emulator: opengl: Back-port GLES emulation from the master tree.
The modules here are only built when BUILD_EMULATOR_OPENGL is defined to true in your environment or your BoardConfig.mk (see tools/emulator/opengl/Android.mk) Change-Id: I5f32c35b4452fb5a7b4d5f9fc5870ec1da6032e6
This commit is contained in:
David 'Digit' Turner
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/*
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* Copyright (C) 2011 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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#include "renderControl_dec.h"
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#include "FrameBuffer.h"
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#include "FBConfig.h"
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#include "EGLDispatch.h"
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#include "GLDispatch.h"
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#include "GL2Dispatch.h"
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#include "ThreadInfo.h"
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static const GLint rendererVersion = 1;
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static GLint rcGetRendererVersion()
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{
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return rendererVersion;
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}
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static EGLint rcGetEGLVersion(EGLint* major, EGLint* minor)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return EGL_FALSE;
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}
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*major = (EGLint)fb->getCaps().eglMajor;
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*minor = (EGLint)fb->getCaps().eglMinor;
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return EGL_TRUE;
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}
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static EGLint rcQueryEGLString(EGLenum name, void* buffer, EGLint bufferSize)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return 0;
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}
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const char *str = s_egl.eglQueryString(fb->getDisplay(), name);
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if (!str) {
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return 0;
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}
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int len = strlen(str) + 1;
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if (!buffer || len > bufferSize) {
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return -len;
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}
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strcpy((char *)buffer, str);
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return len;
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}
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static EGLint rcGetGLString(EGLenum name, void* buffer, EGLint bufferSize)
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{
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RenderThreadInfo *tInfo = getRenderThreadInfo();
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if (!tInfo || !tInfo->currContext.Ptr()) {
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return 0;
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}
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const char *str = NULL;
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#ifdef WITH_GLES2
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if (tInfo->currContext->isGL2()) {
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str = (const char *)s_gl2.glGetString(name);
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}
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else {
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#endif
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str = (const char *)s_gl.glGetString(name);
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#ifdef WITH_GLES2
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}
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#endif
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if (!str) {
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return 0;
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}
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int len = strlen(str) + 1;
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if (!buffer || len > bufferSize) {
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return -len;
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}
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strcpy((char *)buffer, str);
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return len;
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}
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static EGLint rcGetNumConfigs(uint32_t* numAttribs)
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{
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if (numAttribs) {
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*numAttribs = FBConfig::getNumAttribs();
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}
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return FBConfig::getNumConfigs();
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}
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static EGLint rcGetConfigs(uint32_t bufSize, GLuint* buffer)
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{
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int configSize = FBConfig::getNumAttribs();
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int nConfigs = FBConfig::getNumConfigs();
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uint32_t neededSize = (nConfigs + 1) * configSize * sizeof(GLuint);
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if (!buffer || bufSize < neededSize) {
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return -neededSize;
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}
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FBConfig::packConfigsInfo(buffer);
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return nConfigs;
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}
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static EGLint rcChooseConfig(EGLint *attribs, uint32_t attribs_size, uint32_t *configs, uint32_t configs_size)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return 0;
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}
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return FBConfig::chooseConfig(fb, attribs, configs, configs_size);
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}
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static EGLint rcGetFBParam(EGLint param)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return 0;
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}
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EGLint ret = 0;
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switch(param) {
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case FB_WIDTH:
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ret = fb->getWidth();
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break;
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case FB_HEIGHT:
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ret = fb->getHeight();
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break;
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case FB_XDPI:
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ret = 72; // XXX: should be implemented
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break;
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case FB_YDPI:
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ret = 72; // XXX: should be implemented
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break;
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case FB_FPS:
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ret = 60;
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break;
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case FB_MIN_SWAP_INTERVAL:
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ret = 1; // XXX: should be implemented
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break;
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case FB_MAX_SWAP_INTERVAL:
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ret = 1; // XXX: should be implemented
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break;
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default:
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break;
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}
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return ret;
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}
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static uint32_t rcCreateContext(uint32_t config,
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uint32_t share, uint32_t glVersion)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return 0;
