summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/r300
diff options
context:
space:
mode:
authorChristian König <[email protected]>2011-07-04 15:04:41 +0200
committerChristian König <[email protected]>2011-07-04 15:04:41 +0200
commitc3b2230b71cb3a00a7f4c0987197d397bada650b (patch)
tree018f5df0f8b5976ddb56ef4f13e9466587838998 /src/gallium/drivers/r300
parent003401f95c9b59471c22368b7da16fe7a951e490 (diff)
parent424b1210d951c206e7c2fb8f2778acbd384eb247 (diff)
Merge remote-tracking branch 'origin/master' into pipe-video
Conflicts: configure.ac src/gallium/drivers/r600/r600_state_inlines.h src/gallium/tests/trivial/Makefile src/gallium/winsys/g3dvl/dri/XF86dri.c src/gallium/winsys/g3dvl/dri/driclient.c src/gallium/winsys/g3dvl/dri/driclient.h src/gallium/winsys/g3dvl/dri/xf86dri.h src/gallium/winsys/g3dvl/dri/xf86dristr.h src/gallium/winsys/r600/drm/r600_bo.c
Diffstat (limited to 'src/gallium/drivers/r300')
-rw-r--r--src/gallium/drivers/r300/r300_render.c161
-rw-r--r--src/gallium/drivers/r300/r300_state.c2
-rw-r--r--src/gallium/drivers/r300/r300_state_derived.c6
-rw-r--r--src/gallium/drivers/r300/r300_state_inlines.h80
-rw-r--r--src/gallium/drivers/r300/r300_texture.c21
5 files changed, 126 insertions, 144 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index b24e7faa644..b31141a518e 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -46,30 +46,26 @@
static uint32_t r300_translate_primitive(unsigned prim)
{
- switch (prim) {
- case PIPE_PRIM_POINTS:
- return R300_VAP_VF_CNTL__PRIM_POINTS;
- case PIPE_PRIM_LINES:
- return R300_VAP_VF_CNTL__PRIM_LINES;
- case PIPE_PRIM_LINE_LOOP:
- return R300_VAP_VF_CNTL__PRIM_LINE_LOOP;
- case PIPE_PRIM_LINE_STRIP:
- return R300_VAP_VF_CNTL__PRIM_LINE_STRIP;
- case PIPE_PRIM_TRIANGLES:
- return R300_VAP_VF_CNTL__PRIM_TRIANGLES;
- case PIPE_PRIM_TRIANGLE_STRIP:
- return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP;
- case PIPE_PRIM_TRIANGLE_FAN:
- return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN;
- case PIPE_PRIM_QUADS:
- return R300_VAP_VF_CNTL__PRIM_QUADS;
- case PIPE_PRIM_QUAD_STRIP:
- return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP;
- case PIPE_PRIM_POLYGON:
- return R300_VAP_VF_CNTL__PRIM_POLYGON;
- default:
- return 0;
- }
+ static const int prim_conv[] = {
+ R300_VAP_VF_CNTL__PRIM_POINTS,
+ R300_VAP_VF_CNTL__PRIM_LINES,
+ R300_VAP_VF_CNTL__PRIM_LINE_LOOP,
+ R300_VAP_VF_CNTL__PRIM_LINE_STRIP,
+ R300_VAP_VF_CNTL__PRIM_TRIANGLES,
+ R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP,
+ R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN,
+ R300_VAP_VF_CNTL__PRIM_QUADS,
+ R300_VAP_VF_CNTL__PRIM_QUAD_STRIP,
+ R300_VAP_VF_CNTL__PRIM_POLYGON,
+ -1,
+ -1,
+ -1,
+ -1
+ };
+ unsigned hwprim = prim_conv[prim];
+
+ assert(hwprim != -1);
+ return hwprim;
}
static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300,
@@ -179,8 +175,8 @@ static void r300_split_index_bias(struct r300_context *r300, int index_bias,
enum r300_prepare_flags {
PREP_EMIT_STATES = (1 << 0), /* call emit_dirty_state and friends? */
PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */
- PREP_EMIT_AOS = (1 << 2), /* call emit_vertex_arrays? */
- PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_vertex_arrays_swtcl? */
+ PREP_EMIT_VARRAYS = (1 << 2), /* call emit_vertex_arrays? */
+ PREP_EMIT_VARRAYS_SWTCL = (1 << 3), /* call emit_vertex_arrays_swtcl? */
PREP_INDEXED = (1 << 4) /* is this draw_elements? */
};
@@ -197,23 +193,22 @@ static boolean r300_reserve_cs_dwords(struct r300_context *r300,
unsigned cs_dwords)
{
boolean flushed = FALSE;
- boolean first_draw = flags & PREP_EMIT_STATES;
- boolean emit_vertex_arrays = flags & PREP_EMIT_AOS;
- boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL;
+ boolean emit_states = flags & PREP_EMIT_STATES;
+ boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS;
+ boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_SWTCL;
/* Add dirty state, index offset, and AOS. */
- if (first_draw) {
+ if (emit_states)
