diff options
| author | Nicolai Haehnle <[email protected]> | 2007-03-24 19:08:26 +0100 |
|---|---|---|
| committer | Nicolai Haehnle <[email protected]> | 2007-03-24 19:09:44 +0100 |
| commit | f27991c9165450872c652e2fd27811409957b2a0 (patch) | |
| tree | e9e5e8d3023498c04c2b04fe5dce9a554d10f2e0 /src/mesa/drivers/dri/r300/r300_context.h | |
| parent | 0c3ae2ea7fbb9c1087bdbc1048c380ca760b80d2 (diff) | |
r300: Fix texture coordinate calculation for rectangle textures
R300 hardware takes texcoords in the range 0..1 even for rectangle
textures. Previously, the necessary texcoord conversion was applied
to the texture coordinate during vertex processing in a render stage.
This is obviously wrong when fragment programs are used, which can
calculate arbitrary coordinates for TEX instructions. Therefore,
we now inject an appropriate MUL instruction before a TEX that
reference a rectangle texture.
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_context.h')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_context.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_context.h b/src/mesa/drivers/dri/r300/r300_context.h index fa0f55446be..c8b81d98497 100644 --- a/src/mesa/drivers/dri/r300/r300_context.h +++ b/src/mesa/drivers/dri/r300/r300_context.h @@ -553,6 +553,7 @@ struct r300_stencilbuffer_state { #define VSF_MAX_FRAGMENT_TEMPS (14) #define STATE_R300_WINDOW_DIMENSION (STATE_INTERNAL_DRIVER+0) +#define STATE_R300_TEXRECT_FACTOR (STATE_INTERNAL_DRIVER+1) struct r300_vertex_shader_fragment { int length; |