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Diffstat (limited to 'src/mesa/swrast/s_texture.c')
-rw-r--r--src/mesa/swrast/s_texture.c278
1 files changed, 138 insertions, 140 deletions
diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index 00d0f3f5d27..ca3918e99a7 100644
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -1,4 +1,4 @@
-/* $Id: s_texture.c,v 1.79 2003/02/06 13:44:55 brianp Exp $ */
+/* $Id: s_texture.c,v 1.80 2003/02/23 04:10:54 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -812,7 +812,7 @@ sample_1d_linear(GLcontext *ctx,
static void
sample_1d_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -828,7 +828,7 @@ sample_1d_nearest_mipmap_nearest(GLcontext *ctx,
static void
sample_1d_linear_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -855,7 +855,7 @@ sample_1d_linear_mipmap_nearest(GLcontext *ctx,
static void
sample_1d_nearest_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -885,7 +885,7 @@ sample_1d_nearest_mipmap_linear(GLcontext *ctx,
static void
sample_1d_linear_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -915,7 +915,7 @@ sample_1d_linear_mipmap_linear(GLcontext *ctx,
static void
sample_nearest_1d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4] )
{
GLuint i;
@@ -931,7 +931,7 @@ sample_nearest_1d( GLcontext *ctx, GLuint texUnit,
static void
sample_linear_1d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4] )
{
GLuint i;
@@ -951,7 +951,7 @@ sample_linear_1d( GLcontext *ctx, GLuint texUnit,
static void
sample_lambda_1d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4],
+ const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint minStart, minEnd; /* texels with minification */
@@ -1264,7 +1264,7 @@ sample_2d_linear_repeat(GLcontext *ctx,
static void
sample_2d_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -1280,7 +1280,7 @@ sample_2d_nearest_mipmap_nearest(GLcontext *ctx,
static void
sample_2d_linear_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -1297,7 +1297,7 @@ sample_2d_linear_mipmap_nearest(GLcontext *ctx,
static void
sample_2d_nearest_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -1328,7 +1328,7 @@ sample_2d_nearest_mipmap_linear(GLcontext *ctx,
static void
sample_2d_linear_mipmap_linear( GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint i;
@@ -1357,7 +1357,7 @@ sample_2d_linear_mipmap_linear( GLcontext *ctx,
static void
sample_2d_linear_mipmap_linear_repeat( GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint i;
@@ -1388,7 +1388,7 @@ sample_2d_linear_mipmap_linear_repeat( GLcontext *ctx,
static void
sample_nearest_2d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4],
+ const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint i;
@@ -1404,7 +1404,7 @@ sample_nearest_2d( GLcontext *ctx, GLuint texUnit,
static void
sample_linear_2d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4],
+ const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint i;
@@ -1427,7 +1427,7 @@ sample_linear_2d( GLcontext *ctx, GLuint texUnit,
static void
opt_sample_rgb_2d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoords[][4],
+ GLuint n, const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
const struct gl_texture_image *img = tObj->Image[tObj->BaseLevel];
@@ -1466,7 +1466,7 @@ opt_sample_rgb_2d( GLcontext *ctx, GLuint texUnit,
static void
opt_sample_rgba_2d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoords[][4],
+ GLuint n, const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
const struct gl_texture_image *img = tObj->Image[tObj->BaseLevel];
@@ -1499,7 +1499,7 @@ opt_sample_rgba_2d( GLcontext *ctx, GLuint texUnit,
static void
sample_lambda_2d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoords[][4],
+ GLuint n, const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
const struct gl_texture_image *tImg = tObj->Image[tObj->BaseLevel];
@@ -1545,7 +1545,8 @@ sample_lambda_2d( GLcontext *ctx, GLuint texUnit,
NULL, rgba + minStart);
break;
case GL_NEAREST_MIPMAP_NEAREST:
- sample_2d_nearest_mipmap_nearest(ctx, tObj, m, texcoords + minStart,
+ sample_2d_nearest_mipmap_nearest(ctx, tObj, m,
+ texcoords + minStart,
lambda + minStart, rgba + minStart);
break;
case GL_LINEAR_MIPMAP_NEAREST:
@@ -1844,7 +1845,7 @@ sample_3d_linear(GLcontext *ctx,
static void
sample_3d_nearest_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint i;
@@ -1859,7 +1860,7 @@ sample_3d_nearest_mipmap_nearest(GLcontext *ctx,
static void
sample_3d_linear_mipmap_nearest(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -1875,7 +1876,7 @@ sample_3d_linear_mipmap_nearest(GLcontext *ctx,
static void
sample_3d_nearest_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -1904,7 +1905,7 @@ sample_3d_nearest_mipmap_linear(GLcontext *ctx,
static void
sample_3d_linear_mipmap_linear(GLcontext *ctx,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -1933,7 +1934,7 @@ sample_3d_linear_mipmap_linear(GLcontext *ctx,
static void
sample_nearest_3d(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4])
{
GLuint i;
@@ -1949,7 +1950,7 @@ sample_nearest_3d(GLcontext *ctx, GLuint texUnit,
static void
sample_linear_3d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4],
+ const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4] )
{
GLuint i;
@@ -1968,7 +1969,7 @@ sample_linear_3d( GLcontext *ctx, GLuint texUnit,
static void
sample_lambda_3d( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4] )
{
GLuint minStart, minEnd; /* texels with minification */
@@ -2119,7 +2120,7 @@ choose_cube_face(const struct gl_texture_object *texObj,
static void
sample_nearest_cube(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4])
{
GLuint i;
@@ -2137,7 +2138,7 @@ sample_nearest_cube(GLcontext *ctx, GLuint texUnit,
static void
sample_linear_cube(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4],
+ const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -2155,7 +2156,7 @@ sample_linear_cube(GLcontext *ctx, GLuint texUnit,
static void
sample_cube_nearest_mipmap_nearest(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -2174,7 +2175,7 @@ sample_cube_nearest_mipmap_nearest(GLcontext *ctx, GLuint texUnit,
static void
sample_cube_linear_mipmap_nearest(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -2193,7 +2194,7 @@ sample_cube_linear_mipmap_nearest(GLcontext *ctx, GLuint texUnit,
static void
sample_cube_nearest_mipmap_linear(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -2225,7 +2226,7 @@ sample_cube_nearest_mipmap_linear(GLcontext *ctx, GLuint texUnit,
static void
sample_cube_linear_mipmap_linear(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj,
- GLuint n, GLfloat texcoord[][4],
+ GLuint n, const GLfloat texcoord[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
GLuint i;
@@ -2257,7 +2258,7 @@ sample_cube_linear_mipmap_linear(GLcontext *ctx, GLuint texUnit,
static void
sample_lambda_cube( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4])
{
GLuint minStart, minEnd; /* texels with minification */
@@ -2330,7 +2331,7 @@ sample_lambda_cube( GLcontext *ctx, GLuint texUnit,
static void
sample_nearest_rect(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4])
{
const struct gl_texture_image *img = tObj->Image[0];
@@ -2385,7 +2386,7 @@ sample_nearest_rect(GLcontext *ctx, GLuint texUnit,
static void
sample_linear_rect(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4],
+ const GLfloat texcoords[][4],
const GLfloat lambda[], GLchan rgba[][4])
{
const struct gl_texture_image *img = tObj->Image[0];
@@ -2473,7 +2474,7 @@ sample_linear_rect(GLcontext *ctx, GLuint texUnit,
static void
sample_lambda_rect( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4])
{
GLuint minStart, minEnd, magStart, magEnd;
@@ -2514,7 +2515,7 @@ sample_lambda_rect( GLcontext *ctx, GLuint texUnit,
static void
sample_depth_texture( GLcontext *ctx, GLuint unit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan texel[][4] )
{
const GLint baseLevel = tObj->BaseLevel;
@@ -2804,7 +2805,7 @@ sample_depth_texture( GLcontext *ctx, GLuint unit,
static void
sample_depth_texture2(const GLcontext *ctx,
const struct gl_texture_unit *texUnit,
- GLuint n, GLfloat texcoords[][4],
+ GLuint n, const GLfloat texcoords[][4],
GLchan texel[][4])
{
const struct gl_texture_object *texObj = texUnit->_Current;
@@ -2896,13 +2897,22 @@ sample_depth_texture2(const GLcontext *ctx,
/**
* We use this function when a texture object is in an "incomplete" state.
+ * When a fragment program attempts to sample an incomplete texture we
+ * return black.
+ * Note: frag progs don't observe texture enable/disable flags.
