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st/mesa: merge fragment/vertex sampler 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 819e786339
commit 8eeeef3705
1 changed files with 50 additions and 56 deletions
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106
src/mesa/state_tracker/st_atom_sampler.c
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@@ -195,88 +195,82 @@ convert_sampler(struct st_context *st,
}
/**
* Update the gallium driver's sampler state for fragment, vertex or
* geometry shader stage.
*/
static void
update_vertex_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_vertex_program *vprog = ctx->VertexProgram._Current;
GLuint su;
GLuint samplers_used = vprog->Base.SamplersUsed;
const GLuint old_max = st->state.num_vertex_samplers;
GLuint unit;
GLbitfield samplers_used;
const GLuint old_max = *num_samplers;
if (st->state.num_vertex_samplers == 0 && vprog->Base.SamplersUsed == 0)
samplers_used = prog->SamplersUsed;
if (*num_samplers == 0 && samplers_used == 0x0)
return;
st->state.num_vertex_samplers = 0;
*num_samplers = 0;
/* loop over sampler units (aka tex image units) */
for (su = 0; su < ctx->Const.MaxVertexTextureImageUnits; su++, samplers_used >>= 1) {
struct pipe_sampler_state *sampler = st->state.vertex_samplers + su;
for (unit = 0; unit < max_units; unit++, samplers_used >>= 1) {
struct pipe_sampler_state *sampler = samplers + unit;
if (samplers_used & 1) {
GLuint texUnit = vprog->Base.SamplerUnits[su];
const GLuint texUnit = prog->SamplerUnits[unit];
convert_sampler(st, sampler, texUnit);
st->state.num_vertex_samplers = su + 1;
*num_samplers = unit + 1;
cso_single_sampler(st->cso_context, PIPE_SHADER_VERTEX, su, sampler);
cso_single_sampler(st->cso_context, shader_stage, unit, sampler);
}
else if (samplers_used != 0 || su < old_max) {
cso_single_sampler(st->cso_context, PIPE_SHADER_VERTEX, su, NULL);
} else {
/* if we've reset all the old samplers and we have no more new ones */
break;
else if (samplers_used != 0 || unit < old_max) {
cso_single_sampler(st->cso_context, shader_stage, unit, NULL);
}
}
cso_single_sampler_done(st->cso_context, PIPE_SHADER_VERTEX);
}
static void
update_fragment_samplers(struct st_context *st)
{
const struct gl_context *ctx = st->ctx;
struct gl_fragment_program *fprog = ctx->FragmentProgram._Current;
GLuint su;
GLuint samplers_used = fprog->Base.SamplersUsed;
const GLuint old_max = st->state.num_fragment_samplers;
if (st->state.num_fragment_samplers == 0 && fprog->Base.SamplersUsed == 0)
return;
st->state.num_fragment_samplers = 0;
/* loop over sampler units (aka tex image units) */
for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++, samplers_used >>= 1) {
struct pipe_sampler_state *sampler = st->state.fragment_samplers + su;
if (samplers_used & 1) {
GLuint texUnit = fprog->Base.SamplerUnits[su];
convert_sampler(st, sampler, texUnit);
st->state.num_fragment_samplers = su + 1;
cso_single_sampler(st->cso_context, PIPE_SHADER_FRAGMENT, su, sampler);
}
else if (samplers_used != 0 || su < old_max) {
cso_single_sampler(st->cso_context, PIPE_SHADER_FRAGMENT, su, NULL);
} else {
else {
/* if we've reset all the old samplers and we have no more new ones */
break;
}
}
cso_single_sampler_done(st->cso_context, PIPE_SHADER_FRAGMENT);
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.MaxTextureImageUnits,
st->state.fragment_samplers,
&st->state.num_fragment_samplers);
update_shader_samplers(st,
PIPE_SHADER_VERTEX,
&ctx->VertexProgram._Current->Base,
ctx->Const.MaxVertexTextureImageUnits,
st->state.vertex_samplers,
&st->state.num_vertex_samplers);
/*
update_shader_samplers(st,
PIPE_SHADER_GEOMETRY,
&ctx->GeometryProgram._Current->Base,
ctx->Const.MaxGeometryTextureImageUnits,
st->state.geometry_samplers,
&st->state.num_geometry_samplers);
*/
}