summaryrefslogtreecommitdiff
path: root/src/mesa/swrast
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/swrast')
-rw-r--r--src/mesa/swrast/s_texture.c839
-rw-r--r--src/mesa/swrast/s_triangle.c50
-rw-r--r--src/mesa/swrast/s_tritemp.h4
3 files changed, 301 insertions, 592 deletions
diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index 1123cdcdaf..80fd98b70f 100644
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -1,4 +1,4 @@
-/* $Id: s_texture.c,v 1.8 2001/01/06 22:46:13 gareth Exp $ */
+/* $Id: s_texture.c,v 1.9 2001/02/06 21:42:49 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -39,62 +39,6 @@
-
-/*
- * Paletted texture sampling.
- * Input: tObj - the texture object
- * index - the palette index (8-bit only)
- * Output: red, green, blue, alpha - the texel color
- */
-static void
-palette_sample(const struct gl_texture_object *tObj,
- GLint index, GLchan rgba[4] )
-{
- GLcontext *ctx = _mesa_get_current_context(); /* THIS IS A HACK */
- const GLchan *palette;
- GLenum format;
-
- if (ctx->Texture.SharedPalette) {
- ASSERT(!ctx->Texture.Palette.FloatTable);
- palette = (const GLchan *) ctx->Texture.Palette.Table;
- format = ctx->Texture.Palette.Format;
- }
- else {
- ASSERT(!tObj->Palette.FloatTable);
- palette = (const GLchan *) tObj->Palette.Table;
- format = tObj->Palette.Format;
- }
-
- switch (format) {
- case GL_ALPHA:
- rgba[ACOMP] = palette[index];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = palette[index];
- return;
- case GL_LUMINANCE_ALPHA:
- rgba[RCOMP] = palette[(index << 1) + 0];
- rgba[ACOMP] = palette[(index << 1) + 1];
- return;
- case GL_RGB:
- rgba[RCOMP] = palette[index * 3 + 0];
- rgba[GCOMP] = palette[index * 3 + 1];
- rgba[BCOMP] = palette[index * 3 + 2];
- return;
- case GL_RGBA:
- rgba[RCOMP] = palette[(index << 2) + 0];
- rgba[GCOMP] = palette[(index << 2) + 1];
- rgba[BCOMP] = palette[(index << 2) + 2];
- rgba[ACOMP] = palette[(index << 2) + 3];
- return;
- default:
- gl_problem(NULL, "Bad palette format in palette_sample");
- }
-}
-
-
-
/*
* These values are used in the fixed-point arithmetic used
* for linear filtering.
@@ -215,74 +159,16 @@ palette_sample(const struct gl_texture_object *tObj,
/* 1-D Texture Sampling Functions */
/**********************************************************************/
-
-/*
- * Given 1-D texture image and an (i) texel column coordinate, return the
- * texel color.
- */
-static void
-get_1d_texel( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img, GLint i,
- GLchan rgba[4] )
-{
- const GLchan *texel;
-
-#ifdef DEBUG
- GLint width = img->Width;
- assert(i >= 0);
- assert(i < width);
-#endif
-
- switch (img->Format) {
- case GL_COLOR_INDEX:
- {
- GLint index = img->Data[i];
- palette_sample(tObj, index, rgba);
- return;
- }
- case GL_ALPHA:
- rgba[ACOMP] = img->Data[ i ];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = img->Data[ i ];
- return;
- case GL_LUMINANCE_ALPHA:
- texel = img->Data + i * 2;
- rgba[RCOMP] = texel[0];
- rgba[ACOMP] = texel[1];
- return;
- case GL_RGB:
- texel = img->Data + i * 3;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- return;
- case GL_RGBA:
- texel = img->Data + i * 4;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- rgba[ACOMP] = texel[3];
- return;
- default:
- gl_problem(NULL, "Bad format in get_1d_texel");
- return;
- }
-}
-
-
-
/*
* Return the texture sample for coordinate (s) using GL_NEAREST filter.
*/
static void
-sample_1d_nearest( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLfloat s, GLchan rgba[4] )
+sample_1d_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ const struct gl_texture_image *img,
+ GLfloat s, GLchan rgba[4])
{
const GLint width = img->Width2; /* without border, power of two */
- const GLchan *texel;
GLint i;
COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, s, width, i);
@@ -290,42 +176,7 @@ sample_1d_nearest( const struct gl_texture_object *tObj,
/* skip over the border, if any */
i += img->Border;
- /* Get the texel */
- switch (img->Format) {
- case GL_COLOR_INDEX:
- {
- GLint index = img->Data[i];
- palette_sample(tObj, index, rgba );
- return;
- }
- case GL_ALPHA:
- rgba[ACOMP] = img->Data[i];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = img->Data[i];
- return;
- case GL_LUMINANCE_ALPHA:
- texel = img->Data + i * 2;
- rgba[RCOMP] = texel[0];
- rgba[ACOMP] = texel[1];
- return;
- case GL_RGB:
- texel = img->Data + i * 3;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- return;
- case GL_RGBA:
- texel = img->Data + i * 4;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- rgba[ACOMP] = texel[3];
- return;
- default:
- gl_problem(NULL, "Bad format in sample_1d_nearest");
- }
+ (*img->FetchTexel)(ctx, tObj, img, i, 0, 0, rgba);
}
@@ -334,9 +185,10 @@ sample_1d_nearest( const struct gl_texture_object *tObj,
* Return the texture sample for coordinate (s) using GL_LINEAR filter.
