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authorNeil Roberts <[email protected]>2018-01-25 19:15:41 +0100
committerIan Romanick <[email protected]>2018-04-19 15:57:45 -0700
commitc4f30a9100bfba7800162bdef267743a2419ec19 (patch)
tree876a7bb8b042cdee72951a051d8589065fa86e81 /src/intel/vulkan
parentc32e1035cb4f1e0c2c1bd45611e3a35e7caf57b6 (diff)
spirv: Lower BaseVertex to FIRST_VERTEX instead of BASE_VERTEX
The base vertex in Vulkan is different from GL in that for non-indexed primitives the value is taken from the firstVertex parameter instead of being set to zero. This coincides with the new SYSTEM_VALUE_FIRST_VERTEX instead of BASE_VERTEX. v2 (idr): Add comment describing why SYSTEM_VALUE_FIRST_VERTEX is used for SpvBuiltInBaseVertex. Suggested by Jason. Reviewed-by: Ian Romanick <[email protected]> [v1] Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/intel/vulkan')
-rw-r--r--src/intel/vulkan/genX_cmd_buffer.c16
-rw-r--r--src/intel/vulkan/genX_pipeline.c2
2 files changed, 14 insertions, 4 deletions
diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index cbe623802e9..be4e9a69426 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -2673,7 +2673,9 @@ void genX(CmdDraw)(
genX(cmd_buffer_flush_state)(cmd_buffer);
- if (vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance)
+ if (vs_prog_data->uses_firstvertex ||
+ vs_prog_data->uses_basevertex ||
+ vs_prog_data->uses_baseinstance)
emit_base_vertex_instance(cmd_buffer, firstVertex, firstInstance);
if (vs_prog_data->uses_drawid)
emit_draw_index(cmd_buffer, 0);
@@ -2711,7 +2713,9 @@ void genX(CmdDrawIndexed)(
genX(cmd_buffer_flush_state)(cmd_buffer);
- if (vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance)
+ if (vs_prog_data->uses_firstvertex ||
+ vs_prog_data->uses_basevertex ||
+ vs_prog_data->uses_baseinstance)
emit_base_vertex_instance(cmd_buffer, vertexOffset, firstInstance);
if (vs_prog_data->uses_drawid)
emit_draw_index(cmd_buffer, 0);
@@ -2850,7 +2854,9 @@ void genX(CmdDrawIndirect)(
struct anv_bo *bo = buffer->bo;
uint32_t bo_offset = buffer->offset + offset;
- if (vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance)
+ if (vs_prog_data->uses_firstvertex ||
+ vs_prog_data->uses_basevertex ||
+ vs_prog_data->uses_baseinstance)
emit_base_vertex_instance_bo(cmd_buffer, bo, bo_offset + 8);
if (vs_prog_data->uses_drawid)
emit_draw_index(cmd_buffer, i);
@@ -2889,7 +2895,9 @@ void genX(CmdDrawIndexedIndirect)(
uint32_t bo_offset = buffer->offset + offset;
/* TODO: We need to stomp base vertex to 0 somehow */
- if (vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance)
+ if (vs_prog_data->uses_firstvertex ||
+ vs_prog_data->uses_basevertex ||
+ vs_prog_data->uses_baseinstance)
emit_base_vertex_instance_bo(cmd_buffer, bo, bo_offset + 12);
if (vs_prog_data->uses_drawid)
emit_draw_index(cmd_buffer, i);
diff --git a/src/intel/vulkan/genX_pipeline.c b/src/intel/vulkan/genX_pipeline.c
index eb2d4147357..a473f42c7e1 100644
--- a/src/intel/vulkan/genX_pipeline.c
+++ b/src/intel/vulkan/genX_pipeline.c
@@ -98,6 +98,7 @@ emit_vertex_input(struct anv_pipeline *pipeline,
const bool needs_svgs_elem = vs_prog_data->uses_vertexid ||
vs_prog_data->uses_instanceid ||
vs_prog_data->uses_basevertex ||
+ vs_prog_data->uses_firstvertex ||
vs_prog_data->uses_baseinstance;
uint32_t elem_count = __builtin_popcount(elements) -
@@ -178,6 +179,7 @@ emit_vertex_input(struct anv_pipeline *pipeline,
* well. Just do all or nothing.
*/
uint32_t base_ctrl = (vs_prog_data->uses_basevertex ||
+ vs_prog_data->uses_firstvertex ||
vs_prog_data->uses_baseinstance) ?
VFCOMP_STORE_SRC : VFCOMP_STORE_0;