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-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_scan.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index 489423d7f12..4f85d2fda67 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -247,7 +247,14 @@ scan_declaration(struct tgsi_shader_info *info,
info->input_interpolate[reg] = (ubyte)fulldecl->Interp.Interpolate;
info->input_interpolate_loc[reg] = (ubyte)fulldecl->Interp.Location;
info->input_cylindrical_wrap[reg] = (ubyte)fulldecl->Interp.CylindricalWrap;
- info->num_inputs++;
+
+ /* Vertex shaders can have inputs with holes between them. */
+ if (info->processor == TGSI_PROCESSOR_VERTEX)
+ info->num_inputs = MAX2(info->num_inputs, reg + 1);
+ else {
+ info->num_inputs++;
+ assert(reg < info->num_inputs);
+ }
/* Only interpolated varyings. Don't include POSITION.
* Don't include integer varyings, because they are not
@@ -341,6 +348,7 @@ scan_declaration(struct tgsi_shader_info *info,
info->output_semantic_name[reg] = (ubyte) semName;
info->output_semantic_index[reg] = (ubyte) semIndex;
info->num_outputs++;
+ assert(reg < info->num_outputs);
if (semName == TGSI_SEMANTIC_COLOR)
info->colors_written |= 1 << semIndex;