From e75bce026c33ba670fd3146076fc2a2cf00f4371 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sat, 2 Oct 2010 21:42:22 +0200 Subject: [PATCH] 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. --- src/gallium/drivers/r300/r300_texture.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c index 2d8431dbb80..a084bdff11c 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: -- 2.30.2