From cd41833b440a1fee14feca17485de4cc460a86c8 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Thu, 7 Feb 2013 04:33:52 +0100 Subject: gallium: add red-alpha texture formats and a couple of util functions This is for glGetTexImage and it will be used for samplers only (which some drivers already implement by reading util_format_description). v2: incorporate Brian's suggestion Reviewed-by: Brian Paul --- src/gallium/auxiliary/util/u_format.csv | 12 ++++ src/gallium/auxiliary/util/u_format.h | 117 ++++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+) (limited to 'src/gallium/auxiliary/util') diff --git a/src/gallium/auxiliary/util/u_format.csv b/src/gallium/auxiliary/util/u_format.csv index 1d274076b0f..f3925bb3ca2 100644 --- a/src/gallium/auxiliary/util/u_format.csv +++ b/src/gallium/auxiliary/util/u_format.csv @@ -360,3 +360,15 @@ PIPE_FORMAT_R16G16B16X16_SINT , plain, 1, 1, sp16, sp16, sp16, x16, xyz1, PIPE_FORMAT_R32G32B32X32_FLOAT , plain, 1, 1, f32, f32, f32, x32, xyz1, rgb PIPE_FORMAT_R32G32B32X32_UINT , plain, 1, 1, up32, up32, up32, x32, xyz1, rgb PIPE_FORMAT_R32G32B32X32_SINT , plain, 1, 1, sp32, sp32, sp32, x32, xyz1, rgb + +PIPE_FORMAT_R8A8_SNORM , plain, 1, 1, sn8 , sn8 , , , x00y, rgb +PIPE_FORMAT_R16A16_UNORM , plain, 1, 1, un16 , un16 , , , x00y, rgb +PIPE_FORMAT_R16A16_SNORM , plain, 1, 1, sn16 , sn16 , , , x00y, rgb +PIPE_FORMAT_R16A16_FLOAT , plain, 1, 1, f16 , f16 , , , x00y, rgb +PIPE_FORMAT_R32A32_FLOAT , plain, 1, 1, f32 , f32 , , , x00y, rgb +PIPE_FORMAT_R8A8_UINT , plain, 1, 1, up8 , up8 , , , x00y, rgb +PIPE_FORMAT_R8A8_SINT , plain, 1, 1, sp8 , sp8 , , , x00y, rgb +PIPE_FORMAT_R16A16_UINT , plain, 1, 1, up16 , up16 , , , x00y, rgb +PIPE_FORMAT_R16A16_SINT , plain, 1, 1, sp16 , sp16 , , , x00y, rgb +PIPE_FORMAT_R32A32_UINT , plain, 1, 1, up32 , up32 , , , x00y, rgb +PIPE_FORMAT_R32A32_SINT , plain, 1, 1, sp32 , sp32 , , , x00y, rgb diff --git a/src/gallium/auxiliary/util/u_format.h b/src/gallium/auxiliary/util/u_format.h index 63015dd50c1..00301265db8 100644 --- a/src/gallium/auxiliary/util/u_format.h +++ b/src/gallium/auxiliary/util/u_format.h @@ -887,6 +887,123 @@ util_format_stencil_only(enum pipe_format format) } } +/** + * Converts PIPE_FORMAT_*I* to PIPE_FORMAT_*R*. + * This is identity for non-intensity formats. + */ +static INLINE enum pipe_format +util_format_intensity_to_red(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_I8_UNORM: + return PIPE_FORMAT_R8_UNORM; + case PIPE_FORMAT_I8_SNORM: + return PIPE_FORMAT_R8_SNORM; + case PIPE_FORMAT_I16_UNORM: + return PIPE_FORMAT_R16_UNORM; + case PIPE_FORMAT_I16_SNORM: + return PIPE_FORMAT_R16_SNORM; + case PIPE_FORMAT_I16_FLOAT: + return PIPE_FORMAT_R16_FLOAT; + case PIPE_FORMAT_I32_FLOAT: + return PIPE_FORMAT_R32_FLOAT; + case PIPE_FORMAT_I8_UINT: + return PIPE_FORMAT_R8_UINT; + case PIPE_FORMAT_I8_SINT: + return PIPE_FORMAT_R8_SINT; + case PIPE_FORMAT_I16_UINT: + return PIPE_FORMAT_R16_UINT; + case PIPE_FORMAT_I16_SINT: + return PIPE_FORMAT_R16_SINT; + case PIPE_FORMAT_I32_UINT: + return PIPE_FORMAT_R32_UINT; + case PIPE_FORMAT_I32_SINT: + return PIPE_FORMAT_R32_SINT; + default: + assert(!util_format_is_intensity(format)); + return format; + } +} + +/** + * Converts PIPE_FORMAT_*L* to PIPE_FORMAT_*R*. + * This is identity for non-luminance formats. + */ +static INLINE enum pipe_format +util_format_luminance_to_red(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_L8_UNORM: + return PIPE_FORMAT_R8_UNORM; + case PIPE_FORMAT_L8_SNORM: + return PIPE_FORMAT_R8_SNORM; + case PIPE_FORMAT_L16_UNORM: + return PIPE_FORMAT_R16_UNORM; + case PIPE_FORMAT_L16_SNORM: + return PIPE_FORMAT_R16_SNORM; + case PIPE_FORMAT_L16_FLOAT: + return PIPE_FORMAT_R16_FLOAT; + case PIPE_FORMAT_L32_FLOAT: + return PIPE_FORMAT_R32_FLOAT; + case PIPE_FORMAT_L8_UINT: + return PIPE_FORMAT_R8_UINT; + case PIPE_FORMAT_L8_SINT: + return PIPE_FORMAT_R8_SINT; + case PIPE_FORMAT_L16_UINT: + return PIPE_FORMAT_R16_UINT; + case PIPE_FORMAT_L16_SINT: + return PIPE_FORMAT_R16_SINT; + case PIPE_FORMAT_L32_UINT: + return PIPE_FORMAT_R32_UINT; + case PIPE_FORMAT_L32_SINT: + return PIPE_FORMAT_R32_SINT; + + case PIPE_FORMAT_LATC1_UNORM: + return PIPE_FORMAT_RGTC1_UNORM; + case PIPE_FORMAT_LATC1_SNORM: + return PIPE_FORMAT_RGTC1_SNORM; + + case PIPE_FORMAT_L4A4_UNORM: + /* XXX A4R4 is defined as x00y in u_format.csv */ + return PIPE_FORMAT_A4R4_UNORM; + + case PIPE_FORMAT_L8A8_UNORM: + return PIPE_FORMAT_R8A8_UNORM; + case PIPE_FORMAT_L8A8_SNORM: + return PIPE_FORMAT_R8A8_SNORM; + case PIPE_FORMAT_L16A16_UNORM: + return PIPE_FORMAT_R16A16_UNORM; + case PIPE_FORMAT_L16A16_SNORM: + return PIPE_FORMAT_R16A16_SNORM; + case PIPE_FORMAT_L16A16_FLOAT: + return PIPE_FORMAT_R16A16_FLOAT; + case PIPE_FORMAT_L32A32_FLOAT: + return PIPE_FORMAT_R32A32_FLOAT; + case PIPE_FORMAT_L8A8_UINT: + return PIPE_FORMAT_R8A8_UINT; + case PIPE_FORMAT_L8A8_SINT: + return PIPE_FORMAT_R8A8_SINT; + case PIPE_FORMAT_L16A16_UINT: + return PIPE_FORMAT_R16A16_UINT; + case PIPE_FORMAT_L16A16_SINT: + return PIPE_FORMAT_R16A16_SINT; + case PIPE_FORMAT_L32A32_UINT: + return PIPE_FORMAT_R32A32_UINT; + case PIPE_FORMAT_L32A32_SINT: + return PIPE_FORMAT_R32A32_SINT; + + /* We don't have compressed red-alpha variants for these. */ + case PIPE_FORMAT_LATC2_UNORM: + case PIPE_FORMAT_LATC2_SNORM: + return PIPE_FORMAT_NONE; + + default: + assert(!util_format_is_luminance(format) && + !util_format_is_luminance_alpha(format)); + return format; + } +} + /** * Return the number of components stored. * Formats with block size != 1x1 will always have 1 component (the block). -- cgit v1.2.3