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-rw-r--r--src/gallium/drivers/softpipe/sp_context.c15
-rw-r--r--src/gallium/drivers/softpipe/sp_context.h23
-rw-r--r--src/gallium/drivers/softpipe/sp_state.h1
-rw-r--r--src/gallium/drivers/softpipe/sp_state_blend.c4
-rw-r--r--src/gallium/drivers/softpipe/sp_state_derived.c18
-rw-r--r--src/gallium/drivers/softpipe/sp_state_fs.c3
-rw-r--r--src/gallium/drivers/softpipe/sp_state_sampler.c104
-rw-r--r--src/gallium/drivers/softpipe/sp_tex_sample.c2176
-rw-r--r--src/gallium/drivers/softpipe/sp_tex_sample.h94
-rw-r--r--src/gallium/drivers/softpipe/sp_texture.c8
-rw-r--r--src/gallium/drivers/softpipe/sp_texture.h4
11 files changed, 1350 insertions, 1100 deletions
diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index a0196955c8..ef8faab3bd 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -228,21 +228,6 @@ softpipe_create( struct pipe_screen *screen )
softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
softpipe->quad.blend = sp_quad_blend_stage(softpipe);
- /* vertex shader samplers */
- for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
- softpipe->tgsi.vert_samplers[i].base.get_samples = sp_get_samples;
- softpipe->tgsi.vert_samplers[i].processor = TGSI_PROCESSOR_VERTEX;
- softpipe->tgsi.vert_samplers[i].cache = softpipe->tex_cache[i];
- softpipe->tgsi.vert_samplers_list[i] = &softpipe->tgsi.vert_samplers[i];
- }
-
- /* fragment shader samplers */
- for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
- softpipe->tgsi.frag_samplers[i].base.get_samples = sp_get_samples;
- softpipe->tgsi.frag_samplers[i].processor = TGSI_PROCESSOR_FRAGMENT;
- softpipe->tgsi.frag_samplers[i].cache = softpipe->tex_cache[i];
- softpipe->tgsi.frag_samplers_list[i] = &softpipe->tgsi.frag_samplers[i];
- }
/*
* Create drawing context and plug our rendering stage into it.
diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index fa3306c020..068a892f25 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -36,7 +36,6 @@
#include "draw/draw_vertex.h"
#include "sp_quad_pipe.h"
-#include "sp_tex_sample.h"
struct softpipe_vbuf_render;
@@ -51,12 +50,12 @@ struct softpipe_context {
struct pipe_context pipe; /**< base class */
/** Constant state objects */
- const struct pipe_blend_state *blend;
- const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
- const struct pipe_depth_stencil_alpha_state *depth_stencil;
- const struct pipe_rasterizer_state *rasterizer;
- const struct sp_fragment_shader *fs;
- const struct sp_vertex_shader *vs;
+ struct pipe_blend_state *blend;
+ struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
+ struct pipe_depth_stencil_alpha_state *depth_stencil;
+ struct pipe_rasterizer_state *rasterizer;
+ struct sp_fragment_shader *fs;
+ struct sp_vertex_shader *vs;
/** Other rendering state */
struct pipe_blend_color blend_color;
@@ -123,10 +122,8 @@ struct softpipe_context {
/** TGSI exec things */
struct {
- struct sp_shader_sampler vert_samplers[PIPE_MAX_SAMPLERS];
- struct sp_shader_sampler *vert_samplers_list[PIPE_MAX_SAMPLERS];
- struct sp_shader_sampler frag_samplers[PIPE_MAX_SAMPLERS];
- struct sp_shader_sampler *frag_samplers_list[PIPE_MAX_SAMPLERS];
+ struct sp_sampler_varient *vert_samplers_list[PIPE_MAX_SAMPLERS];
+ struct sp_sampler_varient *frag_samplers_list[PIPE_MAX_SAMPLERS];
} tgsi;
/** The primitive drawing context */
@@ -155,5 +152,9 @@ softpipe_context( struct pipe_context *pipe )
return (struct softpipe_context *)pipe;
}
+void
+softpipe_reset_sampler_varients(struct softpipe_context *softpipe);
+
+
#endif /* SP_CONTEXT_H */
diff --git a/src/gallium/drivers/softpipe/sp_state.h b/src/gallium/drivers/softpipe/sp_state.h
index 9776e978e3..77ee3c1136 100644
--- a/src/gallium/drivers/softpipe/sp_state.h
+++ b/src/gallium/drivers/softpipe/sp_state.h
@@ -87,6 +87,7 @@ struct sp_fragment_shader {
struct sp_vertex_shader {
struct pipe_shader_state shader;
struct draw_vertex_shader *draw_data;
+ int max_sampler; /* -1 if no samplers */
};
diff --git a/src/gallium/drivers/softpipe/sp_state_blend.c b/src/gallium/drivers/softpipe/sp_state_blend.c
index 384fe559af..efed082f82 100644
--- a/src/gallium/drivers/softpipe/sp_state_blend.c
+++ b/src/gallium/drivers/softpipe/sp_state_blend.c
@@ -45,7 +45,7 @@ void softpipe_bind_blend_state( struct pipe_context *pipe,
{
struct softpipe_context *softpipe = softpipe_context(pipe);
- softpipe->blend = (const struct pipe_blend_state *)blend;
+ softpipe->blend = (struct pipe_blend_state *)blend;
softpipe->dirty |= SP_NEW_BLEND;
}
@@ -86,7 +86,7 @@ softpipe_bind_depth_stencil_state(struct pipe_context *pipe,
{
struct softpipe_context *softpipe = softpipe_context(pipe);
- softpipe->depth_stencil = (const struct pipe_depth_stencil_alpha_state *)depth_stencil;
+ softpipe->depth_stencil = (struct pipe_depth_stencil_alpha_state *)depth_stencil;
softpipe->dirty |= SP_NEW_DEPTH_STENCIL_ALPHA;
}
diff --git a/src/gallium/drivers/softpipe/sp_state_derived.c b/src/gallium/drivers/softpipe/sp_state_derived.c
index 1f6e2ccb83..5310928332 100644
--- a/src/gallium/drivers/softpipe/sp_state_derived.c
+++ b/src/gallium/drivers/softpipe/sp_state_derived.c
@@ -198,19 +198,7 @@ update_tgsi_samplers( struct softpipe_context *softpipe )
{
unsigned i;
- /* vertex shader samplers */
- for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
- softpipe->tgsi.vert_samplers[i].sampler = softpipe->sampler[i];
- softpipe->tgsi.vert_samplers[i].texture = softpipe->texture[i];
- softpipe->tgsi.frag_samplers[i].base.get_samples = sp_get_samples;
- }
-
- /* fragment shader samplers */
- for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
- softpipe->tgsi.frag_samplers[i].sampler = softpipe->sampler[i];
- softpipe->tgsi.frag_samplers[i].texture = softpipe->texture[i];
- softpipe->tgsi.frag_samplers[i].base.get_samples = sp_get_samples;
- }
+ softpipe_reset_sampler_varients( softpipe );
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
sp_tile_cache_validate_texture( softpipe->tex_cache[i] );
@@ -232,7 +220,9 @@ void softpipe_update_derived( struct softpipe_context *softpipe )
}
if (softpipe->dirty & (SP_NEW_SAMPLER |
- SP_NEW_TEXTURE))
+ SP_NEW_TEXTURE |
+ SP_NEW_FS |
+ SP_NEW_VS))
update_tgsi_samplers( softpipe );
if (softpipe->dirty & (SP_NEW_RASTERIZER |
diff --git a/src/gallium/drivers/softpipe/sp_state_fs.c b/src/gallium/drivers/softpipe/sp_state_fs.c
index 108ac8b9bb..3a45321923 100644
--- a/src/gallium/drivers/softpipe/sp_state_fs.c
+++ b/src/gallium/drivers/softpipe/sp_state_fs.c
@@ -34,6 +34,7 @@
#include "pipe/internal/p_winsys_screen.h"
#include "pipe/p_shader_tokens.h"
#include "draw/draw_context.h"
+#include "draw/draw_vs.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_scan.h"
#include "tgsi/tgsi_parse.h"
@@ -108,6 +109,8 @@ softpipe_create_vs_state(struct pipe_context *pipe,
if (state->draw_data == NULL)
goto fail;
+ state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
+
return state;
fail:
diff --git a/src/gallium/drivers/softpipe/sp_state_sampler.c b/src/gallium/drivers/softpipe/sp_state_sampler.c
index aa2f3f2ccd..714e638048 100644
--- a/src/gallium/drivers/softpipe/sp_state_sampler.c
+++ b/src/gallium/drivers/softpipe/sp_state_sampler.c
@@ -38,15 +38,32 @@
#include "sp_state.h"
#include "sp_texture.h"
#include "sp_tile_cache.h"
+#include "sp_tex_sample.h"
#include "draw/draw_context.h"
+struct sp_sampler {
+ struct pipe_sampler_state base;
+ struct sp_sampler_varient *varients;
+ struct sp_sampler_varient *current;
+};
+
+static struct sp_sampler *sp_sampler( struct pipe_sampler_state *sampler )
+{
+ return (struct sp_sampler *)sampler;
+}
+
void *
softpipe_create_sampler_state(struct pipe_context *pipe,
const struct pipe_sampler_state *sampler)
{
- return mem_dup(sampler, sizeof(*sampler));
+ struct sp_sampler *sp_sampler = CALLOC_STRUCT(sp_sampler);
+
+ sp_sampler->base = *sampler;
+ sp_sampler->varients = NULL;
+
+ return (void *)sp_sampler;
}
@@ -106,10 +123,95 @@ softpipe_set_sampler_textures(struct pipe_context *pipe,
}
+
+static struct sp_sampler_varient *
+get_sampler_varient( struct sp_sampler *sampler,
+ struct pipe_texture *texture,
+ unsigned processor )
+{
+ struct softpipe_texture *sp_texture = softpipe_texture(texture);
+ struct sp_sampler_varient *v = NULL;
+ union sp_sampler_key key;
+
+ key.bits.target = sp_texture->base.target;
+ key.bits.is_pot = sp_texture->pot;
+ key.bits.processor = processor;
+ key.bits.pad = 0;
+
+ if (sampler->current &&
+ key.value == sampler->current->key.value) {
+ v = sampler->current;
+ }
+
+ if (v == NULL) {
+ for (v = sampler->varients; v; v = v->next)
+ if (v->key.value == key.value)
+ break;
+
+ if (v == NULL) {
+ v = sp_create_sampler_varient( &sampler->base, key );
+ v->next = sampler->varients;
+ sampler->varients = v;
+ }
+ }
+
+ sampler->current = v;
+ return v;
+}
+
+
+
+
+void
+softpipe_reset_sampler_varients(struct softpipe_context *softpipe)
+{
+ int i;
+
+ /* It's a bit hard to build these samplers ahead of time -- don't
+ * really know which samplers are going to be used for vertex and
+ * fragment programs.
