-/* The brw (and related graphics cores) do not support GL_CLAMP. The
- * Intel drivers for "other operating systems" implement GL_CLAMP as
- * GL_CLAMP_TO_EDGE, so the same is done here.
- */
-GLuint
-translate_wrap_mode(GLenum wrap)
+uint32_t
+translate_wrap_mode(GLenum wrap, bool using_nearest)
{
switch( wrap ) {
case GL_REPEAT:
return BRW_TEXCOORDMODE_WRAP;
- case GL_CLAMP:
- return BRW_TEXCOORDMODE_CLAMP;
+ case GL_CLAMP:
+ /* GL_CLAMP is the weird mode where coordinates are clamped to
+ * [0.0, 1.0], so linear filtering of coordinates outside of
+ * [0.0, 1.0] give you half edge texel value and half border
+ * color. The fragment shader will clamp the coordinates, and
+ * we set clamp_border here, which gets the result desired. We
+ * just use clamp(_to_edge) for nearest, because for nearest
+ * clamping to 1.0 gives border color instead of the desired
+ * edge texels.
+ */
+ if (using_nearest)
+ return BRW_TEXCOORDMODE_CLAMP;
+ else
+ return BRW_TEXCOORDMODE_CLAMP_BORDER;
case GL_CLAMP_TO_EDGE:
- return BRW_TEXCOORDMODE_CLAMP; /* conform likes it this way */
+ return BRW_TEXCOORDMODE_CLAMP;
case GL_CLAMP_TO_BORDER:
return BRW_TEXCOORDMODE_CLAMP_BORDER;
case GL_MIRRORED_REPEAT:
* Upload SAMPLER_BORDER_COLOR_STATE.
*/
void
-upload_default_color(struct brw_context *brw, struct gl_sampler_object *sampler,
- int unit)
+upload_default_color(struct brw_context *brw,
+ struct gl_sampler_object *sampler,
+ int unit,
+ uint32_t *sdc_offset)
{
- struct intel_context *intel = &brw->intel;
- struct gl_context *ctx = &intel->ctx;
+ struct gl_context *ctx = &brw->ctx;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *texObj = texUnit->_Current;
struct gl_texture_image *firstImage = texObj->Image[0][texObj->BaseLevel];
float color[4];
- if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) {
+ switch (firstImage->_BaseFormat) {
+ case GL_DEPTH_COMPONENT:
/* 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.
color[1] = sampler->BorderColor.f[0];
color[2] = sampler->BorderColor.f[0];
color[3] = sampler->BorderColor.f[0];
- } else {
+ break;
+ case GL_ALPHA:
+ color[0] = 0.0;
+ color[1] = 0.0;
+ color[2] = 0.0;
+ color[3] = sampler->BorderColor.f[3];
+ break;
+ case GL_INTENSITY:
+ color[0] = sampler->BorderColor.f[0];
+ color[1] = sampler->BorderColor.f[0];
+ color[2] = sampler->BorderColor.f[0];
+ color[3] = sampler->BorderColor.f[0];
+ break;
+ case GL_LUMINANCE:
+ color[0] = sampler->BorderColor.f[0];
+ color[1] = sampler->BorderColor.f[0];
+ color[2] = sampler->BorderColor.f[0];
+ color[3] = 1.0;
+ break;
+ case GL_LUMINANCE_ALPHA:
+ color[0] = sampler->BorderColor.f[0];
+ color[1] = sampler->BorderColor.f[0];
+ color[2] = sampler->BorderColor.f[0];
+ color[3] = sampler->BorderColor.f[3];
+ break;
+ default:
color[0] = sampler->BorderColor.f[0];
color[1] = sampler->BorderColor.f[1];
color[2] = sampler->BorderColor.f[2];
color[3] = sampler->BorderColor.f[3];
+ break;
}
- if (intel->gen == 5 || intel->gen == 6) {
+ /* In some cases we use an RGBA surface format for GL RGB textures,
+ * where we've initialized the A channel to 1.0. We also have to set
+ * the border color alpha to 1.0 in that case.
