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tgsi/scan: add interpolation info into tgsi_shader_info

Browse source 
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2015-09-28 21:44:54 +02:00
parent 6b0f21cb28
commit 55d406b71e
2 changed files with 101 additions and 3 deletions
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91
src/gallium/auxiliary/tgsi/tgsi_scan.c
View file

@ -116,6 +116,53 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
break;
}
if (fullinst->Instruction.Opcode == TGSI_OPCODE_INTERP_CENTROID ||
fullinst->Instruction.Opcode == TGSI_OPCODE_INTERP_OFFSET ||
fullinst->Instruction.Opcode == TGSI_OPCODE_INTERP_SAMPLE) {
struct tgsi_full_src_register *src0 = &fullinst->Src[0];
unsigned input;
if (src0->Register.Indirect && src0->Indirect.ArrayID)
input = info->input_array_first[src0->Indirect.ArrayID];
else
input = src0->Register.Index;
/* For the INTERP opcodes, the interpolation is always
* PERSPECTIVE unless LINEAR is specified.
*/
switch (info->input_interpolate[input]) {
case TGSI_INTERPOLATE_COLOR:
case TGSI_INTERPOLATE_CONSTANT:
case TGSI_INTERPOLATE_PERSPECTIVE:
switch (fullinst->Instruction.Opcode) {
case TGSI_OPCODE_INTERP_CENTROID:
info->uses_persp_opcode_interp_centroid = true;
break;
case TGSI_OPCODE_INTERP_OFFSET:
info->uses_persp_opcode_interp_offset = true;
break;
case TGSI_OPCODE_INTERP_SAMPLE:
info->uses_persp_opcode_interp_sample = true;
break;
}
break;
case TGSI_INTERPOLATE_LINEAR:
switch (fullinst->Instruction.Opcode) {
case TGSI_OPCODE_INTERP_CENTROID:
info->uses_linear_opcode_interp_centroid = true;
break;
case TGSI_OPCODE_INTERP_OFFSET:
info->uses_linear_opcode_interp_offset = true;
break;
case TGSI_OPCODE_INTERP_SAMPLE:
info->uses_linear_opcode_interp_sample = true;
break;
}
break;
}
}
if (fullinst->Instruction.Opcode >= TGSI_OPCODE_F2D &&
fullinst->Instruction.Opcode <= TGSI_OPCODE_DSSG)
info->uses_doubles = true;
@ -236,8 +283,48 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
info->input_cylindrical_wrap[reg] = (ubyte)fulldecl->Interp.CylindricalWrap;
info->num_inputs++;
if (fulldecl->Interp.Location == TGSI_INTERPOLATE_LOC_CENTROID)
info->uses_centroid = TRUE;
/* Only interpolated varyings. Don't include POSITION.
* Don't include integer varyings, because they are not
* interpolated.
*/
if (semName == TGSI_SEMANTIC_GENERIC ||
semName == TGSI_SEMANTIC_TEXCOORD ||
semName == TGSI_SEMANTIC_COLOR ||
semName == TGSI_SEMANTIC_BCOLOR ||
semName == TGSI_SEMANTIC_FOG ||
semName == TGSI_SEMANTIC_CLIPDIST ||
semName == TGSI_SEMANTIC_CULLDIST) {
switch (fulldecl->Interp.Interpolate) {
case TGSI_INTERPOLATE_COLOR:
case TGSI_INTERPOLATE_PERSPECTIVE:
switch (fulldecl->Interp.Location) {
case TGSI_INTERPOLATE_LOC_CENTER:
info->uses_persp_center = true;
break;
case TGSI_INTERPOLATE_LOC_CENTROID:
info->uses_persp_centroid = true;
break;
case TGSI_INTERPOLATE_LOC_SAMPLE:
info->uses_persp_sample = true;
break;
}
break;
case TGSI_INTERPOLATE_LINEAR:
switch (fulldecl->Interp.Location) {
case TGSI_INTERPOLATE_LOC_CENTER:
info->uses_linear_center = true;
break;
case TGSI_INTERPOLATE_LOC_CENTROID:
info->uses_linear_centroid = true;
break;
case TGSI_INTERPOLATE_LOC_SAMPLE:
info->uses_linear_sample = true;
break;
}
break;
/* TGSI_INTERPOLATE_CONSTANT doesn't do any interpolation. */
}
}
if (semName == TGSI_SEMANTIC_PRIMID)
info->uses_primid = TRUE;

13
src/gallium/auxiliary/tgsi/tgsi_scan.h
View file

@ -82,7 +82,18 @@ struct tgsi_shader_info
boolean writes_stencil; /**< does fragment shader write stencil value? */
boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
boolean uses_kill; /**< KILL or KILL_IF instruction used? */
boolean uses_centroid;
boolean uses_persp_center;
boolean uses_persp_centroid;
boolean uses_persp_sample;
boolean uses_linear_center;
boolean uses_linear_centroid;
boolean uses_linear_sample;
boolean uses_persp_opcode_interp_centroid;
boolean uses_persp_opcode_interp_offset;
boolean uses_persp_opcode_interp_sample;
boolean uses_linear_opcode_interp_centroid;
boolean uses_linear_opcode_interp_offset;
boolean uses_linear_opcode_interp_sample;
boolean uses_instanceid;
boolean uses_vertexid;
boolean uses_vertexid_nobase;