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authorBrian Paul <[email protected]>2002-03-16 18:02:07 +0000
committerBrian Paul <[email protected]>2002-03-16 18:02:07 +0000
commit31f12f504e61cb2ad65b8890a68eb7154edcb64b (patch)
treeb053c091613eabf44359e7dfa4e542f3bc1ebaae /src/mesa/swrast/s_aatritemp.h
parentbc6b60c4ff81c4d677251e4c7262c0df26cda6a6 (diff)
New mipmap lambda calculation. Previously, trilinear filtering could
result in _very_ blurry textures. Still need to do some optimization of the new code in s_span.c
Diffstat (limited to 'src/mesa/swrast/s_aatritemp.h')
-rw-r--r--src/mesa/swrast/s_aatritemp.h23
1 files changed, 13 insertions, 10 deletions
diff --git a/src/mesa/swrast/s_aatritemp.h b/src/mesa/swrast/s_aatritemp.h
index 90b8fe74e31..2fd59b23233 100644
--- a/src/mesa/swrast/s_aatritemp.h
+++ b/src/mesa/swrast/s_aatritemp.h
@@ -1,4 +1,4 @@
-/* $Id: s_aatritemp.h,v 1.26 2002/01/28 03:42:28 brianp Exp $ */
+/* $Id: s_aatritemp.h,v 1.27 2002/03/16 18:02:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -76,10 +76,10 @@
GLfloat sPlane[4], tPlane[4], uPlane[4], vPlane[4];
GLfloat texWidth, texHeight;
#elif defined(DO_MULTITEX)
- GLfloat sPlane[MAX_TEXTURE_UNITS][4];
- GLfloat tPlane[MAX_TEXTURE_UNITS][4];
- GLfloat uPlane[MAX_TEXTURE_UNITS][4];
- GLfloat vPlane[MAX_TEXTURE_UNITS][4];
+ GLfloat sPlane[MAX_TEXTURE_UNITS][4]; /* texture S */
+ GLfloat tPlane[MAX_TEXTURE_UNITS][4]; /* texture T */
+ GLfloat uPlane[MAX_TEXTURE_UNITS][4]; /* texture R */
+ GLfloat vPlane[MAX_TEXTURE_UNITS][4]; /* texture Q */
GLfloat texWidth[MAX_TEXTURE_UNITS], texHeight[MAX_TEXTURE_UNITS];
#endif
GLfloat bf = SWRAST_CONTEXT(ctx)->_backface_sign;
@@ -316,7 +316,8 @@
span.texcoords[0][count][0] = solve_plane(cx, cy, sPlane) * invQ;
span.texcoords[0][count][1] = solve_plane(cx, cy, tPlane) * invQ;
span.texcoords[0][count][2] = solve_plane(cx, cy, uPlane) * invQ;
- span.lambda[0][count] = compute_lambda(sPlane, tPlane, invQ,
+ span.lambda[0][count] = compute_lambda(sPlane, tPlane, vPlane,
+ cx, cy, invQ,
texWidth, texHeight);
}
#elif defined(DO_MULTITEX)
@@ -329,7 +330,8 @@
span.texcoords[unit][count][1] = solve_plane(cx, cy, tPlane[unit]) * invQ;
span.texcoords[unit][count][2] = solve_plane(cx, cy, uPlane[unit]) * invQ;
span.lambda[unit][count] = compute_lambda(sPlane[unit],
- tPlane[unit], invQ, texWidth[unit], texHeight[unit]);
+ tPlane[unit], vPlane[unit], cx, cy, invQ,
+ texWidth[unit], texHeight[unit]);
}
}
}
@@ -419,8 +421,8 @@
span.texcoords[0][ix][0] = solve_plane(cx, cy, sPlane) * invQ;
span.texcoords[0][ix][1] = solve_plane(cx, cy, tPlane) * invQ;
span.texcoords[0][ix][2] = solve_plane(cx, cy, uPlane) * invQ;
- span.lambda[0][ix] = compute_lambda(sPlane, tPlane, invQ,
- texWidth, texHeight);
+ span.lambda[0][ix] = compute_lambda(sPlane, tPlane, vPlane,
+ cx, cy, invQ, texWidth, texHeight);
}
#elif defined(DO_MULTITEX)
{
@@ -433,7 +435,8 @@
span.texcoords[unit][ix][2] = solve_plane(cx, cy, uPlane[unit]) * invQ;
span.lambda[unit][ix] = compute_lambda(sPlane[unit],
tPlane[unit],
- invQ,
+ vPlane[unit],
+ cx, cy, invQ,
texWidth[unit],
texHeight[unit]);
}