0);
|
|
setupDrawColorUniforms(getShader(paint));
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawShaderUniforms(getShader(paint));
|
|
|
|
const void* vertices = vertexBuffer.getBuffer();
|
|
bool force = mCaches.unbindMeshBuffer();
|
|
mCaches.bindPositionVertexPointer(true, vertices, isAA ? gAlphaVertexStride : gVertexStride);
|
|
mCaches.resetTexCoordsVertexPointer();
|
|
|
|
int alphaSlot = -1;
|
|
if (isAA) {
|
|
void* alphaCoords = ((GLbyte*) vertices) + gVertexAlphaOffset;
|
|
alphaSlot = mCaches.currentProgram->getAttrib("vtxAlpha");
|
|
// TODO: avoid enable/disable in back to back uses of the alpha attribute
|
|
glEnableVertexAttribArray(alphaSlot);
|
|
glVertexAttribPointer(alphaSlot, 1, GL_FLOAT, GL_FALSE, gAlphaVertexStride, alphaCoords);
|
|
}
|
|
|
|
const VertexBuffer::Mode mode = vertexBuffer.getMode();
|
|
if (mode == VertexBuffer::kStandard) {
|
|
mCaches.unbindIndicesBuffer();
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, vertexBuffer.getVertexCount());
|
|
} else if (mode == VertexBuffer::kOnePolyRingShadow) {
|
|
mCaches.bindShadowIndicesBuffer();
|
|
glDrawElements(GL_TRIANGLE_STRIP, ONE_POLY_RING_SHADOW_INDEX_COUNT, GL_UNSIGNED_SHORT, 0);
|
|
} else if (mode == VertexBuffer::kTwoPolyRingShadow) {
|
|
mCaches.bindShadowIndicesBuffer();
|
|
glDrawElements(GL_TRIANGLE_STRIP, TWO_POLY_RING_SHADOW_INDEX_COUNT, GL_UNSIGNED_SHORT, 0);
|
|
} else if (mode == VertexBuffer::kIndices) {
|
|
mCaches.unbindIndicesBuffer();
|
|
glDrawElements(GL_TRIANGLE_STRIP, vertexBuffer.getIndexCount(), GL_UNSIGNED_SHORT,
|
|
vertexBuffer.getIndices());
|
|
}
|
|
|
|
if (isAA) {
|
|
glDisableVertexAttribArray(alphaSlot);
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
/**
|
|
* Renders a convex path via tessellation. For AA paths, this function uses a similar approach to
|
|
* that of AA lines in the drawLines() function. We expand the convex path by a half pixel in
|
|
* screen space in all directions. However, instead of using a fragment shader to compute the
|
|
* translucency of the color from its position, we simply use a varying parameter to define how far
|
|
* a given pixel is from the edge. For non-AA paths, the expansion and alpha varying are not used.
|
|
*
|
|
* Doesn't yet support joins, caps, or path effects.
|
|
*/
|
|
status_t OpenGLRenderer::drawConvexPath(const SkPath& path, const SkPaint* paint) {
|
|
VertexBuffer vertexBuffer;
|
|
// TODO: try clipping large paths to viewport
|
|
PathTessellator::tessellatePath(path, paint, *currentTransform(), vertexBuffer);
|
|
return drawVertexBuffer(vertexBuffer, paint);
|
|
}
|
|
|
|
/**
|
|
* We create tristrips for the lines much like shape stroke tessellation, using a per-vertex alpha
|
|
* and additional geometry for defining an alpha slope perimeter.
|
|
*
|
|
* Using GL_LINES can be difficult because the rasterization rules for those lines produces some
|
|
* unexpected results, and may vary between hardware devices. Previously we used a varying-base
|
|
* in-shader alpha region, but found it to be taxing on some GPUs.
|
|
*
|
|
* TODO: try using a fixed input buffer for non-capped lines as in text rendering. this may reduce
|
|
* memory transfer by removing need for degenerate vertices.
|
|
*/
|
|
status_t OpenGLRenderer::drawLines(const float* points, int count, const SkPaint* paint) {
|
|
if (currentSnapshot()->isIgnored() || count < 4) return DrawGlInfo::kStatusDone;
|
|
|
|
count &= ~0x3; // round down to nearest four
|
|
|
|
VertexBuffer buffer;
|
|
PathTessellator::tessellateLines(points, count, paint, *currentTransform(), buffer);
|
|
const Rect& bounds = buffer.getBounds();
|
|
|
|
if (quickRejectSetupScissor(bounds.left, bounds.top, bounds.right, bounds.bottom)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
int displayFlags = paint->isAntiAlias() ? 0 : kVertexBuffer_Offset;
|
|
return drawVertexBuffer(buffer, paint, displayFlags);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawPoints(const float* points, int count, const SkPaint* paint) {
|
|
if (currentSnapshot()->isIgnored() || count < 2) return DrawGlInfo::kStatusDone;
|
|
|
|
count &= ~0x1; // round down to nearest two
|
|
|
|
VertexBuffer buffer;
|
|
PathTessellator::tessellatePoints(points, count, paint, *currentTransform(), buffer);
|
|
|
|
const Rect& bounds = buffer.getBounds();
|
|
if (quickRejectSetupScissor(bounds.left, bounds.top, bounds.right, bounds.bottom)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
int displayFlags = paint->isAntiAlias() ? 0 : kVertexBuffer_Offset;
|
|
return drawVertexBuffer(buffer, paint, displayFlags);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) {
|
|
// No need to check against the clip, we fill the clip region
|
|
if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone;
|
|
|
|
Rect clip(*currentClipRect());
|
|
clip.snapToPixelBoundaries();
|
|
|
|
SkPaint paint;
|
|
paint.setColor(color);
|
|
paint.setXfermodeMode(mode);
|
|
|
|
drawColorRect(clip.left, clip.top, clip.right, clip.bottom, &paint, true);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawShape(float left, float top, const PathTexture* texture,
|
|
const SkPaint* paint) {
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
const float x = left + texture->left - texture->offset;
|
|
const float y = top + texture->top - texture->offset;
|
|
|
|
drawPathTexture(texture, x, y, paint);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawRoundRect(float left, float top, float right, float bottom,
|
|
float rx, float ry, const SkPaint* p) {
|
|
