c2f31df8b3
skbug.com/5814 Test: compile only Change-Id: Ibbaff43df1117b2ca77fd8f917f03d88cc476330 (cherry picked from commit 26edbcba8a2ed4cb300e7f87e679e3b73cec2772)
98 lines
2.6 KiB
C++
98 lines
2.6 KiB
C++
/*
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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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#ifndef ANDROID_HWUI_SKIA_SHADER_H
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#define ANDROID_HWUI_SKIA_SHADER_H
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#include "FloatColor.h"
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#include "Matrix.h"
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#include <GLES2/gl2.h>
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#include <SkShader.h>
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#include <cutils/compiler.h>
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namespace android {
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namespace uirenderer {
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class Caches;
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class Extensions;
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class Layer;
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class Texture;
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struct ProgramDescription;
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/**
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* Type of Skia shader in use.
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*
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* Note that kBitmap | kGradient = kCompose, since Compose implies
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* both its component types are in use simultaneously. No other
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* composition of multiple types is supported.
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*/
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enum SkiaShaderType {
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kNone_SkiaShaderType = 0,
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kBitmap_SkiaShaderType = 1,
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kGradient_SkiaShaderType = 2,
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kCompose_SkiaShaderType = kBitmap_SkiaShaderType | kGradient_SkiaShaderType,
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kLayer_SkiaShaderType = 4,
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};
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struct SkiaShaderData {
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SkiaShaderType skiaShaderType;
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struct BitmapShaderData {
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Texture* bitmapTexture;
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GLuint bitmapSampler;
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GLenum wrapS;
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GLenum wrapT;
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Matrix4 textureTransform;
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float textureDimension[2];
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} bitmapData;
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struct GradientShaderData {
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Matrix4 screenSpace;
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// simple gradient
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FloatColor startColor;
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FloatColor endColor;
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// complex gradient
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Texture* gradientTexture;
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GLuint gradientSampler;
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GLenum wrapST;
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} gradientData;
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struct LayerShaderData {
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Layer* layer;
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GLuint bitmapSampler;
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GLenum wrapS;
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GLenum wrapT;
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Matrix4 textureTransform;
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float textureDimension[2];
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} layerData;
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};
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class SkiaShader {
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public:
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static void store(Caches& caches, const SkShader& shader, const Matrix4& modelViewMatrix,
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GLuint* textureUnit, ProgramDescription* description,
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SkiaShaderData* outData);
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static void apply(Caches& caches, const SkiaShaderData& data,
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const GLsizei width, const GLsizei height);
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};
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_SKIA_SHADER_H
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