diff options
| author | Cooper Yuan <cooperyuan@gmail.com> | 2009-08-09 12:18:40 +0800 |
|---|---|---|
| committer | Cooper Yuan <cooperyuan@gmail.com> | 2009-08-09 12:18:40 +0800 |
| commit | b2927a620409e49f26592e8f4bde6911e29de3f3 (patch) | |
| tree | b69e04107b95a770a9a383ba5a6617afbcc49c56 /src | |
| parent | 483a7916d1c93d1edf125dc671dcfbff42a9fc5e (diff) | |
r600: load per-pixel position into PS in order to use fragment.position.
This patch can fix /progs/fp/tri-depth, tri-depth2, tri-depthwrite,
tri-depthwrite2 and point-position.
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/r600/r700_fragprog.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_fragprog.c b/src/mesa/drivers/dri/r600/r700_fragprog.c index f382686be4..f3dd7b6db1 100644 --- a/src/mesa/drivers/dri/r600/r700_fragprog.c +++ b/src/mesa/drivers/dri/r600/r700_fragprog.c @@ -55,6 +55,12 @@ void Map_Fragment_Program(r700_AssemblerBase *pAsm, //Input mapping : mesa_fp->Base.InputsRead set the flag, set in //The flags parsed in parse_attrib_binding. FRAG_ATTRIB_COLx, FRAG_ATTRIB_TEXx, ... //MUST match order in Map_Vertex_Output + unBit = 1 << FRAG_ATTRIB_WPOS; + if(mesa_fp->Base.InputsRead & unBit) + { + pAsm->uiFP_AttributeMap[FRAG_ATTRIB_WPOS] = pAsm->number_used_registers++; + } + unBit = 1 << FRAG_ATTRIB_COL0; if(mesa_fp->Base.InputsRead & unBit) { @@ -337,6 +343,14 @@ GLboolean r700SetupFragmentProgram(GLcontext * ctx) CLEARbit(r700->DB_SHADER_CONTROL.u32All, Z_EXPORT_ENABLE_bit); } + /* PS uses fragment.position */ + if (mesa_fp->Base.InputsRead & (1 << FRAG_ATTRIB_WPOS)) + { + SETbit(r700->SPI_PS_IN_CONTROL_0.u32All, POSITION_ENA_bit); + SetField(r700->SPI_PS_IN_CONTROL_0.u32All, CENTERS_ONLY, BARYC_SAMPLE_CNTL_shift, BARYC_SAMPLE_CNTL_mask); + SETbit(r700->SPI_INPUT_Z.u32All, PROVIDE_Z_TO_SPI_bit); + } + /* sent out shader constants. */ paramList = fp->mesa_program.Base.Parameters; @@ -367,6 +381,19 @@ GLboolean r700SetupFragmentProgram(GLcontext * ctx) } // emit ps input map + unBit = 1 << FRAG_ATTRIB_WPOS; + if(mesa_fp->Base.InputsRead & unBit) + { + ui = pAsm->uiFP_AttributeMap[FRAG_ATTRIB_WPOS]; + SETbit(r700->SPI_PS_INPUT_CNTL[ui].u32All, SEL_CENTROID_bit); + SETfield(r700->SPI_PS_INPUT_CNTL[ui].u32All, ui, + SEMANTIC_shift, SEMANTIC_mask); + if (r700->SPI_INTERP_CONTROL_0.u32All & FLAT_SHADE_ENA_bit) + SETbit(r700->SPI_PS_INPUT_CNTL[ui].u32All, FLAT_SHADE_bit); + else + CLEARbit(r700->SPI_PS_INPUT_CNTL[ui].u32All, FLAT_SHADE_bit); + } + unBit = 1 << FRAG_ATTRIB_COL0; if(mesa_fp->Base.InputsRead & unBit) { |