+ */
+ for (i = 0; i <= softpipe->vs->max_sampler; i++) {
+ if (softpipe->sampler[i]) {
+ softpipe->tgsi.vert_samplers_list[i] =
+ get_sampler_varient( sp_sampler(softpipe->sampler[i]),
+ softpipe->texture[i],
+ TGSI_PROCESSOR_VERTEX );
+
+ sp_sampler_varient_bind_texture( softpipe->tgsi.vert_samplers_list[i],
+ softpipe->tex_cache[i],
+ softpipe->texture[i] );
+ }
+ }
+
+ for (i = 0; i <= softpipe->fs->info.file_max[TGSI_FILE_SAMPLER]; i++) {
+ if (softpipe->sampler[i]) {
+ softpipe->tgsi.frag_samplers_list[i] =
+ get_sampler_varient( sp_sampler(softpipe->sampler[i]),
+ softpipe->texture[i],
+ TGSI_PROCESSOR_FRAGMENT );
+
+ sp_sampler_varient_bind_texture( softpipe->tgsi.frag_samplers_list[i],
+ softpipe->tex_cache[i],
+ softpipe->texture[i] );
+ }
+ }
+}
+
+
+
void
softpipe_delete_sampler_state(struct pipe_context *pipe,
void *sampler)
{
+ struct sp_sampler *sp_sampler = (struct sp_sampler *)sampler;
+ struct sp_sampler_varient *v, *tmp;
+
+ for (v = sp_sampler->varients; v; v = tmp) {
+ tmp = v->next;
+ sp_sampler_varient_destroy(v);
+ }
+
FREE( sampler );
}
diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c
index 6c75158d59..7bc689a298 100644
--- a/src/gallium/drivers/softpipe/sp_tex_sample.c
+++ b/src/gallium/drivers/softpipe/sp_tex_sample.c
@@ -31,6 +31,7 @@
*
* Authors:
* Brian Paul
+ * Keith Whitwell
*/
#include "sp_context.h"
@@ -116,133 +117,157 @@ lerp_3d(float a, float b, float c,
* \param icoord returns the integer texcoords
* \return integer texture index
*/
-static INLINE void
-nearest_texcoord_4(unsigned wrapMode, const float s[4], unsigned size,
+static void
+wrap_nearest_repeat(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+
+ /* s limited to [0,1) */
+ /* i limited to [0,size-1] */
+ for (ch = 0; ch < 4; ch++) {
+ int i = util_ifloor(s[ch] * size);
+ icoord[ch] = REMAINDER(i, size);
+ }
+}
+
+
+static void
+wrap_nearest_clamp(const float s[4], unsigned size,
int icoord[4])
{
uint ch;
- switch (wrapMode) {
- case PIPE_TEX_WRAP_REPEAT:
- /* s limited to [0,1) */
- /* i limited to [0,size-1] */
- for (ch = 0; ch < 4; ch++) {
- int i = util_ifloor(s[ch] * size);
- icoord[ch] = REMAINDER(i, size);
- }
- return;
- case PIPE_TEX_WRAP_CLAMP:
+ /* s limited to [0,1] */
+ /* i limited to [0,size-1] */
+ for (ch = 0; ch < 4; ch++) {
+ if (s[ch] <= 0.0F)
+ icoord[ch] = 0;
+ else if (s[ch] >= 1.0F)
+ icoord[ch] = size - 1;
+ else
+ icoord[ch] = util_ifloor(s[ch] * size);
+ }
+}
+
+
+static void
+wrap_nearest_clamp_to_edge(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ /* s limited to [min,max] */
+ /* i limited to [0, size-1] */
+ const float min = 1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ for (ch = 0; ch < 4; ch++) {
+ if (s[ch] < min)
+ icoord[ch] = 0;
+ else if (s[ch] > max)
+ icoord[ch] = size - 1;
+ else
+ icoord[ch] = util_ifloor(s[ch] * size);
+ }
+}
+
+
+static void
+wrap_nearest_clamp_to_border(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ /* s limited to [min,max] */
+ /* i limited to [-1, size] */
+ const float min = -1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ for (ch = 0; ch < 4; ch++) {
+ if (s[ch] <= min)
+ icoord[ch] = -1;
+ else if (s[ch] >= max)
+ icoord[ch] = size;
+ else
+ icoord[ch] = util_ifloor(s[ch] * size);
+ }
+}
+
+static void
+wrap_nearest_mirror_repeat(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ const float min = 1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ for (ch = 0; ch < 4; ch++) {
+ const int flr = util_ifloor(s[ch]);
+ float u;
+ if (flr & 1)
+ u = 1.0F - (s[ch] - (float) flr);
+ else
+ u = s[ch] - (float) flr;
+ if (u < min)
+ icoord[ch] = 0;
+ else if (u > max)
+ icoord[ch] = size - 1;
+ else
+ icoord[ch] = util_ifloor(u * size);
+ }
+}
+
+static void
+wrap_nearest_mirror_clamp(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
/* s limited to [0,1] */
/* i limited to [0,size-1] */
- for (ch = 0; ch < 4; ch++) {
- if (s[ch] <= 0.0F)
- icoord[ch] = 0;
- else if (s[ch] >= 1.0F)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(s[ch] * size);
- }
- return;
- case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
- {
- /* s limited to [min,max] */
- /* i limited to [0, size-1] */
- const float min = 1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- if (s[ch] < min)
- icoord[ch] = 0;
- else if (s[ch] > max)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(s[ch] * size);
- }
- }
- return;
- case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
- {
- /* s limited to [min,max] */
- /* i limited to [-1, size] */
- const float min = -1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- if (s[ch] <= min)
- icoord[ch] = -1;
- else if (s[ch] >= max)
- icoord[ch] = size;
- else
- icoord[ch] = util_ifloor(s[ch] * size);
- }
- }
- return;
- case PIPE_TEX_WRAP_MIRROR_REPEAT:
- {
- const float min = 1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- const int flr = util_ifloor(s[ch]);
- float u;
- if (flr & 1)
- u = 1.0F - (s[ch] - (float) flr);
- else
- u = s[ch] - (float) flr;
- if (u < min)
- icoord[ch] = 0;
- else if (u > max)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(u * size);
- }
- }
- return;
- case PIPE_TEX_WRAP_MIRROR_CLAMP:
- for (ch = 0; ch < 4; ch++) {
- /* s limited to [0,1] */
- /* i limited to [0,size-1] */
- const float u = fabsf(s[ch]);
- if (u <= 0.0F)
- icoord[ch] = 0;
- else if (u >= 1.0F)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(u * size);
- }
- return;
- case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
- {
- /* s limited to [min,max] */
- /* i limited to [0, size-1] */
- const float min = 1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- const float u = fabsf(s[ch]);
- if (u < min)
- icoord[ch] = 0;
- else if (u > max)
- icoord[ch] = size - 1;
- else
- icoord[ch] = util_ifloor(u * size);
- }
- }
- return;
- case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
- {
- /* s limited to [min,max] */
- /* i limited to [0, size-1] */
- const float min = -1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- const float u = fabsf(s[ch]);
- if (u < min)
- icoord[ch] = -1;
- else if (u > max)
- icoord[ch] = size;
- else
- icoord[ch] = util_ifloor(u * size);
- }
- }
- return;
- default:
- assert(0);
+ const float u = fabsf(s[ch]);
+ if (u <= 0.0F)
+ icoord[ch] = 0;
+ else if (u >= 1.0F)
+ icoord[ch] = size - 1;
+ else
+ icoord[ch] = util_ifloor(u * size);
+ }
+}
+
+static void
+wrap_nearest_mirror_clamp_to_edge(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ /* s limited to [min,max] */
+ /* i limited to [0, size-1] */
+ const float min = 1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ for (ch = 0; ch < 4; ch++) {
+ const float u = fabsf(s[ch]);
+ if (u < min)
+ icoord[ch] = 0;
+ else if (u > max)
+ icoord[ch] = size - 1;
+ else
+ icoord[ch] = util_ifloor(u * size);
+ }
+}
+
+
+static void
+wrap_nearest_mirror_clamp_to_border(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ /* s limited to [min,max] */
+ /* i limited to [0, size-1] */
+ const float min = -1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ for (ch = 0; ch < 4; ch++) {
+ const float u = fabsf(s[ch]);
+ if (u < min)
+ icoord[ch] = -1;
+ else if (u > max)
+ icoord[ch] = size;
+ else
+ icoord[ch] = util_ifloor(u * size);
}
}
@@ -257,125 +282,151 @@ nearest_texcoord_4(unsigned wrapMode, const float s[4], unsigned size,
* \param w returns blend factor/weight between texture indexes
* \param icoord returns the computed integer texture coords
*/
-static INLINE void
-linear_texcoord_4(unsigned wrapMode, const float s[4], unsigned size,
+static void
+wrap_linear_repeat(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ uint ch;
+
+ for (ch = 0; ch < 4; ch++) {
+ float u = s[ch] * size - 0.5F;
+ icoord0[ch] = REMAINDER(util_ifloor(u), size);
+ icoord1[ch] = REMAINDER(icoord0[ch] + 1, size);
+ w[ch] = FRAC(u);
+ }
+}
+
+static void
+wrap_linear_clamp(const float s[4], unsigned size,
int icoord0[4], int icoord1[4], float w[4])
{
uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = CLAMP(s[ch], 0.0F, 1.0F);
+ u = u * size - 0.5f;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ w[ch] = FRAC(u);
+ }
+}
- switch (wrapMode) {
- case PIPE_TEX_WRAP_REPEAT:
- for (ch = 0; ch < 4; ch++) {
- float u = s[ch] * size - 0.5F;
- icoord0[ch] = REMAINDER(util_ifloor(u), size);
- icoord1[ch] = REMAINDER(icoord0[ch] + 1, size);
- w[ch] = FRAC(u);
- }
- break;;
- case PIPE_TEX_WRAP_CLAMP:
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], 0.0F, 1.0F);
- u = u * size - 0.5f;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = FRAC(u);
- }
- break;;
- case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], 0.0F, 1.0F);
- u = u * size - 0.5f;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord0[ch] < 0)
- icoord0[ch] = 0;
- if (icoord1[ch] >= (int) size)
- icoord1[ch] = size - 1;
- w[ch] = FRAC(u);
- }
- break;;
- case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
- {
- const float min = -1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], min, max);
- u = u * size - 0.5f;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = FRAC(u);
- }
- }
- break;;
- case PIPE_TEX_WRAP_MIRROR_REPEAT:
- for (ch = 0; ch < 4; ch++) {
- const int flr = util_ifloor(s[ch]);
- float u;
- if (flr & 1)
- u = 1.0F - (s[ch] - (float) flr);
- else
- u = s[ch] - (float) flr;
- u = u * size - 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord0[ch] < 0)
- icoord0[ch] = 0;
- if (icoord1[ch] >= (int) size)
- icoord1[ch] = size - 1;
- w[ch] = FRAC(u);
- }
- break;;
- case PIPE_TEX_WRAP_MIRROR_CLAMP:
- for (ch = 0; ch < 4; ch++) {
- float u = fabsf(s[ch]);
- if (u >= 1.0F)
- u = (float) size;
- else
- u *= size;
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = FRAC(u);
- }
- break;;
- case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
- for (ch = 0; ch < 4; ch++) {
- float u = fabsf(s[ch]);
- if (u >= 1.0F)
- u = (float) size;
- else
- u *= size;
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord0[ch] < 0)
- icoord0[ch] = 0;
- if (icoord1[ch] >= (int) size)
- icoord1[ch] = size - 1;
- w[ch] = FRAC(u);
- }
- break;;
- case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
- {
- const float min = -1.0F / (2.0F * size);
- const float max = 1.0F - min;
- for (ch = 0; ch < 4; ch++) {
- float u = fabsf(s[ch]);
- if (u <= min)
- u = min * size;
- else if (u >= max)
- u = max * size;
- else
- u *= size;
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = FRAC(u);
- }
- }
- break;;
- default:
- assert(0);
+static void
+wrap_linear_clamp_to_edge(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = CLAMP(s[ch], 0.0F, 1.0F);
+ u = u * size - 0.5f;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ if (icoord0[ch] < 0)
+ icoord0[ch] = 0;
+ if (icoord1[ch] >= (int) size)
+ icoord1[ch] = size - 1;
+ w[ch] = FRAC(u);
+ }
+}
+
+static void
+wrap_linear_clamp_to_border(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ const float min = -1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = CLAMP(s[ch], min, max);
+ u = u * size - 0.5f;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ w[ch] = FRAC(u);
+ }
+}
+
+
+static void
+wrap_linear_mirror_repeat(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ const int flr = util_ifloor(s[ch]);
+ float u;
+ if (flr & 1)
+ u = 1.0F - (s[ch] - (float) flr);
+ else
+ u = s[ch] - (float) flr;
+ u = u * size - 0.5F;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ if (icoord0[ch] < 0)
+ icoord0[ch] = 0;
+ if (icoord1[ch] >= (int) size)
+ icoord1[ch] = size - 1;
+ w[ch] = FRAC(u);
+ }
+}
+
+static void
+wrap_linear_mirror_clamp(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = fabsf(s[ch]);
+ if (u >= 1.0F)
+ u = (float) size;
+ else
+ u *= size;
+ u -= 0.5F;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ w[ch] = FRAC(u);
+ }
+}
+
+static void
+wrap_linear_mirror_clamp_to_edge(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = fabsf(s[ch]);
+ if (u >= 1.0F)
+ u = (float) size;
+ else
+ u *= size;
+ u -= 0.5F;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ if (icoord0[ch] < 0)
+ icoord0[ch] = 0;
+ if (icoord1[ch] >= (int) size)
+ icoord1[ch] = size - 1;
+ w[ch] = FRAC(u);
+ }
+}
+
+static void
+wrap_linear_mirror_clamp_to_border(const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
+{
+ const float min = -1.0F / (2.0F * size);
+ const float max = 1.0F - min;
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = fabsf(s[ch]);
+ if (u <= min)
+ u = min * size;
+ else if (u >= max)
+ u = max * size;
+ else
+ u *= size;
+ u -= 0.5F;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ w[ch] = FRAC(u);
}
}
@@ -384,27 +435,26 @@ linear_texcoord_4(unsigned wrapMode, const float s[4], unsigned size,
* For RECT textures / unnormalized texcoords
* Only a subset of wrap modes supported.
