/*
==============
CaptureRenderToFile
==============
*/
void idRenderSystemLocal::CaptureRenderToFile( const char *fileName, bool fixAlpha ) {
if ( !glConfig.isInitialized ) {
return;
}
renderCrop_t *rc = &renderCrops[currentRenderCrop];
guiModel->EmitFullScreen();
guiModel->Clear();
R_IssueRenderCommands();
qglReadBuffer( GL_BACK );
// include extra space for OpenGL padding to word boundaries
int c = ( rc->width + 3 ) * rc->height;
byte *data = (byte *)R_StaticAlloc( c * 3 );
qglReadPixels( rc->x, rc->y, rc->width, rc->height, GL_RGB, GL_UNSIGNED_BYTE, data );
byte *data2 = (byte *)R_StaticAlloc( c * 4 );
for ( int i = 0 ; i < c ; i++ ) {
data2[ i * 4 ] = data[ i * 3 ];
data2[ i * 4 + 1 ] = data[ i * 3 + 1 ];
data2[ i * 4 + 2 ] = data[ i * 3 + 2 ];
data2[ i * 4 + 3 ] = 0xff;
}
R_WriteTGA( fileName, data2, rc->width, rc->height, true );
R_StaticFree( data );
R_StaticFree( data2 );
}
/*
* RFB_AttachTextureToObject
*/
void RFB_AttachTextureToObject( int object, image_t *texture )
{
r_fbo_t *fbo;
int attachment;
assert( object > 0 && object <= r_num_framebuffer_objects );
if( object <= 0 || object > r_num_framebuffer_objects ) {
return;
}
assert( texture != NULL );
if( !texture ) {
return;
}
fbo = r_framebuffer_objects + object - 1;
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fbo->objectID );
if( texture->flags & IT_DEPTH ) {
attachment = GL_DEPTH_ATTACHMENT_EXT;
fbo->depthTexture = texture;
} else {
attachment = GL_COLOR_ATTACHMENT0_EXT;
fbo->colorTexture = texture;
#ifndef GL_ES_VERSION_2_0
qglDrawBuffer( GL_COLOR_ATTACHMENT0_EXT );
qglReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
#endif
}
texture->fbo = object;
// attach texture
qglFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, attachment, GL_TEXTURE_2D, texture->texnum, 0 );
if( ( texture->flags & ( IT_DEPTH|IT_STENCIL ) ) == ( IT_DEPTH|IT_STENCIL ) ) {
qglFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_TEXTURE_2D, texture->texnum, 0 );
}
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, r_bound_framebuffer_objectID ? r_bound_framebuffer_object->objectID : 0 );
}
/*
==============
idRenderSystemLocal::CaptureRenderToFile
==============
*/
void idRenderSystemLocal::CaptureRenderToFile( const char* fileName, bool fixAlpha )
{
if( !R_IsInitialized() )
{
return;
}
idScreenRect& rc = renderCrops[currentRenderCrop];
guiModel->EmitFullScreen();
guiModel->Clear();
RenderCommandBuffers( frameData->cmdHead );
qglReadBuffer( GL_BACK );
// include extra space for OpenGL padding to word boundaries
int c = ( rc.GetWidth() + 3 ) * rc.GetHeight();
byte* data = ( byte* )R_StaticAlloc( c * 3 );
qglReadPixels( rc.x1, rc.y1, rc.GetWidth(), rc.GetHeight(), GL_RGB, GL_UNSIGNED_BYTE, data );
byte* data2 = ( byte* )R_StaticAlloc( c * 4 );
for( int i = 0 ; i < c ; i++ )
{
data2[ i * 4 ] = data[ i * 3 ];
data2[ i * 4 + 1 ] = data[ i * 3 + 1 ];
data2[ i * 4 + 2 ] = data[ i * 3 + 2 ];
data2[ i * 4 + 3 ] = 0xff;
}
R_WriteTGA( fileName, data2, rc.GetWidth(), rc.GetHeight(), true );
R_StaticFree( data );
R_StaticFree( data2 );
}
/*
============
FBO_Init
============
*/
void FBO_Init(void)
{
int i;