if (currentSnapshot()->isIgnored()
|
|
|| quickRejectSetupScissor(left, top, right, bottom, p)
|
|
|| paintWillNotDraw(*p)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
if (p->getPathEffect() != 0) {
|
|
mCaches.activeTexture(0);
|
|
const PathTexture* texture = mCaches.pathCache.getRoundRect(
|
|
right - left, bottom - top, rx, ry, p);
|
|
return drawShape(left, top, texture, p);
|
|
}
|
|
|
|
const VertexBuffer* vertexBuffer = mCaches.tessellationCache.getRoundRect(
|
|
*currentTransform(), *p, right - left, bottom - top, rx, ry);
|
|
return drawVertexBuffer(left, top, *vertexBuffer, p);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawCircle(float x, float y, float radius, const SkPaint* p) {
|
|
if (currentSnapshot()->isIgnored()
|
|
|| quickRejectSetupScissor(x - radius, y - radius, x + radius, y + radius, p)
|
|
|| paintWillNotDraw(*p)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
if (p->getPathEffect() != 0) {
|
|
mCaches.activeTexture(0);
|
|
const PathTexture* texture = mCaches.pathCache.getCircle(radius, p);
|
|
return drawShape(x - radius, y - radius, texture, p);
|
|
}
|
|
|
|
SkPath path;
|
|
if (p->getStyle() == SkPaint::kStrokeAndFill_Style) {
|
|
path.addCircle(x, y, radius + p->getStrokeWidth() / 2);
|
|
} else {
|
|
path.addCircle(x, y, radius);
|
|
}
|
|
return drawConvexPath(path, p);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawOval(float left, float top, float right, float bottom,
|
|
const SkPaint* p) {
|
|
if (currentSnapshot()->isIgnored()
|
|
|| quickRejectSetupScissor(left, top, right, bottom, p)
|
|
|| paintWillNotDraw(*p)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
if (p->getPathEffect() != 0) {
|
|
mCaches.activeTexture(0);
|
|
const PathTexture* texture = mCaches.pathCache.getOval(right - left, bottom - top, p);
|
|
return drawShape(left, top, texture, p);
|
|
}
|
|
|
|
SkPath path;
|
|
SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
|
|
if (p->getStyle() == SkPaint::kStrokeAndFill_Style) {
|
|
rect.outset(p->getStrokeWidth() / 2, p->getStrokeWidth() / 2);
|
|
}
|
|
path.addOval(rect);
|
|
return drawConvexPath(path, p);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawArc(float left, float top, float right, float bottom,
|
|
float startAngle, float sweepAngle, bool useCenter, const SkPaint* p) {
|
|
if (currentSnapshot()->isIgnored()
|
|
|| quickRejectSetupScissor(left, top, right, bottom, p)
|
|
|| paintWillNotDraw(*p)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
// TODO: support fills (accounting for concavity if useCenter && sweepAngle > 180)
|
|
if (p->getStyle() != SkPaint::kStroke_Style || p->getPathEffect() != 0 || useCenter) {
|
|
mCaches.activeTexture(0);
|
|
const PathTexture* texture = mCaches.pathCache.getArc(right - left, bottom - top,
|
|
startAngle, sweepAngle, useCenter, p);
|
|
return drawShape(left, top, texture, p);
|
|
}
|
|
|
|
SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
|
|
if (p->getStyle() == SkPaint::kStrokeAndFill_Style) {
|
|
rect.outset(p->getStrokeWidth() / 2, p->getStrokeWidth() / 2);
|
|
}
|
|
|
|
SkPath path;
|
|
if (useCenter) {
|
|
path.moveTo(rect.centerX(), rect.centerY());
|
|
}
|
|
path.arcTo(rect, startAngle, sweepAngle, !useCenter);
|
|
if (useCenter) {
|
|
path.close();
|
|
}
|
|
return drawConvexPath(path, p);
|
|
}
|
|
|
|
// See SkPaintDefaults.h
|
|
#define SkPaintDefaults_MiterLimit SkIntToScalar(4)
|
|
|
|
status_t OpenGLRenderer::drawRect(float left, float top, float right, float bottom,
|
|
const SkPaint* p) {
|
|
if (currentSnapshot()->isIgnored()
|
|
|| quickRejectSetupScissor(left, top, right, bottom, p)
|
|
|| paintWillNotDraw(*p)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
if (p->getStyle() != SkPaint::kFill_Style) {
|
|
// only fill style is supported by drawConvexPath, since others have to handle joins
|
|
if (p->getPathEffect() != 0 || p->getStrokeJoin() != SkPaint::kMiter_Join ||
|
|
p->getStrokeMiter() != SkPaintDefaults_MiterLimit) {
|
|
mCaches.activeTexture(0);
|
|
const PathTexture* texture =
|
|
mCaches.pathCache.getRect(right - left, bottom - top, p);
|
|
return drawShape(left, top, texture, p);
|
|
}
|
|
|
|
SkPath path;
|
|
SkRect rect = SkRect::MakeLTRB(left, top, right, bottom);
|
|
if (p->getStyle() == SkPaint::kStrokeAndFill_Style) {
|
|
rect.outset(p->getStrokeWidth() / 2, p->getStrokeWidth() / 2);
|
|
}
|
|
path.addRect(rect);
|
|
return drawConvexPath(path, p);
|
|
}
|
|
|
|
if (p->isAntiAlias() && !currentTransform()->isSimple()) {
|
|
SkPath path;
|
|
path.addRect(left, top, right, bottom);
|
|
return drawConvexPath(path, p);
|
|
} else {
|
|
drawColorRect(left, top, right, bottom, p);
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::drawTextShadow(const SkPaint* paint, const char* text,
|
|
int bytesCount, int count, const float* positions,
|
|
FontRenderer& fontRenderer, int alpha, float x, float y) {
|
|
mCaches.activeTexture(0);
|
|
|
|
TextShadow textShadow;
|
|
if (!getTextShadow(paint, &textShadow)) {
|
|
LOG_ALWAYS_FATAL("failed to query shadow attributes");
|
|
}
|
|
|
|
// NOTE: The drop shadow will not perform gamma correction
|
|
// if shader-based correction is enabled
|
|
mCaches.dropShadowCache.setFontRenderer(fontRenderer);
|
|
const ShadowTexture* shadow = mCaches.dropShadowCache.get(
|
|
paint, text, bytesCount, count, textShadow.radius, positions);
|
|
// If the drop shadow exceeds the max texture size or couldn't be
|
|
// allocated, skip drawing
|
|
if (!shadow) return;
|
|
const AutoTexture autoCleanup(shadow);
|
|
|
|