cs_dwords += r300_get_num_dirty_dwords(r300);
- if (r300->screen->caps.is_r500)
- cs_dwords += 2; /* emit_index_offset */
+ if (r300->screen->caps.is_r500)
+ cs_dwords += 2; /* emit_index_offset */
- if (emit_vertex_arrays)
- cs_dwords += 55; /* emit_vertex_arrays */
+ if (emit_vertex_arrays)
+ cs_dwords += 55; /* emit_vertex_arrays */
- if (emit_vertex_arrays_swtcl)
- cs_dwords += 7; /* emit_vertex_arrays_swtcl */
- }
+ if (emit_vertex_arrays_swtcl)
+ cs_dwords += 7; /* emit_vertex_arrays_swtcl */
cs_dwords += r300_get_num_cs_end_dwords(r300);
@@ -242,46 +237,48 @@ static boolean r300_emit_states(struct r300_context *r300,
int buffer_offset,
int index_bias, int instance_id)
{
- boolean first_draw = flags & PREP_EMIT_STATES;
- boolean emit_vertex_arrays = flags & PREP_EMIT_AOS;
- boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL;
+ boolean emit_states = flags & PREP_EMIT_STATES;
+ boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS;
+ boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_SWTCL;
boolean indexed = flags & PREP_INDEXED;
boolean validate_vbos = flags & PREP_VALIDATE_VBOS;
/* Validate buffers and emit dirty state if needed. */
- if (first_draw) {
+ if (emit_states || (emit_vertex_arrays && validate_vbos)) {
if (!r300_emit_buffer_validate(r300, validate_vbos,
index_buffer)) {
fprintf(stderr, "r300: CS space validation failed. "
"(not enough memory?) Skipping rendering.\n");
return FALSE;
}
+ }
+ if (emit_states)
r300_emit_dirty_state(r300);
- if (r300->screen->caps.is_r500) {
- if (r300->screen->caps.has_tcl)
- r500_emit_index_bias(r300, index_bias);
- else
- r500_emit_index_bias(r300, 0);
- }
- if (emit_vertex_arrays &&
- (r300->vertex_arrays_dirty ||
- r300->vertex_arrays_indexed != indexed ||
- r300->vertex_arrays_offset != buffer_offset ||
- r300->vertex_arrays_instance_id != instance_id)) {
- r300_emit_vertex_arrays(r300, buffer_offset, indexed, instance_id);
-
- r300->vertex_arrays_dirty = FALSE;
- r300->vertex_arrays_indexed = indexed;
- r300->vertex_arrays_offset = buffer_offset;
- r300->vertex_arrays_instance_id = instance_id;
- }
+ if (r300->screen->caps.is_r500) {
+ if (r300->screen->caps.has_tcl)
+ r500_emit_index_bias(r300, index_bias);
+ else
+ r500_emit_index_bias(r300, 0);
+ }
- if (emit_vertex_arrays_swtcl)
- r300_emit_vertex_arrays_swtcl(r300, indexed);
+ if (emit_vertex_arrays &&
+ (r300->vertex_arrays_dirty ||
+ r300->vertex_arrays_indexed != indexed ||
+ r300->vertex_arrays_offset != buffer_offset ||
+ r300->vertex_arrays_instance_id != instance_id)) {
+ r300_emit_vertex_arrays(r300, buffer_offset, indexed, instance_id);
+
+ r300->vertex_arrays_dirty = FALSE;
+ r300->vertex_arrays_indexed = indexed;
+ r300->vertex_arrays_offset = buffer_offset;
+ r300->vertex_arrays_instance_id = instance_id;
}
+ if (emit_vertex_arrays_swtcl)
+ r300_emit_vertex_arrays_swtcl(r300, indexed);
+
return TRUE;
}
@@ -544,7 +541,7 @@ static void r300_draw_elements_immediate(struct r300_context *r300,
/* 19 dwords for r300_draw_elements_immediate. Give up if the function fails. */
if (!r300_prepare_for_rendering(r300,
- PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_AOS |
+ PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS |
PREP_INDEXED, NULL, 2+count_dwords, 0, info->index_bias, -1))
return;
@@ -666,7 +663,7 @@ static void r300_draw_elements(struct r300_context *r300,
/* 19 dwords for emit_draw_elements. Give up if the function fails. */
if (!r300_prepare_for_rendering(r300,
- PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_AOS |
+ PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS |
PREP_INDEXED, indexBuffer, 19, buffer_offset, info->index_bias,
instance_id))
goto done;
@@ -677,10 +674,11 @@ static void r300_draw_elements(struct r300_context *r300,
indices3);
} else {
do {
- if (indexSize == 2 && (start & 1))
- short_count = MIN2(count, 65535);
- else
- short_count = MIN2(count, 65534);
+ /* The maximum must be divisible by 4 and 3,
+ * so that quad and triangle lists are split correctly.
