You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.6 KiB
98 lines
2.6 KiB
4 months ago
|
/*
|
||
|
|
* Copyright (C) 2010 The Android Open Source Project
|
||
|
|
* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <GLES2/gl2.h>
|
||
|
|
#include <EGL/egl.h>
|
||
|
|
#include <gl2ext.h>
|
||
|
|
#include <OpenGLRenderer.h>
|
||
|
|
#include "tilerenderer.h"
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
ANDROID_SINGLETON_STATIC_INSTANCE(uirenderer::TileRenderer) ;
|
||
|
|
namespace uirenderer {
|
||
|
|
|
||
|
|
TileRenderer::TileRenderer() {
|
||
|
|
mIsTiled = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
TileRenderer::~TileRenderer() {
|
||
|
|
}
|
||
|
|
|
||
|
|
void TileRenderer::startTileRendering(OpenGLRenderer* renderer,
|
||
|
|
int left, int top,
|
||
|
|
int right, int bottom) {
|
||
|
|
int width = 0;
|
||
|
|
int height = 0;
|
||
|
|
GLenum status = GL_NO_ERROR;
|
||
|
|
|
||
|
|
if (renderer != NULL) {
|
||
|
|
renderer->getViewport(width, height);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!left && !right && !top && !bottom) {
|
||
|
|
left = 0;
|
||
|
|
top = 0;
|
||
|
|
right = width;
|
||
|
|
bottom = height;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!left && !right && !top && !bottom) {
|
||
|
|
//can't do tile rendering
|
||
|
|
ALOGE("can't tile render; drity region, width, height not available");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
int l = left, t = (height - bottom), w = (right - left), h = (bottom - top), preserve = 0;
|
||
|
|
|
||
|
|
if (l < 0 || t < 0) {
|
||
|
|
l = (l < 0) ? 0 : l;
|
||
|
|
t = (t < 0) ? 0 : t;
|
||
|
|
preserve = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (w > width || h > height) {
|
||
|
|
w = (w > width) ? width : w;
|
||
|
|
h = (h > height) ? height : h;
|
||
|
|
preserve = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
//clear off all errors before tiling, if any
|
||
|
|
while ((status = glGetError()) != GL_NO_ERROR);
|
||
|
|
|
||
|
|
if (preserve)
|
||
|
|
glStartTilingQCOM(l, t, w, h, GL_COLOR_BUFFER_BIT0_QCOM);
|
||
|
|
else
|
||
|
|
glStartTilingQCOM(l, t, w, h, GL_NONE);
|
||
|
|
|
||
|
|
status = glGetError();
|
||
|
|
if (status == GL_NO_ERROR)
|
||
|
|
mIsTiled = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void TileRenderer::endTileRendering(OpenGLRenderer*) {
|
||
|
|
if (!mIsTiled) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
glEndTilingQCOM(GL_COLOR_BUFFER_BIT0_QCOM);
|
||
|
|
mIsTiled = false;
|
||
|
|
GLenum status = GL_NO_ERROR;
|
||
|
|
while ((status = glGetError()) != GL_NO_ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
}; // namespace uirenderer
|
||
|
|
}; // namespace android
|