*/
-static INLINE void
-nearest_texcoord_unnorm_4(unsigned wrapMode, const float s[4], unsigned size,
+static void
+wrap_nearest_unorm_clamp(const float s[4], unsigned size,
int icoord[4])
{
uint ch;
- switch (wrapMode) {
- case PIPE_TEX_WRAP_CLAMP:
- for (ch = 0; ch < 4; ch++) {
- int i = util_ifloor(s[ch]);
- icoord[ch]= CLAMP(i, 0, (int) size-1);
- }
- return;
- case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
- /* fall-through */
- case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
- for (ch = 0; ch < 4; ch++) {
- icoord[ch]= util_ifloor( CLAMP(s[ch], 0.5F, (float) size - 0.5F) );
- }
- return;
- default:
- assert(0);
+ for (ch = 0; ch < 4; ch++) {
+ int i = util_ifloor(s[ch]);
+ icoord[ch]= CLAMP(i, 0, (int) size-1);
+ }
+}
+
+/* Handles clamp_to_edge and clamp_to_border:
+ */
+static void
+wrap_nearest_unorm_clamp_to_border(const float s[4], unsigned size,
+ int icoord[4])
+{
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ icoord[ch]= util_ifloor( CLAMP(s[ch], 0.5F, (float) size - 0.5F) );
}
}
@@ -413,157 +463,82 @@ nearest_texcoord_unnorm_4(unsigned wrapMode, const float s[4], unsigned size,
* For RECT textures / unnormalized texcoords.
* Only a subset of wrap modes supported.
*/
-static INLINE void
-linear_texcoord_unnorm_4(unsigned wrapMode, const float s[4], unsigned size,
+static void
+wrap_linear_unorm_clamp(const float s[4], unsigned size,
int icoord0[4], int icoord1[4], float w[4])
{
uint ch;
- switch (wrapMode) {
- case PIPE_TEX_WRAP_CLAMP:
- for (ch = 0; ch < 4; ch++) {
- /* Not exactly what the spec says, but it matches NVIDIA output */
- float u = CLAMP(s[ch] - 0.5F, 0.0f, (float) size - 1.0f);
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- w[ch] = FRAC(u);
- }
- return;
- case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
- /* fall-through */
- case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
- for (ch = 0; ch < 4; ch++) {
- float u = CLAMP(s[ch], 0.5F, (float) size - 0.5F);
- u -= 0.5F;
- icoord0[ch] = util_ifloor(u);
- icoord1[ch] = icoord0[ch] + 1;
- if (icoord1[ch] > (int) size - 1)
- icoord1[ch] = size - 1;
- w[ch] = FRAC(u);
- }
- break;
- default:
- assert(0);
+ for (ch = 0; ch < 4; ch++) {
+ /* Not exactly what the spec says, but it matches NVIDIA output */
+ float u = CLAMP(s[ch] - 0.5F, 0.0f, (float) size - 1.0f);
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ w[ch] = FRAC(u);
}
}
-
-static unsigned
-choose_cube_face(float rx, float ry, float rz, float *newS, float *newT)
+static void
+wrap_linear_unorm_clamp_to_border( const float s[4], unsigned size,
+ int icoord0[4], int icoord1[4], float w[4])
{
- /*
- major axis
- direction target sc tc ma
- ---------- ------------------------------- --- --- ---
- +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx
- -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx
- +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry
- -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry
- +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz
- -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz
- */
- const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
- unsigned face;
- float sc, tc, ma;
-
- if (arx > ary && arx > arz) {
- if (rx >= 0.0F) {
- face = PIPE_TEX_FACE_POS_X;
- sc = -rz;
- tc = -ry;
- ma = arx;
- }
- else {
- face = PIPE_TEX_FACE_NEG_X;
- sc = rz;
- tc = -ry;
- ma = arx;
- }
- }
- else if (ary > arx && ary > arz) {
- if (ry >= 0.0F) {
- face = PIPE_TEX_FACE_POS_Y;
- sc = rx;
- tc = rz;
- ma = ary;
- }
- else {
- face = PIPE_TEX_FACE_NEG_Y;
- sc = rx;
- tc = -rz;
- ma = ary;
- }
- }
- else {
- if (rz > 0.0F) {
- face = PIPE_TEX_FACE_POS_Z;
- sc = rx;
- tc = -ry;
- ma = arz;
- }
- else {
- face = PIPE_TEX_FACE_NEG_Z;
- sc = -rx;
- tc = -ry;
- ma = arz;
- }
+ uint ch;
+ for (ch = 0; ch < 4; ch++) {
+ float u = CLAMP(s[ch], 0.5F, (float) size - 0.5F);
+ u -= 0.5F;
+ icoord0[ch] = util_ifloor(u);
+ icoord1[ch] = icoord0[ch] + 1;
+ if (icoord1[ch] > (int) size - 1)
+ icoord1[ch] = size - 1;
+ w[ch] = FRAC(u);
}
+}
+
- *newS = ( sc / ma + 1.0F ) * 0.5F;
- *newT = ( tc / ma + 1.0F ) * 0.5F;
- return face;
-}
/**
* Examine the quad's texture coordinates to compute the partial
* derivatives w.r.t X and Y, then compute lambda (level of detail).
- *
- * This is only done for fragment shaders, not vertex shaders.
*/
static float
-compute_lambda(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias)
+compute_lambda_1d(const struct sp_sampler_varient *samp,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias)
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
const struct pipe_sampler_state *sampler = samp->sampler;
- float rho, lambda;
+ float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
+ float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
+ float rho = MAX2(dsdx, dsdy) * texture->width[0];
+ float lambda;
- if (samp->processor == TGSI_PROCESSOR_VERTEX)
- return lodbias;
+ lambda = util_fast_log2(rho);
+ lambda += lodbias + sampler->lod_bias;
+ lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod);
- assert(sampler->normalized_coords);
+ return lambda;
+}
- assert(s);
- {
- float dsdx = s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT];
- float dsdy = s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT];
- dsdx = fabsf(dsdx);
- dsdy = fabsf(dsdy);
- rho = MAX2(dsdx, dsdy) * texture->width[0];
- }
- if (t) {
- float dtdx = t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT];
- float dtdy = t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT];
- float max;
- dtdx = fabsf(dtdx);
- dtdy = fabsf(dtdy);
- max = MAX2(dtdx, dtdy) * texture->height[0];
- rho = MAX2(rho, max);
- }
- if (p) {
- float dpdx = p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT];
- float dpdy = p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT];
- float max;
- dpdx = fabsf(dpdx);
- dpdy = fabsf(dpdy);
- max = MAX2(dpdx, dpdy) * texture->depth[0];
- rho = MAX2(rho, max);
- }
+static float
+compute_lambda_2d(const struct sp_sampler_varient *samp,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias)
+{
+ const struct pipe_texture *texture = samp->texture;
+ const struct pipe_sampler_state *sampler = samp->sampler;
+ float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
+ float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
+ float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
+ float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
+ float maxx = MAX2(dsdx, dsdy) * texture->width[0];
+ float maxy = MAX2(dtdx, dtdy) * texture->height[0];
+ float rho = MAX2(maxx, maxy);
+ float lambda;
lambda = util_fast_log2(rho);
lambda += lodbias + sampler->lod_bias;
@@ -573,82 +548,50 @@ compute_lambda(struct tgsi_sampler *tgsi_sampler,
}
-/**
- * Do several things here:
- * 1. Compute lambda from the texcoords, if needed
- * 2. Determine if we're minifying or magnifying
- * 3. If minifying, choose mipmap levels
- * 4. Return image filter to use within mipmap images
- * \param level0 Returns first mipmap level to sample from
- * \param level1 Returns second mipmap level to sample from
- * \param levelBlend Returns blend factor between levels, in [0,1]
- * \param imgFilter Returns either the min or mag filter, depending on lambda
- */
-static void
-choose_mipmap_levels(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- unsigned *level0, unsigned *level1, float *levelBlend,
- unsigned *imgFilter)
+static float
+compute_lambda_3d(const struct sp_sampler_varient *samp,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias)
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
const struct pipe_sampler_state *sampler = samp->sampler;
+ float dsdx = fabsf(s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]);
+ float dsdy = fabsf(s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]);
+ float dtdx = fabsf(t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]);
+ float dtdy = fabsf(t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]);
+ float dpdx = fabsf(p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]);
+ float dpdy = fabsf(p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]);
+ float maxx = MAX2(dsdx, dsdy) * texture->width[0];
+ float maxy = MAX2(dtdx, dtdy) * texture->height[0];
+ float maxz = MAX2(dpdx, dpdy) * texture->depth[0];
+ float rho, lambda;
- if (sampler->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) {
- /* no mipmap selection needed */
- *level0 = *level1 = CLAMP((int) sampler->min_lod,
- 0, (int) texture->last_level);
-
- if (sampler->min_img_filter != sampler->mag_img_filter) {
- /* non-mipmapped texture, but still need to determine if doing
- * minification or magnification.