*/
static void
-sample_1d_linear( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLfloat s, GLchan rgba[4] )
+sample_1d_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ const struct gl_texture_image *img,
+ GLfloat s, GLchan rgba[4])
{
const GLint width = img->Width2;
GLint i0, i1;
@@ -367,13 +219,13 @@ sample_1d_linear( const struct gl_texture_object *tObj,
COPY_CHAN4(t0, tObj->BorderColor);
}
else {
- get_1d_texel( tObj, img, i0, t0 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, 0, 0, t0);
}
if (useBorderColor & I1BIT) {
COPY_CHAN4(t1, tObj->BorderColor);
}
else {
- get_1d_texel( tObj, img, i1, t1 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, 0, 0, t1);
}
rgba[0] = (GLchan) ((w0 * t0[0] + w1 * t1[0]) >> WEIGHT_SHIFT);
@@ -385,45 +237,48 @@ sample_1d_linear( const struct gl_texture_object *tObj,
static void
-sample_1d_nearest_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat lambda,
- GLchan rgba[4] )
+sample_1d_nearest_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
- sample_1d_nearest( tObj, tObj->Image[level], s, rgba );
+ sample_1d_nearest(ctx, tObj, tObj->Image[level], s, rgba);
}
static void
-sample_1d_linear_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat lambda,
- GLchan rgba[4] )
+sample_1d_linear_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
- sample_1d_linear( tObj, tObj->Image[level], s, rgba );
+ sample_1d_linear(ctx, tObj, tObj->Image[level], s, rgba);
}
static void
-sample_1d_nearest_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat lambda,
- GLchan rgba[4] )
+sample_1d_nearest_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level);
if (level >= tObj->_MaxLevel) {
- sample_1d_nearest( tObj, tObj->Image[tObj->_MaxLevel], s, rgba );
+ sample_1d_nearest(ctx, tObj, tObj->Image[tObj->_MaxLevel], s, rgba);
}
else {
GLchan t0[4], t1[4];
const GLfloat f = FRAC(lambda);
- sample_1d_nearest( tObj, tObj->Image[level ], s, t0 );
- sample_1d_nearest( tObj, tObj->Image[level+1], s, t1 );
+ sample_1d_nearest(ctx, tObj, tObj->Image[level ], s, t0);
+ sample_1d_nearest(ctx, tObj, tObj->Image[level+1], s, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -434,22 +289,23 @@ sample_1d_nearest_mipmap_linear( const struct gl_texture_object *tObj,
static void
-sample_1d_linear_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat lambda,
- GLchan rgba[4] )
+sample_1d_linear_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level);
if (level >= tObj->_MaxLevel) {
- sample_1d_linear( tObj, tObj->Image[tObj->_MaxLevel], s, rgba );
+ sample_1d_linear(ctx, tObj, tObj->Image[tObj->_MaxLevel], s, rgba);
}
else {
GLchan t0[4], t1[4];
const GLfloat f = FRAC(lambda);
- sample_1d_linear( tObj, tObj->Image[level ], s, t0 );
- sample_1d_linear( tObj, tObj->Image[level+1], s, t1 );
+ sample_1d_linear(ctx, tObj, tObj->Image[level ], s, t0);
+ sample_1d_linear(ctx, tObj, tObj->Image[level+1], s, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -472,7 +328,7 @@ sample_nearest_1d( GLcontext *ctx, GLuint texUnit,
(void) u;
(void) lambda;
for (i=0;i<n;i++) {
- sample_1d_nearest( tObj, image, s[i], rgba[i] );
+ sample_1d_nearest(ctx, tObj, image, s[i], rgba[i]);
}
}
@@ -491,7 +347,7 @@ sample_linear_1d( GLcontext *ctx, GLuint texUnit,
(void) u;
(void) lambda;
for (i=0;i<n;i++) {
- sample_1d_linear( tObj, image, s[i], rgba[i] );
+ sample_1d_linear(ctx, tObj, image, s[i], rgba[i]);
}
}
@@ -519,22 +375,28 @@ sample_lambda_1d( GLcontext *ctx, GLuint texUnit,
/* minification */
switch (tObj->MinFilter) {
case GL_NEAREST:
- sample_1d_nearest( tObj, tObj->Image[tObj->BaseLevel], s[i], rgba[i] );
+ sample_1d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], rgba[i]);
break;
case GL_LINEAR:
- sample_1d_linear( tObj, tObj->Image[tObj->BaseLevel], s[i], rgba[i] );
+ sample_1d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], rgba[i]);
break;
case GL_NEAREST_MIPMAP_NEAREST:
- sample_1d_nearest_mipmap_nearest( tObj, lambda[i], s[i], rgba[i] );
+ sample_1d_nearest_mipmap_nearest(ctx, tObj, lambda[i], s[i],
+ rgba[i]);
break;
case GL_LINEAR_MIPMAP_NEAREST:
- sample_1d_linear_mipmap_nearest( tObj, s[i], lambda[i], rgba[i] );
+ sample_1d_linear_mipmap_nearest(ctx, tObj, s[i], lambda[i],
+ rgba[i]);
break;
case GL_NEAREST_MIPMAP_LINEAR:
- sample_1d_nearest_mipmap_linear( tObj, s[i], lambda[i], rgba[i] );
+ sample_1d_nearest_mipmap_linear(ctx, tObj, s[i], lambda[i],
+ rgba[i]);
break;
case GL_LINEAR_MIPMAP_LINEAR:
- sample_1d_linear_mipmap_linear( tObj, s[i], lambda[i], rgba[i] );
+ sample_1d_linear_mipmap_linear(ctx, tObj, s[i], lambda[i],
+ rgba[i]);
break;
default:
gl_problem(NULL, "Bad min filter in sample_1d_texture");
@@ -545,10 +407,12 @@ sample_lambda_1d( GLcontext *ctx, GLuint texUnit,
/* magnification */
switch (tObj->MagFilter) {
case GL_NEAREST:
- sample_1d_nearest( tObj, tObj->Image[tObj->BaseLevel], s[i], rgba[i] );
+ sample_1d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], rgba[i]);
break;
case GL_LINEAR:
- sample_1d_linear( tObj, tObj->Image[tObj->BaseLevel], s[i], rgba[i] );
+ sample_1d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], rgba[i]);
break;
default:
gl_problem(NULL, "Bad mag filter in sample_1d_texture");
@@ -567,77 +431,17 @@ sample_lambda_1d( GLcontext *ctx, GLuint texUnit,
/*
- * Given a texture image and an (i,j) integer texel coordinate, return the
- * texel color.
