diff options
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_shader.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 0ca07ab4ee5..5c7deeb250e 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -136,18 +136,22 @@ unsigned si_shader_io_get_unique_index(unsigned semantic_name, unsigned index) switch (semantic_name) { case TGSI_SEMANTIC_POSITION: return 0; - case TGSI_SEMANTIC_PSIZE: - return 1; - case TGSI_SEMANTIC_CLIPDIST: - assert(index <= 1); - return 2 + index; case TGSI_SEMANTIC_GENERIC: + /* Since some shader stages use the the highest used IO index + * to determine the size to allocate for inputs/outputs + * (in LDS, tess and GS rings). GENERIC should be placed right + * after POSITION to make that size as small as possible. + */ if (index < SI_MAX_IO_GENERIC) - return 4 + index; + return 1 + index; assert(!"invalid generic index"); return 0; - + case TGSI_SEMANTIC_PSIZE: + return SI_MAX_IO_GENERIC + 1; + case TGSI_SEMANTIC_CLIPDIST: + assert(index <= 1); + return SI_MAX_IO_GENERIC + 2 + index; case TGSI_SEMANTIC_FOG: return SI_MAX_IO_GENERIC + 4; case TGSI_SEMANTIC_LAYER: |