- */
- float lambda = compute_lambda(tgsi_sampler, s, t, p, lodbias);
- if (lambda <= 0.0) {
- *imgFilter = sampler->mag_img_filter;
- }
- else {
- *imgFilter = sampler->min_img_filter;
- }
- }
- else {
- *imgFilter = sampler->mag_img_filter;
- }
- }
- else {
- float lambda = compute_lambda(tgsi_sampler, s, t, p, lodbias);
+ rho = MAX2(maxx, maxy);
+ rho = MAX2(rho, maxz);
- if (lambda <= 0.0) { /* XXX threshold depends on the filter */
- /* magnifying */
- *imgFilter = sampler->mag_img_filter;
- *level0 = *level1 = 0;
- }
- else {
- /* minifying */
- *imgFilter = sampler->min_img_filter;
-
- /* choose mipmap level(s) and compute the blend factor between them */
- if (sampler->min_mip_filter == PIPE_TEX_MIPFILTER_NEAREST) {
- /* Nearest mipmap level */
- const int lvl = (int) (lambda + 0.5);
- *level0 =
- *level1 = CLAMP(lvl, 0, (int) texture->last_level);
- }
- else {
- /* Linear interpolation between mipmap levels */
- const int lvl = (int) lambda;
- *level0 = CLAMP(lvl, 0, (int) texture->last_level);
- *level1 = CLAMP(lvl + 1, 0, (int) texture->last_level);
- *levelBlend = FRAC(lambda); /* blending weight between levels */
- }
- }
- }
+ lambda = util_fast_log2(rho);
+ lambda += lodbias + sampler->lod_bias;
+ lambda = CLAMP(lambda, sampler->min_lod, sampler->max_lod);
+
+ return lambda;
}
+
+static float
+compute_lambda_vert(const struct sp_sampler_varient *samp,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias)
+{
+ return lodbias;
+}
+
+
+
/**
* Get a texel from a texture, using the texture tile cache.
*
@@ -663,12 +606,12 @@ choose_mipmap_levels(struct tgsi_sampler *tgsi_sampler,
* XXX maybe move this into sp_tile_cache.c and merge with the
* sp_get_cached_tile_tex() function. Also, get 4 texels instead of 1...
*/
-static void
+static INLINE void
get_texel_quad_2d(const struct tgsi_sampler *tgsi_sampler,
unsigned face, unsigned level, int x, int y,
const float *out[4])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct softpipe_cached_tile *tile
= sp_get_cached_tile_tex(samp->cache,
@@ -687,7 +630,7 @@ static INLINE const float *
get_texel_2d_ptr(const struct tgsi_sampler *tgsi_sampler,
unsigned face, unsigned level, int x, int y)
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct softpipe_cached_tile *tile
= sp_get_cached_tile_tex(samp->cache,
@@ -700,7 +643,7 @@ get_texel_2d_ptr(const struct tgsi_sampler *tgsi_sampler,
}
-static void
+static INLINE void
get_texel_quad_2d_mt(const struct tgsi_sampler *tgsi_sampler,
unsigned face, unsigned level,
int x0, int y0,
@@ -717,12 +660,12 @@ get_texel_quad_2d_mt(const struct tgsi_sampler *tgsi_sampler,
}
}
-static void
+static INLINE void
get_texel(const struct tgsi_sampler *tgsi_sampler,
unsigned face, unsigned level, int x, int y, int z,
float rgba[NUM_CHANNELS][QUAD_SIZE], unsigned j)
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
const struct pipe_sampler_state *sampler = samp->sampler;
@@ -756,140 +699,18 @@ get_texel(const struct tgsi_sampler *tgsi_sampler,
}
-/**
- * Compare texcoord 'p' (aka R) against texture value 'rgba[0]'
- * When we sampled the depth texture, the depth value was put into all
- * RGBA channels. We look at the red channel here.
- * \param rgba quad of (depth) texel values
- * \param p texture 'P' components for four pixels in quad
- * \param j which pixel in the quad to test [0..3]
- */
-static INLINE void
-shadow_compare(const struct pipe_sampler_state *sampler,
- float rgba[NUM_CHANNELS][QUAD_SIZE],
- const float p[QUAD_SIZE],
- uint j)
-{
- int k;
- switch (sampler->compare_func) {
- case PIPE_FUNC_LESS:
- k = p[j] < rgba[0][j];
- break;
- case PIPE_FUNC_LEQUAL:
- k = p[j] <= rgba[0][j];
- break;
- case PIPE_FUNC_GREATER:
- k = p[j] > rgba[0][j];
- break;
- case PIPE_FUNC_GEQUAL:
- k = p[j] >= rgba[0][j];
- break;
- case PIPE_FUNC_EQUAL:
- k = p[j] == rgba[0][j];
- break;
- case PIPE_FUNC_NOTEQUAL:
- k = p[j] != rgba[0][j];
- break;
- case PIPE_FUNC_ALWAYS:
- k = 1;
- break;
- case PIPE_FUNC_NEVER:
- k = 0;
- break;
- default:
- k = 0;
- assert(0);
- break;
- }
- /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
- rgba[0][j] = rgba[1][j] = rgba[2][j] = (float) k;
- rgba[3][j] = 1.0F;
-}
-/**
- * As above, but do four z/texture comparisons.
- */
static INLINE void
-shadow_compare4(const struct pipe_sampler_state *sampler,
- float rgba[NUM_CHANNELS][QUAD_SIZE],
- const float p[QUAD_SIZE])
-{
- int j, k0, k1, k2, k3;
- float val;
-
- /* compare four texcoords vs. four texture samples */
- switch (sampler->compare_func) {
- case PIPE_FUNC_LESS:
- k0 = p[0] < rgba[0][0];
- k1 = p[1] < rgba[0][1];
- k2 = p[2] < rgba[0][2];
- k3 = p[3] < rgba[0][3];
- break;
- case PIPE_FUNC_LEQUAL:
- k0 = p[0] <= rgba[0][0];
- k1 = p[1] <= rgba[0][1];
- k2 = p[2] <= rgba[0][2];
- k3 = p[3] <= rgba[0][3];
- break;
- case PIPE_FUNC_GREATER:
- k0 = p[0] > rgba[0][0];
- k1 = p[1] > rgba[0][1];
- k2 = p[2] > rgba[0][2];
- k3 = p[3] > rgba[0][3];
- break;
- case PIPE_FUNC_GEQUAL:
- k0 = p[0] >= rgba[0][0];
- k1 = p[1] >= rgba[0][1];
- k2 = p[2] >= rgba[0][2];
- k3 = p[3] >= rgba[0][3];
- break;
- case PIPE_FUNC_EQUAL:
- k0 = p[0] == rgba[0][0];
- k1 = p[1] == rgba[0][1];
- k2 = p[2] == rgba[0][2];
- k3 = p[3] == rgba[0][3];
- break;
- case PIPE_FUNC_NOTEQUAL:
- k0 = p[0] != rgba[0][0];
- k1 = p[1] != rgba[0][1];
- k2 = p[2] != rgba[0][2];
- k3 = p[3] != rgba[0][3];
- break;
- case PIPE_FUNC_ALWAYS:
- k0 = k1 = k2 = k3 = 1;
- break;
- case PIPE_FUNC_NEVER:
- k0 = k1 = k2 = k3 = 0;
- break;
- default:
- k0 = k1 = k2 = k3 = 0;
- assert(0);
- break;
- }
-
- /* convert four pass/fail values to an intensity in [0,1] */
- val = 0.25F * (k0 + k1 + k2 + k3);
-
- /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
- for (j = 0; j < 4; j++) {
- rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
- rgba[3][j] = 1.0F;
- }
-}
-
-
-
-static void
-sp_get_samples_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+img_filter_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
unsigned j;
unsigned level = samp->level;
unsigned xpot = 1 << (samp->xpot - level);
@@ -940,15 +761,15 @@ sp_get_samples_2d_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler,
}
-static void
-sp_get_samples_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+static INLINE void
+img_filter_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
unsigned j;
unsigned level = samp->level;
unsigned xpot = 1 << (samp->xpot - level);
@@ -975,15 +796,15 @@ sp_get_samples_2d_nearest_repeat_POT(struct tgsi_sampler *tgsi_sampler,
}
-static void
-sp_get_samples_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+static INLINE void
+img_filter_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
unsigned j;
unsigned level = samp->level;
unsigned xpot = 1 << (samp->xpot - level);
@@ -1018,238 +839,193 @@ sp_get_samples_2d_nearest_clamp_POT(struct tgsi_sampler *tgsi_sampler,
}
}
-
static void
-sp_get_samples_2d_linear_mip_linear_repeat_POT(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+img_filter_1d_nearest(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
- int level0;
- float lambda;
-
- lambda = compute_lambda(tgsi_sampler, s, t, p, lodbias);
- level0 = (int)lambda;
+ unsigned level0, j;
+ int width;
+ int x[4];
- if (lambda < 0.0) {
- samp->level = 0;
- sp_get_samples_2d_linear_repeat_POT( tgsi_sampler,
- s, t, p, 0, rgba );
- }
- else if (level0 >= texture->last_level) {
- samp->level = texture->last_level;
- sp_get_samples_2d_linear_repeat_POT( tgsi_sampler,
- s, t, p, 0, rgba );
- }
- else {
- float levelBlend = lambda - level0;
- float rgba0[4][4];
- float rgba1[4][4];
- int c,j;
+ level0 = samp->level;
+ width = texture->width[level0];
- samp->level = level0;
- sp_get_samples_2d_linear_repeat_POT( tgsi_sampler,
- s, t, p, 0, rgba0 );
+ assert(width > 0);
- samp->level = level0+1;
- sp_get_samples_2d_linear_repeat_POT( tgsi_sampler,
- s, t, p, 0, rgba1 );
+ samp->nearest_texcoord_s(s, width, x);
- for (j = 0; j < QUAD_SIZE; j++) {
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]);
- }
- }
+ for (j = 0; j < QUAD_SIZE; j++) {
+ get_texel(tgsi_sampler, 0, level0, x[j], 0, 0, rgba, j);
}
}
-/**
- * Common code for sampling 1D/2D/cube textures.
- * Could probably extend for 3D...