const float sx = x - shadow->left + textShadow.dx;
|
|
const float sy = y - shadow->top + textShadow.dy;
|
|
|
|
const int shadowAlpha = ((textShadow.color >> 24) & 0xFF) * mSnapshot->alpha;
|
|
if (getShader(paint)) {
|
|
textShadow.color = SK_ColorWHITE;
|
|
}
|
|
|
|
setupDraw();
|
|
setupDrawWithTexture(true);
|
|
setupDrawAlpha8Color(textShadow.color, shadowAlpha < 255 ? shadowAlpha : alpha);
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawShader(getShader(paint));
|
|
setupDrawBlending(paint, true);
|
|
setupDrawProgram();
|
|
setupDrawModelView(kModelViewMode_TranslateAndScale, false,
|
|
sx, sy, sx + shadow->width, sy + shadow->height);
|
|
setupDrawTexture(shadow->id);
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawShaderUniforms(getShader(paint));
|
|
setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset);
|
|
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount);
|
|
}
|
|
|
|
bool OpenGLRenderer::canSkipText(const SkPaint* paint) const {
|
|
float alpha = (hasTextShadow(paint) ? 1.0f : paint->getAlpha()) * mSnapshot->alpha;
|
|
return alpha == 0.0f && getXfermode(paint->getXfermode()) == SkXfermode::kSrcOver_Mode;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawPosText(const char* text, int bytesCount, int count,
|
|
const float* positions, const SkPaint* paint) {
|
|
if (text == NULL || count == 0 || currentSnapshot()->isIgnored() || canSkipText(paint)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
// NOTE: Skia does not support perspective transform on drawPosText yet
|
|
if (!currentTransform()->isSimple()) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
mCaches.enableScissor();
|
|
|
|
float x = 0.0f;
|
|
float y = 0.0f;
|
|
const bool pureTranslate = currentTransform()->isPureTranslate();
|
|
if (pureTranslate) {
|
|
x = (int) floorf(x + currentTransform()->getTranslateX() + 0.5f);
|
|
y = (int) floorf(y + currentTransform()->getTranslateY() + 0.5f);
|
|
}
|
|
|
|
FontRenderer& fontRenderer = mCaches.fontRenderer->getFontRenderer(paint);
|
|
fontRenderer.setFont(paint, SkMatrix::I());
|
|
|
|
int alpha;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &alpha, &mode);
|
|
|
|
if (CC_UNLIKELY(hasTextShadow(paint))) {
|
|
drawTextShadow(paint, text, bytesCount, count, positions, fontRenderer,
|
|
alpha, 0.0f, 0.0f);
|
|
}
|
|
|
|
// Pick the appropriate texture filtering
|
|
bool linearFilter = currentTransform()->changesBounds();
|
|
if (pureTranslate && !linearFilter) {
|
|
linearFilter = fabs(y - (int) y) > 0.0f || fabs(x - (int) x) > 0.0f;
|
|
}
|
|
fontRenderer.setTextureFiltering(linearFilter);
|
|
|
|
const Rect* clip = pureTranslate ? mSnapshot->clipRect : &mSnapshot->getLocalClip();
|
|
Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f);
|
|
|
|
const bool hasActiveLayer = hasLayer();
|
|
|
|
TextSetupFunctor functor(this, x, y, pureTranslate, alpha, mode, paint);
|
|
if (fontRenderer.renderPosText(paint, clip, text, 0, bytesCount, count, x, y,
|
|
positions, hasActiveLayer ? &bounds : NULL, &functor)) {
|
|
if (hasActiveLayer) {
|
|
if (!pureTranslate) {
|
|
currentTransform()->mapRect(bounds);
|
|
}
|
|
dirtyLayerUnchecked(bounds, getRegion());
|
|
}
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
bool OpenGLRenderer::findBestFontTransform(const mat4& transform, SkMatrix* outMatrix) const {
|
|
if (CC_LIKELY(transform.isPureTranslate())) {
|
|
outMatrix->setIdentity();
|
|
return false;
|
|
} else if (CC_UNLIKELY(transform.isPerspective())) {
|
|
outMatrix->setIdentity();
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Input is a non-perspective, scaling transform. Generate a scale-only transform,
|
|
* with values rounded to the nearest int.
|
|
*/
|
|
float sx, sy;
|
|
transform.decomposeScale(sx, sy);
|
|
outMatrix->setScale(
|
|
roundf(fmaxf(1.0f, sx)),
|
|
roundf(fmaxf(1.0f, sy)));
|
|
return true;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawText(const char* text, int bytesCount, int count, float x, float y,
|
|
const float* positions, const SkPaint* paint, float totalAdvance, const Rect& bounds,
|
|
DrawOpMode drawOpMode) {
|
|
|
|
if (drawOpMode == kDrawOpMode_Immediate) {
|
|
// The checks for corner-case ignorable text and quick rejection is only done for immediate
|
|
// drawing as ops from DeferredDisplayList are already filtered for these
|
|
if (text == NULL || count == 0 || currentSnapshot()->isIgnored() || canSkipText(paint) ||
|
|
quickRejectSetupScissor(bounds)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
}
|
|
|
|
const float oldX = x;
|
|
const float oldY = y;
|
|
|
|
const mat4& transform = *currentTransform();
|
|
const bool pureTranslate = transform.isPureTranslate();
|
|
|
|
if (CC_LIKELY(pureTranslate)) {
|
|
x = (int) floorf(x + transform.getTranslateX() + 0.5f);
|
|
y = (int) floorf(y + transform.getTranslateY() + 0.5f);
|
|
}
|
|
|
|
int alpha;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &alpha, &mode);
|
|
|
|
FontRenderer& fontRenderer = mCaches.fontRenderer->getFontRenderer(paint);
|
|
|
|
if (CC_UNLIKELY(hasTextShadow(paint))) {
|
|
fontRenderer.setFont(paint, SkMatrix::I());
|
|
drawTextShadow(paint, text, bytesCount, count, positions, fontRenderer,
|
|
alpha, oldX, oldY);
|
|
}
|
|
|
|
const bool hasActiveLayer = hasLayer();
|
|
|
|
// We only pass a partial transform to the font renderer. That partial
|
|
// matrix defines how glyphs are rasterized. Typically we want glyphs
|
|
// to be rasterized at their final size on screen, which means the partial
|
|
// matrix needs to take the scale factor into account.
