void PreparePresentSurfaceGLES(EAGLSurfaceDesc* surface)
{
#if GL_APPLE_framebuffer_multisample
if( surface->msaaSamples > 0 && _supportsMSAA )
{
Profiler_StartMSAAResolve();
UNITY_DBG_LOG (" ResolveMSAA: samples=%i msaaFBO=%i destFBO=%i\n", surface->msaaSamples, surface->msaaFramebuffer, surface->framebuffer);
GLES_CHK( glBindFramebufferOES(GL_READ_FRAMEBUFFER_APPLE, surface->msaaFramebuffer) );
GLES_CHK( glBindFramebufferOES(GL_DRAW_FRAMEBUFFER_APPLE, surface->framebuffer) );
GLES_CHK( glResolveMultisampleFramebufferAPPLE() );
Profiler_EndMSAAResolve();
}
#endif
// update screenshot here
if( UnityIsCaptureScreenshotRequested() )
{
GLint curfb = 0;
GLES_CHK( glGetIntegerv(GL_FRAMEBUFFER_BINDING, &curfb) );
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, surface->framebuffer) );
UnityCaptureScreenshot();
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, curfb) );
}
#if GL_EXT_discard_framebuffer
if( _supportsDiscard )
{
GLenum attachments[3];
int discardCount = 0;
if (surface->msaaSamples > 1 && _supportsMSAA)
attachments[discardCount++] = GL_COLOR_ATTACHMENT0_OES;
if (surface->depthFormat)
attachments[discardCount++] = GL_DEPTH_ATTACHMENT_OES;
attachments[discardCount++] = GL_STENCIL_ATTACHMENT_OES;
GLenum target = (surface->msaaSamples > 1 && _supportsMSAA) ? GL_READ_FRAMEBUFFER_APPLE: GL_FRAMEBUFFER_OES;
if (discardCount > 0)
{
GLES_CHK( glDiscardFramebufferEXT(target, discardCount, attachments) );
}
}
#endif
}
extern "C" bool UnityResolveMSAA(GLuint destFBO, GLuint colorTex, GLuint colorBuf, GLuint depthTex, GLuint depthBuf)
{
#if GL_APPLE_framebuffer_multisample
if (_surface.msaaSamples > 0 && _supportsMSAA && destFBO!=_surface.msaaFramebuffer && destFBO!=_surface.framebuffer)
{
Profiler_StartMSAAResolve();
GLint oldFBO;
GLES_CHK( glGetIntegerv (GL_FRAMEBUFFER_BINDING_OES, &oldFBO) );
UNITY_DBG_LOG ("UnityResolveMSAA: samples=%i msaaFBO=%i destFBO=%i colorTex=%i colorRB=%i depthTex=%i depthRB=%i\n", _surface.msaaSamples, _surface.msaaFramebuffer, destFBO, colorTex, colorBuf, depthTex, depthBuf);
UNITY_DBG_LOG (" bind dest as DRAW FBO and textures/buffers into it\n");
GLES_CHK( glBindFramebufferOES (GL_DRAW_FRAMEBUFFER_APPLE, destFBO) );
if (colorTex)
GLES_CHK( glFramebufferTexture2DOES( GL_DRAW_FRAMEBUFFER_APPLE, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, colorTex, 0 ) );
else if (colorBuf)
GLES_CHK( glFramebufferRenderbufferOES (GL_DRAW_FRAMEBUFFER_APPLE, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, colorBuf) );
if (depthTex)
GLES_CHK( glFramebufferTexture2DOES( GL_DRAW_FRAMEBUFFER_APPLE, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthTex, 0 ) );
else if (depthBuf)
GLES_CHK( glFramebufferRenderbufferOES (GL_DRAW_FRAMEBUFFER_APPLE, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depthBuf) );
UNITY_DBG_LOG (" bind msaa as READ FBO\n");
GLES_CHK( glBindFramebufferOES(GL_READ_FRAMEBUFFER_APPLE, _surface.msaaFramebuffer) );
UNITY_DBG_LOG (" glResolveMultisampleFramebufferAPPLE ();\n");
GLES_CHK( glResolveMultisampleFramebufferAPPLE() );
GLES_CHK( glBindFramebufferOES (GL_FRAMEBUFFER_OES, oldFBO) );
Profiler_EndMSAAResolve();
return true;
}
#endif
return false;
}
void PreparePresentSurfaceGLES(EAGLSurfaceDesc* surface)
{
#if GL_APPLE_framebuffer_multisample
if( surface->msaaSamples > 1 && _supportsMSAA )
{
Profiler_StartMSAAResolve();
GLuint drawFB = surface->targetFramebuffer ? surface->targetFramebuffer : surface->systemFramebuffer;
GLES_CHK( glBindFramebufferOES(GL_READ_FRAMEBUFFER_APPLE, surface->msaaFramebuffer) );
GLES_CHK( glBindFramebufferOES(GL_DRAW_FRAMEBUFFER_APPLE, drawFB) );
GLES_CHK( glResolveMultisampleFramebufferAPPLE() );
Profiler_EndMSAAResolve();
}
#endif
// update screenshot from target FBO to get requested resolution
if( UnityIsCaptureScreenshotRequested() )
{
GLint target = surface->targetFramebuffer ? surface->targetFramebuffer : surface->systemFramebuffer;
GLint curfb = 0;
GLES_CHK( glGetIntegerv(GL_FRAMEBUFFER_BINDING, &curfb) );
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, target) );
UnityCaptureScreenshot();
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, curfb) );
}
if( surface->targetFramebuffer )
{
gDefaultFBO = surface->systemFramebuffer;
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, gDefaultFBO) );
UnityBlitToSystemFB(surface->targetRT, surface->targetW, surface->targetH, surface->systemW, surface->systemH);
gDefaultFBO = surface->msaaFramebuffer ? surface->msaaFramebuffer : surface->targetFramebuffer;
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, gDefaultFBO) );
}
#if GL_EXT_discard_framebuffer
if( _supportsDiscard )
{
GLenum discardAttach[] = {GL_COLOR_ATTACHMENT0_OES, GL_DEPTH_ATTACHMENT_OES, GL_STENCIL_ATTACHMENT_OES};
if( surface->msaaFramebuffer )
GLES_CHK( glDiscardFramebufferEXT(GL_READ_FRAMEBUFFER_APPLE, 3, discardAttach) );
if(surface->targetFramebuffer)
{
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, surface->targetFramebuffer) );
GLES_CHK( glDiscardFramebufferEXT(GL_FRAMEBUFFER_OES, 3, discardAttach) );
}
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, surface->systemFramebuffer) );
GLES_CHK( glDiscardFramebufferEXT(GL_FRAMEBUFFER_OES, 2, &discardAttach[1]) );
GLES_CHK( glBindFramebufferOES(GL_FRAMEBUFFER_OES, gDefaultFBO) );
}
#endif
}