// int width, height, hdrFormat, multisample;
int hdrFormat, multisample;
ri.Printf(PRINT_ALL, "------- FBO_Init -------\n");
if(!glRefConfig.framebufferObject)
return;
tr.numFBOs = 0;
GL_CheckErrors();
R_IssuePendingRenderCommands();
/* if(glRefConfig.textureNonPowerOfTwo)
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NextPowerOfTwo(glConfig.vidWidth);
height = NextPowerOfTwo(glConfig.vidHeight);
} */
hdrFormat = GL_RGBA8;
if (r_hdr->integer && glRefConfig.framebufferObject && glRefConfig.textureFloat)
{
hdrFormat = GL_RGBA16F_ARB;
}
qglGetIntegerv(GL_MAX_SAMPLES_EXT, &multisample);
if (r_ext_framebuffer_multisample->integer < multisample)
{
multisample = r_ext_framebuffer_multisample->integer;
}
if (multisample < 2 || !glRefConfig.framebufferBlit)
multisample = 0;
if (multisample != r_ext_framebuffer_multisample->integer)
{
ri.Cvar_SetValue("r_ext_framebuffer_multisample", (float)multisample);
}
// only create a render FBO if we need to resolve MSAA or do HDR
// otherwise just render straight to the screen (tr.renderFbo = NULL)
if (multisample && glRefConfig.framebufferMultisample)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.renderFbo);
FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, multisample);
FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24_ARB, 0, multisample);
R_CheckFBO(tr.renderFbo);
tr.msaaResolveFbo = FBO_Create("_msaaResolve", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.msaaResolveFbo);
//FBO_CreateBuffer(tr.msaaResolveFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.renderImage, 0);
//FBO_CreateBuffer(tr.msaaResolveFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.msaaResolveFbo);
}
else if (r_hdr->integer)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.renderFbo);
//FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.renderImage, 0);
//FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.renderFbo);
}
// clear render buffer
// this fixes the corrupt screen bug with r_hdr 1 on older hardware
if (tr.renderFbo)
{
FBO_Bind(tr.renderFbo);
qglClearColor( 1, 0, 0.5, 1 );
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
FBO_Bind(NULL);
}
if (r_drawSunRays->integer)
{
tr.sunRaysFbo = FBO_Create("_sunRays", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.sunRaysFbo);
FBO_AttachTextureImage(tr.sunRaysImage, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.sunRaysFbo);
}
// FIXME: Don't use separate color/depth buffers for a shadow buffer
if (MAX_DRAWN_PSHADOWS && tr.pshadowMaps[0])
{
for( i = 0; i < MAX_DRAWN_PSHADOWS; i++)
{
tr.pshadowFbos[i] = FBO_Create(va("_shadowmap%d", i), tr.pshadowMaps[i]->width, tr.pshadowMaps[i]->height);
FBO_Bind(tr.pshadowFbos[i]);
//FBO_CreateBuffer(tr.pshadowFbos[i], GL_RGBA8, 0, 0);
FBO_AttachTextureImage(tr.pshadowMaps[i], 0);
FBO_CreateBuffer(tr.pshadowFbos[i], GL_DEPTH_COMPONENT24_ARB, 0, 0);
//R_AttachFBOTextureDepth(tr.textureDepthImage->texnum);
R_CheckFBO(tr.pshadowFbos[i]);
}
}
if (tr.sunShadowDepthImage[0])
{
for ( i = 0; i < 4; i++)
{
tr.sunShadowFbo[i] = FBO_Create("_sunshadowmap", tr.sunShadowDepthImage[i]->width, tr.sunShadowDepthImage[i]->height);
