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llvmpipe: do some null pointer checking

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This commit is contained in:
Brian Paul
2010-05-04 13:23:41 -06:00
parent 0671c6b589
commit 477b0d838b
1 changed files with 22 additions and 17 deletions
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39
src/gallium/drivers/llvmpipe/lp_setup.c
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@@ -644,16 +644,19 @@ lp_setup_update_state( struct lp_setup_context *setup )
stored = lp_scene_alloc_aligned(scene, 4 * 16, 16);
/* smear each blend color component across 16 ubyte elements */
for (i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (j = 0; j < 16; ++j)
stored[i*16 + j] = c;
if (stored) {
/* smear each blend color component across 16 ubyte elements */
for (i = 0; i < 4; ++i) {
uint8_t c = float_to_ubyte(setup->blend_color.current.color[i]);
for (j = 0; j < 16; ++j)
stored[i*16 + j] = c;
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.blend_color = setup->blend_color.stored;
}
setup->blend_color.stored = stored;
setup->fs.current.jit_context.blend_color = setup->blend_color.stored;
setup->dirty |= LP_SETUP_NEW_FS;
}
@@ -662,17 +665,19 @@ lp_setup_update_state( struct lp_setup_context *setup )
stored = lp_scene_alloc_aligned(scene, 4 * sizeof(int32_t), 16);
stored[0] = (float) setup->scissor.current.minx;
stored[1] = (float) setup->scissor.current.miny;
stored[2] = (float) setup->scissor.current.maxx;
stored[3] = (float) setup->scissor.current.maxy;
if (stored) {
stored[0] = (float) setup->scissor.current.minx;
stored[1] = (float) setup->scissor.current.miny;
stored[2] = (float) setup->scissor.current.maxx;
stored[3] = (float) setup->scissor.current.maxy;
setup->scissor.stored = stored;
setup->scissor.stored = stored;
setup->fs.current.jit_context.scissor_xmin = stored[0];
setup->fs.current.jit_context.scissor_ymin = stored[1];
setup->fs.current.jit_context.scissor_xmax = stored[2];
setup->fs.current.jit_context.scissor_ymax = stored[3];
setup->fs.current.jit_context.scissor_xmin = stored[0];
setup->fs.current.jit_context.scissor_ymin = stored[1];
setup->fs.current.jit_context.scissor_xmax = stored[2];
setup->fs.current.jit_context.scissor_ymax = stored[3];
}
setup->dirty |= LP_SETUP_NEW_FS;
}