diff options
| author | Brian Paul <[email protected]> | 2012-01-19 10:20:24 -0700 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2012-07-06 10:08:58 -0700 |
| commit | 2bf8f39cc83df5cd4c1183fcca294cef57a92ca8 (patch) | |
| tree | 070aa28188532bed8af3e6755e24db5517280889 /src | |
| parent | 5c65bcd259109b812f83c4400ee4e748ef7f2bb8 (diff) | |
st/mesa: copy num_immediates field when copying the immediates array
Two assignments to num_immediates were missing in
get_pixel_transfer_visitor() and get_bitmap_visitor().
The uninitialized value led to valgrind errors and crashes in some
cases.
Added new assertions to catch future problems in this area. Also
changed num_immediates to unsigned to avoid signed/unsigned
comparison warnings.
NOTE: This is a candidate for the 8.0 branch.
Reviewed-by: José Fonseca <[email protected]>
(cherry picked from commit fdae0eaf222f271bfbc7e71d8561eb8b90685ae5)
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index ec8b1d154f2..e50f55cd158 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -357,7 +357,7 @@ public: /** List of immediate_storage */ exec_list immediates; - int num_immediates; + unsigned num_immediates; /** List of function_entry */ exec_list function_signatures; @@ -3645,6 +3645,7 @@ get_pixel_transfer_visitor(struct st_fragment_program *fp, v->indirect_addr_temps = original->indirect_addr_temps; v->indirect_addr_consts = original->indirect_addr_consts; memcpy(&v->immediates, &original->immediates, sizeof(v->immediates)); + v->num_immediates = original->num_immediates; /* * Get initial pixel color from the texture. @@ -3775,6 +3776,7 @@ get_bitmap_visitor(struct st_fragment_program *fp, v->indirect_addr_temps = original->indirect_addr_temps; v->indirect_addr_consts = original->indirect_addr_consts; memcpy(&v->immediates, &original->immediates, sizeof(v->immediates)); + v->num_immediates = original->num_immediates; /* TEX tmp0, fragment.texcoord[0], texture[0], 2D; */ coord = st_src_reg(PROGRAM_INPUT, FRAG_ATTRIB_TEX0, glsl_type::vec2_type); @@ -4679,8 +4681,10 @@ st_translate_program( i = 0; foreach_iter(exec_list_iterator, iter, program->immediates) { immediate_storage *imm = (immediate_storage *)iter.get(); + assert(i < program->num_immediates); t->immediates[i++] = emit_immediate(t, imm->values, imm->type, imm->size); } + assert(i == program->num_immediates); /* texture samplers */ for (i = 0; i < ctx->Const.MaxTextureImageUnits; i++) { |