diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_wm.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c index a0758d2527f..7eccbcb07e1 100644 --- a/src/mesa/drivers/dri/i965/brw_wm.c +++ b/src/mesa/drivers/dri/i965/brw_wm.c @@ -317,6 +317,20 @@ brw_wm_debug_recompile(struct brw_context *brw, } } +static uint8_t +gen6_gather_workaround(GLenum internalformat) +{ + switch (internalformat) { + case GL_R8I: return WA_SIGN | WA_8BIT; + case GL_R8UI: return WA_8BIT; + case GL_R16I: return WA_SIGN | WA_16BIT; + case GL_R16UI: return WA_16BIT; + /* note that even though GL_R32I and GL_R32UI have format overrides + * in the surface state, there is no shader w/a required */ + default: return 0; + } +} + void brw_populate_sampler_prog_key_data(struct gl_context *ctx, const struct gl_program *prog, @@ -372,6 +386,13 @@ brw_populate_sampler_prog_key_data(struct gl_context *ctx, key->gather_channel_quirk_mask |= 1 << s; } + /* Gen6's gather4 is broken for UINT/SINT; we treat them as + * UNORM/FLOAT instead and fix it in the shader. + */ + if (brw->gen == 6 && prog->UsesGather) { + key->gen6_gather_wa[s] = gen6_gather_workaround(img->InternalFormat); + } + /* If this is a multisample sampler, and uses the CMS MSAA layout, * then we need to emit slightly different code to first sample the * MCS surface. |