+ *
+ * Strips, loops, and fans won't work. */
+ short_count = MIN2(count, 65532);
r300_emit_draw_elements(r300, indexBuffer, indexSize,
info->min_index, info->max_index,
@@ -692,7 +690,7 @@ static void r300_draw_elements(struct r300_context *r300,
/* 15 dwords for emit_draw_elements */
if (count) {
if (!r300_prepare_for_rendering(r300,
- PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED,
+ PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS | PREP_INDEXED,
indexBuffer, 19, buffer_offset, info->index_bias,
instance_id))
goto done;
@@ -718,7 +716,7 @@ static void r300_draw_arrays(struct r300_context *r300,
/* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
if (!r300_prepare_for_rendering(r300,
- PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_AOS,
+ PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS,
NULL, 9, start, 0, instance_id))
return;
@@ -726,7 +724,11 @@ static void r300_draw_arrays(struct r300_context *r300,
r300_emit_draw_arrays(r300, info->mode, count);
} else {
do {
- short_count = MIN2(count, 65535);
+ /* The maximum must be divisible by 4 and 3,
+ * so that quad and triangle lists are split correctly.
+ *
+ * Strips, loops, and fans won't work. */
+ short_count = MIN2(count, 65532);
r300_emit_draw_arrays(r300, info->mode, short_count);
start += short_count;
@@ -735,7 +737,7 @@ static void r300_draw_arrays(struct r300_context *r300,
/* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
if (count) {
if (!r300_prepare_for_rendering(r300,
- PREP_VALIDATE_VBOS | PREP_EMIT_AOS, NULL, 9,
+ PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS, NULL, 9,
start, 0, instance_id))
return;
}
@@ -766,7 +768,6 @@ static void r300_draw_vbo(struct pipe_context* pipe,
{
struct r300_context* r300 = r300_context(pipe);
struct pipe_draw_info info = *dinfo;
- boolean buffers_updated, uploader_flushed;
info.indexed = info.indexed && r300->index_buffer.buffer;
@@ -778,9 +779,7 @@ static void r300_draw_vbo(struct pipe_context* pipe,
r300_update_derived_state(r300);
/* Start the vbuf manager and update buffers if needed. */
- u_vbuf_mgr_draw_begin(r300->vbuf_mgr, &info,
- &buffers_updated, &uploader_flushed);
- if (buffers_updated) {
+ if (u_vbuf_mgr_draw_begin(r300->vbuf_mgr, &info) & U_VBUF_BUFFERS_UPDATED) {
r300->vertex_arrays_dirty = TRUE;
}
@@ -842,7 +841,7 @@ static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
r300_update_derived_state(r300);
r300_reserve_cs_dwords(r300,
- PREP_EMIT_STATES | PREP_EMIT_AOS_SWTCL |
+ PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL |
(indexed ? PREP_INDEXED : 0),
indexed ? 256 : 6);
@@ -1024,12 +1023,12 @@ static void r300_render_draw_arrays(struct vbuf_render* render,
if (r300->draw_first_emitted) {
if (!r300_prepare_for_rendering(r300,
- PREP_EMIT_STATES | PREP_EMIT_AOS_SWTCL,
+ PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL,
NULL, dwords, 0, 0, -1))
return;
} else {
if (!r300_emit_states(r300,
- PREP_EMIT_STATES | PREP_EMIT_AOS_SWTCL,
+ PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL,
NULL, 0, 0, -1))
return;
}
