#include "main/macros.h"
#include "main/mtypes.h"
+#include "main/glformats.h"
#include "main/samplerobj.h"
+#include "main/texobj.h"
#include "st_context.h"
#include "st_cb_texture.h"
#include "cso_cache/cso_context.h"
+#include "util/u_format.h"
+
/**
* Convert GLenum texcoord wrap tokens to pipe tokens.
}
}
-static void convert_sampler(struct st_context *st,
- struct pipe_sampler_state *sampler,
- GLuint texUnit)
-{
- struct gl_texture_object *texobj;
- struct gl_context *ctx = st->ctx;
- struct gl_sampler_object *msamp;
-
- texobj = ctx->Texture.Unit[texUnit]._Current;
- if (!texobj) {
- texobj = st_get_default_texture(st);
- }
-
- msamp = _mesa_get_samplerobj(ctx, texUnit);
-
- memset(sampler, 0, sizeof(*sampler));
- sampler->wrap_s = gl_wrap_xlate(msamp->WrapS);
- sampler->wrap_t = gl_wrap_xlate(msamp->WrapT);
- sampler->wrap_r = gl_wrap_xlate(msamp->WrapR);
-
- sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter);
- sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter);
- sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter);
-
- if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB)
- sampler->normalized_coords = 1;
-
- sampler->lod_bias = ctx->Texture.Unit[texUnit].LodBias +
- msamp->LodBias;
-
- sampler->min_lod = CLAMP(msamp->MinLod,
- 0.0f,
- (GLfloat) texobj->MaxLevel - texobj->BaseLevel);
- sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel - texobj->BaseLevel,
- msamp->MaxLod);
- if (sampler->max_lod < sampler->min_lod) {
- /* The GL spec doesn't seem to specify what to do in this case.
- * Swap the values.
- */
- float tmp = sampler->max_lod;
- sampler->max_lod = sampler->min_lod;
- sampler->min_lod = tmp;
- assert(sampler->min_lod <= sampler->max_lod);
- }
-
- if (msamp->BorderColor.ui[0] ||
- msamp->BorderColor.ui[1] ||
- msamp->BorderColor.ui[2] ||
- msamp->BorderColor.ui[3]) {
- struct gl_texture_image *teximg;
-
- teximg = texobj->Image[0][texobj->BaseLevel];
-
- st_translate_color(msamp->BorderColor.f,
- teximg ? teximg->_BaseFormat : GL_RGBA,
- sampler->border_color);
- }
-
- sampler->max_anisotropy = (msamp->MaxAnisotropy == 1.0 ?
- 0 : (GLuint) msamp->MaxAnisotropy);
-
- /* only care about ARB_shadow, not SGI shadow */
- if (msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
- sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
- sampler->compare_func
- = st_compare_func_to_pipe(msamp->CompareFunc);
- }
-
- sampler->seamless_cube_map =
- ctx->Texture.CubeMapSeamless || msamp->CubeMapSeamless;
-}
static void
-update_vertex_samplers(struct st_context *st)
+convert_sampler(struct st_context *st,
+ struct pipe_sampler_state *sampler,
+ GLuint texUnit)
{
- const struct gl_context *ctx = st->ctx;
- struct gl_vertex_program *vprog = ctx->VertexProgram._Current;
- GLuint su;
+ struct gl_texture_object *texobj;
+ struct gl_context *ctx = st->ctx;
+ struct gl_sampler_object *msamp;
- st->state.num_vertex_samplers = 0;
-
- /* loop over sampler units (aka tex image units) */
- for (su = 0; su < ctx->Const.MaxVertexTextureImageUnits; su++) {
- struct pipe_sampler_state *sampler = st->state.vertex_samplers + su;
+ texobj = ctx->Texture.Unit[texUnit]._Current;
+ if (!texobj) {
+ texobj = _mesa_get_fallback_texture(ctx, TEXTURE_2D_INDEX);
+ }
- if (vprog->Base.SamplersUsed & (1 << su)) {
- GLuint texUnit;
+ msamp = _mesa_get_samplerobj(ctx, texUnit);
+
+ memset(sampler, 0, sizeof(*sampler));
+ sampler->wrap_s = gl_wrap_xlate(msamp->WrapS);
+ sampler->wrap_t = gl_wrap_xlate(msamp->WrapT);
+ sampler->wrap_r = gl_wrap_xlate(msamp->WrapR);
+
+ sampler->min_img_filter = gl_filter_to_img_filter(msamp->MinFilter);
+ sampler->min_mip_filter = gl_filter_to_mip_filter(msamp->MinFilter);
+ sampler->mag_img_filter = gl_filter_to_img_filter(msamp->MagFilter);
+
+ if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB)
+ sampler->normalized_coords = 1;
+
+ sampler->lod_bias = ctx->Texture.Unit[texUnit].LodBias + msamp->LodBias;
+
+ sampler->min_lod = CLAMP(msamp->MinLod,
+ 0.0f,
+ (GLfloat) texobj->MaxLevel - texobj->BaseLevel);
+ sampler->max_lod = MIN2((GLfloat) texobj->MaxLevel - texobj->BaseLevel,
+ msamp->MaxLod);
+ if (sampler->max_lod < sampler->min_lod) {
+ /* The GL spec doesn't seem to specify what to do in this case.
+ * Swap the values.
+ */
+ float tmp = sampler->max_lod;
+ sampler->max_lod = sampler->min_lod;
+ sampler->min_lod = tmp;
+ assert(sampler->min_lod <= sampler->max_lod);
+ }
- texUnit = vprog->Base.SamplerUnits[su];
+ if (msamp->BorderColor.ui[0] ||
+ msamp->BorderColor.ui[1] ||
+ msamp->BorderColor.ui[2] ||
+ msamp->BorderColor.ui[3]) {
+ struct st_texture_object *stobj = st_texture_object(texobj);
+ struct gl_texture_image *teximg;
+ GLboolean is_integer = GL_FALSE;
+ union pipe_color_union border_color;
- convert_sampler(st, sampler, texUnit);
+ teximg = texobj->Image[0][texobj->BaseLevel];
- st->state.num_vertex_samplers = su + 1;
+ if (teximg) {
+ is_integer = _mesa_is_enum_format_integer(teximg->InternalFormat);
+ }
- cso_single_vertex_sampler(st->cso_context, su, sampler);
+ if (st->apply_texture_swizzle_to_border_color && stobj->sampler_view) {
+ const unsigned char swz[4] =
+ {
+ stobj->sampler_view->swizzle_r,
+ stobj->sampler_view->swizzle_g,
+ stobj->sampler_view->swizzle_b,
+ stobj->sampler_view->swizzle_a,
+ };
+
+ st_translate_color(&msamp->BorderColor,
+ &border_color,
+ teximg ? teximg->_BaseFormat : GL_RGBA, is_integer);
+
+ util_format_apply_color_swizzle(&sampler->border_color,
+ &border_color, swz, is_integer);
} else {
- cso_single_vertex_sampler(st->cso_context, su, NULL);
+ st_translate_color(&msamp->BorderColor,
+ &sampler->border_color,
+ teximg ? teximg->_BaseFormat : GL_RGBA, is_integer);
}
}
- cso_single_vertex_sampler_done(st->cso_context);
+
+ sampler->max_anisotropy = (msamp->MaxAnisotropy == 1.0 ?
+ 0 : (GLuint) msamp->MaxAnisotropy);
+
+ /* only care about ARB_shadow, not SGI shadow */
+ if (msamp->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
+ sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
+ sampler->compare_func
+ = st_compare_func_to_pipe(msamp->CompareFunc);
+ }
+
+ sampler->seamless_cube_map =
+ ctx->Texture.CubeMapSeamless || msamp->CubeMapSeamless;
}
+
+/**
+ * Update the gallium driver's sampler state for fragment, vertex or
+ * geometry shader stage.
+ */
static void
-update_fragment_samplers(struct st_context *st)
+update_shader_samplers(struct st_context *st,
+ unsigned shader_stage,
+ const struct gl_program *prog,
+ unsigned max_units,
+ struct pipe_sampler_state *samplers,
+ unsigned *num_samplers)
{
- const struct gl_context *ctx = st->ctx;
- struct gl_fragment_program *fprog = ctx->FragmentProgram._Current;
- GLuint su;
+ GLuint unit;
+ GLbitfield samplers_used;
+ const GLuint old_max = *num_samplers;
- st->state.num_samplers = 0;
+ samplers_used = prog->SamplersUsed;
- /* loop over sampler units (aka tex image units) */
- for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++) {
- struct pipe_sampler_state *sampler = st->state.samplers + su;
+ if (*num_samplers == 0 && samplers_used == 0x0)
+ return;
+ *num_samplers = 0;
- if (fprog->Base.SamplersUsed & (1 << su)) {
- GLuint texUnit;
+ /* loop over sampler units (aka tex image units) */
+ for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
+ struct pipe_sampler_state *sampler = samplers + unit;
- texUnit = fprog->Base.SamplerUnits[su];
+ if (samplers_used & 1) {
+ const GLuint texUnit = prog->SamplerUnits[unit];
- convert_sampler(st, sampler, texUnit);
+ convert_sampler(st, sampler, texUnit);
- st->state.num_samplers = su + 1;
+ *num_samplers = unit + 1;
- /*printf("%s su=%u non-null\n", __FUNCTION__, su);*/
- cso_single_sampler(st->cso_context, su, sampler);
+ cso_single_sampler(st->cso_context, shader_stage, unit, sampler);
+ }
+ else if (samplers_used != 0 || unit < old_max) {
+ cso_single_sampler(st->cso_context, shader_stage, unit, NULL);
}
else {
- /*printf("%s su=%u null\n", __FUNCTION__, su);*/
- cso_single_sampler(st->cso_context, su, NULL);
+ /* if we've reset all the old samplers and we have no more new ones */
+ break;
}
}
- cso_single_sampler_done(st->cso_context);
+ cso_single_sampler_done(st->cso_context, shader_stage);
}
+
static void
update_samplers(struct st_context *st)
{
- update_fragment_samplers(st);
- update_vertex_samplers(st);
+ const struct gl_context *ctx = st->ctx;
+
+ update_shader_samplers(st,
+ PIPE_SHADER_FRAGMENT,
+ &ctx->FragmentProgram._Current->Base,
+ ctx->Const.FragmentProgram.MaxTextureImageUnits,
+ st->state.samplers[PIPE_SHADER_FRAGMENT],
+ &st->state.num_samplers[PIPE_SHADER_FRAGMENT]);
+
+ update_shader_samplers(st,
+ PIPE_SHADER_VERTEX,
+ &ctx->VertexProgram._Current->Base,
+ ctx->Const.VertexProgram.MaxTextureImageUnits,
+ st->state.samplers[PIPE_SHADER_VERTEX],
+ &st->state.num_samplers[PIPE_SHADER_VERTEX]);
+
+ if (ctx->GeometryProgram._Current) {
+ update_shader_samplers(st,
+ PIPE_SHADER_GEOMETRY,
+ &ctx->GeometryProgram._Current->Base,
+ ctx->Const.GeometryProgram.MaxTextureImageUnits,
+ st->state.samplers[PIPE_SHADER_GEOMETRY],
+ &st->state.num_samplers[PIPE_SHADER_GEOMETRY]);
+ }
}
+
const struct st_tracked_state st_update_sampler = {
"st_update_sampler", /* name */
{ /* dirty */
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