- */
+
static void
-sp_get_samples_2d_common(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE],
- const unsigned faces[4])
+img_filter_2d_nearest(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
- const struct pipe_sampler_state *sampler = samp->sampler;
- unsigned level0, level1, j, imgFilter;
+ const unsigned *faces = samp->faces; /* zero when not cube-mapping */
+ unsigned level0, j;
int width, height;
- float levelBlend;
+ int x[4], y[4];
+
+ level0 = samp->level;
+ width = texture->width[level0];
+ height = texture->height[level0];
+
+ assert(width > 0);
+
+ samp->nearest_texcoord_s(s, width, x);
+ samp->nearest_texcoord_t(t, height, y);
+
+ for (j = 0; j < QUAD_SIZE; j++) {
+ get_texel(tgsi_sampler, faces[j], level0, x[j], y[j], 0, rgba, j);
+ }
+}
- choose_mipmap_levels(tgsi_sampler, s, t, p,
- lodbias,
- &level0, &level1, &levelBlend, &imgFilter);
- assert(sampler->normalized_coords);
+static void
+img_filter_3d_nearest(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
+{
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ const struct pipe_texture *texture = samp->texture;
+ unsigned level0, j;
+ int width, height, depth;
+ int x[4], y[4], z[4];
+ level0 = samp->level;
width = texture->width[level0];
height = texture->height[level0];
+ depth = texture->depth[level0];
assert(width > 0);
+ assert(height > 0);
+ assert(depth > 0);
- switch (imgFilter) {
- case PIPE_TEX_FILTER_NEAREST:
- {
- int x[4], y[4];
- nearest_texcoord_4(sampler->wrap_s, s, width, x);
- nearest_texcoord_4(sampler->wrap_t, t, height, y);
-
- for (j = 0; j < QUAD_SIZE; j++) {
- get_texel(tgsi_sampler, faces[j], level0, x[j], y[j], 0, rgba, j);
- if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
- shadow_compare(sampler, rgba, p, j);
- }
+ samp->nearest_texcoord_s(s, width, x);
+ samp->nearest_texcoord_t(t, height, y);
+ samp->nearest_texcoord_p(p, depth, z);
- if (level0 != level1) {
- /* get texels from second mipmap level and blend */
- float rgba2[4][4];
- unsigned c;
- x[j] /= 2;
- y[j] /= 2;
- get_texel(tgsi_sampler, faces[j], level1, x[j], y[j], 0,
- rgba2, j);
- if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE){
- shadow_compare(sampler, rgba2, p, j);
- }
-
- for (c = 0; c < NUM_CHANNELS; c++) {
- rgba[c][j] = lerp(levelBlend, rgba[c][j], rgba2[c][j]);
- }
- }
- }
- }
- break;
- case PIPE_TEX_FILTER_LINEAR:
- case PIPE_TEX_FILTER_ANISO:
- {
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
-
- linear_texcoord_4(sampler->wrap_s, s, width, x0, x1, xw);
- linear_texcoord_4(sampler->wrap_t, t, height, y0, y1, yw);
-
- for (j = 0; j < QUAD_SIZE; j++) {
- float tx[4][4]; /* texels */
- int c;
- get_texel(tgsi_sampler, faces[j], level0, x0[j], y0[j], 0, tx, 0);
- get_texel(tgsi_sampler, faces[j], level0, x1[j], y0[j], 0, tx, 1);
- get_texel(tgsi_sampler, faces[j], level0, x0[j], y1[j], 0, tx, 2);
- get_texel(tgsi_sampler, faces[j], level0, x1[j], y1[j], 0, tx, 3);
- if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
- shadow_compare4(sampler, tx, p);
- }
+ for (j = 0; j < QUAD_SIZE; j++) {
+ get_texel(tgsi_sampler, 0, level0, x[j], y[j], z[j], rgba, j);
+ }
+}
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_2d(xw[j], yw[j],
- tx[c][0], tx[c][1],
- tx[c][2], tx[c][3]);
- }
- if (level0 != level1) {
- /* get texels from second mipmap level and blend */
- float rgba2[4][4];
-
- /* XXX: This is incorrect -- will often end up with (x0
- * == x1 && y0 == y1), meaning that we fetch the same
- * texel four times and linearly interpolate between
- * identical values. The correct approach would be to
- * call linear_texcoord again for the second level.
- */
- x0[j] /= 2;
- y0[j] /= 2;
- x1[j] /= 2;
- y1[j] /= 2;
- get_texel(tgsi_sampler, faces[j], level1, x0[j], y0[j], 0, tx, 0);
- get_texel(tgsi_sampler, faces[j], level1, x1[j], y0[j], 0, tx, 1);
- get_texel(tgsi_sampler, faces[j], level1, x0[j], y1[j], 0, tx, 2);
- get_texel(tgsi_sampler, faces[j], level1, x1[j], y1[j], 0, tx, 3);
- if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE){
- shadow_compare4(sampler, tx, p);
- }
-
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba2[c][j] = lerp_2d(xw[j], yw[j],
- tx[c][0], tx[c][1], tx[c][2], tx[c][3]);
- }
-
- for (c = 0; c < NUM_CHANNELS; c++) {
- rgba[c][j] = lerp(levelBlend, rgba[c][j], rgba2[c][j]);
- }
- }
- }
+static void
+img_filter_1d_linear(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
+{
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ const struct pipe_texture *texture = samp->texture;
+ unsigned level0, j;
+ int width;
+ int x0[4], x1[4];
+ float xw[4]; /* weights */
+
+
+ level0 = samp->level;
+ width = texture->width[level0];
+
+ assert(width > 0);
+
+ samp->linear_texcoord_s(s, width, x0, x1, xw);
+
+
+ for (j = 0; j < QUAD_SIZE; j++) {
+ float tx[4][4]; /* texels */
+ int c;
+ get_texel(tgsi_sampler, 0, level0, x0[j], 0, 0, tx, 0);
+ get_texel(tgsi_sampler, 0, level0, x1[j], 0, 0, tx, 1);
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = lerp(xw[j], tx[c][0], tx[c][1]);
}
- break;
- default:
- assert(0);
}
}
-
-static INLINE void
-sp_get_samples_1d(struct tgsi_sampler *sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+static void
+img_filter_2d_linear(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- static const unsigned faces[4] = {0, 0, 0, 0};
- static const float tzero[4] = {0, 0, 0, 0};
- sp_get_samples_2d_common(sampler, s, tzero, NULL,
- lodbias, rgba, faces);
-}
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ const struct pipe_texture *texture = samp->texture;
+ const unsigned *faces = samp->faces; /* zero when not cube-mapping */
+ unsigned level0, j;
+ int width, height;
+ int x0[4], y0[4], x1[4], y1[4];
+ float xw[4], yw[4]; /* weights */
-static INLINE void
-sp_get_samples_2d(struct tgsi_sampler *sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
-{
- static const unsigned faces[4] = {0, 0, 0, 0};
- sp_get_samples_2d_common(sampler, s, t, p,
- lodbias, rgba, faces);
+ level0 = samp->level;
+ width = texture->width[level0];
+ height = texture->height[level0];
+
+ assert(width > 0);
+
+ samp->linear_texcoord_s(s, width, x0, x1, xw);
+ samp->linear_texcoord_s(t, height, y0, y1, yw);
+
+ for (j = 0; j < QUAD_SIZE; j++) {
+ float tx[4][4]; /* texels */
+ int c;
+ get_texel(tgsi_sampler, faces[j], level0, x0[j], y0[j], 0, tx, 0);
+ get_texel(tgsi_sampler, faces[j], level0, x1[j], y0[j], 0, tx, 1);
+ get_texel(tgsi_sampler, faces[j], level0, x0[j], y1[j], 0, tx, 2);
+ get_texel(tgsi_sampler, faces[j], level0, x1[j], y1[j], 0, tx, 3);
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = lerp_2d(xw[j], yw[j],
+ tx[c][0], tx[c][1],
+ tx[c][2], tx[c][3]);
+ }
+ }
}
-static INLINE void
-sp_get_samples_3d(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+static void
+img_filter_3d_linear(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ const struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
- const struct pipe_sampler_state *sampler = samp->sampler;
- /* get/map pipe_surfaces corresponding to 3D tex slices */
- unsigned level0, level1, j, imgFilter;
+ unsigned level0, j;
int width, height, depth;
- float levelBlend;
- const uint face = 0;
-
- choose_mipmap_levels(tgsi_sampler, s, t, p,
- lodbias,
- &level0, &level1, &levelBlend, &imgFilter);
-
- assert(sampler->normalized_coords);
+ int x0[4], x1[4], y0[4], y1[4], z0[4], z1[4];
+ float xw[4], yw[4], zw[4]; /* interpolation weights */
+ level0 = samp->level;
width = texture->width[level0];
height = texture->height[level0];
depth = texture->depth[level0];
@@ -1258,323 +1034,631 @@ sp_get_samples_3d(struct tgsi_sampler *tgsi_sampler,
assert(height > 0);
assert(depth > 0);
- switch (imgFilter) {
- case PIPE_TEX_FILTER_NEAREST:
- {
- int x[4], y[4], z[4];
- nearest_texcoord_4(sampler->wrap_s, s, width, x);
- nearest_texcoord_4(sampler->wrap_t, t, height, y);
- nearest_texcoord_4(sampler->wrap_r, p, depth, z);
- for (j = 0; j < QUAD_SIZE; j++) {
- get_texel(tgsi_sampler, face, level0, x[j], y[j], z[j], rgba, j);
- if (level0 != level1) {
- /* get texels from second mipmap level and blend */
- float rgba2[4][4];
- unsigned c;
- x[j] /= 2;
- y[j] /= 2;
- z[j] /= 2;
- get_texel(tgsi_sampler, face, level1, x[j], y[j], z[j], rgba2, j);
- for (c = 0; c < NUM_CHANNELS; c++) {
- rgba[c][j] = lerp(levelBlend, rgba2[c][j], rgba[c][j]);
- }
- }
- }
- }
- break;
- case PIPE_TEX_FILTER_LINEAR:
- case PIPE_TEX_FILTER_ANISO:
- {
- int x0[4], x1[4], y0[4], y1[4], z0[4], z1[4];
- float xw[4], yw[4], zw[4]; /* interpolation weights */
- linear_texcoord_4(sampler->wrap_s, s, width, x0, x1, xw);
- linear_texcoord_4(sampler->wrap_t, t, height, y0, y1, yw);
- linear_texcoord_4(sampler->wrap_r, p, depth, z0, z1, zw);
-
- for (j = 0; j < QUAD_SIZE; j++) {
- int c;
- float tx0[4][4], tx1[4][4];
- get_texel(tgsi_sampler, face, level0, x0[j], y0[j], z0[j], tx0, 0);
- get_texel(tgsi_sampler, face, level0, x1[j], y0[j], z0[j], tx0, 1);
- get_texel(tgsi_sampler, face, level0, x0[j], y1[j], z0[j], tx0, 2);
- get_texel(tgsi_sampler, face, level0, x1[j], y1[j], z0[j], tx0, 3);
- get_texel(tgsi_sampler, face, level0, x0[j], y0[j], z1[j], tx1, 0);
- get_texel(tgsi_sampler, face, level0, x1[j], y0[j], z1[j], tx1, 1);
- get_texel(tgsi_sampler, face, level0, x0[j], y1[j], z1[j], tx1, 2);
