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authormarha <marha@users.sourceforge.net>2012-02-13 08:47:19 +0100
committermarha <marha@users.sourceforge.net>2012-02-13 08:47:19 +0100
commiteaa70945cb3f1a432b8c505ecede9ebc7769f36d (patch)
tree8e44ff4da739e384a2c6a34c1b42ecfb8e212344 /mesalib/src/mesa/state_tracker/st_atom_texture.c
parent474621addc25cb22865c54b70ffbec07c82eb04c (diff)
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libX11 libxcb mesa xserver mkfontscale git update 13 feb 2012
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_texture.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_atom_texture.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_texture.c b/mesalib/src/mesa/state_tracker/st_atom_texture.c
index d241527cc..e8941da8d 100644
--- a/mesalib/src/mesa/state_tracker/st_atom_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_atom_texture.c
@@ -300,24 +300,31 @@ update_fragment_textures(struct st_context *st)
const struct gl_context *ctx = st->ctx;
struct gl_fragment_program *fprog = ctx->FragmentProgram._Current;
GLuint su;
+ int old_max = st->state.num_textures;
+ GLbitfield samplers_used = fprog->Base.SamplersUsed;
st->state.num_textures = 0;
/* loop over sampler units (aka tex image units) */
- for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++) {
+ for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++, samplers_used >>= 1) {
struct pipe_sampler_view *sampler_view = NULL;
- if (fprog->Base.SamplersUsed & (1 << su)) {
+
+ if (samplers_used & 1) {
GLboolean retval;
GLuint texUnit;
- texUnit = fprog->Base.SamplerUnits[su];
+ texUnit = fprog->Base.SamplerUnits[su];
- retval = update_single_texture(st, &sampler_view, texUnit);
- if (retval == GL_FALSE)
- continue;
+ retval = update_single_texture(st, &sampler_view, texUnit);
+ if (retval == GL_FALSE)
+ continue;
st->state.num_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.sampler_views[su], sampler_view);
}