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Code Issues Releases Wiki Activity

fix issues with glDrawBuffersARB() code path in prev commit

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This commit is contained in:
fgenesis 2024-04-26 03:28:07 +02:00
parent 5b57d4d6ff
commit f7090f33d5
2 changed files with 15 additions and 9 deletions
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22
BBGE/FrameBuffer.cpp
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@ -33,6 +33,7 @@ struct FBOStack
static FBOStack s_fbostack[4]; // first entry is always unused
static size_t s_stackpos = 0;
static unsigned s_lastFBO = 0;
static bool isOnTop(const FrameBuffer *fbo)
@ -192,6 +193,7 @@ void FrameBuffer::unloadDevice()
if (glDeleteFramebuffersEXT == NULL)
{
s_lastFBO = 0;
debugLog("Already shut down the GL, don't delete framebuffers");
return;
}
@ -199,6 +201,8 @@ void FrameBuffer::unloadDevice()
for(size_t i = 0; i < Countof(_texs); ++i)
if (_fbos[i])
{
if(s_lastFBO == _fbos[i])
s_lastFBO = 0;
debugLog("frameBuffer handle present, deleting");
glDeleteFramebuffersEXT(1, &_fbos[i]);
_fbos[i] = 0;
@ -220,6 +224,7 @@ void FrameBuffer::reloadDevice()
{
if(!_numpages)
return;
s_lastFBO = 0;
debugLog("frameBuffer::reloadDevice");
init(_w, _h, _numpages);
}
@ -228,19 +233,19 @@ void FrameBuffer::_bind(unsigned page) const
{
assert(page < _numpages);
_curpage = page + 1;
unsigned fbo = _numfbos == 1 ? _fbos[0] : _fbos[page];
assert(fbo);
if(fbo != s_lastFBO)
{
s_lastFBO = fbo;
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
}
if(glDrawBuffersARB)
{
assert(_numfbos == 1);
if(!isOnTop(this))
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _fbos[0]);
GLenum buf = GL_COLOR_ATTACHMENT0_EXT + page;
glDrawBuffersARB(1, &buf);
}
else
{
assert(_fbos[page]);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, _fbos[page]);
}
glViewport(0,0,viewportW,viewportH);
}
@ -267,6 +272,7 @@ unsigned FrameBuffer::popCapture() const
prev.fbo->_bind(prev.page);
else
{
s_lastFBO = 0;
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
if(glDrawBuffersARB)
glDrawBuffer(GL_BACK);

2
BBGE/GLLoad.cpp
View file

@ -181,7 +181,7 @@ bool lookup_all_glsyms()
glGenFramebuffersEXT = (PFNGLGENFRAMEBUFFERSEXTPROC)SDL_GL_GetProcAddress("glGenFramebuffersEXT");
glCheckFramebufferStatusEXT = (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)SDL_GL_GetProcAddress("glCheckFramebufferStatusEXT");
glFramebufferTexture2DEXT = (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)SDL_GL_GetProcAddress("glFramebufferTexture2DEXT");
glDrawBuffersARB = NULL;//(PFNGLDRAWBUFFERSARBPROC)SDL_GL_GetProcAddress("glDrawBuffersARB");
glDrawBuffersARB = (PFNGLDRAWBUFFERSARBPROC)SDL_GL_GetProcAddress("glDrawBuffersARB");
// GL 4.3+, but maybe available as an extension
glCopyImageSubDataEXT = (PFNGLCOPYIMAGESUBDATAEXTPROC)SDL_GL_GetProcAddress("glCopyImageSubDataEXT");