void FBO_FastBlit(FBO_t *src, ivec4_t srcBox, FBO_t *dst, ivec4_t dstBox, int buffers, int filter)
{
ivec4_t srcBoxFinal, dstBoxFinal;
GLuint srcFb, dstFb;
if (!glRefConfig.framebufferBlit)
{
FBO_Blit(src, srcBox, NULL, dst, dstBox, NULL, NULL, 0);
return;
}
// get to a neutral state first
//FBO_Bind(NULL);
srcFb = src ? src->frameBuffer : 0;
dstFb = dst ? dst->frameBuffer : 0;
if (!srcBox)
{
if (src)
{
VectorSet4(srcBoxFinal, 0, 0, src->width, src->height);
}
else
{
VectorSet4(srcBoxFinal, 0, 0, glConfig.vidWidth, glConfig.vidHeight);
}
}
else
{
VectorSet4(srcBoxFinal, srcBox[0], srcBox[1], srcBox[0] + srcBox[2], srcBox[1] + srcBox[3]);
}
if (!dstBox)
{
if (dst)
{
VectorSet4(dstBoxFinal, 0, 0, dst->width, dst->height);
}
else
{
VectorSet4(dstBoxFinal, 0, 0, glConfig.vidWidth, glConfig.vidHeight);
}
}
else
{
VectorSet4(dstBoxFinal, dstBox[0], dstBox[1], dstBox[0] + dstBox[2], dstBox[1] + dstBox[3]);
}
GL_BindFramebuffer(GL_READ_FRAMEBUFFER_EXT, srcFb);
GL_BindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, dstFb);
qglBlitFramebufferEXT(srcBoxFinal[0], srcBoxFinal[1], srcBoxFinal[2], srcBoxFinal[3],
dstBoxFinal[0], dstBoxFinal[1], dstBoxFinal[2], dstBoxFinal[3],
buffers, filter);
GL_BindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
glState.currentFBO = NULL;
}
void FBO_FastBlit(FBO_t *src, ivec4_t srcBox, FBO_t *dst, ivec4_t dstBox, int buffers, int filter)
{
ivec4_t srcBoxFinal, dstBoxFinal;
GLuint srcFb, dstFb;
if (!glRefConfig.framebufferBlit)
{
FBO_Blit(src, srcBox, NULL, dst, dstBox, NULL, NULL, 0);
return;
}
srcFb = src ? src->frameBuffer : 0;
dstFb = dst ? dst->frameBuffer : 0;
if (!srcBox)
{
int width = src ? src->width : glConfig.vidWidth;
int height = src ? src->height : glConfig.vidHeight;
VectorSet4(srcBoxFinal, 0, 0, width, height);
}
else
{
VectorSet4(srcBoxFinal, srcBox[0], srcBox[1], srcBox[0] + srcBox[2], srcBox[1] + srcBox[3]);
}
if (!dstBox)
{
int width = dst ? dst->width : glConfig.vidWidth;
int height = dst ? dst->height : glConfig.vidHeight;
VectorSet4(dstBoxFinal, 0, 0, width, height);
}
else
{
VectorSet4(dstBoxFinal, dstBox[0], dstBox[1], dstBox[0] + dstBox[2], dstBox[1] + dstBox[3]);
}
GL_BindFramebuffer(GL_READ_FRAMEBUFFER, srcFb);
GL_BindFramebuffer(GL_DRAW_FRAMEBUFFER, dstFb);
qglBlitFramebuffer(srcBoxFinal[0], srcBoxFinal[1], srcBoxFinal[2], srcBoxFinal[3],
dstBoxFinal[0], dstBoxFinal[1], dstBoxFinal[2], dstBoxFinal[3],
buffers, filter);
GL_BindFramebuffer(GL_FRAMEBUFFER, 0);
glState.currentFBO = NULL;
}
/*
============
FBO_Bind
============
*/
void FBO_Bind(FBO_t * fbo)
{
if (glState.currentFBO == fbo)
return;
if (r_logFile->integer)
{
// don't just call LogComment, or we will get a call to va() every frame!
GLimp_LogComment(va("--- FBO_Bind( %s ) ---\n", fbo ? fbo->name : "NULL"));
}
GL_BindFramebuffer(GL_FRAMEBUFFER_EXT, fbo ? fbo->frameBuffer : 0);
glState.currentFBO = fbo;
}
/*
============
FBO_Bind
============
*/
void FBO_Bind(FBO_t * fbo)
{
if (!glRefConfig.framebufferObject)
{
ri.Printf(PRINT_WARNING, "FBO_Bind() called without framebuffers enabled!\n");
return;
}
if (glState.currentFBO == fbo)
return;
if (r_logFile->integer)
{
// don't just call LogComment, or we will get a call to va() every frame!
