diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-08-26 10:59:18 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-09-02 10:47:45 +0100 |
| commit | 2083a276eb270b748d1c2668eb9faa5aadc8e700 (patch) | |
| tree | fa03d01ecdba21bab656cf5e9f274ee2b0db7f83 /src/gallium/include | |
| parent | 49e24d3b8c0129e11fcc94b6e74dc2589d64c882 (diff) | |
tgsi: add support for texture offsets to the TGSI IR. (v2)
This adds tokens for texture offsets, to store 4 * swizzled vec 3
for use in TXF and other opcodes.
It also contains TGSI exec changes for softpipe to use this code,
along with GLSL->TGSI support for TXF.
v2: add some more comments, add back padding I removed.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'src/gallium/include')
| -rw-r--r-- | src/gallium/include/pipe/p_shader_tokens.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h index d3a3632654..72d3139562 100644 --- a/src/gallium/include/pipe/p_shader_tokens.h +++ b/src/gallium/include/pipe/p_shader_tokens.h @@ -401,6 +401,8 @@ struct tgsi_instruction * If tgsi_instruction::Label is TRUE, tgsi_instruction_label follows. * * If tgsi_instruction::Texture is TRUE, tgsi_instruction_texture follows. + * if texture instruction has a number of offsets, + * then tgsi_instruction::Texture::NumOffset of tgsi_texture_offset follow. * * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow. * @@ -437,7 +439,23 @@ struct tgsi_instruction_label struct tgsi_instruction_texture { unsigned Texture : 8; /* TGSI_TEXTURE_ */ - unsigned Padding : 24; + unsigned NumOffsets : 4; + unsigned Padding : 20; +}; + +/* for texture offsets in GLSL and DirectX. + * Generally these always come from TGSI_FILE_IMMEDIATE, + * however DX11 appears to have the capability to do + * non-constant texture offsets. + */ +struct tgsi_texture_offset +{ + int Index : 16; + unsigned File : 4; /**< one of TGSI_FILE_x */ + unsigned SwizzleX : 2; /* TGSI_SWIZZLE_x */ + unsigned SwizzleY : 2; /* TGSI_SWIZZLE_x */ + unsigned SwizzleZ : 2; /* TGSI_SWIZZLE_x */ + unsigned Padding : 6; }; /* |