- */
-static void
-get_2d_texel( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img, GLint i, GLint j,
- GLchan rgba[4] )
-{
- const GLint width = img->Width; /* includes border */
- const GLchan *texel;
-
-#ifdef DEBUG
- const GLint height = img->Height; /* includes border */
- assert(i >= 0);
- assert(i < width);
- assert(j >= 0);
- assert(j < height);
-#endif
-
- switch (img->Format) {
- case GL_COLOR_INDEX:
- {
- GLint index = img->Data[ width *j + i ];
- palette_sample(tObj, index, rgba );
- return;
- }
- case GL_ALPHA:
- rgba[ACOMP] = img->Data[ width * j + i ];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = img->Data[ width * j + i ];
- return;
- case GL_LUMINANCE_ALPHA:
- texel = img->Data + (width * j + i) * 2;
- rgba[RCOMP] = texel[0];
- rgba[ACOMP] = texel[1];
- return;
- case GL_RGB:
- texel = img->Data + (width * j + i) * 3;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- return;
- case GL_RGBA:
- texel = img->Data + (width * j + i) * 4;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- rgba[ACOMP] = texel[3];
- return;
- default:
- gl_problem(NULL, "Bad format in get_2d_texel");
- }
-}
-
-
-
-/*
* Return the texture sample for coordinate (s,t) using GL_NEAREST filter.
*/
static void
-sample_2d_nearest( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLfloat s, GLfloat t,
- GLchan rgba[] )
+sample_2d_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ const struct gl_texture_image *img,
+ GLfloat s, GLfloat t,
+ GLchan rgba[])
{
- const GLint imgWidth = img->Width; /* includes border */
const GLint width = img->Width2; /* without border, power of two */
const GLint height = img->Height2; /* without border, power of two */
- const GLchan *texel;
GLint i, j;
COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, s, width, i);
@@ -647,41 +451,7 @@ sample_2d_nearest( const struct gl_texture_object *tObj,
i += img->Border;
j += img->Border;
- switch (img->Format) {
- case GL_COLOR_INDEX:
- {
- GLint index = img->Data[ j * imgWidth + i ];
- palette_sample(tObj, index, rgba);
- return;
- }
- case GL_ALPHA:
- rgba[ACOMP] = img->Data[ j * imgWidth + i ];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = img->Data[ j * imgWidth + i ];
- return;
- case GL_LUMINANCE_ALPHA:
- texel = img->Data + ((j * imgWidth + i) << 1);
- rgba[RCOMP] = texel[0];
- rgba[ACOMP] = texel[1];
- return;
- case GL_RGB:
- texel = img->Data + (j * imgWidth + i) * 3;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- return;
- case GL_RGBA:
- texel = img->Data + ((j * imgWidth + i) << 2);
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- rgba[ACOMP] = texel[3];
- return;
- default:
- gl_problem(NULL, "Bad format in sample_2d_nearest");
- }
+ (*img->FetchTexel)(ctx, tObj, img, i, j, 0, rgba);
}
@@ -691,10 +461,11 @@ sample_2d_nearest( const struct gl_texture_object *tObj,
* New sampling code contributed by Lynn Quam <quam@ai.sri.com>.