*/
static void
null_sample_func( GLcontext *ctx, GLuint texUnit,
const struct gl_texture_object *tObj, GLuint n,
- GLfloat texcoords[][4], const GLfloat lambda[],
+ const GLfloat texcoords[][4], const GLfloat lambda[],
GLchan rgba[][4])
{
+ (void) ctx;
+ (void) texUnit;
+ (void) tObj;
+ (void) texcoords;
+ (void) lambda;
+ _mesa_bzero(rgba, n * 4 * sizeof(GLchan));
}
@@ -2910,115 +2920,103 @@ null_sample_func( GLcontext *ctx, GLuint texUnit,
/**
* Setup the texture sampling function for this texture object.
*/
-void
-_swrast_choose_texture_sample_func( GLcontext *ctx, GLuint texUnit,
+texture_sample_func
+_swrast_choose_texture_sample_func( GLcontext *ctx,
const struct gl_texture_object *t )
{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
+ const GLboolean needLambda = (GLboolean) (t->MinFilter != t->MagFilter);
+ const GLenum format = t->Image[t->BaseLevel]->Format;
if (!t->Complete) {
- swrast->TextureSample[texUnit] = null_sample_func;
+ return null_sample_func;
}
- else {
- const GLboolean needLambda = (GLboolean) (t->MinFilter != t->MagFilter);
- const GLenum format = t->Image[t->BaseLevel]->Format;
- if (needLambda) {
- /* Compute min/mag filter threshold */
- if (t->MagFilter == GL_LINEAR
- && (t->MinFilter == GL_NEAREST_MIPMAP_NEAREST ||
- t->MinFilter == GL_NEAREST_MIPMAP_LINEAR)) {
- swrast->_MinMagThresh[texUnit] = 0.5F;
+ switch (t->Target) {
+ case GL_TEXTURE_1D:
+ if (format == GL_DEPTH_COMPONENT) {
+ return sample_depth_texture;
+ }
+ else if (needLambda) {
+ return sample_lambda_1d;
+ }
+ else if (t->MinFilter == GL_LINEAR) {
+ return sample_linear_1d;
+ }
+ else {
+ ASSERT(t->MinFilter == GL_NEAREST);
+ return sample_nearest_1d;
+ }
+ break;
+ case GL_TEXTURE_2D:
+ if (format == GL_DEPTH_COMPONENT) {
+ return sample_depth_texture;
+ }
+ else if (needLambda) {
+ return sample_lambda_2d;
+ }
+ else if (t->MinFilter == GL_LINEAR) {
+ return sample_linear_2d;
+ }
+ else {
+ GLint baseLevel = t->BaseLevel;
+ ASSERT(t->MinFilter == GL_NEAREST);
+ if (t->WrapS == GL_REPEAT &&
+ t->WrapT == GL_REPEAT &&
+ t->Image[baseLevel]->Border == 0 &&
+ t->Image[baseLevel]->TexFormat->MesaFormat == MESA_FORMAT_RGB) {
+ return opt_sample_rgb_2d;
+ }
+ else if (t->WrapS == GL_REPEAT &&
+ t->WrapT == GL_REPEAT &&
+ t->Image[baseLevel]->Border == 0 &&
+ t->Image[baseLevel]->TexFormat->MesaFormat == MESA_FORMAT_RGBA) {
+ return opt_sample_rgba_2d;
}
else {
- swrast->_MinMagThresh[texUnit] = 0.0F;
+ return sample_nearest_2d;
}
}
-
- switch (t->Target) {
- case GL_TEXTURE_1D:
- if (format == GL_DEPTH_COMPONENT) {
- swrast->TextureSample[texUnit] = sample_depth_texture;
- }
- else if (needLambda) {
- swrast->TextureSample[texUnit] = sample_lambda_1d;
- }
- else if (t->MinFilter == GL_LINEAR) {
- swrast->TextureSample[texUnit] = sample_linear_1d;
- }
- else {
- ASSERT(t->MinFilter == GL_NEAREST);
- swrast->TextureSample[texUnit] = sample_nearest_1d;
- }
- break;
- case GL_TEXTURE_2D:
- if (format == GL_DEPTH_COMPONENT) {
- swrast->TextureSample[texUnit] = sample_depth_texture;
- }
- else if (needLambda) {
- swrast->TextureSample[texUnit] = sample_lambda_2d;
- }
- else if (t->MinFilter == GL_LINEAR) {