FBO_Bind(tr.sunShadowFbo[i]);
//FBO_CreateBuffer(tr.sunShadowFbo[i], GL_RGBA8, 0, 0);
//FBO_AttachTextureImage(tr.sunShadowImage, 0);
qglDrawBuffer(GL_NONE);
qglReadBuffer(GL_NONE);
//FBO_CreateBuffer(tr.sunShadowFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.sunShadowDepthImage[i]->texnum);
R_CheckFBO(tr.sunShadowFbo[i]);
}
tr.screenShadowFbo = FBO_Create("_screenshadow", tr.screenShadowImage->width, tr.screenShadowImage->height);
FBO_Bind(tr.screenShadowFbo);
FBO_AttachTextureImage(tr.screenShadowImage, 0);
R_CheckFBO(tr.screenShadowFbo);
}
for (i = 0; i < 2; i++)
{
tr.textureScratchFbo[i] = FBO_Create(va("_texturescratch%d", i), tr.textureScratchImage[i]->width, tr.textureScratchImage[i]->height);
FBO_Bind(tr.textureScratchFbo[i]);
//FBO_CreateBuffer(tr.textureScratchFbo[i], GL_RGBA8, 0, 0);
FBO_AttachTextureImage(tr.textureScratchImage[i], 0);
R_CheckFBO(tr.textureScratchFbo[i]);
}
{
tr.calcLevelsFbo = FBO_Create("_calclevels", tr.calcLevelsImage->width, tr.calcLevelsImage->height);
FBO_Bind(tr.calcLevelsFbo);
//FBO_CreateBuffer(tr.calcLevelsFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.calcLevelsImage, 0);
R_CheckFBO(tr.calcLevelsFbo);
}
{
tr.targetLevelsFbo = FBO_Create("_targetlevels", tr.targetLevelsImage->width, tr.targetLevelsImage->height);
FBO_Bind(tr.targetLevelsFbo);
//FBO_CreateBuffer(tr.targetLevelsFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.targetLevelsImage, 0);
R_CheckFBO(tr.targetLevelsFbo);
}
for (i = 0; i < 2; i++)
{
tr.quarterFbo[i] = FBO_Create(va("_quarter%d", i), tr.quarterImage[i]->width, tr.quarterImage[i]->height);
FBO_Bind(tr.quarterFbo[i]);
//FBO_CreateBuffer(tr.quarterFbo[i], hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.quarterImage[i], 0);
R_CheckFBO(tr.quarterFbo[i]);
}
if (r_ssao->integer)
{
tr.hdrDepthFbo = FBO_Create("_hdrDepth", tr.hdrDepthImage->width, tr.hdrDepthImage->height);
FBO_Bind(tr.hdrDepthFbo);
FBO_AttachTextureImage(tr.hdrDepthImage, 0);
R_CheckFBO(tr.hdrDepthFbo);
tr.screenSsaoFbo = FBO_Create("_screenssao", tr.screenSsaoImage->width, tr.screenSsaoImage->height);
FBO_Bind(tr.screenSsaoFbo);
FBO_AttachTextureImage(tr.screenSsaoImage, 0);
R_CheckFBO(tr.screenSsaoFbo);
}
if (tr.renderCubeImage)
{
tr.renderCubeFbo = FBO_Create("_renderCubeFbo", tr.renderCubeImage->width, tr.renderCubeImage->height);
FBO_Bind(tr.renderCubeFbo);
//FBO_AttachTextureImage(tr.renderCubeImage, 0);
R_AttachFBOTexture2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, tr.renderCubeImage->texnum, 0);
glState.currentFBO->colorImage[0] = tr.renderCubeImage;
FBO_CreateBuffer(tr.renderCubeFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_CheckFBO(tr.renderCubeFbo);
}
GL_CheckErrors();
FBO_Bind(NULL);
}
/*
* RFB_RegisterObject
*/
int RFB_RegisterObject( int width, int height, bool builtin, bool depthRB, bool stencilRB,
bool colorRB, int samples, bool useFloat, bool sRGB ) {
int i;
int format;
GLuint fbID;
GLuint rbID = 0;
r_fbo_t *fbo = NULL;
if( !r_frambuffer_objects_initialized ) {
return 0;
}
#ifdef GL_ES_VERSION_2_0
if( samples ) {
return 0;
}
#else