*/
static void
-sample_2d_linear( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLfloat s, GLfloat t,
- GLchan rgba[] )
+sample_2d_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ const struct gl_texture_image *img,
+ GLfloat s, GLfloat t,
+ GLchan rgba[])
{
const GLint width = img->Width2;
const GLint height = img->Height2;
@@ -736,25 +507,25 @@ sample_2d_linear( const struct gl_texture_object *tObj,
COPY_CHAN4(t00, tObj->BorderColor);
}
else {
- get_2d_texel( tObj, img, i0, j0, t00 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, j0, 0, t00);
}
if (useBorderColor & (I1BIT | J0BIT)) {
COPY_CHAN4(t10, tObj->BorderColor);
}
else {
- get_2d_texel( tObj, img, i1, j0, t10 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, j0, 0, t10);
}
if (useBorderColor & (I0BIT | J1BIT)) {
COPY_CHAN4(t01, tObj->BorderColor);
}
else {
- get_2d_texel( tObj, img, i0, j1, t01 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, j1, 0, t01);
}
if (useBorderColor & (I1BIT | J1BIT)) {
COPY_CHAN4(t11, tObj->BorderColor);
}
else {
- get_2d_texel( tObj, img, i1, j1, t11 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, j1, 0, t11);
}
rgba[0] = (GLchan) ((w00 * t00[0] + w10 * t10[0] + w01 * t01[0] + w11 * t11[0]) >> WEIGHT_SHIFT);
@@ -768,46 +539,49 @@ sample_2d_linear( const struct gl_texture_object *tObj,
static void
-sample_2d_nearest_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat lambda,
- GLchan rgba[4] )
+sample_2d_nearest_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
- sample_2d_nearest( tObj, tObj->Image[level], s, t, rgba );
+ sample_2d_nearest(ctx, tObj, tObj->Image[level], s, t, rgba);
}
static void
-sample_2d_linear_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat lambda,
- GLchan rgba[4] )
+sample_2d_linear_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
- sample_2d_linear( tObj, tObj->Image[level], s, t, rgba );
+ sample_2d_linear(ctx, tObj, tObj->Image[level], s, t, rgba);
}
static void
-sample_2d_nearest_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat lambda,
- GLchan rgba[4] )
+sample_2d_nearest_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level);
if (level >= tObj->_MaxLevel) {
- sample_2d_nearest( tObj, tObj->Image[tObj->_MaxLevel], s, t, rgba );
+ sample_2d_nearest(ctx, tObj, tObj->Image[tObj->_MaxLevel], s, t, rgba);
}
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda);
- sample_2d_nearest( tObj, tObj->Image[level ], s, t, t0 );
- sample_2d_nearest( tObj, tObj->Image[level+1], s, t, t1 );
+ sample_2d_nearest(ctx, tObj, tObj->Image[level ], s, t, t0);
+ sample_2d_nearest(ctx, tObj, tObj->Image[level+1], s, t, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -818,22 +592,23 @@ sample_2d_nearest_mipmap_linear( const struct gl_texture_object *tObj,
static void
-sample_2d_linear_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat lambda,
- GLchan rgba[4] )
+sample_2d_linear_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat lambda,
+ GLchan rgba[4])
{
GLint level;
COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level);
if (level >= tObj->_MaxLevel) {
- sample_2d_linear( tObj, tObj->Image[tObj->_MaxLevel], s, t, rgba );
+ sample_2d_linear(ctx, tObj, tObj->Image[tObj->_MaxLevel], s, t, rgba);
}
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda);
- sample_2d_linear( tObj, tObj->Image[level ], s, t, t0 );
- sample_2d_linear( tObj, tObj->Image[level+1], s, t, t1 );
+ sample_2d_linear(ctx, tObj, tObj->Image[level ], s, t, t0);
+ sample_2d_linear(ctx, tObj, tObj->Image[level+1], s, t, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -855,7 +630,7 @@ sample_nearest_2d( GLcontext *ctx, GLuint texUnit,
(void) u;
(void) lambda;
for (i=0;i<n;i++) {
- sample_2d_nearest( tObj, image, s[i], t[i], rgba[i] );
+ sample_2d_nearest(ctx, tObj, image, s[i], t[i], rgba[i]);
}
}
@@ -873,14 +648,14 @@ sample_linear_2d( GLcontext *ctx, GLuint texUnit,
(void) u;
(void) lambda;
for (i=0;i<n;i++) {
- sample_2d_linear( tObj, image, s[i], t[i], rgba[i] );
+ sample_2d_linear(ctx, tObj, image, s[i], t[i], rgba[i]);
}
}
/*
- * Given an (s,t) texture coordinate and lambda (level of detail) value,
- * return a texture sample.
+ * Given an array of (s,t) texture coordinate and lambda (level of detail)
+ * values, return an array of texture sample.