|
|
// When a partial matrix is used to transform glyphs during rasterization,
|
|
// the mesh is generated with the inverse transform (in the case of scale,
|
|
// the mesh is generated at 1.0 / scale for instance.) This allows us to
|
|
// apply the full transform matrix at draw time in the vertex shader.
|
|
// Applying the full matrix in the shader is the easiest way to handle
|
|
// rotation and perspective and allows us to always generated quads in the
|
|
// font renderer which greatly simplifies the code, clipping in particular.
|
|
SkMatrix fontTransform;
|
|
bool linearFilter = findBestFontTransform(transform, &fontTransform)
|
|
|| fabs(y - (int) y) > 0.0f
|
|
|| fabs(x - (int) x) > 0.0f;
|
|
fontRenderer.setFont(paint, fontTransform);
|
|
fontRenderer.setTextureFiltering(linearFilter);
|
|
|
|
// TODO: Implement better clipping for scaled/rotated text
|
|
const Rect* clip = !pureTranslate ? NULL : currentClipRect();
|
|
Rect layerBounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f);
|
|
|
|
bool status;
|
|
TextSetupFunctor functor(this, x, y, pureTranslate, alpha, mode, paint);
|
|
|
|
// don't call issuedrawcommand, do it at end of batch
|
|
bool forceFinish = (drawOpMode != kDrawOpMode_Defer);
|
|
if (CC_UNLIKELY(paint->getTextAlign() != SkPaint::kLeft_Align)) {
|
|
SkPaint paintCopy(*paint);
|
|
paintCopy.setTextAlign(SkPaint::kLeft_Align);
|
|
status = fontRenderer.renderPosText(&paintCopy, clip, text, 0, bytesCount, count, x, y,
|
|
positions, hasActiveLayer ? &layerBounds : NULL, &functor, forceFinish);
|
|
} else {
|
|
status = fontRenderer.renderPosText(paint, clip, text, 0, bytesCount, count, x, y,
|
|
positions, hasActiveLayer ? &layerBounds : NULL, &functor, forceFinish);
|
|
}
|
|
|
|
if ((status || drawOpMode != kDrawOpMode_Immediate) && hasActiveLayer) {
|
|
if (!pureTranslate) {
|
|
transform.mapRect(layerBounds);
|
|
}
|
|
dirtyLayerUnchecked(layerBounds, getRegion());
|
|
}
|
|
|
|
drawTextDecorations(totalAdvance, oldX, oldY, paint);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawTextOnPath(const char* text, int bytesCount, int count,
|
|
const SkPath* path, float hOffset, float vOffset, const SkPaint* paint) {
|
|
if (text == NULL || count == 0 || currentSnapshot()->isIgnored() || canSkipText(paint)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
// TODO: avoid scissor by calculating maximum bounds using path bounds + font metrics
|
|
mCaches.enableScissor();
|
|
|
|
FontRenderer& fontRenderer = mCaches.fontRenderer->getFontRenderer(paint);
|
|
fontRenderer.setFont(paint, SkMatrix::I());
|
|
fontRenderer.setTextureFiltering(true);
|
|
|
|
int alpha;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &alpha, &mode);
|
|
TextSetupFunctor functor(this, 0.0f, 0.0f, false, alpha, mode, paint);
|
|
|
|
const Rect* clip = &mSnapshot->getLocalClip();
|
|
Rect bounds(FLT_MAX / 2.0f, FLT_MAX / 2.0f, FLT_MIN / 2.0f, FLT_MIN / 2.0f);
|
|
|
|
const bool hasActiveLayer = hasLayer();
|
|
|
|
if (fontRenderer.renderTextOnPath(paint, clip, text, 0, bytesCount, count, path,
|
|
hOffset, vOffset, hasActiveLayer ? &bounds : NULL, &functor)) {
|
|
if (hasActiveLayer) {
|
|
currentTransform()->mapRect(bounds);
|
|
dirtyLayerUnchecked(bounds, getRegion());
|
|
}
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawPath(const SkPath* path, const SkPaint* paint) {
|
|
if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone;
|
|
|
|
mCaches.activeTexture(0);
|
|
|
|
const PathTexture* texture = mCaches.pathCache.get(path, paint);
|
|
if (!texture) return DrawGlInfo::kStatusDone;
|
|
const AutoTexture autoCleanup(texture);
|
|
|
|
const float x = texture->left - texture->offset;
|
|
const float y = texture->top - texture->offset;
|
|
|
|
drawPathTexture(texture, x, y, paint);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawLayer(Layer* layer, float x, float y) {
|
|
if (!layer) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
mat4* transform = NULL;
|
|
if (layer->isTextureLayer()) {
|
|
transform = &layer->getTransform();
|
|
if (!transform->isIdentity()) {
|
|
save(SkCanvas::kMatrix_SaveFlag);
|
|
concatMatrix(*transform);
|
|
}
|
|
}
|
|
|
|
bool clipRequired = false;
|
|
const bool rejected = calculateQuickRejectForScissor(x, y,
|
|
x + layer->layer.getWidth(), y + layer->layer.getHeight(), &clipRequired, NULL, false);
|
|
|
|
if (rejected) {
|
|
if (transform && !transform->isIdentity()) {
|
|
restore();
|
|
}
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
EVENT_LOGD("drawLayer," RECT_STRING ", clipRequired %d", x, y,
|
|
x + layer->layer.getWidth(), y + layer->layer.getHeight(), clipRequired);