if( samples && !glConfig.ext.framebuffer_multisample ) {
return 0;
}
#endif
for( i = 0, fbo = r_framebuffer_objects; i < r_num_framebuffer_objects; i++, fbo++ ) {
if( !fbo->objectID ) {
// free slot
goto found;
}
}
if( i == MAX_FRAMEBUFFER_OBJECTS ) {
Com_Printf( S_COLOR_YELLOW "RFB_RegisterObject: framebuffer objects limit exceeded\n" );
return 0;
}
clamp_high( samples, glConfig.maxFramebufferSamples );
i = r_num_framebuffer_objects++;
fbo = r_framebuffer_objects + i;
found:
qglGenFramebuffersEXT( 1, &fbID );
memset( fbo, 0, sizeof( *fbo ) );
fbo->objectID = fbID;
if( builtin ) {
fbo->registrationSequence = -1;
} else {
fbo->registrationSequence = rsh.registrationSequence;
}
fbo->width = width;
fbo->height = height;
fbo->samples = samples;
fbo->sRGB = sRGB;
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fbo->objectID );
if( colorRB ) {
format = glConfig.forceRGBAFramebuffers ? GL_RGBA : GL_RGB;
if( useFloat ) {
format = glConfig.forceRGBAFramebuffers ? GL_RGBA16F_ARB : GL_RGB16F_ARB;
}
qglGenRenderbuffersEXT( 1, &rbID );
fbo->colorRenderBuffer = rbID;
qglBindRenderbufferEXT( GL_RENDERBUFFER_EXT, rbID );
#ifndef GL_ES_VERSION_2_0
if( samples ) {
qglRenderbufferStorageMultisampleEXT( GL_RENDERBUFFER_EXT, samples, format, width, height );
} else
#endif
qglRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, format, width, height );
}
#ifndef GL_ES_VERSION_2_0
else {
// until a color texture is attached, don't enable drawing to the buffer
qglDrawBuffer( GL_NONE );
qglReadBuffer( GL_NONE );
}
#endif
if( depthRB ) {
qglGenRenderbuffersEXT( 1, &rbID );
fbo->depthRenderBuffer = rbID;
qglBindRenderbufferEXT( GL_RENDERBUFFER_EXT, rbID );
if( stencilRB ) {
format = GL_DEPTH24_STENCIL8_EXT;
} else if( glConfig.ext.depth24 ) {
format = GL_DEPTH_COMPONENT24;
} else if( glConfig.ext.depth_nonlinear ) {
format = GL_DEPTH_COMPONENT16_NONLINEAR_NV;
} else {
format = GL_DEPTH_COMPONENT16;
}
#ifndef GL_ES_VERSION_2_0
if( samples ) {
qglRenderbufferStorageMultisampleEXT( GL_RENDERBUFFER_EXT, samples, format, width, height );
} else
#endif
qglRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, format, width, height );
if( stencilRB ) {
fbo->stencilRenderBuffer = rbID;
}
}
if( rbID ) {
qglBindRenderbufferEXT( GL_RENDERBUFFER_EXT, 0 );
}
if( fbo->colorRenderBuffer ) {
qglFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, fbo->colorRenderBuffer );
}
if( fbo->depthRenderBuffer ) {
qglFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, fbo->depthRenderBuffer );
}
if( fbo->stencilRenderBuffer ) {
qglFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, fbo->stencilRenderBuffer );
}
if( colorRB && depthRB ) {
if( !RFB_CheckObjectStatus() ) {
goto fail;
}
}
if( r_bound_framebuffer_objectID ) {
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, r_bound_framebuffer_object->objectID );
} else {
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 );
}
return i + 1;
fail:
RFB_DeleteObject( fbo );
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 );
return 0;
}
/*
* RFB_BlitObject
*
* The target FBO must be equal or greater in both dimentions than
* the currently bound FBO!
