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iris: draw indirect support?

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This commit is contained in:
Kenneth Graunke
2018-07-14 22:15:39 -07:00
parent b030671298
commit 44ba48eba7
1 changed files with 48 additions and 1 deletions
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src/gallium/drivers/iris/iris_state.c
+48 -1
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@@ -3139,7 +3139,52 @@ iris_upload_render_state(struct iris_context *ice,
// XXX: Gen8 - PMA fix
assert(!draw->indirect); // XXX: indirect support
#define _3DPRIM_END_OFFSET 0x2420
#define _3DPRIM_START_VERTEX 0x2430
#define _3DPRIM_VERTEX_COUNT 0x2434
#define _3DPRIM_INSTANCE_COUNT 0x2438
#define _3DPRIM_START_INSTANCE 0x243C
#define _3DPRIM_BASE_VERTEX 0x2440
if (draw->indirect) {
/* We don't support this MultidrawIndirect. */
assert(!draw->indirect->indirect_draw_count);
struct iris_bo *bo = iris_resource_bo(draw->indirect->buffer);
assert(bo);
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_MEM), lrm) {
lrm.RegisterAddress = _3DPRIM_VERTEX_COUNT;
lrm.MemoryAddress = ro_bo(bo, draw->indirect->offset + 0);
}
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_MEM), lrm) {
lrm.RegisterAddress = _3DPRIM_INSTANCE_COUNT;
lrm.MemoryAddress = ro_bo(bo, draw->indirect->offset + 4);
}
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_MEM), lrm) {
lrm.RegisterAddress = _3DPRIM_START_VERTEX;
lrm.MemoryAddress = ro_bo(bo, draw->indirect->offset + 8);
}
if (draw->index_size) {
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_MEM), lrm) {
lrm.RegisterAddress = _3DPRIM_BASE_VERTEX;
lrm.MemoryAddress = ro_bo(bo, draw->indirect->offset + 12);
}
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_MEM), lrm) {
lrm.RegisterAddress = _3DPRIM_START_INSTANCE;
lrm.MemoryAddress = ro_bo(bo, draw->indirect->offset + 16);
}
} else {
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_MEM), lrm) {
lrm.RegisterAddress = _3DPRIM_START_INSTANCE;
lrm.MemoryAddress = ro_bo(bo, draw->indirect->offset + 12);
}
iris_emit_cmd(batch, GENX(MI_LOAD_REGISTER_IMM), lri) {
lri.RegisterOffset = _3DPRIM_BASE_VERTEX;
lri.DataDWord = 0;
}
}
}
iris_emit_cmd(batch, GENX(3DPRIMITIVE), prim) {
prim.StartInstanceLocation = draw->start_instance;
@@ -3150,6 +3195,8 @@ iris_upload_render_state(struct iris_context *ice,
// XXX: this is probably bonkers.
prim.StartVertexLocation = draw->start;
prim.IndirectParameterEnable = draw->indirect != NULL;
if (draw->index_size) {
prim.BaseVertexLocation += draw->index_bias;
} else {