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r600g: Implement BPTC texture support 

Requires Evergreen/Cayman

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Glenn Kennard 2014-08-13 13:02:53 +02:00 committed by Marek Olšák
parent 221d9c3e9c
commit f23ee74791
3 changed files with 26 additions and 2 deletions
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2
docs/GL3.txt
View File

@ -131,7 +131,7 @@ GL 4.1, GLSL 4.10:
GL 4.2, GLSL 4.20:
GL_ARB_texture_compression_bptc DONE (i965, nvc0)
GL_ARB_texture_compression_bptc DONE (i965, nvc0, r600)
GL_ARB_compressed_texture_pixel_storage DONE (all drivers)
GL_ARB_shader_atomic_counters DONE (i965)
GL_ARB_texture_storage DONE (all drivers)

2
docs/relnotes/10.3.html
View File

@ -64,7 +64,7 @@ Note: some of the new features are only available with certain drivers.
<li>GL_ARB_gpu_shader5 on nvc0</li>
<li>A new software rasterizer driver (kms_swrast_dri.so) that works with
DRM drivers that don't have a full-fledged GEM (such as qxl or simpledrm)</li>
<li>GL_ARB_texture_compression_bptc on i965/gen7+, nvc0</li>
<li>GL_ARB_texture_compression_bptc on i965/gen7+, nvc0, r600/evergreen+</li>
<li>Distribute the Khronos GL/glcorearb.h header file.
</ul>

24
src/gallium/drivers/r600/r600_state_common.c
View File

@ -1971,6 +1971,30 @@ uint32_t r600_translate_texformat(struct pipe_screen *screen,
}
}
if (desc->layout == UTIL_FORMAT_LAYOUT_BPTC) {
if (!enable_s3tc)
goto out_unknown;
if (rscreen->b.chip_class < EVERGREEN)
goto out_unknown;
switch (format) {
case PIPE_FORMAT_BPTC_RGBA_UNORM:
case PIPE_FORMAT_BPTC_SRGBA:
result = FMT_BC7;
is_srgb_valid = TRUE;
goto out_word4;
case PIPE_FORMAT_BPTC_RGB_FLOAT:
word4 |= sign_bit[0] | sign_bit[1] | sign_bit[2];
/* fall through */
case PIPE_FORMAT_BPTC_RGB_UFLOAT:
result = FMT_BC6;
goto out_word4;
default:
goto out_unknown;
}
}
if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED) {
switch (format) {
case PIPE_FORMAT_R8G8_B8G8_UNORM: