diff options
| author | Nicolai Hähnle <[email protected]> | 2017-04-12 11:01:19 +0200 |
|---|---|---|
| committer | Nicolai Hähnle <[email protected]> | 2017-04-13 17:31:11 +0200 |
| commit | 4f7e3fbb50f06ab523594a7ee4693b1a95c0e66a (patch) | |
| tree | 0bc81842e95535939c26a3d8f45c6f99177aba15 /src/gallium/drivers/radeonsi/si_shader.h | |
| parent | 472c84d1ad0ae9d3e7dbe469ae04e2efe65143fa (diff) | |
radeonsi: fix gl_BaseVertex in non-indexed draws
gl_BaseVertex is supposed to be 0 in non-indexed draws. Unfortunately, the
way they're implemented, the VGT always generates indices starting at 0,
and the VS prolog adds the start index.
There's a VGT_INDX_OFFSET register which causes the VGT to start at a
driver-defined index. However, this register cannot be written from
indirect draws.
So fix this unlikely case by setting a bit to tell the VS whether the
draw is indexed or not, so that gl_BaseVertex can be adjusted accordingly
when used.
Fixes a bug in
KHR-GL45.shader_draw_parameters_tests.ShaderMultiDrawArraysParameters.*
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_shader.h')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.h b/src/gallium/drivers/radeonsi/si_shader.h index fdb0dd482bc..f145eab14f3 100644 --- a/src/gallium/drivers/radeonsi/si_shader.h +++ b/src/gallium/drivers/radeonsi/si_shader.h @@ -220,6 +220,8 @@ enum { /* Clamp vertex color output (only used in VS as VS). */ #define S_VS_STATE_CLAMP_VERTEX_COLOR(x) (((unsigned)(x) & 0x1) << 0) #define C_VS_STATE_CLAMP_VERTEX_COLOR 0xFFFFFFFE +#define S_VS_STATE_INDEXED(x) (((unsigned)(x) & 0x1) << 1) +#define C_VS_STATE_INDEXED 0xFFFFFFFD #define S_VS_STATE_LS_OUT_PATCH_SIZE(x) (((unsigned)(x) & 0x1FFF) << 8) #define C_VS_STATE_LS_OUT_PATCH_SIZE 0xFFE000FF #define S_VS_STATE_LS_OUT_VERTEX_SIZE(x) (((unsigned)(x) & 0xFF) << 24) |