*/
void RFB_BlitObject( int src, int dest, int bitMask, int mode, int filter, int readAtt, int drawAtt ) {
int bits;
int destObj;
int dx, dy, dw, dh;
r_fbo_t scrfbo;
r_fbo_t *fbo;
r_fbo_t *destfbo;
if( !glConfig.ext.framebuffer_blit ) {
return;
}
assert( src >= 0 && src <= r_num_framebuffer_objects );
if( src < 0 || src > r_num_framebuffer_objects ) {
return;
}
if( src == 0 ) {
fbo = &scrfbo;
} else {
fbo = r_framebuffer_objects + src - 1;
}
assert( dest >= 0 && dest <= r_num_framebuffer_objects );
if( dest < 0 || dest > r_num_framebuffer_objects ) {
return;
}
if( dest ) {
destfbo = r_framebuffer_objects + dest - 1;
} else {
destfbo = NULL;
}
bits = bitMask;
if( !bits ) {
return;
}
RB_ApplyScissor();
if( src == 0 ) {
memset( fbo, 0, sizeof( *fbo ) );
fbo->width = glConfig.width;
fbo->height = glConfig.height;
}
if( destfbo ) {
dw = destfbo->width;
dh = destfbo->height;
destObj = destfbo->objectID;
} else {
dw = glConfig.width;
dh = glConfig.height;
destObj = 0;
}
switch( mode ) {
case FBO_COPY_CENTREPOS:
dx = ( dw - fbo->width ) / 2;
dy = ( dh - fbo->height ) / 2;
dw = fbo->width;
dh = fbo->height;
break;
case FBO_COPY_INVERT_Y:
dx = 0;
dy = dh - fbo->height;
dw = fbo->width;
dh = fbo->height;
break;
case FBO_COPY_NORMAL_DST_SIZE:
dx = 0;
dy = 0;
//dw = dw;
//dh = dh;
break;
default:
dx = 0;
dy = 0;
dw = fbo->width;
dh = fbo->height;
break;
}
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 );
qglBindFramebufferEXT( GL_READ_FRAMEBUFFER_EXT, fbo->objectID );
qglBindFramebufferEXT( GL_DRAW_FRAMEBUFFER_EXT, destObj );
#ifndef GL_ES_VERSION_2_0
if( src == 0 ) {
qglReadBuffer( GL_BACK );
qglDrawBuffer( GL_COLOR_ATTACHMENT0_EXT + drawAtt );
} else {
qglReadBuffer( GL_COLOR_ATTACHMENT0_EXT + readAtt );
qglDrawBuffer( GL_COLOR_ATTACHMENT0_EXT + drawAtt );
}
#endif
qglBlitFramebufferEXT( 0, 0, fbo->width, fbo->height, dx, dy, dx + dw, dy + dh, bits, filter );
qglBindFramebufferEXT( GL_READ_FRAMEBUFFER_EXT, 0 );
qglBindFramebufferEXT( GL_DRAW_FRAMEBUFFER_EXT, 0 );
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fbo->objectID );
#ifndef GL_ES_VERSION_2_0
if( src == 0 ) {
qglReadBuffer( GL_BACK );
qglDrawBuffer( GL_BACK );
} else {
qglReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
qglDrawBuffer( GL_COLOR_ATTACHMENT0_EXT );
}
#endif
assert( qglGetError() == GL_NO_ERROR );
}
/*
* RFB_AttachTextureToObject
*/
bool RFB_AttachTextureToObject( int object, bool depth, int target, image_t *texture ) {
r_fbo_t *fbo;
int attachment;
GLuint texnum = 0;
assert( object > 0 && object <= r_num_framebuffer_objects );
if( object <= 0 || object > r_num_framebuffer_objects ) {
return false;
}
if( target < 0 || target >= MAX_FRAMEBUFFER_COLOR_ATTACHMENTS ) {
return false;
}
if( target > 0 && !glConfig.ext.draw_buffers ) {
return false;
}
fbo = r_framebuffer_objects + object - 1;
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fbo->objectID );
bind:
if( depth ) {
attachment = GL_DEPTH_ATTACHMENT_EXT;
if( texture ) {
assert( texture->flags & IT_DEPTH );
texnum = texture->texnum;
texture->fbo = object;
}
} else {
#ifndef GL_ES_VERSION_2_0
const GLenum fboBuffers[8] = {
GL_COLOR_ATTACHMENT0_EXT,
GL_COLOR_ATTACHMENT1_EXT,
GL_COLOR_ATTACHMENT2_EXT,
GL_COLOR_ATTACHMENT3_EXT,
GL_COLOR_ATTACHMENT4_EXT,
