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tgsi/scan: set correct input limits for geometry shader

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TGSI geometry shader input declerations are of the IN[][2] format
and the dimensions of the array have to be deduced from the input
primitive property.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Zack Rusin 2013-04-20 00:02:00 -07:00
parent 913ed25f18
commit 76587d2e5e
1 changed files with 17 additions and 0 deletions
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17
src/gallium/auxiliary/tgsi/tgsi_scan.c
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@ -36,6 +36,7 @@
#include "util/u_debug.h"
#include "util/u_math.h"
#include "util/u_prim.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_util.h"
#include "tgsi/tgsi_scan.h"
@ -261,6 +262,22 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS:
info->color0_writes_all_cbufs = info->properties[i].data[0];
break;
case TGSI_PROPERTY_GS_INPUT_PRIM:
/* The dimensions of the IN decleration in geometry shader have
* to be deduced from the type of the input primitive.
*/
if (procType == TGSI_PROCESSOR_GEOMETRY) {
unsigned input_primitive = info->properties[i].data[0];
int num_verts = u_vertices_per_prim(input_primitive);
unsigned j;
info->file_count[TGSI_FILE_INPUT] = num_verts;
info->file_max[TGSI_FILE_INPUT] =
MAX2(info->file_max[TGSI_FILE_INPUT], num_verts - 1);
for (j = 0; j < num_verts; ++j) {
info->file_mask[TGSI_FILE_INPUT] |= (1 << j);
}
}
break;
default:
;
}