diff options
| author | José Fonseca <jfonseca@vmware.com> | 2011-02-14 10:36:07 +0000 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2011-02-14 10:56:48 +0000 |
| commit | 07eb660fc92b63213b542d47671b0d944286b77a (patch) | |
| tree | 1645858d7ce8ff095321d8a148c7de1615a7eb9b /src/gallium/auxiliary | |
| parent | 9305e93114542632384eb38da08018b4b9d1ab96 (diff) | |
draw: Don't define the last two mipmap levels in aa lines.
Some hardware needs to make a seperate copy of all levels to obey
max_lod, so simply do not define the last two levels instead of
clamping.
Diffstat (limited to 'src/gallium/auxiliary')
| -rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_aaline.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_aaline.c b/src/gallium/auxiliary/draw/draw_pipe_aaline.c index af4cea8594..32af29ae14 100644 --- a/src/gallium/auxiliary/draw/draw_pipe_aaline.c +++ b/src/gallium/auxiliary/draw/draw_pipe_aaline.c @@ -55,9 +55,16 @@ /** + * Size for the alpha texture used for antialiasing + */ +#define TEXTURE_SIZE_LOG2 5 /* 32 x 32 */ + +/** * Max texture level for the alpha texture used for antialiasing + * + * Don't use the 1x1 and 2x2 mipmap levels. */ -#define MAX_TEXTURE_LEVEL 5 /* 32 x 32 */ +#define MAX_TEXTURE_LEVEL (TEXTURE_SIZE_LOG2 - 2) /** @@ -403,8 +410,8 @@ aaline_create_texture(struct aaline_stage *aaline) texTemp.target = PIPE_TEXTURE_2D; texTemp.format = PIPE_FORMAT_A8_UNORM; /* XXX verify supported by driver! */ texTemp.last_level = MAX_TEXTURE_LEVEL; - texTemp.width0 = 1 << MAX_TEXTURE_LEVEL; - texTemp.height0 = 1 << MAX_TEXTURE_LEVEL; + texTemp.width0 = 1 << TEXTURE_SIZE_LOG2; + texTemp.height0 = 1 << TEXTURE_SIZE_LOG2; texTemp.depth0 = 1; texTemp.array_size = 1; texTemp.bind = PIPE_BIND_SAMPLER_VIEW; @@ -498,8 +505,7 @@ aaline_create_sampler(struct aaline_stage *aaline) sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR; sampler.normalized_coords = 1; sampler.min_lod = 0.0f; - /* avoid using the 1x1 and 2x2 mipmap levels */ - sampler.max_lod = MAX_TEXTURE_LEVEL - 2; + sampler.max_lod = MAX_TEXTURE_LEVEL; aaline->sampler_cso = pipe->create_sampler_state(pipe, &sampler); if (aaline->sampler_cso == NULL) |