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svga: check that we don't exceed temp register limit

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And assert on the register index in dst_register().  The dest can
only be an output or temp reg and there's more of the later.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2011-11-17 16:36:26 -07:00
parent a1482b21cb
commit f12f67c00a
2 changed files with 6 additions and 0 deletions
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4
src/gallium/drivers/svga/svga_tgsi.c
View file

@ -290,6 +290,10 @@ svga_tgsi_translate( const struct svga_shader *shader,
emit.nr_hw_float_const = (emit.imm_start + emit.info.file_max[TGSI_FILE_IMMEDIATE] + 1);
emit.nr_hw_temp = emit.info.file_max[TGSI_FILE_TEMPORARY] + 1;
if (emit.nr_hw_temp >= SVGA3D_TEMPREG_MAX)
goto fail;
emit.in_main_func = TRUE;
if (!svga_shader_emit_header( &emit ))

2
src/gallium/drivers/svga/svga_tgsi_emit.h
View file

@ -266,6 +266,8 @@ dst_register( unsigned file,
assert(number < (1 << 11));
assert(file <= SVGA3DREG_PREDICATE);
assert(number < SVGA3D_TEMPREG_MAX);
dest.value = 0;
dest.num = number;
dest.type_upper = file >> 3;