- get_texel(tgsi_sampler, face, level0, x1[j], y1[j], z1[j], tx1, 3);
-
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_3d(xw[j], yw[j], zw[j],
- tx0[c][0], tx0[c][1],
- tx0[c][2], tx0[c][3],
- tx1[c][0], tx1[c][1],
- tx1[c][2], tx1[c][3]);
- }
+ samp->linear_texcoord_s(s, width, x0, x1, xw);
+ samp->linear_texcoord_s(t, height, y0, y1, yw);
+ samp->linear_texcoord_s(p, depth, z0, z1, zw);
- if (level0 != level1) {
- /* get texels from second mipmap level and blend */
- float rgba2[4][4];
- x0[j] /= 2;
- y0[j] /= 2;
- z0[j] /= 2;
- x1[j] /= 2;
- y1[j] /= 2;
- z1[j] /= 2;
- get_texel(tgsi_sampler, face, level1, x0[j], y0[j], z0[j], tx0, 0);
- get_texel(tgsi_sampler, face, level1, x1[j], y0[j], z0[j], tx0, 1);
- get_texel(tgsi_sampler, face, level1, x0[j], y1[j], z0[j], tx0, 2);
- get_texel(tgsi_sampler, face, level1, x1[j], y1[j], z0[j], tx0, 3);
- get_texel(tgsi_sampler, face, level1, x0[j], y0[j], z1[j], tx1, 0);
- get_texel(tgsi_sampler, face, level1, x1[j], y0[j], z1[j], tx1, 1);
- get_texel(tgsi_sampler, face, level1, x0[j], y1[j], z1[j], tx1, 2);
- get_texel(tgsi_sampler, face, level1, x1[j], y1[j], z1[j], tx1, 3);
-
- /* interpolate R, G, B, A */
- for (c = 0; c < 4; c++) {
- rgba2[c][j] = lerp_3d(xw[j], yw[j], zw[j],
- tx0[c][0], tx0[c][1],
- tx0[c][2], tx0[c][3],
- tx1[c][0], tx1[c][1],
- tx1[c][2], tx1[c][3]);
- }
-
- /* blend mipmap levels */
- for (c = 0; c < NUM_CHANNELS; c++) {
- rgba[c][j] = lerp(levelBlend, rgba[c][j], rgba2[c][j]);
- }
- }
- }
+ for (j = 0; j < QUAD_SIZE; j++) {
+ float tx0[4][4], tx1[4][4];
+ int c;
+
+ get_texel(tgsi_sampler, 0, level0, x0[j], y0[j], z0[j], tx0, 0);
+ get_texel(tgsi_sampler, 0, level0, x1[j], y0[j], z0[j], tx0, 1);
+ get_texel(tgsi_sampler, 0, level0, x0[j], y1[j], z0[j], tx0, 2);
+ get_texel(tgsi_sampler, 0, level0, x1[j], y1[j], z0[j], tx0, 3);
+ get_texel(tgsi_sampler, 0, level0, x0[j], y0[j], z1[j], tx1, 0);
+ get_texel(tgsi_sampler, 0, level0, x1[j], y0[j], z1[j], tx1, 1);
+ get_texel(tgsi_sampler, 0, level0, x0[j], y1[j], z1[j], tx1, 2);
+ get_texel(tgsi_sampler, 0, level0, x1[j], y1[j], z1[j], tx1, 3);
+
+ /* interpolate R, G, B, A */
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = lerp_3d(xw[j], yw[j], zw[j],
+ tx0[c][0], tx0[c][1],
+ tx0[c][2], tx0[c][3],
+ tx1[c][0], tx1[c][1],
+ tx1[c][2], tx1[c][3]);
}
- break;
- default:
- assert(0);
}
}
+
+
+
+
+
static void
-sp_get_samples_cube(struct tgsi_sampler *sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+mip_filter_linear(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- unsigned faces[QUAD_SIZE], j;
- float ssss[4], tttt[4];
- for (j = 0; j < QUAD_SIZE; j++) {
- faces[j] = choose_cube_face(s[j], t[j], p[j], ssss + j, tttt + j);
+ struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ const struct pipe_texture *texture = samp->texture;
+ int level0;
+ float lambda;
+
+ lambda = samp->compute_lambda(samp, s, t, p, lodbias);
+ level0 = (int)lambda;
+
+ if (lambda < 0.0) {
+ samp->level = 0;
+ samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba );
+ }
+ else if (level0 >= texture->last_level) {
+ samp->level = texture->last_level;
+ samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba );
+ }
+ else {
+ float levelBlend = lambda - level0;
+ float rgba0[4][4];
+ float rgba1[4][4];
+ int c,j;
+
+ samp->level = level0;
+ samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba0 );
+
+ samp->level = level0+1;
+ samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba1 );
+
+ for (j = 0; j < QUAD_SIZE; j++) {
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]);
+ }
+ }
}
- sp_get_samples_2d_common(sampler, ssss, tttt, NULL,
- lodbias, rgba, faces);
}
+
static void
-sp_get_samples_rect(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+mip_filter_nearest(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- const struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
+ struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct pipe_texture *texture = samp->texture;
- const struct pipe_sampler_state *sampler = samp->sampler;
- const uint face = 0;
- unsigned level0, level1, j, imgFilter;
- int width, height;
- float levelBlend;
+ float lambda;
- choose_mipmap_levels(tgsi_sampler, s, t, p,
- lodbias,
- &level0, &level1, &levelBlend, &imgFilter);
+ lambda = samp->compute_lambda(samp, s, t, p, lodbias);
- /* texture RECTS cannot be mipmapped */
- assert(level0 == level1);
+ if (lambda < 0.0) {
+ samp->level = 0;
+ samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba );
+ }
+ else {
+ samp->level = (int)(lambda + 0.5) ;
+ samp->level = MIN2(samp->level, (int)texture->last_level);
+ samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba );
+ }
+}
- width = texture->width[level0];
- height = texture->height[level0];
- assert(width > 0);
+static void
+mip_filter_none(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
+{
+ struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ float lambda = samp->compute_lambda(samp, s, t, p, lodbias);
- switch (imgFilter) {
- case PIPE_TEX_FILTER_NEAREST:
- {
- int x[4], y[4];
- nearest_texcoord_unnorm_4(sampler->wrap_s, s, width, x);
- nearest_texcoord_unnorm_4(sampler->wrap_t, t, height, y);
- for (j = 0; j < QUAD_SIZE; j++) {
- get_texel(tgsi_sampler, face, level0, x[j], y[j], 0, rgba, j);
- if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
- shadow_compare(sampler, rgba, p, j);
- }
- }
- }
- break;
- case PIPE_TEX_FILTER_LINEAR:
- case PIPE_TEX_FILTER_ANISO:
- {
- int x0[4], y0[4], x1[4], y1[4];
- float xw[4], yw[4]; /* weights */
- linear_texcoord_unnorm_4(sampler->wrap_s, s, width, x0, x1, xw);
- linear_texcoord_unnorm_4(sampler->wrap_t, t, height, y0, y1, yw);
- for (j = 0; j < QUAD_SIZE; j++) {
- float tx[4][4]; /* texels */
- int c;
- get_texel(tgsi_sampler, face, level0, x0[j], y0[j], 0, tx, 0);
- get_texel(tgsi_sampler, face, level0, x1[j], y0[j], 0, tx, 1);
- get_texel(tgsi_sampler, face, level0, x0[j], y1[j], 0, tx, 2);
- get_texel(tgsi_sampler, face, level0, x1[j], y1[j], 0, tx, 3);
- if (sampler->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
- shadow_compare4(sampler, tx, p);
- }
- for (c = 0; c < 4; c++) {
- rgba[c][j] = lerp_2d(xw[j], yw[j],
- tx[c][0], tx[c][1], tx[c][2], tx[c][3]);
- }
- }
- }
- break;
- default:
- assert(0);
+ if (lambda < 0.0) {
+ samp->mag_img_filter( tgsi_sampler, s, t, p, 0, rgba );
+ }
+ else {
+ samp->min_img_filter( tgsi_sampler, s, t, p, 0, rgba );
}
}
-/**
- * Error condition handler
+
+/* Specialized version of mip_filter_linear with hard-wired calls to
+ * 2d lambda calculation and 2d_linear_repeat_POT img filters.
*/
-static INLINE void
-sp_get_samples_null(struct tgsi_sampler *tgsi_sampler,
- const float s[QUAD_SIZE],
- const float t[QUAD_SIZE],
- const float p[QUAD_SIZE],
- float lodbias,
- float rgba[NUM_CHANNELS][QUAD_SIZE])
+static void
+mip_filter_linear_2d_linear_repeat_POT(
+ struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- int i,j;
+ struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ const struct pipe_texture *texture = samp->texture;
+ int level0;
+ float lambda;
+
+ lambda = compute_lambda_2d(samp, s, t, p, lodbias);
+ level0 = (int)lambda;
+
+ /* Catches both negative and large values of level0:
+ */
+ if ((unsigned)level0 >= texture->last_level) {
+ if (level0 < 0)
+ samp->level = 0;
+ else
+ samp->level = texture->last_level;
- for (i = 0; i < 4; i++)
- for (j = 0; j < 4; j++)
- rgba[i][j] = 1.0;
+ img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba );
+ }
+ else {
+ float levelBlend = lambda - level0;
+ float rgba0[4][4];
+ float rgba1[4][4];
+ int c,j;
+
+ samp->level = level0;
+ img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba0 );
+
+ samp->level = level0+1;
+ img_filter_2d_linear_repeat_POT( tgsi_sampler, s, t, p, 0, rgba1 );
+
+ for (j = 0; j < QUAD_SIZE; j++) {
+ for (c = 0; c < 4; c++) {
+ rgba[c][j] = lerp(levelBlend, rgba0[c][j], rgba1[c][j]);
+ }
+ }
+ }
}
-/**
- * Called via tgsi_sampler::get_samples() when using a sampler for the
- * first time. Determine the actual sampler function, link it in and
- * call it.
+
+
+/* Compare stage in the little sampling pipeline.
*/
-void
-sp_get_samples(struct tgsi_sampler *tgsi_sampler,
+static void
+sample_compare(struct tgsi_sampler *tgsi_sampler,
const float s[QUAD_SIZE],
const float t[QUAD_SIZE],
const float p[QUAD_SIZE],
float lodbias,
float rgba[NUM_CHANNELS][QUAD_SIZE])
{
- struct sp_shader_sampler *samp = sp_shader_sampler(tgsi_sampler);
- const struct pipe_texture *texture = samp->texture;
+ struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
const struct pipe_sampler_state *sampler = samp->sampler;
+ int j, k0, k1, k2, k3;
+ float val;
- /* Default to the 'undefined' case:
- */
- tgsi_sampler->get_samples = sp_get_samples_null;
+ samp->mip_filter( tgsi_sampler, s, t, p, lodbias, rgba );
- if (!texture) {
- assert(0); /* is this legal?? */
- goto out;
- }
- if (!sampler->normalized_coords) {
- assert (texture->target == PIPE_TEXTURE_2D);
- tgsi_sampler->get_samples = sp_get_samples_rect;
- goto out;
- }
+ /**
+ * Compare texcoord 'p' (aka R) against texture value 'rgba[0]'
+ * When we sampled the depth texture, the depth value was put into all
+ * RGBA channels. We look at the red channel here.
