diff options
| author | Sisinty Sasmita Patra <[email protected]> | 2014-12-12 13:03:21 -0800 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2015-01-26 17:29:35 -0800 |
| commit | 90bd943f2abafd5e3ea29ab8397fd4682ef74170 (patch) | |
| tree | bdc65b26aeb1d1c8e1adc78496c7d89e44a72663 /src/mesa/drivers/dri/i965/intel_tex.h | |
| parent | b52959c6022509514deb672e53c710069eed0237 (diff) | |
i965: Implemente a tiled fast-path for glReadPixels and glGetTexImage
Added intel_readpixels_tiled_mempcpy and intel_gettexsubimage_tiled_mempcpy
functions. These are the fast paths for glReadPixels and glGetTexImage.
On chrome, using the RoboHornet 2D Canvas toDataURL test, this patch cuts
amount of time spent in glReadPixels by more than half and reduces the time
of the entire test by 10%.
v2: Jason Ekstrand <[email protected]>
- Refactor to make the functions look more like the old
intel_tex_subimage_tiled_memcpy
- Don't export the readpixels_tiled_memcpy function
- Fix some pointer arithmatic bugs in partial image downloads (using
ReadPixels with a non-zero x or y offset)
- Fix a bug when ReadPixels is performed on an FBO wrapping a texture
miplevel other than zero.
v3: Jason Ekstrand <[email protected]>
- Better documentation fot the *_tiled_memcpy functions
- Add target restrictions for renderbuffers wrapping textures
v4: Jason Ekstrand <[email protected]>
- Only check the return value of brw_bo_map for error and not bo->virtual
v5: Jason Ekstrand <[email protected]>
- Don't unnecessarily repeat a comment
Signed-off-by: Jason Ekstrand <[email protected]>
Reviewed-by: Chad Versace <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_tex.h')
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_tex.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_tex.h b/src/mesa/drivers/dri/i965/intel_tex.h index 27f7f1135bd..f048e846d55 100644 --- a/src/mesa/drivers/dri/i965/intel_tex.h +++ b/src/mesa/drivers/dri/i965/intel_tex.h @@ -68,4 +68,13 @@ intel_texsubimage_tiled_memcpy(struct gl_context *ctx, const struct gl_pixelstore_attrib *packing, bool for_glTexImage); +bool +intel_gettexsubimage_tiled_memcpy(struct gl_context *ctx, + struct gl_texture_image *texImage, + GLint xoffset, GLint yofset, + GLsizei width, GLsizei height, + GLenum format, GLenum type, + GLvoid *pixels, + const struct gl_pixelstore_attrib *packing); + #endif |