KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mesa: Allow BlitFramebuffer from a texture. 

Although GL_EXT_framebuffer_blit does not mention textures, it doesn't
forbid them either, and some thirdparty driver appear to support this.
This commit is contained in:
José Fonseca 2009-09-19 14:33:35 +01:00
parent de685b37a9
commit fdd605e446
1 changed files with 44 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/mesa/state_tracker/st_cb_blit.c
View File

@ -39,6 +39,7 @@
#include "shader/prog_print.h"
#include "st_context.h"
#include "st_texture.h"
#include "st_program.h"
#include "st_cb_blit.h"
#include "st_cb_fbo.h"
@ -110,17 +111,50 @@ st_BlitFramebuffer(GLcontext *ctx,
}
if (mask & GL_COLOR_BUFFER_BIT) {
struct st_renderbuffer *srcRb =
st_renderbuffer(readFB->_ColorReadBuffer);
struct st_renderbuffer *dstRb =
st_renderbuffer(drawFB->_ColorDrawBuffers[0]);
struct pipe_surface *srcSurf = srcRb->surface;
struct pipe_surface *dstSurf = dstRb->surface;
struct gl_renderbuffer_attachment *srcAtt =
&readFB->Attachment[readFB->_ColorReadBufferIndex];
util_blit_pixels(st->blit,
srcSurf, srcX0, srcY0, srcX1, srcY1,
dstSurf, dstX0, dstY0, dstX1, dstY1,
0.0, pFilter);
if(srcAtt->Type == GL_TEXTURE) {
struct pipe_screen *screen = ctx->st->pipe->screen;
const struct st_texture_object *srcObj =
st_texture_object(srcAtt->Texture);
struct st_renderbuffer *dstRb =
st_renderbuffer(drawFB->_ColorDrawBuffers[0]);
struct pipe_surface *srcSurf;
struct pipe_surface *dstSurf = dstRb->surface;
if (!srcObj->pt)
return;
srcSurf = screen->get_tex_surface(screen,
srcObj->pt,
srcAtt->CubeMapFace,
srcAtt->TextureLevel,
srcAtt->Zoffset,
PIPE_BUFFER_USAGE_GPU_READ);
if(!srcSurf)
return;
util_blit_pixels(st->blit,
srcSurf, srcX0, srcY0, srcX1, srcY1,
dstSurf, dstX0, dstY0, dstX1, dstY1,
0.0, pFilter);
pipe_surface_reference(&srcSurf, NULL);
}
else {
struct st_renderbuffer *srcRb =
st_renderbuffer(readFB->_ColorReadBuffer);
struct st_renderbuffer *dstRb =
st_renderbuffer(drawFB->_ColorDrawBuffers[0]);
struct pipe_surface *srcSurf = srcRb->surface;
struct pipe_surface *dstSurf = dstRb->surface;
util_blit_pixels(st->blit,
srcSurf, srcX0, srcY0, srcX1, srcY1,
dstSurf, dstX0, dstY0, dstX1, dstY1,
0.0, pFilter);
}
}
if (mask & depthStencil) {