diff options
Diffstat (limited to 'src/mesa/state_tracker/st_atom_texture.c')
| -rw-r--r-- | src/mesa/state_tracker/st_atom_texture.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c index 69f9f1d458e..b35f470773f 100644 --- a/src/mesa/state_tracker/st_atom_texture.c +++ b/src/mesa/state_tracker/st_atom_texture.c @@ -260,16 +260,19 @@ update_vertex_textures(struct st_context *st) 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; - if (!vprog->Base.SamplersUsed && st->state.num_vertex_textures == 0) + if (samplers_used == 0x0 && old_max == 0) return; st->state.num_vertex_textures = 0; /* loop over sampler units (aka tex image units) */ - for (su = 0; su < ctx->Const.MaxTextureImageUnits; su++) { + for (su = 0; su < ctx->Const.MaxVertexTextureImageUnits; su++, samplers_used >>= 1) { struct pipe_sampler_view *sampler_view = NULL; - if (vprog->Base.SamplersUsed & (1 << su)) { + + if (samplers_used & 1) { GLboolean retval; GLuint texUnit; @@ -280,7 +283,11 @@ update_vertex_textures(struct st_context *st) continue; st->state.num_vertex_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.vertex_sampler_views[su], sampler_view); } @@ -302,9 +309,12 @@ 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_fragment_textures; + 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) */ |