- swrast->TextureSample[texUnit] = sample_linear_2d;
- }
- else {
- GLint baseLevel = t->BaseLevel;
- ASSERT(t->MinFilter == GL_NEAREST);
- if (t->WrapS == GL_REPEAT &&
- t->WrapT == GL_REPEAT &&
- t->Image[baseLevel]->Border == 0 &&
- t->Image[baseLevel]->TexFormat->MesaFormat == MESA_FORMAT_RGB) {
- swrast->TextureSample[texUnit] = opt_sample_rgb_2d;
- }
- else if (t->WrapS == GL_REPEAT &&
- t->WrapT == GL_REPEAT &&
- t->Image[baseLevel]->Border == 0 &&
- t->Image[baseLevel]->TexFormat->MesaFormat == MESA_FORMAT_RGBA) {
- swrast->TextureSample[texUnit] = opt_sample_rgba_2d;
- }
- else
- swrast->TextureSample[texUnit] = sample_nearest_2d;
- }
- break;
- case GL_TEXTURE_3D:
- if (needLambda) {
- swrast->TextureSample[texUnit] = sample_lambda_3d;
- }
- else if (t->MinFilter == GL_LINEAR) {
- swrast->TextureSample[texUnit] = sample_linear_3d;
- }
- else {
- ASSERT(t->MinFilter == GL_NEAREST);
- swrast->TextureSample[texUnit] = sample_nearest_3d;
- }
- break;
- case GL_TEXTURE_CUBE_MAP:
- if (needLambda) {
- swrast->TextureSample[texUnit] = sample_lambda_cube;
- }
- else if (t->MinFilter == GL_LINEAR) {
- swrast->TextureSample[texUnit] = sample_linear_cube;
- }
- else {
- ASSERT(t->MinFilter == GL_NEAREST);
- swrast->TextureSample[texUnit] = sample_nearest_cube;
- }
- break;
- case GL_TEXTURE_RECTANGLE_NV:
- if (needLambda) {
- swrast->TextureSample[texUnit] = sample_lambda_rect;
- }
- else if (t->MinFilter == GL_LINEAR) {
- swrast->TextureSample[texUnit] = sample_linear_rect;
- }
- else {
- ASSERT(t->MinFilter == GL_NEAREST);
- swrast->TextureSample[texUnit] = sample_nearest_rect;
- }
- break;
- default:
- _mesa_problem(ctx, "invalid target in _swrast_choose_texture_sample_func");
+ break;
+ case GL_TEXTURE_3D:
+ if (needLambda) {
+ return sample_lambda_3d;
+ }
+ else if (t->MinFilter == GL_LINEAR) {
+ return sample_linear_3d;
+ }
+ else {
+ ASSERT(t->MinFilter == GL_NEAREST);
+ return sample_nearest_3d;
+ }
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ if (needLambda) {
+ return sample_lambda_cube;
+ }
+ else if (t->MinFilter == GL_LINEAR) {
+ return sample_linear_cube;
+ }
+ else {
+ ASSERT(t->MinFilter == GL_NEAREST);
+ return sample_nearest_cube;
+ }
+ break;
+ case GL_TEXTURE_RECTANGLE_NV:
+ if (needLambda) {
+ return sample_lambda_rect;
+ }
+ else if (t->MinFilter == GL_LINEAR) {
+ return sample_linear_rect;
+ }
+ else {
+ ASSERT(t->MinFilter == GL_NEAREST);
+ return sample_nearest_rect;
}
+ break;
+ default:
+ _mesa_problem(ctx,
+ "invalid target in _swrast_choose_texture_sample_func");
+ return null_sample_func;
}
}
@@ -4170,9 +4168,9 @@ _swrast_texture_span( GLcontext *ctx, struct sw_span *span )
}
/* Sample the texture (span->end fragments) */
- swrast->TextureSample[unit]( ctx, unit, texUnit->_Current,
- span->end, span->array->texcoords[unit],
- lambda, texels );
+ swrast->TextureSample[unit]( ctx, unit, texUnit->_Current, span->end,
+ (const GLfloat (*)[4]) span->array->texcoords[unit],
+ lambda, texels );
/* GL_SGI_texture_color_table */
if (texUnit->ColorTableEnabled) {
_swrast_texture_table_lookup(&texUnit->ColorTable, span->end, texels);