diff options
author | Ian Romanick <[email protected]> | 2008-07-25 18:31:44 -0700 |
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committer | Ian Romanick <[email protected]> | 2008-07-25 18:31:44 -0700 |
commit | 1e645b365900cf1c71ca5594bd6b549a1f203040 (patch) | |
tree | d114e55df428550c9829acf929b9fb7bcb89c429 /src/mesa/swrast/s_fragprog.c | |
parent | e5022c3fdf9888857f22f9a1690035ff3f90d36b (diff) | |
parent | 9bc9e0ecb0fb2069b2c123e665eb2118e358098f (diff) |
Merge branch 'master' into drm-gem
Conflicts:
src/mesa/drivers/dri/common/dri_bufmgr.c
src/mesa/drivers/dri/i965/brw_wm_surface_state.c
Diffstat (limited to 'src/mesa/swrast/s_fragprog.c')
-rw-r--r-- | src/mesa/swrast/s_fragprog.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/src/mesa/swrast/s_fragprog.c b/src/mesa/swrast/s_fragprog.c index ecace9c5025..bf7a1de03bc 100644 --- a/src/mesa/swrast/s_fragprog.c +++ b/src/mesa/swrast/s_fragprog.c @@ -44,7 +44,8 @@ fetch_texel_lod( GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda, SWcontext *swrast = SWRAST_CONTEXT(ctx); const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current; - lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod); + if (texObj) + lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod); /* XXX use a float-valued TextureSample routine here!!! */ swrast->TextureSample[unit](ctx, texObj, 1, (const GLfloat (*)[4]) texcoord, @@ -68,20 +69,23 @@ fetch_texel_deriv( GLcontext *ctx, const GLfloat texcoord[4], { SWcontext *swrast = SWRAST_CONTEXT(ctx); const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current; - const struct gl_texture_image *texImg = texObj->Image[0][texObj->BaseLevel]; - const GLfloat texW = (GLfloat) texImg->WidthScale; - const GLfloat texH = (GLfloat) texImg->HeightScale; + GLfloat lambda; GLchan rgba[4]; - GLfloat lambda - = _swrast_compute_lambda(texdx[0], texdy[0], /* ds/dx, ds/dy */ - texdx[1], texdy[1], /* dt/dx, dt/dy */ - texdx[3], texdy[2], /* dq/dx, dq/dy */ - texW, texH, - texcoord[0], texcoord[1], texcoord[3], - 1.0F / texcoord[3]) + lodBias; + if (texObj) { + const struct gl_texture_image *texImg = texObj->Image[0][texObj->BaseLevel]; + const GLfloat texW = (GLfloat) texImg->WidthScale; + const GLfloat texH = (GLfloat) texImg->HeightScale; - lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod); + lambda = _swrast_compute_lambda(texdx[0], texdy[0], /* ds/dx, ds/dy */ + texdx[1], texdy[1], /* dt/dx, dt/dy */ + texdx[3], texdy[2], /* dq/dx, dq/dy */ + texW, texH, + texcoord[0], texcoord[1], texcoord[3], + 1.0F / texcoord[3]) + lodBias; + + lambda = CLAMP(lambda, texObj->MinLod, texObj->MaxLod); + } swrast->TextureSample[unit](ctx, texObj, 1, (const GLfloat (*)[4]) texcoord, &lambda, &rgba); |