*/
static void
sample_lambda_2d( GLcontext *ctx, GLuint texUnit,
@@ -890,47 +665,76 @@ sample_lambda_2d( GLcontext *ctx, GLuint texUnit,
const GLfloat u[], const GLfloat lambda[],
GLchan rgba[][4] )
{
- GLfloat MinMagThresh = SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit];
+ const GLfloat minMagThresh = SWRAST_CONTEXT(ctx)->_MinMagThresh[texUnit];
GLuint i;
(void) u;
- for (i=0;i<n;i++) {
- if (lambda[i] > MinMagThresh) {
- /* minification */
- switch (tObj->MinFilter) {
- case GL_NEAREST:
- sample_2d_nearest( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], rgba[i] );
- break;
- case GL_LINEAR:
- sample_2d_linear( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], rgba[i] );
- break;
- case GL_NEAREST_MIPMAP_NEAREST:
- sample_2d_nearest_mipmap_nearest( tObj, s[i], t[i], lambda[i], rgba[i] );
- break;
- case GL_LINEAR_MIPMAP_NEAREST:
- sample_2d_linear_mipmap_nearest( tObj, s[i], t[i], lambda[i], rgba[i] );
- break;
- case GL_NEAREST_MIPMAP_LINEAR:
- sample_2d_nearest_mipmap_linear( tObj, s[i], t[i], lambda[i], rgba[i] );
- break;
- case GL_LINEAR_MIPMAP_LINEAR:
- sample_2d_linear_mipmap_linear( tObj, s[i], t[i], lambda[i], rgba[i] );
- break;
- default:
- gl_problem(NULL, "Bad min filter in sample_2d_texture");
- return;
- }
+
+ /* check if lambda is monotonous-array */
+ if (lambda[0] <= minMagThresh && lambda[n-1] <= minMagThresh) {
+ /* magnification */
+ switch (tObj->MagFilter) {
+ case GL_NEAREST:
+ for (i = 0; i < n; i++)
+ sample_2d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], rgba[i] );
+ break;
+ case GL_LINEAR:
+ for (i = 0; i < n; i++)
+ sample_2d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], rgba[i] );
+ break;
+ default:
+ gl_problem(NULL, "Bad mag filter in sample_2d_texture");
}
- else {
- /* magnification */
- switch (tObj->MagFilter) {
- case GL_NEAREST:
- sample_2d_nearest( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], rgba[i] );
- break;
- case GL_LINEAR:
- sample_2d_linear( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], rgba[i] );
- break;
- default:
- gl_problem(NULL, "Bad mag filter in sample_2d_texture");
+ }
+ else {
+ for (i = 0; i < n; i++) {
+ if (lambda[i] > minMagThresh) {
+ /* minification */
+ switch (tObj->MinFilter) {
+ case GL_NEAREST:
+ sample_2d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], rgba[i]);
+ break;
+ case GL_LINEAR:
+ sample_2d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], rgba[i]);
+ break;
+ case GL_NEAREST_MIPMAP_NEAREST:
+ sample_2d_nearest_mipmap_nearest(ctx, tObj, s[i], t[i],
+ lambda[i], rgba[i]);
+ break;
+ case GL_LINEAR_MIPMAP_NEAREST:
+ sample_2d_linear_mipmap_nearest(ctx,tObj, s[i], t[i],
+ lambda[i], rgba[i]);
+ break;
+ case GL_NEAREST_MIPMAP_LINEAR:
+ sample_2d_nearest_mipmap_linear(ctx,tObj, s[i], t[i],
+ lambda[i], rgba[i]);
+ break;
+ case GL_LINEAR_MIPMAP_LINEAR:
+ sample_2d_linear_mipmap_linear(ctx,tObj, s[i], t[i],
+ lambda[i], rgba[i] );
+ break;
+ default:
+ gl_problem(NULL, "Bad min filter in sample_2d_texture");
+ return;
+ }
+ }
+ else {
+ /* magnification */
+ switch (tObj->MagFilter) {
+ case GL_NEAREST:
+ sample_2d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], rgba[i]);
+ break;
+ case GL_LINEAR:
+ sample_2d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], rgba[i] );
+ break;
+ default:
+ gl_problem(NULL, "Bad mag filter in sample_2d_texture");
+ }
}
}
}
@@ -972,7 +776,7 @@ opt_sample_rgb_2d( GLcontext *ctx, GLuint texUnit,
GLint i = (GLint) ((s[k] + 10000.0) * width) & colMask;
GLint j = (GLint) ((t[k] + 10000.0) * height) & rowMask;
GLint pos = (j << shift) | i;
- GLchan *texel = img->Data + pos + pos + pos; /* pos*3 */
+ GLchan *texel = ((GLchan *) img->Data) + pos + pos + pos; /* pos*3 */
rgba[k][RCOMP] = texel[0];
rgba[k][GCOMP] = texel[1];
rgba[k][BCOMP] = texel[2];
@@ -1015,7 +819,7 @@ opt_sample_rgba_2d( GLcontext *ctx, GLuint texUnit,
GLint i = (GLint) ((s[k] + 10000.0) * width) & colMask;
GLint j = (GLint) ((t[k] + 10000.0) * height) & rowMask;
GLint pos = (j << shift) | i;
- GLchan *texel = img->Data + (pos << 2); /* pos*4 */
+ GLchan *texel = ((GLchan *) img->Data) + (pos << 2); /* pos*4 */
rgba[k][RCOMP] = texel[0];
rgba[k][GCOMP] = texel[1];
rgba[k][BCOMP] = texel[2];
@@ -1030,125 +834,25 @@ opt_sample_rgba_2d( GLcontext *ctx, GLuint texUnit,
/**********************************************************************/
/*
- * Given a texture image and an (i,j,k) integer texel coordinate, return the
- * texel color.
