fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-09 04:38:03 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

i965: code to setup a constant buffer sampler

Browse source 
This code won't actually be used and will be removed in a subsequent commit.
Just committing for posterity.
This commit is contained in:
Brian Paul 2009-03-31 16:56:55 -06:00
parent a9c62a2340
commit 8c093a1fb0
1 changed files with 43 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

43
src/mesa/drivers/dri/i965/brw_wm_sampler_state.c
View file

@ -217,6 +217,45 @@ static void brw_update_sampler_state(struct wm_sampler_entry *key,
sampler->ss2.default_color_pointer = sdc_bo->offset >> 5; /* reloc */
}
#if 0
/**
* Setup the sampler state for the "constant buffer texture".
* The constant buffer texture is basically a 1D float[4] texture whose
* width == the number of program parameters/constants.
*/
static void
brwm_wm_setup_constant_sampler(struct brw_context *brw,
struct wm_sampler_key *key)
{
static const GLfloat black[4] = {0.0F, 0.0F, 0.0F, 0.0F};
const GLuint unit = BRW_MAX_TEX_UNIT - 1;
struct wm_sampler_entry *entry = &key->sampler[unit];
entry->tex_target = GL_TEXTURE_1D;
entry->wrap_r = GL_CLAMP_TO_EDGE;
entry->wrap_s = GL_CLAMP_TO_EDGE;
entry->wrap_t = GL_CLAMP_TO_EDGE;
entry->maxlod = 0.0F;
entry->minlod = 0.0F;
entry->lod_bias = 0.0F;
entry->max_aniso = 0.0F;
entry->minfilter = GL_NEAREST;
entry->magfilter = GL_NEAREST;
entry->comparemode = GL_NONE;
entry->comparefunc = GL_ALWAYS;
dri_bo_unreference(brw->wm.sdc_bo[unit]);
brw->wm.sdc_bo[unit] = upload_default_color(brw, black);
key->sampler_count = unit + 1;
}
#endif
/** Sets up the cache key for sampler state for all texture units */
static void
brw_wm_sampler_populate_key(struct brw_context *brw,
@ -271,6 +310,10 @@ brw_wm_sampler_populate_key(struct brw_context *brw,
key->sampler_count = unit + 1;
}
}
#if 0
brwm_wm_setup_constant_sampler(brw, key);
#endif
}
/* All samplers must be uploaded in a single contiguous array, which