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softpipe: remove the 32bits limitation on depth(-stencil) formats

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This patch remove the 32bits limitation. As a side effect, it bring the support for the GL_ARB_depth_buffer_float extension.
No regression have been found on piglit, and all tests for GL_ARB_depth_buffer_float pass successfully.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Morgan Armand
2011-12-07 21:30:48 +01:00
committed by Dave Airlie
parent 2ae591bdf1
commit e763b6e788
6 changed files with 91 additions and 21 deletions
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18
src/gallium/drivers/softpipe/sp_tile_cache.c
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@@ -268,7 +268,7 @@ clear_tile_rgba(struct softpipe_cached_tile *tile,
static void
clear_tile(struct softpipe_cached_tile *tile,
enum pipe_format format,
uint clear_value)
uint64_t clear_value)
{
uint i, j;
@@ -295,7 +295,19 @@ clear_tile(struct softpipe_cached_tile *tile,
else {
for (i = 0; i < TILE_SIZE; i++) {
for (j = 0; j < TILE_SIZE; j++) {
tile->data.color32[i][j] = clear_value;
tile->data.depth32[i][j] = clear_value;
}
}
}
break;
case 8:
if (clear_value == 0) {
memset(tile->data.any, 0, 8 * TILE_SIZE * TILE_SIZE);
}
else {
for (i = 0; i < TILE_SIZE; i++) {
for (j = 0; j < TILE_SIZE; j++) {
tile->data.depth64[i][j] = clear_value;
}
}
}
@@ -601,7 +613,7 @@ sp_find_cached_tile(struct softpipe_tile_cache *tc,
void
sp_tile_cache_clear(struct softpipe_tile_cache *tc,
const union pipe_color_union *color,
uint clearValue)
uint64_t clearValue)
{
uint pos;