GLimp_LogComment(va("--- FBO_Bind( %s ) ---\n", fbo ? fbo->name : "NULL"));
}
GL_BindFramebuffer(GL_FRAMEBUFFER, fbo ? fbo->frameBuffer : 0);
glState.currentFBO = fbo;
}
GLvoid APIENTRY GLDSA_NamedFramebufferRenderbuffer(GLuint framebuffer,
GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)
{
GL_BindFramebuffer(GL_FRAMEBUFFER_EXT, framebuffer);
qglFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, attachment, renderbuffertarget, renderbuffer);
}
GLvoid APIENTRY GLDSA_NamedFramebufferTexture2D(GLuint framebuffer,
GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
GL_BindFramebuffer(GL_FRAMEBUFFER_EXT, framebuffer);
qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, attachment, textarget, texture, level);
}
GLenum APIENTRY GLDSA_CheckNamedFramebufferStatus(GLuint framebuffer, GLenum target)
{
GL_BindFramebuffer(target, framebuffer);
return qglCheckFramebufferStatusEXT(target);
}
/*
============
FBO_Init
============
*/
void FBO_Init(void)
{
int i;
int hdrFormat, multisample = 0;
ri.Printf(PRINT_ALL, "------- FBO_Init -------\n");
if(!glRefConfig.framebufferObject)
return;
tr.numFBOs = 0;
GL_CheckErrors();
R_IssuePendingRenderCommands();
hdrFormat = GL_RGBA8;
if (r_hdr->integer && glRefConfig.textureFloat)
hdrFormat = GL_RGBA16F_ARB;
if (glRefConfig.framebufferMultisample)
qglGetIntegerv(GL_MAX_SAMPLES, &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_CreateBuffer(tr.renderFbo, hdrFormat, 0, multisample);
FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24, 0, multisample);
R_CheckFBO(tr.renderFbo);
tr.msaaResolveFbo = FBO_Create("_msaaResolve", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_AttachImage(tr.msaaResolveFbo, tr.renderImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.msaaResolveFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.msaaResolveFbo);
}
else if (r_hdr->integer)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_AttachImage(tr.renderFbo, tr.renderImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.renderFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.renderFbo);
}
// clear render buffer
// this fixes the corrupt screen bug with r_hdr 1 on older hardware
if (tr.renderFbo)
{
GL_BindFramebuffer(GL_FRAMEBUFFER, tr.renderFbo->frameBuffer);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
if (tr.screenScratchImage)
{
tr.screenScratchFbo = FBO_Create("screenScratch", tr.screenScratchImage->width, tr.screenScratchImage->height);
FBO_AttachImage(tr.screenScratchFbo, tr.screenScratchImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.screenScratchFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.screenScratchFbo);
}
if (tr.sunRaysImage)
{
tr.sunRaysFbo = FBO_Create("_sunRays", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_AttachImage(tr.sunRaysFbo, tr.sunRaysImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.sunRaysFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.sunRaysFbo);
}
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);
// FIXME: this next line wastes 16mb with 16x512x512 sun shadow maps, skip if OpenGL 4.3+ or ARB_framebuffer_no_attachments
FBO_CreateBuffer(tr.pshadowFbos[i], GL_RGBA8, 0, 0);
FBO_AttachImage(tr.pshadowFbos[i], tr.pshadowMaps[i], GL_DEPTH_ATTACHMENT, 0);
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);
// FIXME: this next line wastes 16mb with 4x1024x1024 sun shadow maps, skip if OpenGL 4.3+ or ARB_framebuffer_no_attachments
// This at least gets sun shadows working on older GPUs (Intel)
FBO_CreateBuffer(tr.sunShadowFbo[i], GL_RGBA8, 0, 0);
FBO_AttachImage(tr.sunShadowFbo[i], tr.sunShadowDepthImage[i], GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.sunShadowFbo[i]);
}
}
if (tr.screenShadowImage)
{
tr.screenShadowFbo = FBO_Create("_screenshadow", tr.screenShadowImage->width, tr.screenShadowImage->height);
FBO_AttachImage(tr.screenShadowFbo, tr.screenShadowImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.screenShadowFbo);
}
if (tr.textureScratchImage[0])
{
for (i = 0; i < 2; i++)
{
tr.textureScratchFbo[i] = FBO_Create(va("_texturescratch%d", i), tr.textureScratchImage[i]->width, tr.textureScratchImage[i]->height);
FBO_AttachImage(tr.textureScratchFbo[i], tr.textureScratchImage[i], GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.textureScratchFbo[i]);
}
}
if (tr.calcLevelsImage)
{
tr.calcLevelsFbo = FBO_Create("_calclevels", tr.calcLevelsImage->width, tr.calcLevelsImage->height);
FBO_AttachImage(tr.calcLevelsFbo, tr.calcLevelsImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.calcLevelsFbo);
}
if (tr.targetLevelsImage)
{
tr.targetLevelsFbo = FBO_Create("_targetlevels", tr.targetLevelsImage->width, tr.targetLevelsImage->height);
FBO_AttachImage(tr.targetLevelsFbo, tr.targetLevelsImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.targetLevelsFbo);
}
if (tr.quarterImage[0])
{
for (i = 0; i < 2; i++)
{
tr.quarterFbo[i] = FBO_Create(va("_quarter%d", i), tr.quarterImage[i]->width, tr.quarterImage[i]->height);
FBO_AttachImage(tr.quarterFbo[i], tr.quarterImage[i], GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.quarterFbo[i]);
}
}
if (tr.hdrDepthImage)
{
tr.hdrDepthFbo = FBO_Create("_hdrDepth", tr.hdrDepthImage->width, tr.hdrDepthImage->height);
FBO_AttachImage(tr.hdrDepthFbo, tr.hdrDepthImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.hdrDepthFbo);
}
if (tr.screenSsaoImage)
{
tr.screenSsaoFbo = FBO_Create("_screenssao", tr.screenSsaoImage->width, tr.screenSsaoImage->height);
FBO_AttachImage(tr.screenSsaoFbo, tr.screenSsaoImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.screenSsaoFbo);
}
if (tr.renderCubeImage)
{
tr.renderCubeFbo = FBO_Create("_renderCubeFbo", tr.renderCubeImage->width, tr.renderCubeImage->height);
FBO_AttachImage(tr.renderCubeFbo, tr.renderCubeImage, GL_COLOR_ATTACHMENT0, 0);
FBO_CreateBuffer(tr.renderCubeFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_CheckFBO(tr.renderCubeFbo);
}
GL_CheckErrors();
GL_BindFramebuffer(GL_FRAMEBUFFER, 0);
glState.currentFBO = NULL;
}