+ */
- switch (texture->target) {
- case PIPE_TEXTURE_1D:
- tgsi_sampler->get_samples = sp_get_samples_1d;
+ /* compare four texcoords vs. four texture samples */
+ switch (sampler->compare_func) {
+ case PIPE_FUNC_LESS:
+ k0 = p[0] < rgba[0][0];
+ k1 = p[1] < rgba[0][1];
+ k2 = p[2] < rgba[0][2];
+ k3 = p[3] < rgba[0][3];
break;
- case PIPE_TEXTURE_2D:
- tgsi_sampler->get_samples = sp_get_samples_2d;
+ case PIPE_FUNC_LEQUAL:
+ k0 = p[0] <= rgba[0][0];
+ k1 = p[1] <= rgba[0][1];
+ k2 = p[2] <= rgba[0][2];
+ k3 = p[3] <= rgba[0][3];
break;
- case PIPE_TEXTURE_3D:
- tgsi_sampler->get_samples = sp_get_samples_3d;
+ case PIPE_FUNC_GREATER:
+ k0 = p[0] > rgba[0][0];
+ k1 = p[1] > rgba[0][1];
+ k2 = p[2] > rgba[0][2];
+ k3 = p[3] > rgba[0][3];
break;
- case PIPE_TEXTURE_CUBE:
- tgsi_sampler->get_samples = sp_get_samples_cube;
+ case PIPE_FUNC_GEQUAL:
+ k0 = p[0] >= rgba[0][0];
+ k1 = p[1] >= rgba[0][1];
+ k2 = p[2] >= rgba[0][2];
+ k3 = p[3] >= rgba[0][3];
+ break;
+ case PIPE_FUNC_EQUAL:
+ k0 = p[0] == rgba[0][0];
+ k1 = p[1] == rgba[0][1];
+ k2 = p[2] == rgba[0][2];
+ k3 = p[3] == rgba[0][3];
+ break;
+ case PIPE_FUNC_NOTEQUAL:
+ k0 = p[0] != rgba[0][0];
+ k1 = p[1] != rgba[0][1];
+ k2 = p[2] != rgba[0][2];
+ k3 = p[3] != rgba[0][3];
+ break;
+ case PIPE_FUNC_ALWAYS:
+ k0 = k1 = k2 = k3 = 1;
+ break;
+ case PIPE_FUNC_NEVER:
+ k0 = k1 = k2 = k3 = 0;
break;
default:
+ k0 = k1 = k2 = k3 = 0;
assert(0);
break;
}
- /* Do this elsewhere:
- */
- samp->xpot = util_unsigned_logbase2( samp->texture->width[0] );
- samp->ypot = util_unsigned_logbase2( samp->texture->height[0] );
+ /* convert four pass/fail values to an intensity in [0,1] */
+ val = 0.25F * (k0 + k1 + k2 + k3);
- /* Try to hook in a faster sampler. Ultimately we'll have to
- * code-generate these. Luckily most of this looks like it is
- * orthogonal state within the sampler.
+ /* XXX returning result for default GL_DEPTH_TEXTURE_MODE = GL_LUMINANCE */
+ for (j = 0; j < 4; j++) {
+ rgba[0][j] = rgba[1][j] = rgba[2][j] = val;
+ rgba[3][j] = 1.0F;
+ }
+}
+
+/* Calculate cube faces.
+ */
+static void
+sample_cube(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE])
+{
+ struct sp_sampler_varient *samp = sp_sampler_varient(tgsi_sampler);
+ unsigned j;
+ float ssss[4], tttt[4];
+
+ /*
+ major axis
+ direction target sc tc ma
+ ---------- ------------------------------- --- --- ---
+ +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx
+ -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx
+ +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry
+ -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry
+ +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz
+ -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz
+ */
+ for (j = 0; j < QUAD_SIZE; j++) {
+ float rx = s[j];
+ float ry = t[j];
+ float rz = p[j];
+ const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz);
+ unsigned face;
+ float sc, tc, ma;
+
+ if (arx > ary && arx > arz) {
+ if (rx >= 0.0F) {
+ face = PIPE_TEX_FACE_POS_X;
+ sc = -rz;
+ tc = -ry;
+ ma = arx;
+ }
+ else {
+ face = PIPE_TEX_FACE_NEG_X;
+ sc = rz;
+ tc = -ry;
+ ma = arx;
+ }
+ }
+ else if (ary > arx && ary > arz) {
+ if (ry >= 0.0F) {
+ face = PIPE_TEX_FACE_POS_Y;
+ sc = rx;
+ tc = rz;
+ ma = ary;
+ }
+ else {
+ face = PIPE_TEX_FACE_NEG_Y;
+ sc = rx;
+ tc = -rz;
+ ma = ary;
+ }
+ }
+ else {
+ if (rz > 0.0F) {
+ face = PIPE_TEX_FACE_POS_Z;
+ sc = rx;
+ tc = -ry;
+ ma = arz;
+ }
+ else {
+ face = PIPE_TEX_FACE_NEG_Z;
+ sc = -rx;
+ tc = -ry;
+ ma = arz;
+ }
+ }
+
+ ssss[j] = ( sc / ma + 1.0F ) * 0.5F;
+ tttt[j] = ( tc / ma + 1.0F ) * 0.5F;
+ samp->faces[j] = face;
+ }
+
+ /* In our little pipeline, the compare stage is next. If compare
+ * is not active, this will point somewhere deeper into the
+ * pipeline, eg. to mip_filter or even img_filter.
*/
- if (texture->target == PIPE_TEXTURE_2D &&
- sampler->min_img_filter == sampler->mag_img_filter &&
- sampler->wrap_s == sampler->wrap_t &&
- sampler->compare_mode == FALSE &&
- sampler->normalized_coords)
- {
- if (sampler->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) {
- samp->level = CLAMP((int) sampler->min_lod,
- 0, (int) texture->last_level);
-
- if (sampler->wrap_s == PIPE_TEX_WRAP_REPEAT) {
- switch (sampler->min_img_filter) {
+ samp->compare(tgsi_sampler, ssss, tttt, NULL, lodbias, rgba);
+}
+
+
+
+
+static wrap_nearest_func get_nearest_unorm_wrap( unsigned mode )
+{
+ switch (mode) {
+ case PIPE_TEX_WRAP_CLAMP:
+ return wrap_nearest_unorm_clamp;
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+ return wrap_nearest_unorm_clamp_to_border;
+ default:
+ assert(0);
+ return wrap_nearest_unorm_clamp;
+ }
+}
+
+
+static wrap_nearest_func get_nearest_wrap( unsigned mode )
+{
+ switch (mode) {
+ case PIPE_TEX_WRAP_REPEAT:
+ return wrap_nearest_repeat;
+ case PIPE_TEX_WRAP_CLAMP:
+ return wrap_nearest_clamp;
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ return wrap_nearest_clamp_to_edge;
+ case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+ return wrap_nearest_clamp_to_border;
+ case PIPE_TEX_WRAP_MIRROR_REPEAT:
+ return wrap_nearest_mirror_repeat;
+ case PIPE_TEX_WRAP_MIRROR_CLAMP:
+ return wrap_nearest_mirror_clamp;
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
+ return wrap_nearest_mirror_clamp_to_edge;
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
+ return wrap_nearest_mirror_clamp_to_border;
+ default:
+ assert(0);
+ return wrap_nearest_repeat;
+ }
+}
+
+static wrap_linear_func get_linear_unorm_wrap( unsigned mode )
+{
+ switch (mode) {
+ case PIPE_TEX_WRAP_CLAMP:
+ return wrap_linear_unorm_clamp;
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+ return wrap_linear_unorm_clamp_to_border;
+ default:
+ assert(0);
+ return wrap_linear_unorm_clamp;
+ }
+}
+
+static wrap_linear_func get_linear_wrap( unsigned mode )
+{
+ switch (mode) {
+ case PIPE_TEX_WRAP_REPEAT:
+ return wrap_linear_repeat;
+ case PIPE_TEX_WRAP_CLAMP:
+ return wrap_linear_clamp;
+ case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
+ return wrap_linear_clamp_to_edge;
+ case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
+ return wrap_linear_clamp_to_border;
+ case PIPE_TEX_WRAP_MIRROR_REPEAT:
+ return wrap_linear_mirror_repeat;
+ case PIPE_TEX_WRAP_MIRROR_CLAMP:
+ return wrap_linear_mirror_clamp;
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
+ return wrap_linear_mirror_clamp_to_edge;
+ case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
+ return wrap_linear_mirror_clamp_to_border;
+ default:
+ assert(0);
+ return wrap_linear_repeat;
+ }
+}
+
+static compute_lambda_func get_lambda_func( const union sp_sampler_key key )
+{
+ if (key.bits.processor == TGSI_PROCESSOR_VERTEX)
+ return compute_lambda_vert;
+
+ switch (key.bits.target) {
+ case PIPE_TEXTURE_1D:
+ return compute_lambda_1d;
+ case PIPE_TEXTURE_2D:
+ return compute_lambda_2d;
+ case PIPE_TEXTURE_3D:
+ return compute_lambda_3d;
+ default:
+ assert(0);
+ return compute_lambda_1d;
+ }
+}
+
+static filter_func get_img_filter( const union sp_sampler_key key,
+ unsigned filter,
+ const struct pipe_sampler_state *sampler )
+{
+ switch (key.bits.target) {
+ case PIPE_TEXTURE_1D:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_1d_nearest;
+ else
+ return img_filter_1d_linear;
+ break;
+ case PIPE_TEXTURE_2D:
+ /* Try for fast path:
+ */
+ if (key.bits.is_pot &&
+ sampler->wrap_s == sampler->wrap_t &&
+ sampler->normalized_coords)
+ {
+ switch (sampler->wrap_s) {
+ case PIPE_TEX_WRAP_REPEAT:
+ switch (filter) {
case PIPE_TEX_FILTER_NEAREST:
- tgsi_sampler->get_samples = sp_get_samples_2d_nearest_repeat_POT;
- break;
+ return img_filter_2d_nearest_repeat_POT;
case PIPE_TEX_FILTER_LINEAR:
- tgsi_sampler->get_samples = sp_get_samples_2d_linear_repeat_POT;
- break;
+ return img_filter_2d_linear_repeat_POT;
default:
break;
}
- }
- else if (sampler->wrap_s == PIPE_TEX_WRAP_CLAMP) {
- switch (sampler->min_img_filter) {
+ break;
+ case PIPE_TEX_WRAP_CLAMP:
+ switch (filter) {
case PIPE_TEX_FILTER_NEAREST:
- tgsi_sampler->get_samples = sp_get_samples_2d_nearest_clamp_POT;
- break;
+ return img_filter_2d_nearest_clamp_POT;
default:
break;
}
}
}
- else if (sampler->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR) {
- if (sampler->wrap_s == PIPE_TEX_WRAP_REPEAT) {
- switch (sampler->min_img_filter) {
- case PIPE_TEX_FILTER_LINEAR:
- tgsi_sampler->get_samples = sp_get_samples_2d_linear_mip_linear_repeat_POT;
- break;
- default:
- break;
- }
- }
+ /* Fallthrough to default versions:
+ */
+ case PIPE_TEXTURE_CUBE:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_2d_nearest;
+ else
+ return img_filter_2d_linear;
+ break;
+ case PIPE_TEXTURE_3D:
+ if (filter == PIPE_TEX_FILTER_NEAREST)
+ return img_filter_3d_nearest;
+ else
+ return img_filter_3d_linear;
+ break;
+ default:
+ assert(0);
+ return img_filter_1d_nearest;
+ }
+}
+
+
+void
+sp_sampler_varient_bind_texture( struct sp_sampler_varient *samp,
+ struct softpipe_tile_cache *tex_cache,
+ const struct pipe_texture *texture )
+{
+ const struct pipe_sampler_state *sampler = samp->sampler;
+
+ samp->texture = texture;
+ samp->cache = tex_cache;
+ samp->xpot = util_unsigned_logbase2( texture->width[0] );
+ samp->ypot = util_unsigned_logbase2( texture->height[0] );
+ samp->level = CLAMP((int) sampler->min_lod, 0, (int) texture->last_level);
+}
+
+/* Create a sampler varient for a given set of non-orthogonal state. Currently the
+ */
+struct sp_sampler_varient *
+sp_create_sampler_varient( const struct pipe_sampler_state *sampler,
+ const union sp_sampler_key key )
+{
+ struct sp_sampler_varient *samp = CALLOC_STRUCT(sp_sampler_varient);
+ if (!samp)
+ return NULL;
+
+ samp->sampler = sampler;
+ samp->key = key;
+
+ /* Note that (for instance) linear_texcoord_s and
+ * nearest_texcoord_s may be active at the same time, if the
+ * sampler min_img_filter differs from its mag_img_filter.
