/*
* R_BlitTextureToScrFbo
*/
static void R_BlitTextureToScrFbo( const refdef_t *fd, image_t *image, int dstFbo,
int program_type, const vec4_t color, int blendMask )
{
int x, y;
int w, h;
RB_BindFrameBufferObject( dstFbo );
if( !dstFbo ) {
// default framebuffer
// set the viewport to full resolution
// but keep the scissoring region
x = fd->x;
y = fd->y;
w = fd->width;
h = fd->height;
RB_Viewport( 0, 0, glConfig.width, glConfig.height );
RB_Scissor( rn.scissor[0], rn.scissor[1], rn.scissor[2], rn.scissor[3] );
}
else {
// aux framebuffer
// set the viewport to full resolution of the framebuffer
// set scissor to default framebuffer resolution
x = 0;
y = 0;
w = rf.frameBufferWidth;
h = rf.frameBufferHeight;
RB_Viewport( 0, 0, w, h );
RB_Scissor( 0, 0, glConfig.width, glConfig.height );
}
// blit + flip
R_DrawStretchQuick( x, y,
w, h,
(float)(x)/image->upload_width, 1.0 - (float)(y)/image->upload_height,
(float)(x+w)/image->upload_width, 1.0 - (float)(y+h)/image->upload_height,
color, program_type, image, blendMask );
// restore 2D viewport and scissor
RB_Viewport( 0, 0, rf.frameBufferWidth, rf.frameBufferHeight );
RB_Scissor( 0, 0, rf.frameBufferWidth, rf.frameBufferHeight );
}
/*
* R_BlitTextureToScrFbo
*/
static void R_BlitTextureToScrFbo( const refdef_t *fd, image_t *image, int dstFbo,
int program_type, const vec4_t color, int blendMask, int numShaderImages, image_t **shaderImages )
{
int x, y;
int w, h, fw, fh;
static char s_name[] = "$builtinpostprocessing";
static shaderpass_t p;
static shader_t s;
int i;
static tcmod_t tcmod;
mat4_t m;
assert( rsh.postProcessingVBO );
// blit + flip using a static mesh to avoid redundant buffer uploads
// (also using custom PP effects like FXAA with the stream VBO causes
// Adreno to mark the VBO as "slow" (due to some weird bug)
// for the rest of the frame and drop FPS to 10-20).
RB_FlushDynamicMeshes();
RB_BindFrameBufferObject( dstFbo );
if( !dstFbo ) {
// default framebuffer
// set the viewport to full resolution
// but keep the scissoring region
x = fd->x;
y = fd->y;
w = fw = fd->width;
h = fh = fd->height;
RB_Viewport( 0, 0, glConfig.width, glConfig.height );
RB_Scissor( rn.scissor[0], rn.scissor[1], rn.scissor[2], rn.scissor[3] );
}
else {
// aux framebuffer
// set the viewport to full resolution of the framebuffer (without the NPOT padding if there's one)
// draw quad on the whole framebuffer texture
// set scissor to default framebuffer resolution
image_t *cb = RFB_GetObjectTextureAttachment( dstFbo, false );
x = 0;
y = 0;
w = fw = rf.frameBufferWidth;
h = fh = rf.frameBufferHeight;
if( cb ) {
fw = cb->upload_width;
fh = cb->upload_height;
}
RB_Viewport( 0, 0, w, h );
RB_Scissor( 0, 0, glConfig.width, glConfig.height );
}
s.vattribs = VATTRIB_POSITION_BIT|VATTRIB_TEXCOORDS_BIT;
s.sort = SHADER_SORT_NEAREST;
s.numpasses = 1;
s.name = s_name;
s.passes = &p;
p.rgbgen.type = RGB_GEN_IDENTITY;
p.alphagen.type = ALPHA_GEN_IDENTITY;
p.tcgen = TC_GEN_NONE;
p.images[0] = image;
for( i = 0; i < numShaderImages; i++ )
p.images[i + 1] = shaderImages[i];
p.flags = blendMask;
p.program_type = program_type;
if( !dstFbo ) {
tcmod.type = TC_MOD_TRANSFORM;
tcmod.args[0] = ( float )( w ) / ( float )( image->upload_width );
tcmod.args[1] = ( float )( h ) / ( float )( image->upload_height );
tcmod.args[4] = ( float )( x ) / ( float )( image->upload_width );
tcmod.args[5] = ( float )( image->upload_height - h - y ) / ( float )( image->upload_height );
p.numtcmods = 1;
p.tcmods = &tcmod;
}
else {
p.numtcmods = 0;
}
Matrix4_Identity( m );
Matrix4_Scale2D( m, fw, fh );
Matrix4_Translate2D( m, x, y );
RB_LoadObjectMatrix( m );
RB_BindShader( NULL, &s, NULL );
RB_BindVBO( rsh.postProcessingVBO->index, GL_TRIANGLES );
RB_DrawElements( 0, 4, 0, 6, 0, 0, 0, 0 );
RB_LoadObjectMatrix( mat4x4_identity );
// restore 2D viewport and scissor
RB_Viewport( 0, 0, rf.frameBufferWidth, rf.frameBufferHeight );
RB_Scissor( 0, 0, rf.frameBufferWidth, rf.frameBufferHeight );
}