- */
-static void
-get_3d_texel( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLint i, GLint j, GLint k,
- GLchan rgba[4] )
-{
- const GLint width = img->Width; /* includes border */
- const GLint height = img->Height; /* includes border */
- const GLint rectarea = width * height;
- const GLchan *texel;
-
-#ifdef DEBUG
- const GLint depth = img->Depth; /* includes border */
- assert(i >= 0);
- assert(i < width);
- assert(j >= 0);
- assert(j < height);
- assert(k >= 0);
- assert(k < depth);
-#endif
-
- switch (img->Format) {
- case GL_COLOR_INDEX:
- {
- GLint index = img->Data[ rectarea * k + width * j + i ];
- palette_sample(tObj, index, rgba );
- return;
- }
- case GL_ALPHA:
- rgba[ACOMP] = img->Data[ rectarea * k + width * j + i ];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = img->Data[ rectarea * k + width * j + i ];
- return;
- case GL_LUMINANCE_ALPHA:
- texel = img->Data + ( rectarea * k + width * j + i) * 2;
- rgba[RCOMP] = texel[0];
- rgba[ACOMP] = texel[1];
- return;
- case GL_RGB:
- texel = img->Data + (rectarea * k + width * j + i) * 3;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- return;
- case GL_RGBA:
- texel = img->Data + (rectarea * k + width * j + i) * 4;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- rgba[ACOMP] = texel[3];
- return;
- default:
- gl_problem(NULL, "Bad format in get_3d_texel");
- }
-}
-
-
-/*
* Return the texture sample for coordinate (s,t,r) using GL_NEAREST filter.
*/
static void
-sample_3d_nearest( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLfloat s, GLfloat t, GLfloat r,
- GLchan rgba[4] )
+sample_3d_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ const struct gl_texture_image *img,
+ GLfloat s, GLfloat t, GLfloat r,
+ GLchan rgba[4])
{
- const GLint imgWidth = img->Width; /* includes border, if any */
- const GLint imgHeight = img->Height; /* includes border, if any */
const GLint width = img->Width2; /* without border, power of two */
const GLint height = img->Height2; /* without border, power of two */
const GLint depth = img->Depth2; /* without border, power of two */
- const GLint rectarea = imgWidth * imgHeight;
- const GLchan *texel;
GLint i, j, k;
COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapS, s, width, i);
COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapT, t, height, j);
COMPUTE_NEAREST_TEXEL_LOCATION(tObj->WrapR, r, depth, k);
- switch (tObj->Image[0]->Format) {
- case GL_COLOR_INDEX:
- {
- GLint index = img->Data[ rectarea * k + j * imgWidth + i ];
- palette_sample(tObj, index, rgba );
- return;
- }
- case GL_ALPHA:
- rgba[ACOMP] = img->Data[ rectarea * k + j * imgWidth + i ];
- return;
- case GL_LUMINANCE:
- case GL_INTENSITY:
- rgba[RCOMP] = img->Data[ rectarea * k + j * imgWidth + i ];
- return;
- case GL_LUMINANCE_ALPHA:
- texel = img->Data + ((rectarea * k + j * imgWidth + i) << 1);
- rgba[RCOMP] = texel[0];
- rgba[ACOMP] = texel[1];
- return;
- case GL_RGB:
- texel = img->Data + ( rectarea * k + j * imgWidth + i) * 3;
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- return;
- case GL_RGBA:
- texel = img->Data + ((rectarea * k + j * imgWidth + i) << 2);
- rgba[RCOMP] = texel[0];
- rgba[GCOMP] = texel[1];
- rgba[BCOMP] = texel[2];
- rgba[ACOMP] = texel[3];
- return;
- default:
- gl_problem(NULL, "Bad format in sample_3d_nearest");
- }
+ (*img->FetchTexel)(ctx, tObj, img, i, j, k, rgba);
}
@@ -1157,10 +861,11 @@ sample_3d_nearest( const struct gl_texture_object *tObj,
* Return the texture sample for coordinate (s,t,r) using GL_LINEAR filter.
*/
static void
-sample_3d_linear( const struct gl_texture_object *tObj,
- const struct gl_texture_image *img,
- GLfloat s, GLfloat t, GLfloat r,
- GLchan rgba[4] )
+sample_3d_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ const struct gl_texture_image *img,
+ GLfloat s, GLfloat t, GLfloat r,
+ GLchan rgba[4])
{
const GLint width = img->Width2;
const GLint height = img->Height2;
@@ -1213,50 +918,50 @@ sample_3d_linear( const struct gl_texture_object *tObj,
COPY_CHAN4(t000, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i0, j0, k0, t000 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, j0, k0, t000);
}
if (useBorderColor & (I1BIT | J0BIT | K0BIT)) {
COPY_CHAN4(t100, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i1, j0, k0, t100 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, j0, k0, t100);
}
if (useBorderColor & (I0BIT | J1BIT | K0BIT)) {
COPY_CHAN4(t010, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i0, j1, k0, t010 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, j1, k0, t010);
}
if (useBorderColor & (I1BIT | J1BIT | K0BIT)) {
COPY_CHAN4(t110, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i1, j1, k0, t110 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, j1, k0, t110);
}