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}
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HandleType ret = fb->createRenderContext(config, share, glVersion == 2);
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return ret;
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}
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static void rcDestroyContext(uint32_t context)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->DestroyRenderContext(context);
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}
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static uint32_t rcCreateWindowSurface(uint32_t config,
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uint32_t width, uint32_t height)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return 0;
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}
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return fb->createWindowSurface(config, width, height);
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}
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static void rcDestroyWindowSurface(uint32_t windowSurface)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->DestroyWindowSurface( windowSurface );
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}
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static uint32_t rcCreateColorBuffer(uint32_t width,
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uint32_t height, GLenum internalFormat)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return 0;
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}
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return fb->createColorBuffer(width, height, internalFormat);
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}
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static void rcDestroyColorBuffer(uint32_t colorbuffer)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->DestroyColorBuffer( colorbuffer );
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}
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static int rcFlushWindowColorBuffer(uint32_t windowSurface)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return -1;
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}
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fb->flushWindowSurfaceColorBuffer(windowSurface);
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return 0;
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}
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static void rcSetWindowColorBuffer(uint32_t windowSurface,
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uint32_t colorBuffer)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->setWindowSurfaceColorBuffer(windowSurface, colorBuffer);
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}
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static EGLint rcMakeCurrent(uint32_t context,
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uint32_t drawSurf, uint32_t readSurf)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return EGL_FALSE;
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}
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bool ret = fb->bindContext(context, drawSurf, readSurf);
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return (ret ? EGL_TRUE : EGL_FALSE);
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}
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static void rcFBPost(uint32_t colorBuffer)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->post(colorBuffer);
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}
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static void rcFBSetSwapInterval(EGLint interval)
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{
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// XXX: TBD - should be implemented
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}
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static void rcBindTexture(uint32_t colorBuffer)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->bindColorBufferToTexture(colorBuffer);
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}
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static void rcBindRenderbuffer(uint32_t colorBuffer)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return;
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}
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fb->bindColorBufferToRenderbuffer(colorBuffer);
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}
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static EGLint rcColorBufferCacheFlush(uint32_t colorBuffer,
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EGLint postCount, int forRead)
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{
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// XXX: TBD - should be implemented
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return 0;
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}
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static void rcReadColorBuffer(uint32_t colorBuffer,
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GLint x, GLint y,
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GLint width, GLint height,
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GLenum format, GLenum type, void* pixels)
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{
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// XXX: TBD - should be implemented
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}
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static int rcUpdateColorBuffer(uint32_t colorBuffer,
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GLint x, GLint y,
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GLint width, GLint height,
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GLenum format, GLenum type, void* pixels)
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{
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FrameBuffer *fb = FrameBuffer::getFB();
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if (!fb) {
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return -1;
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}
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fb->updateColorBuffer(colorBuffer, x, y, width, height, format, type, pixels);
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return 0;
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}
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void initRenderControlContext(renderControl_decoder_context_t *dec)
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{
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dec->set_rcGetRendererVersion(rcGetRendererVersion);
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dec->set_rcGetEGLVersion(rcGetEGLVersion);
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dec->set_rcQueryEGLString(rcQueryEGLString);
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dec->set_rcGetGLString(rcGetGLString);
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dec->set_rcGetNumConfigs(rcGetNumConfigs);
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dec->set_rcGetConfigs(rcGetConfigs);
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dec->set_rcChooseConfig(rcChooseConfig);
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dec->set_rcGetFBParam(rcGetFBParam);
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dec->set_rcCreateContext(rcCreateContext);
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dec->set_rcDestroyContext(rcDestroyContext);
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dec->set_rcCreateWindowSurface(rcCreateWindowSurface);
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dec->set_rcDestroyWindowSurface(rcDestroyWindowSurface);
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dec->set_rcCreateColorBuffer(rcCreateColorBuffer);
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dec->set_rcDestroyColorBuffer(rcDestroyColorBuffer);
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dec->set_rcSetWindowColorBuffer(rcSetWindowColorBuffer);
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dec->set_rcFlushWindowColorBuffer(rcFlushWindowColorBuffer);
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dec->set_rcMakeCurrent(rcMakeCurrent);
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dec->set_rcFBPost(rcFBPost);
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dec->set_rcFBSetSwapInterval(rcFBSetSwapInterval);
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dec->set_rcBindTexture(rcBindTexture);
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dec->set_rcBindRenderbuffer(rcBindRenderbuffer);
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dec->set_rcColorBufferCacheFlush(rcColorBufferCacheFlush);
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dec->set_rcReadColorBuffer(rcReadColorBuffer);
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dec->set_rcUpdateColorBuffer(rcUpdateColorBuffer);
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}
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