static void
update_textures(struct st_context *st)
{
struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current;
struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
const GLbitfield samplersUsed = (vprog->Base.SamplersUsed |
fprog->Base.SamplersUsed);
GLuint su;
st->state.num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) {
struct pipe_texture *pt = NULL;
if (samplersUsed & (1 << su)) {
struct gl_texture_object *texObj;
struct st_texture_object *stObj;
GLboolean flush, retval;
GLuint texUnit;
if (fprog->Base.SamplersUsed & (1 << su))
texUnit = fprog->Base.SamplerUnits[su];
else
texUnit = vprog->Base.SamplerUnits[su];
texObj = st->ctx->Texture.Unit[texUnit]._Current;
if (!texObj) {
texObj = st_get_default_texture(st);
}
stObj = st_texture_object(texObj);
retval = st_finalize_texture(st->ctx, st->pipe, texObj, &flush);
if (!retval) {
/* out of mem */
continue;
}
st->state.num_textures = su + 1;
pt = st_get_stobj_texture(stObj);
}
/*
if (pt) {
printf("%s su=%u non-null\n", __FUNCTION__, su);
}
else {
printf("%s su=%u null\n", __FUNCTION__, su);
}
*/
pipe_texture_reference(&st->state.sampler_texture[su], pt);
}
cso_set_sampler_textures(st->cso_context,
st->state.num_textures,
st->state.sampler_texture);
}
static void
update_samplers(struct st_context *st)
{
struct gl_vertex_program *vprog = st->ctx->VertexProgram._Current;
struct gl_fragment_program *fprog = st->ctx->FragmentProgram._Current;
const GLbitfield samplersUsed = (vprog->Base.SamplersUsed |
fprog->Base.SamplersUsed);
GLuint su;
st->state.num_samplers = 0;
/* loop over sampler units (aka tex image units) */
for (su = 0; su < st->ctx->Const.MaxTextureImageUnits; su++) {
struct pipe_sampler_state *sampler = st->state.samplers + su;
memset(sampler, 0, sizeof(*sampler));
if (samplersUsed & (1 << su)) {
struct gl_texture_object *texobj;
struct gl_texture_image *teximg;
GLuint texUnit;
if (fprog->Base.SamplersUsed & (1 << su))
texUnit = fprog->Base.SamplerUnits[su];
else
texUnit = vprog->Base.SamplerUnits[su];
texobj = st->ctx->Texture.Unit[texUnit]._Current;
if (!texobj) {
texobj = st_get_default_texture(st);
}
teximg = texobj->Image[0][texobj->BaseLevel];
sampler->wrap_s = gl_wrap_xlate(texobj->WrapS);
sampler->wrap_t = gl_wrap_xlate(texobj->WrapT);
sampler->wrap_r = gl_wrap_xlate(texobj->WrapR);
sampler->min_img_filter = gl_filter_to_img_filter(texobj->MinFilter);
sampler->min_mip_filter = gl_filter_to_mip_filter(texobj->MinFilter);
sampler->mag_img_filter = gl_filter_to_img_filter(texobj->MagFilter);
if (texobj->Target != GL_TEXTURE_RECTANGLE_ARB)
sampler->normalized_coords = 1;
sampler->lod_bias = st->ctx->Texture.Unit[su].LodBias;
sampler->min_lod = MAX2(0.0f, texobj->MinLod);
sampler->max_lod = MIN2(texobj->MaxLevel - texobj->BaseLevel,
texobj->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);
}
xlate_border_color(texobj->BorderColor,
teximg ? teximg->_BaseFormat : GL_RGBA,
sampler->border_color);
sampler->max_anisotropy = texobj->MaxAnisotropy;
if (sampler->max_anisotropy > 1.0) {
sampler->min_img_filter = PIPE_TEX_FILTER_ANISO;
sampler->mag_img_filter = PIPE_TEX_FILTER_ANISO;
}
/* only care about ARB_shadow, not SGI shadow */
if (texobj->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
sampler->compare_func
= st_compare_func_to_pipe(texobj->CompareFunc);
}
st->state.num_samplers = su + 1;
/*printf("%s su=%u non-null\n", __FUNCTION__, su);*/
cso_single_sampler(st->cso_context, su, sampler);
}
else {
/*printf("%s su=%u null\n", __FUNCTION__, su);*/
cso_single_sampler(st->cso_context, su, NULL);
}
}
cso_single_sampler_done(st->cso_context);
}