+ */
+ if (firstImage->_BaseFormat == GL_RGB)
+ color[3] = 1.0;
+
+ if (brw->gen == 5 || brw->gen == 6) {
struct gen5_sampler_default_color *sdc;
- sdc = brw_state_batch(brw, sizeof(*sdc), 32, &brw->wm.sdc_offset[unit]);
+ sdc = brw_state_batch(brw, AUB_TRACE_SAMPLER_DEFAULT_COLOR,
+ sizeof(*sdc), 32, sdc_offset);
memset(sdc, 0, sizeof(*sdc));
} else {
struct brw_sampler_default_color *sdc;
- sdc = brw_state_batch(brw, sizeof(*sdc), 32, &brw->wm.sdc_offset[unit]);
+ sdc = brw_state_batch(brw, AUB_TRACE_SAMPLER_DEFAULT_COLOR,
+ sizeof(*sdc), 32, sdc_offset);
COPY_4V(sdc->color, color);
}
*/
static void brw_update_sampler_state(struct brw_context *brw,
int unit,
- struct brw_sampler_state *sampler)
+ int ss_index,
+ struct brw_sampler_state *sampler,
+ uint32_t sampler_state_table_offset,
+ uint32_t *sdc_offset)
{
- struct intel_context *intel = &brw->intel;
- struct gl_context *ctx = &intel->ctx;
+ struct gl_context *ctx = &brw->ctx;
struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *texObj = texUnit->_Current;
struct gl_sampler_object *gl_sampler = _mesa_get_samplerobj(ctx, unit);
+ bool using_nearest = false;
+
+ /* These don't use samplers at all. */
+ if (texObj->Target == GL_TEXTURE_BUFFER)
+ return;
switch (gl_sampler->MinFilter) {
case GL_NEAREST:
sampler->ss0.min_filter = BRW_MAPFILTER_NEAREST;
sampler->ss0.mip_filter = BRW_MIPFILTER_NONE;
+ using_nearest = true;
break;
case GL_LINEAR:
sampler->ss0.min_filter = BRW_MAPFILTER_LINEAR;
switch (gl_sampler->MagFilter) {
case GL_NEAREST:
sampler->ss0.mag_filter = BRW_MAPFILTER_NEAREST;
+ using_nearest = true;
break;
case GL_LINEAR:
sampler->ss0.mag_filter = BRW_MAPFILTER_LINEAR;
}
}
- sampler->ss1.r_wrap_mode = translate_wrap_mode(gl_sampler->WrapR);
- sampler->ss1.s_wrap_mode = translate_wrap_mode(gl_sampler->WrapS);
- sampler->ss1.t_wrap_mode = translate_wrap_mode(gl_sampler->WrapT);
+ sampler->ss1.r_wrap_mode = translate_wrap_mode(gl_sampler->WrapR,
+ using_nearest);
+ sampler->ss1.s_wrap_mode = translate_wrap_mode(gl_sampler->WrapS,
+ using_nearest);
+ sampler->ss1.t_wrap_mode = translate_wrap_mode(gl_sampler->WrapT,
+ using_nearest);
- if (intel->gen >= 6 &&
+ if (brw->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 (texObj->Target == GL_TEXTURE_CUBE_MAP) {
+ if (texObj->Target == GL_TEXTURE_CUBE_MAP ||
+ texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY) {
if (ctx->Texture.CubeMapSeamless &&
(gl_sampler->MinFilter != GL_NEAREST ||
gl_sampler->MagFilter != GL_NEAREST)) {
sampler->ss1.max_lod = U_FIXED(CLAMP(gl_sampler->MaxLod, 0, 13), 6);
sampler->ss1.min_lod = U_FIXED(CLAMP(gl_sampler->MinLod, 0, 13), 6);
- upload_default_color(brw, gl_sampler, unit);
+ /* On Gen6+, the sampler can handle non-normalized texture
+ * rectangle coordinates natively
+ */
+ if (brw->gen >= 6 && texObj->Target == GL_TEXTURE_RECTANGLE) {
+ sampler->ss3.non_normalized_coord = 1;
+ }
+
+ upload_default_color(brw, gl_sampler, unit, sdc_offset);
- if (intel->gen >= 6) {
- sampler->ss2.default_color_pointer = brw->wm.sdc_offset[unit] >> 5;
+ if (brw->gen >= 6) {
+ sampler->ss2.default_color_pointer = *sdc_offset >> 5;
} else {
/* reloc */
- sampler->ss2.default_color_pointer = (intel->batch.bo->offset +
- brw->wm.sdc_offset[unit]) >> 5;
+ sampler->ss2.default_color_pointer = (brw->batch.bo->offset +
+ *sdc_offset) >> 5;
- drm_intel_bo_emit_reloc(intel->batch.bo,
- brw->wm.sampler_offset +
