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i965g: Fix assertions that were always true.

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The surface_format field is 9 bits wide which has a maximum value
of 511. BRW_SURFACEFORMAT_INVALID has a value of 4095 which exceeds
the width of the surface_format field.

This patch asserts that the format is not BRW_SURFACEFORMAT_INVALID
before assignment to the surface_format field.
This commit is contained in:
Vinson Lee 2010-02-21 01:19:47 -08:00
parent d1aafb33b5
commit 0b83f48e82
1 changed files with 10 additions and 4 deletions
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14
src/gallium/drivers/i965/brw_screen_texture.c
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@ -191,6 +191,7 @@ static struct pipe_texture *brw_texture_create( struct pipe_screen *screen,
struct brw_texture *tex;
enum brw_buffer_type buffer_type;
enum pipe_error ret;
GLuint format;
tex = CALLOC_STRUCT(brw_texture);
if (tex == NULL)
@ -248,8 +249,10 @@ static struct pipe_texture *brw_texture_create( struct pipe_screen *screen,
tex->ss.ss0.mipmap_layout_mode = BRW_SURFACE_MIPMAPLAYOUT_BELOW;
tex->ss.ss0.surface_type = translate_tex_target(tex->base.target);
tex->ss.ss0.surface_format = translate_tex_format(tex->base.format);
assert(tex->ss.ss0.surface_format != BRW_SURFACEFORMAT_INVALID);
format = translate_tex_target(tex->base.format);
assert(format != BRW_SURFACEFORMAT_INVALID);
tex->ss.ss0.surface_format = format;
/* This is ok for all textures with channel width 8bit or less:
*/
@ -474,6 +477,7 @@ brw_texture_blanket_winsys_buffer(struct pipe_screen *screen,
{
struct brw_screen *bscreen = brw_screen(screen);
struct brw_texture *tex;
GLuint format;
if (templ->target != PIPE_TEXTURE_2D ||
templ->last_level != 0 ||
@ -518,8 +522,10 @@ brw_texture_blanket_winsys_buffer(struct pipe_screen *screen,
tex->ss.ss0.mipmap_layout_mode = BRW_SURFACE_MIPMAPLAYOUT_BELOW;
tex->ss.ss0.surface_type = translate_tex_target(tex->base.target);
tex->ss.ss0.surface_format = translate_tex_format(tex->base.format);
assert(tex->ss.ss0.surface_format != BRW_SURFACEFORMAT_INVALID);
format = translate_tex_format(tex->base.format);
assert(format != BRW_SURFACEFORMAT_INVALID);
tex->ss.ss0.surface_format = format;
/* This is ok for all textures with channel width 8bit or less:
*/