|
|
|
|
updateLayer(layer, true);
|
|
|
|
mCaches.setScissorEnabled(mScissorOptimizationDisabled || clipRequired);
|
|
mCaches.activeTexture(0);
|
|
|
|
if (CC_LIKELY(!layer->region.isEmpty())) {
|
|
if (layer->region.isRect()) {
|
|
DRAW_DOUBLE_STENCIL_IF(!layer->hasDrawnSinceUpdate,
|
|
composeLayerRect(layer, layer->regionRect));
|
|
} else if (layer->mesh) {
|
|
|
|
const float a = getLayerAlpha(layer);
|
|
setupDraw();
|
|
setupDrawWithTexture();
|
|
setupDrawColor(a, a, a, a);
|
|
setupDrawColorFilter(layer->getColorFilter());
|
|
setupDrawBlending(layer);
|
|
setupDrawProgram();
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(layer->getColorFilter());
|
|
setupDrawTexture(layer->getTexture());
|
|
if (CC_LIKELY(currentTransform()->isPureTranslate())) {
|
|
int tx = (int) floorf(x + currentTransform()->getTranslateX() + 0.5f);
|
|
int ty = (int) floorf(y + currentTransform()->getTranslateY() + 0.5f);
|
|
|
|
layer->setFilter(GL_NEAREST);
|
|
setupDrawModelView(kModelViewMode_Translate, false, tx, ty,
|
|
tx + layer->layer.getWidth(), ty + layer->layer.getHeight(), true);
|
|
} else {
|
|
layer->setFilter(GL_LINEAR);
|
|
setupDrawModelView(kModelViewMode_Translate, false, x, y,
|
|
x + layer->layer.getWidth(), y + layer->layer.getHeight());
|
|
}
|
|
|
|
TextureVertex* mesh = &layer->mesh[0];
|
|
GLsizei elementsCount = layer->meshElementCount;
|
|
|
|
while (elementsCount > 0) {
|
|
GLsizei drawCount = min(elementsCount, (GLsizei) gMaxNumberOfQuads * 6);
|
|
|
|
setupDrawMeshIndices(&mesh[0].x, &mesh[0].u);
|
|
DRAW_DOUBLE_STENCIL_IF(!layer->hasDrawnSinceUpdate,
|
|
glDrawElements(GL_TRIANGLES, drawCount, GL_UNSIGNED_SHORT, NULL));
|
|
|
|
elementsCount -= drawCount;
|
|
// Though there are 4 vertices in a quad, we use 6 indices per
|
|
// quad to draw with GL_TRIANGLES
|
|
mesh += (drawCount / 6) * 4;
|
|
}
|
|
|
|
#if DEBUG_LAYERS_AS_REGIONS
|
|
drawRegionRectsDebug(layer->region);
|
|
#endif
|
|
}
|
|
|
|
if (layer->debugDrawUpdate) {
|
|
layer->debugDrawUpdate = false;
|
|
|
|
SkPaint paint;
|
|
paint.setColor(0x7f00ff00);
|
|
drawColorRect(x, y, x + layer->layer.getWidth(), y + layer->layer.getHeight(), &paint);
|
|
}
|
|
}
|
|
layer->hasDrawnSinceUpdate = true;
|
|
|
|
if (transform && !transform->isIdentity()) {
|
|
restore();
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Draw filters
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
void OpenGLRenderer::resetPaintFilter() {
|
|
// when clearing the PaintFilter, the masks should also be cleared for simple DrawModifier
|
|
// comparison, see MergingDrawBatch::canMergeWith
|
|
mDrawModifiers.mHasDrawFilter = false;
|
|
mDrawModifiers.mPaintFilterClearBits = 0;
|
|
mDrawModifiers.mPaintFilterSetBits = 0;
|
|
}
|
|
|
|
void OpenGLRenderer::setupPaintFilter(int clearBits, int setBits) {
|
|
mDrawModifiers.mHasDrawFilter = true;
|
|
mDrawModifiers.mPaintFilterClearBits = clearBits & SkPaint::kAllFlags;
|
|
mDrawModifiers.mPaintFilterSetBits = setBits & SkPaint::kAllFlags;
|
|
}
|
|
|
|
const SkPaint* OpenGLRenderer::filterPaint(const SkPaint* paint) {
|
|
if (CC_LIKELY(!mDrawModifiers.mHasDrawFilter || !paint)) {
|
|
return paint;
|
|
}
|
|
|
|
uint32_t flags = paint->getFlags();
|
|
|
|
mFilteredPaint = *paint;
|
|
mFilteredPaint.setFlags((flags & ~mDrawModifiers.mPaintFilterClearBits) |
|
|
mDrawModifiers.mPaintFilterSetBits);
|
|
|
|
return &mFilteredPaint;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
// Drawing implementation
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
Texture* OpenGLRenderer::getTexture(const SkBitmap* bitmap) {
|
|
Texture* texture = mCaches.assetAtlas.getEntryTexture(bitmap);
|
|
if (!texture) {
|
|
return mCaches.textureCache.get(bitmap);
|
|
}
|
|
return texture;
|
|
}
|
|
|
|
void OpenGLRenderer::drawPathTexture(const PathTexture* texture,
|
|
float x, float y, const SkPaint* paint) {
|
|
if (quickRejectSetupScissor(x, y, x + texture->width, y + texture->height)) {
|
|
return;
|
|
}
|
|
|
|
int alpha;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &alpha, &mode);
|
|
|
|
setupDraw();
|
|
setupDrawWithTexture(true);
|
|
setupDrawAlpha8Color(paint->getColor(), alpha);
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawShader(getShader(paint));
|
|
setupDrawBlending(paint, true);
|
|
setupDrawProgram();
|
|
setupDrawModelView(kModelViewMode_TranslateAndScale, false,
|
|
x, y, x + texture->width, y + texture->height);
|
|
setupDrawTexture(texture->id);
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawShaderUniforms(getShader(paint));
|
|
setupDrawMesh(NULL, (GLvoid*) gMeshTextureOffset);
|
|
