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authorRob Clark <[email protected]>2015-11-17 12:35:09 -0500
committerRob Clark <[email protected]>2015-11-18 14:31:13 -0500
commit4671c13852f3bb6341e4a6d4030948399e711e56 (patch)
treeb4a54a87377ce7c0d070234eb165727432055c25 /src/gallium/drivers/freedreno/a4xx/fd4_format.c
parent2379cc9fe03911133037616fd1d3576c5acc3a96 (diff)
freedreno/a4xx: add fake RGTC support (required for GL3)
The a4xx bits corresponding to 'freedreno/a3xx: add fake RGTC support (required for GL3)' TODO some more r/e.. maybe we get lucky and hw supports some of this directly? For now this will help us enable gl3. Signed-off-by: Rob Clark <[email protected]>
Diffstat (limited to 'src/gallium/drivers/freedreno/a4xx/fd4_format.c')
-rw-r--r--src/gallium/drivers/freedreno/a4xx/fd4_format.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_format.c b/src/gallium/drivers/freedreno/a4xx/fd4_format.c
index 7ff3c8cb196..087d04f3c74 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_format.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_format.c
@@ -274,6 +274,16 @@ static struct fd4_format formats[PIPE_FORMAT_COUNT] = {
_T(DXT3_SRGBA, DXT3, NONE, WZYX),
_T(DXT5_RGBA, DXT5, NONE, WZYX),
_T(DXT5_SRGBA, DXT5, NONE, WZYX),
+
+ /* faked */
+ _T(RGTC1_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
+ _T(RGTC1_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
+ _T(RGTC2_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
+ _T(RGTC2_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
+ _T(LATC1_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
+ _T(LATC1_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
+ _T(LATC2_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
+ _T(LATC2_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
};
/* convert pipe format to vertex buffer format: */
@@ -316,6 +326,8 @@ fd4_pipe2fetchsize(enum pipe_format format)
{
if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
format = PIPE_FORMAT_Z32_FLOAT;
+ else if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
+ format = PIPE_FORMAT_R8G8B8A8_UNORM;
switch (util_format_get_blocksizebits(format) / util_format_get_blockwidth(format)) {
case 8: return TFETCH4_1_BYTE;
@@ -331,6 +343,14 @@ fd4_pipe2fetchsize(enum pipe_format format)
}
}
+unsigned
+fd4_pipe2nblocksx(enum pipe_format format, unsigned width)
+{
+ if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
+ format = PIPE_FORMAT_R8G8B8A8_UNORM;
+ return util_format_get_nblocksx(format, width);
+}
+
/* we need to special case a bit the depth/stencil restore, because we are
* using the texture sampler to blit into the depth/stencil buffer, *not*
* into a color buffer. Otherwise fd4_tex_swiz() will do the wrong thing,