GL_COLOR_ATTACHMENT5_EXT,
GL_COLOR_ATTACHMENT6_EXT,
GL_COLOR_ATTACHMENT7_EXT,
};
#endif
attachment = GL_COLOR_ATTACHMENT0_EXT + target;
#ifndef GL_ES_VERSION_2_0
if( target > 0 && texture ) {
qglDrawBuffersARB( target + 1, fboBuffers );
} else {
if( glConfig.ext.draw_buffers ) {
qglDrawBuffersARB( 0, fboBuffers );
}
qglDrawBuffer( GL_COLOR_ATTACHMENT0_EXT );
qglReadBuffer( GL_COLOR_ATTACHMENT0_EXT );
}
#endif
if( texture ) {
assert( !( texture->flags & IT_DEPTH ) );
texnum = texture->texnum;
texture->fbo = object;
}
}
// attach texture
qglFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, attachment, GL_TEXTURE_2D, texnum, 0 );
if( texture ) {
if( ( texture->flags & ( IT_DEPTH | IT_STENCIL ) ) == ( IT_DEPTH | IT_STENCIL ) ) {
qglFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_TEXTURE_2D, texnum, 0 );
}
}
else {
if( depth ) {
qglFramebufferTexture2DEXT( GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_TEXTURE_2D, texnum, 0 );
}
}
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, r_bound_framebuffer_objectID ? r_bound_framebuffer_object->objectID : 0 );
// check framebuffer status and unbind if failed
if( !RFB_CheckObjectStatus() ) {
if( texture ) {
texture = NULL;
goto bind;
}
return false;
}
if( depth ) {
fbo->depthTexture = texture;
} else {
fbo->colorTexture[target] = texture;
}
return true;
}
/*
* RFB_RegisterObject
*/
int RFB_RegisterObject( int width, int height, bool builtin, bool depthRB, bool stencilRB )
{
int i;
GLuint fbID;
GLuint rbID;
r_fbo_t *fbo;
if( !r_frambuffer_objects_initialized )
return 0;
for( i = 0, fbo = r_framebuffer_objects; i < r_num_framebuffer_objects; i++, fbo++ ) {
if( !fbo->objectID ) {
// free slot
goto found;
}
}
if( i == MAX_FRAMEBUFFER_OBJECTS )
{
Com_Printf( S_COLOR_YELLOW "RFB_RegisterObject: framebuffer objects limit exceeded\n" );
return 0;
}
i = r_num_framebuffer_objects++;
fbo = r_framebuffer_objects + i;
found:
qglGenFramebuffersEXT( 1, &fbID );
memset( fbo, 0, sizeof( *fbo ) );
fbo->objectID = fbID;
if( builtin )
fbo->registrationSequence = -1;
else
fbo->registrationSequence = rsh.registrationSequence;
fbo->width = width;
fbo->height = height;
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, fbo->objectID );
#ifndef GL_ES_VERSION_2_0
// until a color texture is attached, don't enable drawing to the buffer
qglDrawBuffer( GL_NONE );
qglReadBuffer( GL_NONE );
#endif
if( depthRB )
{
int format;
qglGenRenderbuffersEXT( 1, &rbID );
fbo->depthRenderBuffer = rbID;
qglBindRenderbufferEXT( GL_RENDERBUFFER_EXT, rbID );
if( stencilRB )
format = GL_DEPTH24_STENCIL8_EXT;
else if( glConfig.ext.depth24 )
format = GL_DEPTH_COMPONENT24;
else if( glConfig.ext.depth_nonlinear )
format = GL_DEPTH_COMPONENT16_NONLINEAR_NV;
else
format = GL_DEPTH_COMPONENT16;
qglRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, format, width, height );
qglFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, rbID );
if( stencilRB )
qglFramebufferRenderbufferEXT( GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, rbID );
qglBindRenderbufferEXT( GL_RENDERBUFFER_EXT, 0 );
}
if( r_bound_framebuffer_objectID )
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, r_bound_framebuffer_object->objectID );
else
qglBindFramebufferEXT( GL_FRAMEBUFFER_EXT, 0 );
return i+1;
}
