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r300g: fix RGTC2_SNORM 

ATI engineers have probably chosen those sign bits by a dice roll.
This commit is contained in:
Marek Olšák 2011-03-01 05:16:34 +01:00
parent 66d5de74c4
commit ea4a19c392
2 changed files with 4 additions and 1 deletions
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3
src/gallium/drivers/r300/r300_state_derived.c
View File

@ -650,6 +650,9 @@ static uint32_t r300_get_border_color(enum pipe_format format,
util_pack_color(border_swizzled, PIPE_FORMAT_B4G4R4A4_UNORM, &uc);
return uc.ui;
case PIPE_FORMAT_RGTC2_SNORM:
border_swizzled[0] = border_swizzled[2];
util_pack_color(border_swizzled, PIPE_FORMAT_R8G8B8A8_SNORM, &uc);
return uc.ui;
case PIPE_FORMAT_RGTC2_UNORM:
util_pack_color(border_swizzled, PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
return uc.ui;

2
src/gallium/drivers/r300/r300_texture.c
View File

@ -213,7 +213,7 @@ uint32_t r300_translate_texformat(enum pipe_format format,
case PIPE_FORMAT_RGTC1_UNORM:
return R500_TX_FORMAT_ATI1N | result;
case PIPE_FORMAT_RGTC2_SNORM:
result |= sign_bit[0] | sign_bit[1];
result |= sign_bit[2] | sign_bit[3];
case PIPE_FORMAT_RGTC2_UNORM:
return R400_TX_FORMAT_ATI2N | result;
default: