1D convolution (and post-conv scale/bias) were inadvertantly applied to 2D image...

[mesa.git] / src / mesa / swrast / s_texfilter.c

diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c
index 0f086835f7ba8c1682610364e3108253ddc24c28..b2c5574d95d06a782d0af290e41152502ba734f6 100644 (file)
--- a/src/mesa/swrast/s_texfilter.c
+++ b/src/mesa/swrast/s_texfilter.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5
+ * Version:  6.5.2
  *
- * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -590,13 +590,13 @@ compute_min_mag_ranges(const struct gl_texture_object *tObj,
    }
 #endif /* DEBUG */
 
-   if (lambda[0] <= minMagThresh && lambda[n-1] <= minMagThresh) {
+   if (lambda[0] <= minMagThresh && (n <= 1 || lambda[n-1] <= minMagThresh)) {
       /* magnification for whole span */
       *magStart = 0;
       *magEnd = n;
       *minStart = *minEnd = 0;
    }
-   else if (lambda[0] > minMagThresh && lambda[n-1] > minMagThresh) {
+   else if (lambda[0] > minMagThresh && (n <=1 || lambda[n-1] > minMagThresh)) {
       /* minification for whole span */
       *minStart = 0;
       *minEnd = n;
@@ -1038,6 +1038,8 @@ sample_2d_linear_repeat(GLcontext *ctx,
    GLfloat a, b;
    GLchan t00[4], t10[4], t01[4], t11[4]; /* sampled texel colors */
 
+   (void) ctx;
+
    ASSERT(tObj->WrapS == GL_REPEAT);
    ASSERT(tObj->WrapT == GL_REPEAT);
    ASSERT(img->Border == 0);
@@ -1194,7 +1196,9 @@ sample_linear_2d( GLcontext *ctx,
    GLuint i;
    struct gl_texture_image *image = tObj->Image[0][tObj->BaseLevel];
    (void) lambda;
-   if (tObj->WrapS == GL_REPEAT && tObj->WrapT == GL_REPEAT) {
+   if (tObj->WrapS == GL_REPEAT &&
+       tObj->WrapT == GL_REPEAT &&
+       image->_IsPowerOfTwo) {
       for (i=0;i<n;i++) {
          sample_2d_linear_repeat(ctx, tObj, image, texcoords[i], rgba[i]);
       }
@@ -2239,8 +2243,8 @@ sample_depth_texture( GLcontext *ctx,
 {
    const GLint baseLevel = tObj->BaseLevel;
    const struct gl_texture_image *img = tObj->Image[0][baseLevel];
-   const GLuint width = img->Width;
-   const GLuint height = img->Height;
+   const GLint width = img->Width;
+   const GLint height = img->Height;
    GLchan ambient;
    GLenum function;
    GLchan result;
@@ -2285,7 +2289,12 @@ sample_depth_texture( GLcontext *ctx,
          /* XXX fix for texture rectangle! */
          COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, texcoords[i][0], width, col);
          COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, texcoords[i][1], height, row);
-         img->FetchTexelf(img, col, row, 0, &depthSample);
+         if (col >= 0 && row >= 0 && col < width && row < height) {
+            img->FetchTexelf(img, col, row, 0, &depthSample);
+         }
+         else {
+            depthSample = tObj->BorderColor[0];
+         }
 
          switch (function) {
          case GL_LEQUAL:
@@ -2373,25 +2382,25 @@ sample_depth_texture( GLcontext *ctx,
 
          /* get four depth samples from the texture */
          if (useBorderTexel & (I0BIT | J0BIT)) {
-            depth00 = 1.0;
+            depth00 = tObj->BorderColor[0];
          }
          else {
             img->FetchTexelf(img, i0, j0, 0, &depth00);
          }
          if (useBorderTexel & (I1BIT | J0BIT)) {
-            depth10 = 1.0;
+            depth10 = tObj->BorderColor[0];
          }
          else {
             img->FetchTexelf(img, i1, j0, 0, &depth10);
          }
          if (useBorderTexel & (I0BIT | J1BIT)) {
-            depth01 = 1.0;
+            depth01 = tObj->BorderColor[0];
          }
          else {
             img->FetchTexelf(img, i0, j1, 0, &depth01);
          }
          if (useBorderTexel & (I1BIT | J1BIT)) {
-            depth11 = 1.0;
+            depth11 = tObj->BorderColor[0];
          }
          else {
             img->FetchTexelf(img, i1, j1, 0, &depth11);