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emulator opengl: implement eglChooseConfig functionality.

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Added new RenderControl command to request the host to execute
the ChooseConfig functionality.

Change-Id: Ib92be313a6df740de69d671c6994ec6cae17ea13
This commit is contained in:
Stas Gurtovoy
2011-05-04 08:53:51 +03:00
committed by Guy Zadikario
parent 33dc9add2a
commit a7b7e95b03
7 changed files with 88 additions and 36 deletions
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52
tools/emulator/opengl/host/libs/libOpenglRender/FBConfig.cpp
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@@ -24,15 +24,15 @@ int FBConfig::s_numConfigs = 0;
const GLuint FBConfig::s_configAttribs[] = {
EGL_DEPTH_SIZE, // must be first - see getDepthSize()
EGL_STENCIL_SIZE, // must be second - see getStencilSize()
EGL_RENDERABLE_TYPE, // must be third - see getRenderableType()
EGL_SURFACE_TYPE, // must be fourth - see getSurfaceType()
EGL_RENDERABLE_TYPE,// must be third - see getRenderableType()
EGL_SURFACE_TYPE, // must be fourth - see getSurfaceType()
EGL_CONFIG_ID, // must be fifth - see chooseConfig()
EGL_BUFFER_SIZE,
EGL_ALPHA_SIZE,
EGL_BLUE_SIZE,
EGL_GREEN_SIZE,
EGL_RED_SIZE,
EGL_CONFIG_CAVEAT,
EGL_CONFIG_ID,
EGL_LEVEL,
EGL_MAX_PBUFFER_HEIGHT,
EGL_MAX_PBUFFER_PIXELS,
@@ -201,6 +201,52 @@ void FBConfig::packConfigsInfo(GLuint *buffer)
}
}
int FBConfig::chooseConfig(FrameBuffer *fb, EGLint * attribs, uint32_t * configs, uint32_t configs_size)
{
EGLDisplay dpy = fb->getDisplay();
int ret = 0;
if (dpy == EGL_NO_DISPLAY) {
fprintf(stderr,"Could not get EGL Display\n");
return ret;
}
//
// Query the num of configs in the EGL backend
//
EGLint nConfigs;
if (!s_egl.eglGetConfigs(dpy, NULL, 0, &nConfigs)) {
fprintf(stderr, "Could not get number of available configs\n");
return ret;
}
//
// Query the max matching configs in the backend
//
EGLConfig *matchedConfigs = new EGLConfig[nConfigs];
s_egl.eglChooseConfig(dpy, attribs, matchedConfigs, nConfigs, &nConfigs);
//
// From all matchedConfigs we need only config_size FBConfigs, so we intersect both lists compating the CONFIG_ID attribute
//
uint32_t nVerifiedCfgs = 0;
for (int matchedIdx=0; matchedIdx<nConfigs; matchedIdx++) {
if (nVerifiedCfgs >= configs_size) break; //We have enouhgt configs
int sCfgId;
s_egl.eglGetConfigAttrib(dpy, matchedConfigs[matchedIdx], EGL_CONFIG_ID, &sCfgId);
for (int fbIdx=0; fbIdx<s_numConfigs; fbIdx++) {
int dCfgId = s_fbConfigs[fbIdx]->m_attribValues[4]; //CONFIG_ID
if (sCfgId == dCfgId) {
//This config matches the requested attributes and filtered into fbConfigs, so we're happy with it
configs[nVerifiedCfgs++] = fbIdx;
break;
}
}
}
delete matchedConfigs;
return nVerifiedCfgs;
}
FBConfig::FBConfig(EGLDisplay p_eglDpy, EGLConfig p_eglCfg)
{
m_eglConfig = p_eglCfg;