- unit * sizeof(struct brw_sampler_state) +
+ drm_intel_bo_emit_reloc(brw->batch.bo,
+ sampler_state_table_offset +
+ ss_index * sizeof(struct brw_sampler_state) +
offsetof(struct brw_sampler_state, ss2),
- intel->batch.bo, brw->wm.sdc_offset[unit],
+ brw->batch.bo, *sdc_offset,
I915_GEM_DOMAIN_SAMPLER, 0);
}
+
+ if (sampler->ss0.min_filter != BRW_MAPFILTER_NEAREST)
+ sampler->ss3.address_round |= BRW_ADDRESS_ROUNDING_ENABLE_U_MIN |
+ BRW_ADDRESS_ROUNDING_ENABLE_V_MIN |
+ BRW_ADDRESS_ROUNDING_ENABLE_R_MIN;
+ if (sampler->ss0.mag_filter != BRW_MAPFILTER_NEAREST)
+ sampler->ss3.address_round |= BRW_ADDRESS_ROUNDING_ENABLE_U_MAG |
+ BRW_ADDRESS_ROUNDING_ENABLE_V_MAG |
+ BRW_ADDRESS_ROUNDING_ENABLE_R_MAG;
}
-/* 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 void
-prepare_wm_samplers(struct brw_context *brw)
+brw_upload_sampler_state_table(struct brw_context *brw,
+ struct gl_program *prog,
+ uint32_t sampler_count,
+ uint32_t *sst_offset,
+ uint32_t *sdc_offset)
{
- struct gl_context *ctx = &brw->intel.ctx;
+ struct gl_context *ctx = &brw->ctx;
struct brw_sampler_state *samplers;
- int i;
- brw->wm.sampler_count = 0;
- for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled)
- brw->wm.sampler_count = i + 1;
- }
+ GLbitfield SamplersUsed = prog->SamplersUsed;
- if (brw->wm.sampler_count == 0)
+ if (sampler_count == 0)
return;
- samplers = brw_state_batch(brw, brw->wm.sampler_count * sizeof(*samplers),
- 32, &brw->wm.sampler_offset);
- memset(samplers, 0, brw->wm.sampler_count * sizeof(*samplers));
-
- for (i = 0; i < brw->wm.sampler_count; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled)
- brw_update_sampler_state(brw, i, &samplers[i]);
+ samplers = brw_state_batch(brw, AUB_TRACE_SAMPLER_STATE,
+ sampler_count * sizeof(*samplers),
+ 32, sst_offset);
+ memset(samplers, 0, sampler_count * sizeof(*samplers));
+
+ for (unsigned s = 0; s < sampler_count; s++) {
+ if (SamplersUsed & (1 << s)) {
+ const unsigned unit = prog->SamplerUnits[s];
+ if (ctx->Texture.Unit[unit]._ReallyEnabled)
+ brw_update_sampler_state(brw, unit, s, &samplers[s],
+ *sst_offset, &sdc_offset[s]);
+ }
}
brw->state.dirty.cache |= CACHE_NEW_SAMPLER;
}
-const struct brw_tracked_state brw_wm_samplers = {
+static void
+brw_upload_fs_samplers(struct brw_context *brw)
+{
+ /* BRW_NEW_FRAGMENT_PROGRAM */
+ struct gl_program *fs = (struct gl_program *) brw->fragment_program;
+ brw->vtbl.upload_sampler_state_table(brw, fs,
+ brw->wm.sampler_count,
+ &brw->wm.sampler_offset,
+ brw->wm.sdc_offset);
+}
+
+const struct brw_tracked_state brw_fs_samplers = {
.dirty = {
.mesa = _NEW_TEXTURE,
- .brw = BRW_NEW_BATCH,
+ .brw = BRW_NEW_BATCH |
+ BRW_NEW_FRAGMENT_PROGRAM,
.cache = 0
},
- .prepare = prepare_wm_samplers,
+ .emit = brw_upload_fs_samplers,
};
+static void
+brw_upload_vs_samplers(struct brw_context *brw)
+{
+ /* BRW_NEW_VERTEX_PROGRAM */
+ struct gl_program *vs = (struct gl_program *) brw->vertex_program;
+ brw->vtbl.upload_sampler_state_table(brw, vs,
+ brw->vs.sampler_count,
+ &brw->vs.sampler_offset,
+ brw->vs.sdc_offset);
+}
+
+const struct brw_tracked_state brw_vs_samplers = {
+ .dirty = {
+ .mesa = _NEW_TEXTURE,
+ .brw = BRW_NEW_BATCH |
+ BRW_NEW_VERTEX_PROGRAM,
+ .cache = 0
+ },
+ .emit = brw_upload_vs_samplers,
+};
+
+
+void
+gen4_init_vtable_sampler_functions(struct brw_context *brw)
+{
+ brw->vtbl.upload_sampler_state_table = brw_upload_sampler_state_table;
+}
projects / mesa.git / blobdiff