+ */
+ if (sampler->normalized_coords) {
+ samp->linear_texcoord_s = get_linear_wrap( sampler->wrap_s );
+ samp->linear_texcoord_t = get_linear_wrap( sampler->wrap_t );
+ samp->linear_texcoord_p = get_linear_wrap( sampler->wrap_r );
+
+ samp->nearest_texcoord_s = get_nearest_wrap( sampler->wrap_s );
+ samp->nearest_texcoord_t = get_nearest_wrap( sampler->wrap_t );
+ samp->nearest_texcoord_p = get_nearest_wrap( sampler->wrap_r );
+ }
+ else {
+ samp->linear_texcoord_s = get_linear_unorm_wrap( sampler->wrap_s );
+ samp->linear_texcoord_t = get_linear_unorm_wrap( sampler->wrap_t );
+ samp->linear_texcoord_p = get_linear_unorm_wrap( sampler->wrap_r );
+
+ samp->nearest_texcoord_s = get_nearest_unorm_wrap( sampler->wrap_s );
+ samp->nearest_texcoord_t = get_nearest_unorm_wrap( sampler->wrap_t );
+ samp->nearest_texcoord_p = get_nearest_unorm_wrap( sampler->wrap_r );
+ }
+
+ samp->compute_lambda = get_lambda_func( key );
+
+ samp->min_img_filter = get_img_filter(key, sampler->min_img_filter, sampler);
+ samp->mag_img_filter = get_img_filter(key, sampler->min_img_filter, sampler);
+
+ switch (sampler->min_mip_filter) {
+ case PIPE_TEX_MIPFILTER_NONE:
+ if (sampler->min_img_filter == sampler->mag_img_filter)
+ samp->mip_filter = samp->min_img_filter;
+ else
+ samp->mip_filter = mip_filter_none;
+ break;
+
+ case PIPE_TEX_MIPFILTER_NEAREST:
+ samp->mip_filter = mip_filter_nearest;
+ break;
+
+ case PIPE_TEX_MIPFILTER_LINEAR:
+ if (key.bits.is_pot &&
+ sampler->min_img_filter == sampler->mag_img_filter &&
+ sampler->wrap_s == sampler->wrap_t &&
+ sampler->normalized_coords &&
+ sampler->wrap_s == sampler->wrap_t &&
+ sampler->wrap_s == PIPE_TEX_WRAP_REPEAT &&
+ sampler->min_img_filter == PIPE_TEX_FILTER_LINEAR)
+ {
+ samp->mip_filter = mip_filter_linear_2d_linear_repeat_POT;
+ }
+ else
+ {
+ samp->mip_filter = mip_filter_linear;
}
+ break;
+ }
+
+ if (sampler->compare_mode != FALSE) {
+ samp->compare = sample_compare;
+ }
+ else {
+ /* Skip compare operation by promoting the mip_filter function
+ * pointer:
+ */
+ samp->compare = samp->mip_filter;
}
- else if (0) {
- _debug_printf("target %d/%d min_mip %d/%d min_img %d/%d wrap %d/%d compare %d/%d norm %d/%d\n",
- texture->target, PIPE_TEXTURE_2D,
- sampler->min_mip_filter, PIPE_TEX_MIPFILTER_NONE,
- sampler->min_img_filter, sampler->mag_img_filter,
- sampler->wrap_s, sampler->wrap_t,
- sampler->compare_mode, FALSE,
- sampler->normalized_coords, TRUE);
+
+ if (key.bits.target == PIPE_TEXTURE_CUBE) {
+ samp->base.get_samples = sample_cube;
}
+ else {
+ samp->faces[0] = 0;
+ samp->faces[1] = 0;
+ samp->faces[2] = 0;
+ samp->faces[3] = 0;
-out:
- tgsi_sampler->get_samples( tgsi_sampler, s, t, p, lodbias, rgba );
+ /* Skip cube face determination by promoting the compare
+ * function pointer:
+ */
+ samp->base.get_samples = samp->compare;
+ }
+
+ return samp;
}
+
+
+
+
+
diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.h b/src/gallium/drivers/softpipe/sp_tex_sample.h
index c73ae44131..26f80eb88a 100644
--- a/src/gallium/drivers/softpipe/sp_tex_sample.h
+++ b/src/gallium/drivers/softpipe/sp_tex_sample.h
@@ -31,14 +31,61 @@
#include "tgsi/tgsi_exec.h"
+struct sp_sampler_varient;
+
+typedef void (*wrap_nearest_func)(const float s[4],
+ unsigned size,
+ int icoord[4]);
+
+typedef void (*wrap_linear_func)(const float s[4],
+ unsigned size,
+ int icoord0[4],
+ int icoord1[4],
+ float w[4]);
+
+typedef float (*compute_lambda_func)(const struct sp_sampler_varient *sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias);
+
+typedef void (*filter_func)(struct tgsi_sampler *tgsi_sampler,
+ const float s[QUAD_SIZE],
+ const float t[QUAD_SIZE],
+ const float p[QUAD_SIZE],
+ float lodbias,
+ float rgba[NUM_CHANNELS][QUAD_SIZE]);
+
+
+union sp_sampler_key {
+ struct {
+ unsigned target:3;
+ unsigned is_pot:1;
+ unsigned processor:2;
+ unsigned pad:26;
+ } bits;
+ unsigned value;
+};
/**
* Subclass of tgsi_sampler
*/
-struct sp_shader_sampler
+struct sp_sampler_varient
{
struct tgsi_sampler base; /**< base class */
+ union sp_sampler_key key;
+
+ /* The owner of this struct:
+ */
+ const struct pipe_sampler_state *sampler;
+
+
+ /* Currently bound texture:
+ */
+ const struct pipe_texture *texture;
+ struct softpipe_tile_cache *cache;
+
unsigned processor;
/* For sp_get_samples_2d_linear_POT:
@@ -47,22 +94,51 @@ struct sp_shader_sampler
unsigned ypot;
unsigned level;
- const struct pipe_texture *texture;
- const struct pipe_sampler_state *sampler;
+ unsigned faces[4];
+
+ wrap_nearest_func nearest_texcoord_s;
+ wrap_nearest_func nearest_texcoord_t;
+ wrap_nearest_func nearest_texcoord_p;
- struct softpipe_tile_cache *cache;
+ wrap_linear_func linear_texcoord_s;
+ wrap_linear_func linear_texcoord_t;
+ wrap_linear_func linear_texcoord_p;
+
+ filter_func min_img_filter;
+ filter_func mag_img_filter;
+
+ compute_lambda_func compute_lambda;
+
+ filter_func mip_filter;
+ filter_func compare;
+
+ /* Linked list:
+ */
+ struct sp_sampler_varient *next;
};
+struct sp_sampler;
+
+/* Create a sampler varient for a given set of non-orthogonal state. Currently the
+ */
+struct sp_sampler_varient *
+sp_create_sampler_varient( const struct pipe_sampler_state *sampler,
+ const union sp_sampler_key key );
+void sp_sampler_varient_bind_texture( struct sp_sampler_varient *varient,
+ struct softpipe_tile_cache *tex_cache,
+ const struct pipe_texture *tex );
-static INLINE struct sp_shader_sampler *
-sp_shader_sampler(const struct tgsi_sampler *sampler)
-{
- return (struct sp_shader_sampler *) sampler;
-}
+void sp_sampler_varient_destroy( struct sp_sampler_varient * );
+static INLINE struct sp_sampler_varient *
+sp_sampler_varient(const struct tgsi_sampler *sampler)
+{
+ return (struct sp_sampler_varient *) sampler;
+}
+
extern void
sp_get_samples(struct tgsi_sampler *tgsi_sampler,
const float s[QUAD_SIZE],
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 0c84375bf1..a3a54dada4 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -120,16 +120,20 @@ softpipe_displaytarget_layout(struct pipe_screen *screen,
static struct pipe_texture *
softpipe_texture_create(struct pipe_screen *screen,
- const struct pipe_texture *templat)
+ const struct pipe_texture *template)
{
struct softpipe_texture *spt = CALLOC_STRUCT(softpipe_texture);
if (!spt)
return NULL;
- spt->base = *templat;
+ spt->base = *template;
pipe_reference_init(&spt->base.reference, 1);
spt->base.screen = screen;
+ spt->pot = (util_is_power_of_two(template->width[0]) &&
+ util_is_power_of_two(template->height[0]) &&
+ util_is_power_of_two(template->depth[0]));
+
if (spt->base.tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) {
if (!softpipe_displaytarget_layout(screen, spt))
goto fail;
diff --git a/src/gallium/drivers/softpipe/sp_texture.h b/src/gallium/drivers/softpipe/sp_texture.h
index 42df722a2d..4dd0c1239e 100644
--- a/src/gallium/drivers/softpipe/sp_texture.h
+++ b/src/gallium/drivers/softpipe/sp_texture.h
@@ -48,6 +48,10 @@ struct softpipe_texture
*/
struct pipe_buffer *buffer;
+ /* True if texture images are power-of-two in all dimensions:
+ */
+ boolean pot;
+
unsigned timestamp;
};