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount);
|
|
}
|
|
|
|
// Same values used by Skia
|
|
#define kStdStrikeThru_Offset (-6.0f / 21.0f)
|
|
#define kStdUnderline_Offset (1.0f / 9.0f)
|
|
#define kStdUnderline_Thickness (1.0f / 18.0f)
|
|
|
|
void OpenGLRenderer::drawTextDecorations(float underlineWidth, float x, float y,
|
|
const SkPaint* paint) {
|
|
// Handle underline and strike-through
|
|
uint32_t flags = paint->getFlags();
|
|
if (flags & (SkPaint::kUnderlineText_Flag | SkPaint::kStrikeThruText_Flag)) {
|
|
SkPaint paintCopy(*paint);
|
|
|
|
if (CC_LIKELY(underlineWidth > 0.0f)) {
|
|
const float textSize = paintCopy.getTextSize();
|
|
const float strokeWidth = fmax(textSize * kStdUnderline_Thickness, 1.0f);
|
|
|
|
const float left = x;
|
|
float top = 0.0f;
|
|
|
|
int linesCount = 0;
|
|
if (flags & SkPaint::kUnderlineText_Flag) linesCount++;
|
|
if (flags & SkPaint::kStrikeThruText_Flag) linesCount++;
|
|
|
|
const int pointsCount = 4 * linesCount;
|
|
float points[pointsCount];
|
|
int currentPoint = 0;
|
|
|
|
if (flags & SkPaint::kUnderlineText_Flag) {
|
|
top = y + textSize * kStdUnderline_Offset;
|
|
points[currentPoint++] = left;
|
|
points[currentPoint++] = top;
|
|
points[currentPoint++] = left + underlineWidth;
|
|
points[currentPoint++] = top;
|
|
}
|
|
|
|
if (flags & SkPaint::kStrikeThruText_Flag) {
|
|
top = y + textSize * kStdStrikeThru_Offset;
|
|
points[currentPoint++] = left;
|
|
points[currentPoint++] = top;
|
|
points[currentPoint++] = left + underlineWidth;
|
|
points[currentPoint++] = top;
|
|
}
|
|
|
|
paintCopy.setStrokeWidth(strokeWidth);
|
|
|
|
drawLines(&points[0], pointsCount, &paintCopy);
|
|
}
|
|
}
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawRects(const float* rects, int count, const SkPaint* paint) {
|
|
if (currentSnapshot()->isIgnored()) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
return drawColorRects(rects, count, paint, false, true, true);
|
|
}
|
|
|
|
static void mapPointFakeZ(Vector3& point, const mat4& transformXY, const mat4& transformZ) {
|
|
// map z coordinate with true 3d matrix
|
|
point.z = transformZ.mapZ(point);
|
|
|
|
// map x,y coordinates with draw/Skia matrix
|
|
transformXY.mapPoint(point.x, point.y);
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawShadow(float casterAlpha,
|
|
const VertexBuffer* ambientShadowVertexBuffer, const VertexBuffer* spotShadowVertexBuffer) {
|
|
if (currentSnapshot()->isIgnored()) return DrawGlInfo::kStatusDone;
|
|
|
|
// TODO: use quickRejectWithScissor. For now, always force enable scissor.
|
|
mCaches.enableScissor();
|
|
|
|
SkPaint paint;
|
|
paint.setAntiAlias(true); // want to use AlphaVertex
|
|
|
|
// The caller has made sure casterAlpha > 0.
|
|
float ambientShadowAlpha = mAmbientShadowAlpha;
|
|
if (CC_UNLIKELY(mCaches.propertyAmbientShadowStrength >= 0)) {
|
|
ambientShadowAlpha = mCaches.propertyAmbientShadowStrength;
|
|
}
|
|
if (ambientShadowVertexBuffer && ambientShadowAlpha > 0) {
|
|
paint.setARGB(casterAlpha * ambientShadowAlpha, 0, 0, 0);
|
|
drawVertexBuffer(*ambientShadowVertexBuffer, &paint, kVertexBuffer_ShadowInterp);
|
|
}
|
|
|
|
float spotShadowAlpha = mSpotShadowAlpha;
|
|
if (CC_UNLIKELY(mCaches.propertySpotShadowStrength >= 0)) {
|
|
spotShadowAlpha = mCaches.propertySpotShadowStrength;
|
|
}
|
|
if (spotShadowVertexBuffer && spotShadowAlpha > 0) {
|
|
paint.setARGB(casterAlpha * spotShadowAlpha, 0, 0, 0);
|
|
drawVertexBuffer(*spotShadowVertexBuffer, &paint, kVertexBuffer_ShadowInterp);
|
|
}
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
status_t OpenGLRenderer::drawColorRects(const float* rects, int count, const SkPaint* paint,
|
|
bool ignoreTransform, bool dirty, bool clip) {
|
|
if (count == 0) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
int color = paint->getColor();
|
|
// If a shader is set, preserve only the alpha
|
|
if (getShader(paint)) {
|
|
color |= 0x00ffffff;
|
|
}
|
|
|
|
float left = FLT_MAX;
|
|
float top = FLT_MAX;
|
|
float right = FLT_MIN;
|
|
float bottom = FLT_MIN;
|
|
|
|
Vertex mesh[count];
|
|
Vertex* vertex = mesh;
|
|
|
|
for (int index = 0; index < count; index += 4) {
|
|
float l = rects[index + 0];
|
|
float t = rects[index + 1];
|
|
float r = rects[index + 2];
|
|
float b = rects[index + 3];
|
|
|
|
Vertex::set(vertex++, l, t);
|
|
Vertex::set(vertex++, r, t);
|
|
Vertex::set(vertex++, l, b);
|
|
Vertex::set(vertex++, r, b);
|
|
|
|
left = fminf(left, l);
|
|
top = fminf(top, t);
|
|
right = fmaxf(right, r);
|
|
bottom = fmaxf(bottom, b);
|
|
}
|
|
|
|
if (clip && quickRejectSetupScissor(left, top, right, bottom)) {
|
|
return DrawGlInfo::kStatusDone;
