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authorMarek Olšák <maraeo@gmail.com>2010-10-02 21:42:22 +0200
committerMarek Olšák <maraeo@gmail.com>2010-10-02 21:42:22 +0200
commite75bce026c33ba670fd3146076fc2a2cf00f4371 (patch)
tree65b6bc464358a49e22683f7eb10956e26c3f9a46 /src/gallium/drivers
parent71a079fb4ecbd17703ac9b5e6d5ef622fd7bc50f (diff)
r300g: add support for R8G8 colorbuffers
The hw swizzles have been obtained by a brute force approach, and only C0 and C2 are stored in UV88, the other channels are ignored. R16G16 is going to be a lot trickier.
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r--src/gallium/drivers/r300/r300_texture.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c
index 2d8431dbb8..a084bdff11 100644
--- a/src/gallium/drivers/r300/r300_texture.c
+++ b/src/gallium/drivers/r300/r300_texture.c
@@ -369,6 +369,10 @@ static uint32_t r300_translate_colorformat(enum pipe_format format)
return R300_COLOR_FORMAT_I8;
/* 16-bit buffers. */
+ case PIPE_FORMAT_R8G8_UNORM:
+ case PIPE_FORMAT_R8G8_SNORM:
+ return R300_COLOR_FORMAT_UV88;
+
case PIPE_FORMAT_B5G6R5_UNORM:
return R300_COLOR_FORMAT_RGB565;
@@ -488,7 +492,7 @@ static uint32_t r300_translate_out_fmt(enum pipe_format format)
/* Add swizzles and return. */
switch (format) {
- /* 8-bit outputs.
+ /* 8-bit outputs, one channel.
* COLORFORMAT_I8 stores the C2 component. */
case PIPE_FORMAT_A8_UNORM:
return modifier | R300_C2_SEL_A;
@@ -498,6 +502,12 @@ static uint32_t r300_translate_out_fmt(enum pipe_format format)
case PIPE_FORMAT_R8_SNORM:
return modifier | R300_C2_SEL_R;
+ /* 16-bit outputs, two channels.
+ * COLORFORMAT_UV88 stores C2 and C0. */
+ case PIPE_FORMAT_R8G8_UNORM:
+ case PIPE_FORMAT_R8G8_SNORM:
+ return modifier | R300_C0_SEL_G | R300_C2_SEL_R;
+
/* BGRA outputs. */
case PIPE_FORMAT_B5G6R5_UNORM:
case PIPE_FORMAT_B5G5R5A1_UNORM: