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st/mesa: merge fragment/vertex texture update code

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Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul
2012-08-06 08:35:20 -06:00
parent dd6aafcf72
commit 2aac0d145a
1 changed files with 42 additions and 58 deletions
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100
src/mesa/state_tracker/st_atom_texture.c
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@@ -254,51 +254,66 @@ update_single_texture(struct st_context *st,
}
static void
update_vertex_textures(struct st_context *st)
update_textures(struct st_context *st,
unsigned shader_stage,
const struct gl_program *prog,
unsigned max_units,
struct pipe_sampler_view **sampler_views,
unsigned *num_textures)
{
const struct gl_context *ctx = st->ctx;
struct gl_vertex_program *vprog = ctx->VertexProgram._Current;
GLuint su;
const GLuint old_max = st->state.num_vertex_textures;
GLbitfield samplers_used = vprog->Base.SamplersUsed;
const GLuint old_max = *num_textures;
GLbitfield samplers_used = prog->SamplersUsed;
GLuint unit;
if (samplers_used == 0x0 && old_max == 0)
return;
st->state.num_vertex_textures = 0;
*num_textures = 0;
/* loop over sampler units (aka tex image units) */
for (su = 0; su < ctx->Const.MaxVertexTextureImageUnits; su++, samplers_used >>= 1) {
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
const GLuint texUnit = prog->SamplerUnits[unit];
GLboolean retval;
GLuint texUnit;
texUnit = vprog->Base.SamplerUnits[su];
retval = update_single_texture(st, &sampler_view, texUnit);
if (retval == GL_FALSE)
continue;
st->state.num_vertex_textures = su + 1;
} else if (samplers_used == 0 && su >= old_max) {
*num_textures = unit + 1;
}
else if (samplers_used == 0 && unit >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&st->state.vertex_sampler_views[su],
sampler_view);
pipe_sampler_view_reference(&(sampler_views[unit]), sampler_view);
}
cso_set_sampler_views(st->cso_context,
shader_stage,
MIN2(*num_textures, max_units),
sampler_views);
}
static void
update_vertex_textures(struct st_context *st)
{
const struct gl_context *ctx = st->ctx;
if (ctx->Const.MaxVertexTextureImageUnits > 0) {
GLuint numUnits = MIN2(st->state.num_vertex_textures,
ctx->Const.MaxVertexTextureImageUnits);
cso_set_sampler_views(st->cso_context,
PIPE_SHADER_VERTEX,
numUnits,
st->state.vertex_sampler_views);
update_textures(st,
PIPE_SHADER_VERTEX,
&ctx->VertexProgram._Current->Base,
ctx->Const.MaxVertexTextureImageUnits,
st->state.vertex_sampler_views,
&st->state.num_vertex_textures);
}
}
@@ -307,44 +322,13 @@ static void
update_fragment_textures(struct st_context *st)
{
const struct gl_context *ctx = st->ctx;
struct gl_fragment_program *fprog = ctx->FragmentProgram._Current;
GLuint su;
const GLuint old_max = st->state.num_fragment_textures;
GLbitfield samplers_used = fprog->Base.SamplersUsed;
if (samplers_used == 0x0 && old_max == 0)
return;
st->state.num_fragment_textures = 0;
/* loop over sampler units (aka tex image units) */
for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
if (samplers_used & 1) {
GLboolean retval;
GLuint texUnit;
texUnit = fprog->Base.SamplerUnits[su];
retval = update_single_texture(st, &sampler_view, texUnit);
if (retval == GL_FALSE)
continue;
st->state.num_fragment_textures = su + 1;
} else if (samplers_used == 0 && su >= old_max) {
/* if we've reset all the old views and we have no more new ones */
break;
}
pipe_sampler_view_reference(&st->state.fragment_sampler_views[su],
sampler_view);
}
cso_set_sampler_views(st->cso_context,
PIPE_SHADER_FRAGMENT,
st->state.num_fragment_textures,
st->state.fragment_sampler_views);
update_textures(st,
PIPE_SHADER_FRAGMENT,
&ctx->FragmentProgram._Current->Base,
ctx->Const.MaxTextureImageUnits,
st->state.fragment_sampler_views,
&st->state.num_fragment_textures);
}