|
|
}
|
|
|
|
setupDraw();
|
|
setupDrawNoTexture();
|
|
setupDrawColor(color, ((color >> 24) & 0xFF) * currentSnapshot()->alpha);
|
|
setupDrawShader(getShader(paint));
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawBlending(paint);
|
|
setupDrawProgram();
|
|
setupDrawDirtyRegionsDisabled();
|
|
setupDrawModelView(kModelViewMode_Translate, false,
|
|
0.0f, 0.0f, 0.0f, 0.0f, ignoreTransform);
|
|
setupDrawColorUniforms(getShader(paint));
|
|
setupDrawShaderUniforms(getShader(paint));
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
|
|
if (dirty && hasLayer()) {
|
|
dirtyLayer(left, top, right, bottom, *currentTransform());
|
|
}
|
|
|
|
issueIndexedQuadDraw(&mesh[0], count / 4);
|
|
|
|
return DrawGlInfo::kStatusDrew;
|
|
}
|
|
|
|
void OpenGLRenderer::drawColorRect(float left, float top, float right, float bottom,
|
|
const SkPaint* paint, bool ignoreTransform) {
|
|
int color = paint->getColor();
|
|
// If a shader is set, preserve only the alpha
|
|
if (getShader(paint)) {
|
|
color |= 0x00ffffff;
|
|
}
|
|
|
|
setupDraw();
|
|
setupDrawNoTexture();
|
|
setupDrawColor(color, ((color >> 24) & 0xFF) * currentSnapshot()->alpha);
|
|
setupDrawShader(getShader(paint));
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawBlending(paint);
|
|
setupDrawProgram();
|
|
setupDrawModelView(kModelViewMode_TranslateAndScale, false,
|
|
left, top, right, bottom, ignoreTransform);
|
|
setupDrawColorUniforms(getShader(paint));
|
|
setupDrawShaderUniforms(getShader(paint), ignoreTransform);
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawSimpleMesh();
|
|
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, gMeshCount);
|
|
}
|
|
|
|
void OpenGLRenderer::drawTextureRect(float left, float top, float right, float bottom,
|
|
Texture* texture, const SkPaint* paint) {
|
|
texture->setWrap(GL_CLAMP_TO_EDGE, true);
|
|
|
|
GLvoid* vertices = (GLvoid*) NULL;
|
|
GLvoid* texCoords = (GLvoid*) gMeshTextureOffset;
|
|
|
|
if (texture->uvMapper) {
|
|
vertices = &mMeshVertices[0].x;
|
|
texCoords = &mMeshVertices[0].u;
|
|
|
|
Rect uvs(0.0f, 0.0f, 1.0f, 1.0f);
|
|
texture->uvMapper->map(uvs);
|
|
|
|
resetDrawTextureTexCoords(uvs.left, uvs.top, uvs.right, uvs.bottom);
|
|
}
|
|
|
|
if (CC_LIKELY(currentTransform()->isPureTranslate())) {
|
|
const float x = (int) floorf(left + currentTransform()->getTranslateX() + 0.5f);
|
|
const float y = (int) floorf(top + currentTransform()->getTranslateY() + 0.5f);
|
|
|
|
texture->setFilter(GL_NEAREST, true);
|
|
drawTextureMesh(x, y, x + texture->width, y + texture->height, texture->id,
|
|
paint, texture->blend, vertices, texCoords,
|
|
GL_TRIANGLE_STRIP, gMeshCount, false, true);
|
|
} else {
|
|
texture->setFilter(getFilter(paint), true);
|
|
drawTextureMesh(left, top, right, bottom, texture->id, paint,
|
|
texture->blend, vertices, texCoords, GL_TRIANGLE_STRIP, gMeshCount);
|
|
}
|
|
|
|
if (texture->uvMapper) {
|
|
resetDrawTextureTexCoords(0.0f, 0.0f, 1.0f, 1.0f);
|
|
}
|
|
}
|
|
|
|
void OpenGLRenderer::drawTextureMesh(float left, float top, float right, float bottom,
|
|
GLuint texture, const SkPaint* paint, bool blend,
|
|
GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount,
|
|
bool swapSrcDst, bool ignoreTransform, GLuint vbo,
|
|
ModelViewMode modelViewMode, bool dirty) {
|
|
|
|
int a;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &a, &mode);
|
|
const float alpha = a / 255.0f;
|
|
|
|
setupDraw();
|
|
setupDrawWithTexture();
|
|
setupDrawColor(alpha, alpha, alpha, alpha);
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawBlending(paint, blend, swapSrcDst);
|
|
setupDrawProgram();
|
|
if (!dirty) setupDrawDirtyRegionsDisabled();
|
|
setupDrawModelView(modelViewMode, false, left, top, right, bottom, ignoreTransform);
|
|
setupDrawTexture(texture);
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawMesh(vertices, texCoords, vbo);
|
|
|
|
glDrawArrays(drawMode, 0, elementsCount);
|
|
}
|
|
|
|
void OpenGLRenderer::drawIndexedTextureMesh(float left, float top, float right, float bottom,
|
|
GLuint texture, const SkPaint* paint, bool blend,
|
|
GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount,
|
|
bool swapSrcDst, bool ignoreTransform, GLuint vbo,
|
|
ModelViewMode modelViewMode, bool dirty) {
|
|
|
|
int a;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &a, &mode);
|
|
const float alpha = a / 255.0f;
|
|
|
|
setupDraw();
|
|
setupDrawWithTexture();
|
|
setupDrawColor(alpha, alpha, alpha, alpha);
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawBlending(paint, blend, swapSrcDst);
|
|
setupDrawProgram();
|
|
if (!dirty) setupDrawDirtyRegionsDisabled();
