diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_dump.c | 3 | ||||
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_scan.c | 8 | ||||
| -rw-r--r-- | src/gallium/auxiliary/tgsi/tgsi_scan.h | 1 | ||||
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 6 | ||||
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_fs_exec.c | 12 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_defines.h | 3 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_shader_tokens.h | 3 |
7 files changed, 28 insertions, 8 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_dump.c b/src/gallium/auxiliary/tgsi/tgsi_dump.c index 9b61797ace9..77bde86684e 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_dump.c +++ b/src/gallium/auxiliary/tgsi/tgsi_dump.c @@ -126,7 +126,8 @@ static const char *semantic_names[] = "FACE", "EDGEFLAG", "PRIM_ID", - "INSTANCEID" + "INSTANCEID", + "STENCIL" }; static const char *immediate_type_names[] = diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c index 90198a4f604..538274887b9 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_scan.c +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c @@ -157,9 +157,11 @@ tgsi_scan_shader(const struct tgsi_token *tokens, /* extra info for special outputs */ if (procType == TGSI_PROCESSOR_FRAGMENT && - fulldecl->Semantic.Name == TGSI_SEMANTIC_POSITION) { - info->writes_z = TRUE; - } + fulldecl->Semantic.Name == TGSI_SEMANTIC_POSITION) + info->writes_z = TRUE; + if (procType == TGSI_PROCESSOR_FRAGMENT && + fulldecl->Semantic.Name == TGSI_SEMANTIC_STENCIL) + info->writes_stencil = TRUE; if (procType == TGSI_PROCESSOR_VERTEX && fulldecl->Semantic.Name == TGSI_SEMANTIC_EDGEFLAG) { info->writes_edgeflag = TRUE; diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h index f8aa90cf065..374c7ed551d 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_scan.h +++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h @@ -60,6 +60,7 @@ struct tgsi_shader_info uint opcode_count[TGSI_OPCODE_LAST]; /**< opcode histogram */ boolean writes_z; /**< does fragment shader write Z value? */ + boolean writes_stencil; /**< does fragment shader write stencil value? */ boolean writes_edgeflag; /**< vertex shader outputs edgeflag */ boolean uses_kill; /**< KIL or KILP instruction used? */ diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 9e02d43ab74..c767680c62a 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1415,6 +1415,12 @@ Edge flags are used to control which lines or points are actually drawn when the polygon mode converts triangles/quads/polygons into points or lines. +TGSI_SEMANTIC_STENCIL +"""""""""""""""""""""" + +For fragment shaders, this semantic label indicates than an output +is a writable stencil reference value. Only the Y component is writable. +This allows the fragment shader to change the fragments stencilref value. Properties diff --git a/src/gallium/drivers/softpipe/sp_fs_exec.c b/src/gallium/drivers/softpipe/sp_fs_exec.c index 67e2c8f8bc4..346e1b402ba 100644 --- a/src/gallium/drivers/softpipe/sp_fs_exec.c +++ b/src/gallium/drivers/softpipe/sp_fs_exec.c @@ -158,9 +158,17 @@ exec_run( const struct sp_fragment_shader *base, case TGSI_SEMANTIC_POSITION: { uint j; - for (j = 0; j < 4; j++) { + + for (j = 0; j < 4; j++) quad->output.depth[j] = machine->Outputs[i].xyzw[2].f[j]; - } + } + break; + case TGSI_SEMANTIC_STENCIL: + { + uint j; + + for (j = 0; j < 4; j++) + quad->output.stencil[j] = (unsigned)machine->Outputs[i].xyzw[1].f[j]; } break; } diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 8b4663742fa..b6894c09e82 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -464,7 +464,8 @@ enum pipe_cap { PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER, PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER, - PIPE_CAP_DEPTH_CLAMP + PIPE_CAP_DEPTH_CLAMP, + PIPE_CAP_SHADER_STENCIL_EXPORT, }; /* Shader caps not specific to any single stage */ diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h index 74488de17eb..ba433b2bd2a 100644 --- a/src/gallium/include/pipe/p_shader_tokens.h +++ b/src/gallium/include/pipe/p_shader_tokens.h @@ -143,7 +143,8 @@ struct tgsi_declaration_dimension #define TGSI_SEMANTIC_EDGEFLAG 8 #define TGSI_SEMANTIC_PRIMID 9 #define TGSI_SEMANTIC_INSTANCEID 10 -#define TGSI_SEMANTIC_COUNT 11 /**< number of semantic values */ +#define TGSI_SEMANTIC_STENCIL 11 +#define TGSI_SEMANTIC_COUNT 12 /**< number of semantic values */ struct tgsi_declaration_semantic { |