#include "brw_state.h"
#include "brw_defines.h"
-#include "macros.h"
+#include "main/macros.h"
}
}
-
-static GLuint U_FIXED(GLfloat value, GLuint frac_bits)
-{
- value *= (1<<frac_bits);
- return value < 0 ? 0 : value;
-}
-
-static GLint S_FIXED(GLfloat value, GLuint frac_bits)
-{
- return value * (1<<frac_bits);
-}
-
-
-static dri_bo *upload_default_color( struct brw_context *brw,
+static drm_intel_bo *upload_default_color( struct brw_context *brw,
const GLfloat *color )
{
struct brw_sampler_default_color sdc;
COPY_4V(sdc.color, color);
- return brw_cache_data( &brw->cache, BRW_SAMPLER_DEFAULT_COLOR, &sdc,
- NULL, 0 );
+ return brw_cache_data(&brw->cache, BRW_SAMPLER_DEFAULT_COLOR,
+ &sdc, sizeof(sdc));
}
int sampler_count;
struct wm_sampler_entry {
+ GLenum tex_target;
GLenum wrap_r, wrap_s, wrap_t;
float maxlod, minlod;
float lod_bias;
float max_aniso;
GLenum minfilter, magfilter;
GLenum comparemode, comparefunc;
- dri_bo *sdc_bo;
+
+ /** If target is cubemap, take context setting.
+ */
+ GLboolean seamless_cube_map;
} sampler[BRW_MAX_TEX_UNIT];
};
* Sets the sampler state for a single unit based off of the sampler key
* entry.
*/
-static void brw_update_sampler_state(struct wm_sampler_entry *key,
- dri_bo *sdc_bo,
+static void brw_update_sampler_state(struct brw_context *brw,
+ struct wm_sampler_entry *key,
+ drm_intel_bo *sdc_bo,
struct brw_sampler_state *sampler)
{
- _mesa_memset(sampler, 0, sizeof(*sampler));
+ struct intel_context *intel = &brw->intel;
+
+ memset(sampler, 0, sizeof(*sampler));
switch (key->minfilter) {
case GL_NEAREST:
sampler->ss0.mag_filter = BRW_MAPFILTER_ANISOTROPIC;
if (key->max_aniso > 2.0) {
- sampler->ss3.max_aniso = MAX2((key->max_aniso - 2) / 2,
+ sampler->ss3.max_aniso = MIN2((key->max_aniso - 2) / 2,
BRW_ANISORATIO_16);
}
}
sampler->ss1.s_wrap_mode = translate_wrap_mode(key->wrap_s);
sampler->ss1.t_wrap_mode = translate_wrap_mode(key->wrap_t);
- /* Fulsim complains if I don't do this. Hardware doesn't mind:
+ if (intel->gen >= 6 &&
+ sampler->ss0.min_filter != sampler->ss0.mag_filter)
+ sampler->ss0.min_mag_neq = 1;
+
+ /* Cube-maps on 965 and later must use the same wrap mode for all 3
+ * coordinate dimensions. Futher, only CUBE and CLAMP are valid.
*/
-#if 0
- if (texObj->Target == GL_TEXTURE_CUBE_MAP_ARB) {
- sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CUBE;
- sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CUBE;
- sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CUBE;
+ if (key->tex_target == GL_TEXTURE_CUBE_MAP) {
+ if (key->seamless_cube_map &&
+ (key->minfilter != GL_NEAREST || key->magfilter != GL_NEAREST)) {
+ sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CUBE;
+ sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CUBE;
+ sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CUBE;
+ } else {
+ sampler->ss1.r_wrap_mode = BRW_TEXCOORDMODE_CLAMP;
+ sampler->ss1.s_wrap_mode = BRW_TEXCOORDMODE_CLAMP;
+ sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_CLAMP;
+ }
+ } else if (key->tex_target == GL_TEXTURE_1D) {
+ /* There's a bug in 1D texture sampling - it actually pays
+ * attention to the wrap_t value, though it should not.
+ * Override the wrap_t value here to GL_REPEAT to keep
+ * any nonexistent border pixels from floating in.