|
|
setupDrawModelView(modelViewMode, false, left, top, right, bottom, ignoreTransform);
|
|
setupDrawTexture(texture);
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawMeshIndices(vertices, texCoords, vbo);
|
|
|
|
glDrawElements(drawMode, elementsCount, GL_UNSIGNED_SHORT, NULL);
|
|
}
|
|
|
|
void OpenGLRenderer::drawAlpha8TextureMesh(float left, float top, float right, float bottom,
|
|
GLuint texture, const SkPaint* paint,
|
|
GLvoid* vertices, GLvoid* texCoords, GLenum drawMode, GLsizei elementsCount,
|
|
bool ignoreTransform, ModelViewMode modelViewMode, bool dirty) {
|
|
|
|
int color = paint != NULL ? paint->getColor() : 0;
|
|
int alpha;
|
|
SkXfermode::Mode mode;
|
|
getAlphaAndMode(paint, &alpha, &mode);
|
|
|
|
setupDraw();
|
|
setupDrawWithTexture(true);
|
|
if (paint != NULL) {
|
|
setupDrawAlpha8Color(color, alpha);
|
|
}
|
|
setupDrawColorFilter(getColorFilter(paint));
|
|
setupDrawShader(getShader(paint));
|
|
setupDrawBlending(paint, true);
|
|
setupDrawProgram();
|
|
if (!dirty) setupDrawDirtyRegionsDisabled();
|
|
setupDrawModelView(modelViewMode, false, left, top, right, bottom, ignoreTransform);
|
|
setupDrawTexture(texture);
|
|
setupDrawPureColorUniforms();
|
|
setupDrawColorFilterUniforms(getColorFilter(paint));
|
|
setupDrawShaderUniforms(getShader(paint), ignoreTransform);
|
|
setupDrawMesh(vertices, texCoords);
|
|
|
|
glDrawArrays(drawMode, 0, elementsCount);
|
|
}
|
|
|
|
void OpenGLRenderer::chooseBlending(bool blend, SkXfermode::Mode mode,
|
|
ProgramDescription& description, bool swapSrcDst) {
|
|
|
|
if (mSnapshot->roundRectClipState != NULL /*&& !mSkipOutlineClip*/) {
|
|
blend = true;
|
|
mDescription.hasRoundRectClip = true;
|
|
}
|
|
mSkipOutlineClip = true;
|
|
|
|
if (mCountOverdraw) {
|
|
if (!mCaches.blend) glEnable(GL_BLEND);
|
|
if (mCaches.lastSrcMode != GL_ONE || mCaches.lastDstMode != GL_ONE) {
|
|
glBlendFunc(GL_ONE, GL_ONE);
|
|
}
|
|
|
|
mCaches.blend = true;
|
|
mCaches.lastSrcMode = GL_ONE;
|
|
mCaches.lastDstMode = GL_ONE;
|
|
|
|
return;
|
|
}
|
|
|
|
blend = blend || mode != SkXfermode::kSrcOver_Mode;
|
|
|
|
if (blend) {
|
|
// These blend modes are not supported by OpenGL directly and have
|
|
// to be implemented using shaders. Since the shader will perform
|
|
// the blending, turn blending off here
|
|
// If the blend mode cannot be implemented using shaders, fall
|
|
// back to the default SrcOver blend mode instead
|
|
if (CC_UNLIKELY(mode > SkXfermode::kScreen_Mode)) {
|
|
if (CC_UNLIKELY(mExtensions.hasFramebufferFetch())) {
|
|
description.framebufferMode = mode;
|
|
description.swapSrcDst = swapSrcDst;
|
|
|
|
if (mCaches.blend) {
|
|
glDisable(GL_BLEND);
|
|
mCaches.blend = false;
|
|
}
|
|
|
|
return;
|
|
} else {
|
|
mode = SkXfermode::kSrcOver_Mode;
|
|
}
|
|
}
|
|
|
|
if (!mCaches.blend) {
|
|
glEnable(GL_BLEND);
|
|
}
|
|
|
|
GLenum sourceMode = swapSrcDst ? gBlendsSwap[mode].src : gBlends[mode].src;
|
|
GLenum destMode = swapSrcDst ? gBlendsSwap[mode].dst : gBlends[mode].dst;
|
|
|
|
if (sourceMode != mCaches.lastSrcMode || destMode != mCaches.lastDstMode) {
|
|
glBlendFunc(sourceMode, destMode);
|
|
mCaches.lastSrcMode = sourceMode;
|
|
mCaches.lastDstMode = destMode;
|
|
}
|
|
} else if (mCaches.blend) {
|
|
glDisable(GL_BLEND);
|
|
}
|
|
mCaches.blend = blend;
|
|
}
|
|
|
|
bool OpenGLRenderer::useProgram(Program* program) {
|
|
if (!program->isInUse()) {
|
|
if (mCaches.currentProgram != NULL) mCaches.currentProgram->remove();
|
|
program->use();
|
|
mCaches.currentProgram = program;
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void OpenGLRenderer::resetDrawTextureTexCoords(float u1, float v1, float u2, float v2) {
|
|
TextureVertex* v = &mMeshVertices[0];
|
|
TextureVertex::setUV(v++, u1, v1);
|
|
TextureVertex::setUV(v++, u2, v1);
|
|
TextureVertex::setUV(v++, u1, v2);
|
|
TextureVertex::setUV(v++, u2, v2);
|
|
}
|
|
|
|
void OpenGLRenderer::getAlphaAndMode(const SkPaint* paint, int* alpha, SkXfermode::Mode* mode) const {
|
|
getAlphaAndModeDirect(paint, alpha, mode);
|
|
if (mDrawModifiers.mOverrideLayerAlpha < 1.0f) {
|
|
// if drawing a layer, ignore the paint's alpha
|
|
*alpha = mDrawModifiers.mOverrideLayerAlpha * 255;
|
|
}
|
|
*alpha *= currentSnapshot()->alpha;
|
|
}
|
|
|
|
float OpenGLRenderer::getLayerAlpha(const Layer* layer) const {
|
|
float alpha;
|
|
if (mDrawModifiers.mOverrideLayerAlpha < 1.0f) {
|
|
alpha = mDrawModifiers.mOverrideLayerAlpha;
|
|
} else {
|
|
alpha = layer->getAlpha() / 255.0f;
|
|
}
|
|
return alpha * currentSnapshot()->alpha;
|
|
}
|
|
|
|
}; // namespace uirenderer
|
|
}; // namespace android
|