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draw: setup instance ID for VS interpreter

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This commit is contained in:
Brian Paul 2010-12-08 19:00:32 -07:00
parent 691048a22a
commit 0be042cb4d
1 changed files with 6 additions and 0 deletions
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6
src/gallium/auxiliary/draw/draw_vs_exec.c
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@ -99,6 +99,12 @@ vs_exec_run_linear( struct draw_vertex_shader *shader,
tgsi_exec_set_constant_buffers(machine, PIPE_MAX_CONSTANT_BUFFERS,
constants, const_size);
if (shader->info.uses_instanceid) {
unsigned i = machine->SysSemanticToIndex[TGSI_SEMANTIC_INSTANCEID];
assert(i < Elements(machine->SystemValue));
machine->SystemValue[i][0] = shader->draw->instance_id;
}
for (i = 0; i < count; i += MAX_TGSI_VERTICES) {
unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i);