android_frameworks_base/libs/hwui/UIOpenGLRenderer.cpp
Romain Guy 08ae317c21 Add glOrtho equivalent to the OpenGL ES 2.0 renderer.
Change-Id: I063dad3d81dab7833acb1e7a9c7121f8efd2a044
2010-06-21 19:35:50 -07:00

58 lines
1.4 KiB
C++

/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "UIOpenGLRenderer"
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/Log.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include "UIOpenGLRenderer.h"
#include "UIMatrix.h"
namespace android {
UIOpenGLRenderer::UIOpenGLRenderer() {
LOGD("Create UIOpenGLRenderer");
}
UIOpenGLRenderer::~UIOpenGLRenderer() {
LOGD("Destroy UIOpenGLRenderer");
}
void UIOpenGLRenderer::setViewport(int width, int height) {
glViewport(0, 0, width, height);
mat4 ortho;
ortho.loadOrtho(0, width, height, 0, 0, 1);
ortho.copyTo(mOrthoMatrix);
}
void UIOpenGLRenderer::prepare() {
glDisable(GL_SCISSOR_TEST);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_SCISSOR_TEST);
}
}; // namespace android