+ */
+ sampler->ss1.t_wrap_mode = BRW_TEXCOORDMODE_WRAP;
}
-#endif
+
/* Set shadow function:
*/
*/
sampler->ss0.base_level = U_FIXED(0, 1);
- sampler->ss1.max_lod = U_FIXED(MIN2(MAX2(key->maxlod, 0), 13), 6);
- sampler->ss1.min_lod = U_FIXED(MIN2(MAX2(key->minlod, 0), 13), 6);
+ sampler->ss1.max_lod = U_FIXED(CLAMP(key->maxlod, 0, 13), 6);
+ sampler->ss1.min_lod = U_FIXED(CLAMP(key->minlod, 0, 13), 6);
sampler->ss2.default_color_pointer = sdc_bo->offset >> 5; /* reloc */
}
+
/** Sets up the cache key for sampler state for all texture units */
static void
brw_wm_sampler_populate_key(struct brw_context *brw,
struct wm_sampler_key *key)
{
+ GLcontext *ctx = &brw->intel.ctx;
int unit;
+ char *last_entry_end = ((char*)&key->sampler_count) +
+ sizeof(key->sampler_count);
- memset(key, 0, sizeof(*key));
+ key->sampler_count = 0;
for (unit = 0; unit < BRW_MAX_TEX_UNIT; unit++) {
- if (brw->attribs.Texture->Unit[unit]._ReallyEnabled) {
+ if (ctx->Texture.Unit[unit]._ReallyEnabled) {
struct wm_sampler_entry *entry = &key->sampler[unit];
- struct gl_texture_unit *texUnit = &brw->attribs.Texture->Unit[unit];
+ struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *texObj = texUnit->_Current;
+ struct intel_texture_object *intelObj = intel_texture_object(texObj);
+ struct gl_texture_image *firstImage =
+ texObj->Image[0][intelObj->firstLevel];
+
+ memset(last_entry_end, 0,
+ (char*)entry - last_entry_end + sizeof(*entry));
+ last_entry_end = ((char*)entry) + sizeof(*entry);
+
+ entry->tex_target = texObj->Target;
+
+ entry->seamless_cube_map = (texObj->Target == GL_TEXTURE_CUBE_MAP)
+ ? ctx->Texture.CubeMapSeamless : GL_FALSE;
entry->wrap_r = texObj->WrapR;
entry->wrap_s = texObj->WrapS;
entry->minfilter = texObj->MinFilter;
entry->magfilter = texObj->MagFilter;
entry->comparemode = texObj->CompareMode;
- entry->comparefunc = texObj->CompareFunc;
-
- dri_bo_unreference(brw->wm.sdc_bo[unit]);
- brw->wm.sdc_bo[unit] = upload_default_color(brw, texObj->BorderColor);
-
+ entry->comparefunc = texObj->CompareFunc;
+
+ drm_intel_bo_unreference(brw->wm.sdc_bo[unit]);
+ if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) {
+ float bordercolor[4] = {
+ texObj->BorderColor.f[0],
+ texObj->BorderColor.f[0],
+ texObj->BorderColor.f[0],
+ texObj->BorderColor.f[0]
+ };
+ /* GL specs that border color for depth textures is taken from the
+ * R channel, while the hardware uses A. Spam R into all the
+ * channels for safety.
+ */
+ brw->wm.sdc_bo[unit] = upload_default_color(brw, bordercolor);
+ } else {
+ brw->wm.sdc_bo[unit] = upload_default_color(brw,
+ texObj->BorderColor.f);
+ }
key->sampler_count = unit + 1;
}
}
+ struct wm_sampler_entry *entry = &key->sampler[key->sampler_count];
+ memset(last_entry_end, 0, (char*)entry - last_entry_end);
}
/* All samplers must be uploaded in a single contiguous array, which
* complicates various things. However, this is still too confusing -
* FIXME: simplify all the different new texture state flags.
*/
-static int upload_wm_samplers( struct brw_context *brw )
+static void upload_wm_samplers( struct brw_context *brw )
{
+ GLcontext *ctx = &brw->intel.ctx;
struct wm_sampler_key key;
- int i;
- int ret = 0;
+ int i, sampler_key_size;
brw_wm_sampler_populate_key(brw, &key);
brw->state.dirty.cache |= CACHE_NEW_SAMPLER;
}
- dri_bo_unreference(brw->wm.sampler_bo);
+ drm_intel_bo_unreference(brw->wm.sampler_bo);
brw->wm.sampler_bo = NULL;
if (brw->wm.sampler_count == 0)
- return 0;
+ return;
+ /* Only include the populated portion of the key in the search. */
+ sampler_key_size = offsetof(struct wm_sampler_key,
+ sampler[key.sampler_count]);
brw->wm.sampler_bo = brw_search_cache(&brw->cache, BRW_SAMPLER,
- &key, sizeof(key),
+ &key, sampler_key_size,
brw->wm.sdc_bo, key.sampler_count,
NULL);
if (brw->wm.sdc_bo[i] == NULL)
continue;
- brw_update_sampler_state(&key.sampler[i], brw->wm.sdc_bo[i],
+ brw_update_sampler_state(brw, &key.sampler[i], brw->wm.sdc_bo[i],
&sampler[i]);
}
brw->wm.sampler_bo = brw_upload_cache(&brw->cache, BRW_SAMPLER,
- &key, sizeof(key),
+ &key, sampler_key_size,
brw->wm.sdc_bo, key.sampler_count,
- &sampler, sizeof(sampler),
- NULL, NULL);
+ &sampler, sizeof(sampler));
/* Emit SDC relocations */
for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
- if (!brw->attribs.Texture->Unit[i]._ReallyEnabled)
+ if (!ctx->Texture.Unit[i]._ReallyEnabled)
continue;
- ret |= dri_bufmgr_check_aperture_space(brw->wm.sdc_bo[i]);
- intel_bo_emit_reloc(brw->wm.sampler_bo,
- DRM_GEM_DOMAIN_I915_INSTRUCTION, 0,
- 0,
- i * sizeof(struct brw_sampler_state) +
- offsetof(struct brw_sampler_state, ss2),
- brw->wm.sdc_bo[i]);
+ drm_intel_bo_emit_reloc(brw->wm.sampler_bo,
+ i * sizeof(struct brw_sampler_state) +
+ offsetof(struct brw_sampler_state, ss2),
+ brw->wm.sdc_bo[i], 0,
+ I915_GEM_DOMAIN_SAMPLER, 0);
}
}
-
- ret |= dri_bufmgr_check_aperture_space(brw->wm.sampler_bo);
- return ret;
-
}
const struct brw_tracked_state brw_wm_samplers = {
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