@@ -1064,12 +1063,12 @@ static void r300_render_draw_elements(struct vbuf_render* render,
if (r300->draw_first_emitted) {
if (!r300_prepare_for_rendering(r300,
- PREP_EMIT_STATES | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
+ PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED,
NULL, 256, 0, 0, -1))
return;
} else {
if (!r300_emit_states(r300,
- PREP_EMIT_STATES | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
+ PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED,
NULL, 0, 0, -1))
return;
}
@@ -1106,7 +1105,7 @@ static void r300_render_draw_elements(struct vbuf_render* render,
if (count) {
if (!r300_prepare_for_rendering(r300,
- PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
+ PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED,
NULL, 256, 0, 0, -1))
return;
diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 7127ea1ac16..057cd9faf03 100644
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -1307,7 +1307,7 @@ static void*
sampler->filter0 |= r300_translate_tex_filters(state->min_img_filter,
state->mag_img_filter,
state->min_mip_filter,
- state->max_anisotropy > 0);
+ state->max_anisotropy > 1);
sampler->filter0 |= r300_anisotropy(state->max_anisotropy);
diff --git a/src/gallium/drivers/r300/r300_state_derived.c b/src/gallium/drivers/r300/r300_state_derived.c
index 121409b2260..f63114e7eb7 100644
--- a/src/gallium/drivers/r300/r300_state_derived.c
+++ b/src/gallium/drivers/r300/r300_state_derived.c
@@ -854,6 +854,12 @@ static void r300_merge_textures_and_samplers(struct r300_context* r300)
texstate->filter0 |= R300_TX_WRAP_T(R300_TX_CLAMP_TO_EDGE);
}
+ /* The hardware doesn't like CLAMP and CLAMP_TO_BORDER
+ * for the 3rd coordinate if the texture isn't 3D. */
+ if (tex->b.b.b.target != PIPE_TEXTURE_3D) {
+ texstate->filter0 &= ~R300_TX_WRAP_R_MASK;
+ }
+
if (tex->tex.is_npot) {
/* NPOT textures don't support mip filter, unfortunately.
* This prevents incorrect rendering. */
diff --git a/src/gallium/drivers/r300/r300_state_inlines.h b/src/gallium/drivers/r300/r300_state_inlines.h
index 54dae1acd98..62c03b3909b 100644
--- a/src/gallium/drivers/r300/r300_state_inlines.h
+++ b/src/gallium/drivers/r300/r300_state_inlines.h
@@ -261,51 +261,49 @@ static INLINE uint32_t r300_translate_wrap(int wrap)
}
static INLINE uint32_t r300_translate_tex_filters(int min, int mag, int mip,
- int is_anisotropic)
+ boolean is_anisotropic)
{
uint32_t retval = 0;
- if (is_anisotropic)
- retval |= R300_TX_MIN_FILTER_ANISO | R300_TX_MAG_FILTER_ANISO;
- else {
- switch (min) {
- case PIPE_TEX_FILTER_NEAREST:
- retval |= R300_TX_MIN_FILTER_NEAREST;
- break;
- case PIPE_TEX_FILTER_LINEAR:
- retval |= R300_TX_MIN_FILTER_LINEAR;
- break;
- default:
- fprintf(stderr, "r300: Unknown texture filter %d\n", min);
- assert(0);
- break;
- }
- switch (mag) {
- case PIPE_TEX_FILTER_NEAREST:
- retval |= R300_TX_MAG_FILTER_NEAREST;
- break;
- case PIPE_TEX_FILTER_LINEAR:
- retval |= R300_TX_MAG_FILTER_LINEAR;
- break;
- default:
- fprintf(stderr, "r300: Unknown texture filter %d\n", mag);
- assert(0);
- break;
- }
+
+ switch (min) {
+ case PIPE_TEX_FILTER_NEAREST:
+ retval |= R300_TX_MIN_FILTER_NEAREST;
+ break;
+ case PIPE_TEX_FILTER_LINEAR:
+ retval |= is_anisotropic ? R300_TX_MIN_FILTER_ANISO :
+ R300_TX_MIN_FILTER_LINEAR;
+ break;
+ default:
+ fprintf(stderr, "r300: Unknown texture filter %d\n", min);
+ assert(0);
}
+
+ switch (mag) {
+ case PIPE_TEX_FILTER_NEAREST:
+ retval |= R300_TX_MAG_FILTER_NEAREST;
+ break;
+ case PIPE_TEX_FILTER_LINEAR:
+ retval |= is_anisotropic ? R300_TX_MAG_FILTER_ANISO :
+ R300_TX_MAG_FILTER_LINEAR;
+ break;
+ default:
+ fprintf(stderr, "r300: Unknown texture filter %d\n", mag);
+ assert(0);
+ }
+
switch (mip) {
- case PIPE_TEX_MIPFILTER_NONE:
- retval |= R300_TX_MIN_FILTER_MIP_NONE;
- break;
- case PIPE_TEX_MIPFILTER_NEAREST:
- retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
- break;
- case PIPE_TEX_MIPFILTER_LINEAR:
- retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
- break;
- default:
- fprintf(stderr, "r300: Unknown texture filter %d\n", mip);
- assert(0);
- break;
+ case PIPE_TEX_MIPFILTER_NONE:
+ retval |= R300_TX_MIN_FILTER_MIP_NONE;
+ break;
+ case PIPE_TEX_MIPFILTER_NEAREST:
+ retval |= R300_TX_MIN_FILTER_MIP_NEAREST;
+ break;
+ case PIPE_TEX_MIPFILTER_LINEAR:
+ retval |= R300_TX_MIN_FILTER_MIP_LINEAR;
+ break;
+ default:
+ fprintf(stderr, "r300: Unknown texture filter %d\n", mip);
+ assert(0);
}
return retval;
diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c
index 38ca9a24e45..62c2f1fff6c 100644
--- a/src/gallium/drivers/r300/r300_texture.c
+++ b/src/gallium/drivers/r300/r300_texture.c
@@ -447,16 +447,8 @@ static uint32_t r300_translate_colorformat(enum pipe_format format)
/*case PIPE_FORMAT_B8G8R8A8_SNORM:*/
case PIPE_FORMAT_B8G8R8X8_UNORM:
/*case PIPE_FORMAT_B8G8R8X8_SNORM:*/
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- /*case PIPE_FORMAT_A8R8G8B8_SNORM:*/
- case PIPE_FORMAT_X8R8G8B8_UNORM:
- /*case PIPE_FORMAT_X8R8G8B8_SNORM:*/
- case PIPE_FORMAT_A8B8G8R8_UNORM:
- /*case PIPE_FORMAT_A8B8G8R8_SNORM:*/
case PIPE_FORMAT_R8G8B8A8_UNORM:
case PIPE_FORMAT_R8G8B8A8_SNORM:
- case PIPE_FORMAT_X8B8G8R8_UNORM:
- /*case PIPE_FORMAT_X8B8G8R8_SNORM:*/
case PIPE_FORMAT_R8G8B8X8_UNORM:
/*case PIPE_FORMAT_R8G8B8X8_SNORM:*/
/* These formats work fine with ARGB8888 if US_OUT_FMT is set
@@ -662,10 +654,6 @@ static uint32_t r300_translate_out_fmt(enum pipe_format format)
R300_C2_SEL_R | R300_C3_SEL_A;
/* ARGB outputs. */
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- /*case PIPE_FORMAT_A8R8G8B8_SNORM:*/
- case PIPE_FORMAT_X8R8G8B8_UNORM:
- /*case PIPE_FORMAT_X8R8G8B8_SNORM:*/
case PIPE_FORMAT_A16_UNORM:
case PIPE_FORMAT_A16_SNORM:
case PIPE_FORMAT_A16_FLOAT:
@@ -674,15 +662,6 @@ static uint32_t r300_translate_out_fmt(enum pipe_format format)
R300_C0_SEL_A | R300_C1_SEL_R |
R300_C2_SEL_G | R300_C3_SEL_B;
- /* ABGR outputs. */
- case PIPE_FORMAT_A8B8G8R8_UNORM:
- /*case PIPE_FORMAT_A8B8G8R8_SNORM:*/
- case PIPE_FORMAT_X8B8G8R8_UNORM:
- /*case PIPE_FORMAT_X8B8G8R8_SNORM:*/
- return modifier |
- R300_C0_SEL_A | R300_C1_SEL_B |
- R300_C2_SEL_G | R300_C3_SEL_R;
-
/* RGBA outputs. */
case PIPE_FORMAT_R8G8B8X8_UNORM:
/*case PIPE_FORMAT_R8G8B8X8_SNORM:*/