if (useBorderColor & (I0BIT | J0BIT | K1BIT)) {
COPY_CHAN4(t001, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i0, j0, k1, t001 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, j0, k1, t001);
}
if (useBorderColor & (I1BIT | J0BIT | K1BIT)) {
COPY_CHAN4(t101, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i1, j0, k1, t101 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, j0, k1, t101);
}
if (useBorderColor & (I0BIT | J1BIT | K1BIT)) {
COPY_CHAN4(t011, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i0, j1, k1, t011 );
+ (*img->FetchTexel)(ctx, tObj, img, i0, j1, k1, t011);
}
if (useBorderColor & (I1BIT | J1BIT | K1BIT)) {
COPY_CHAN4(t111, tObj->BorderColor);
}
else {
- get_3d_texel( tObj, img, i1, j1, k1, t111 );
+ (*img->FetchTexel)(ctx, tObj, img, i1, j1, k1, t111);
}
rgba[0] = (GLchan) (
@@ -1281,44 +986,48 @@ sample_3d_linear( const struct gl_texture_object *tObj,
static void
-sample_3d_nearest_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat r,
- GLfloat lambda, GLchan rgba[4] )
+sample_3d_nearest_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat r,
+ GLfloat lambda, GLchan rgba[4] )
{
GLint level;
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
- sample_3d_nearest( tObj, tObj->Image[level], s, t, r, rgba );
+ sample_3d_nearest(ctx, tObj, tObj->Image[level], s, t, r, rgba);
}
static void
-sample_3d_linear_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat r,
- GLfloat lambda, GLchan rgba[4] )
+sample_3d_linear_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat r,
+ GLfloat lambda, GLchan rgba[4])
{
GLint level;
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
- sample_3d_linear( tObj, tObj->Image[level], s, t, r, rgba );
+ sample_3d_linear(ctx, tObj, tObj->Image[level], s, t, r, rgba);
}
static void
-sample_3d_nearest_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat r,
- GLfloat lambda, GLchan rgba[4] )
+sample_3d_nearest_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat r,
+ GLfloat lambda, GLchan rgba[4])
{
GLint level;
COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level);
if (level >= tObj->_MaxLevel) {
- sample_3d_nearest( tObj, tObj->Image[tObj->_MaxLevel], s, t, r, rgba );
+ sample_3d_nearest(ctx, tObj, tObj->Image[tObj->_MaxLevel],
+ s, t, r, rgba);
}
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda);
- sample_3d_nearest( tObj, tObj->Image[level ], s, t, r, t0 );
- sample_3d_nearest( tObj, tObj->Image[level+1], s, t, r, t1 );
+ sample_3d_nearest(ctx, tObj, tObj->Image[level ], s, t, r, t0);
+ sample_3d_nearest(ctx, tObj, tObj->Image[level+1], s, t, r, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -1328,22 +1037,23 @@ sample_3d_nearest_mipmap_linear( const struct gl_texture_object *tObj,
static void
-sample_3d_linear_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat r,
- GLfloat lambda, GLchan rgba[4] )
+sample_3d_linear_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat r,
+ GLfloat lambda, GLchan rgba[4] )
{
GLint level;
COMPUTE_LINEAR_MIPMAP_LEVEL(tObj, lambda, level);
if (level >= tObj->_MaxLevel) {
- sample_3d_linear( tObj, tObj->Image[tObj->_MaxLevel], s, t, r, rgba );
+ sample_3d_linear(ctx, tObj, tObj->Image[tObj->_MaxLevel], s, t, r, rgba);
}
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda);
- sample_3d_linear( tObj, tObj->Image[level ], s, t, r, t0 );
- sample_3d_linear( tObj, tObj->Image[level+1], s, t, r, t1 );
+ sample_3d_linear(ctx, tObj, tObj->Image[level ], s, t, r, t0);
+ sample_3d_linear(ctx, tObj, tObj->Image[level+1], s, t, r, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -1353,17 +1063,17 @@ sample_3d_linear_mipmap_linear( const struct gl_texture_object *tObj,
static void
-sample_nearest_3d( GLcontext *ctx, GLuint texUnit,
- const struct gl_texture_object *tObj, GLuint n,
- const GLfloat s[], const GLfloat t[],
- const GLfloat u[], const GLfloat lambda[],
- GLchan rgba[][4] )
+sample_nearest_3d(GLcontext *ctx, GLuint texUnit,
+ const struct gl_texture_object *tObj, GLuint n,
+ const GLfloat s[], const GLfloat t[],
+ const GLfloat u[], const GLfloat lambda[],
+ GLchan rgba[][4])
{
GLuint i;
struct gl_texture_image *image = tObj->Image[tObj->BaseLevel];
(void) lambda;
for (i=0;i<n;i++) {
- sample_3d_nearest( tObj, image, s[i], t[i], u[i], rgba[i] );
+ sample_3d_nearest(ctx, tObj, image, s[i], t[i], u[i], rgba[i]);
}
}
@@ -1380,7 +1090,7 @@ sample_linear_3d( GLcontext *ctx, GLuint texUnit,
struct gl_texture_image *image = tObj->Image[tObj->BaseLevel];
(void) lambda;
for (i=0;i<n;i++) {
- sample_3d_linear( tObj, image, s[i], t[i], u[i], rgba[i] );
+ sample_3d_linear(ctx, tObj, image, s[i], t[i], u[i], rgba[i]);
}
}
@@ -1405,22 +1115,28 @@ sample_lambda_3d( GLcontext *ctx, GLuint texUnit,
/* minification */
switch (tObj->MinFilter) {
case GL_NEAREST:
- sample_3d_nearest( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], u[i], rgba[i] );
+ sample_3d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], u[i], rgba[i]);
break;
case GL_LINEAR:
- sample_3d_linear( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], u[i], rgba[i] );
+ sample_3d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], u[i], rgba[i]);
break;
case GL_NEAREST_MIPMAP_NEAREST:
- sample_3d_nearest_mipmap_nearest( tObj, s[i], t[i], u[i], lambda[i], rgba[i] );
+ sample_3d_nearest_mipmap_nearest(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
case GL_LINEAR_MIPMAP_NEAREST:
- sample_3d_linear_mipmap_nearest( tObj, s[i], t[i], u[i], lambda[i], rgba[i] );
+ sample_3d_linear_mipmap_nearest(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
case GL_NEAREST_MIPMAP_LINEAR:
- sample_3d_nearest_mipmap_linear( tObj, s[i], t[i], u[i], lambda[i], rgba[i] );
+ sample_3d_nearest_mipmap_linear(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
case GL_LINEAR_MIPMAP_LINEAR:
- sample_3d_linear_mipmap_linear( tObj, s[i], t[i], u[i], lambda[i], rgba[i] );
+ sample_3d_linear_mipmap_linear(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
default:
gl_problem(NULL, "Bad min filterin sample_3d_texture");
@@ -1430,10 +1146,12 @@ sample_lambda_3d( GLcontext *ctx, GLuint texUnit,
/* magnification */
switch (tObj->MagFilter) {
case GL_NEAREST:
- sample_3d_nearest( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], u[i], rgba[i] );
+ sample_3d_nearest(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], u[i], rgba[i]);
break;
case GL_LINEAR:
- sample_3d_linear( tObj, tObj->Image[tObj->BaseLevel], s[i], t[i], u[i], rgba[i] );
+ sample_3d_linear(ctx, tObj, tObj->Image[tObj->BaseLevel],
+ s[i], t[i], u[i], rgba[i]);
break;
default:
gl_problem(NULL, "Bad mag filter in sample_3d_texture");
@@ -1534,7 +1252,8 @@ sample_nearest_cube(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_image **images;
GLfloat newS, newT;
images = choose_cube_face(tObj, s[i], t[i], u[i], &newS, &newT);
- sample_2d_nearest( tObj, images[tObj->BaseLevel], newS, newT, rgba[i] );
+ sample_2d_nearest(ctx, tObj, images[tObj->BaseLevel],
+ newS, newT, rgba[i]);
}
}
@@ -1552,15 +1271,17 @@ sample_linear_cube(GLcontext *ctx, GLuint texUnit,
const struct gl_texture_image **images;
GLfloat newS, newT;
images = choose_cube_face(tObj, s[i], t[i], u[i], &newS, &newT);
- sample_2d_linear( tObj, images[tObj->BaseLevel], newS, newT, rgba[i] );
+ sample_2d_linear(ctx, tObj, images[tObj->BaseLevel],
+ newS, newT, rgba[i]);
}
}
static void
-sample_cube_nearest_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat u,
- GLfloat lambda, GLchan rgba[4] )
+sample_cube_nearest_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat u,
+ GLfloat lambda, GLchan rgba[4])
{
const struct gl_texture_image **images;
GLfloat newS, newT;
@@ -1569,14 +1290,15 @@ sample_cube_nearest_mipmap_nearest( const struct gl_texture_object *tObj,
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
images = choose_cube_face(tObj, s, t, u, &newS, &newT);
- sample_2d_nearest( tObj, images[level], newS, newT, rgba );
+ sample_2d_nearest(ctx, tObj, images[level], newS, newT, rgba);
}
static void
-sample_cube_linear_mipmap_nearest( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat u,
- GLfloat lambda, GLchan rgba[4] )
+sample_cube_linear_mipmap_nearest(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat u,
+ GLfloat lambda, GLchan rgba[4])
{
const struct gl_texture_image **images;
GLfloat newS, newT;
@@ -1585,14 +1307,15 @@ sample_cube_linear_mipmap_nearest( const struct gl_texture_object *tObj,
COMPUTE_NEAREST_MIPMAP_LEVEL(tObj, lambda, level);
images = choose_cube_face(tObj, s, t, u, &newS, &newT);
- sample_2d_linear( tObj, images[level], newS, newT, rgba );
+ sample_2d_linear(ctx, tObj, images[level], newS, newT, rgba);
}
static void
-sample_cube_nearest_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat u,
- GLfloat lambda, GLchan rgba[4] )
+sample_cube_nearest_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat u,
+ GLfloat lambda, GLchan rgba[4])
{
const struct gl_texture_image **images;
GLfloat newS, newT;
@@ -1603,13 +1326,13 @@ sample_cube_nearest_mipmap_linear( const struct gl_texture_object *tObj,
images = choose_cube_face(tObj, s, t, u, &newS, &newT);
if (level >= tObj->_MaxLevel) {
- sample_2d_nearest( tObj, images[tObj->_MaxLevel], newS, newT, rgba );
+ sample_2d_nearest(ctx, tObj, images[tObj->_MaxLevel], newS, newT, rgba);
}
else {
GLchan t0[4], t1[4]; /* texels */
const GLfloat f = FRAC(lambda);
- sample_2d_nearest( tObj, images[level ], newS, newT, t0 );
- sample_2d_nearest( tObj, images[level+1], newS, newT, t1 );
+ sample_2d_nearest(ctx, tObj, images[level ], newS, newT, t0);
+ sample_2d_nearest(ctx, tObj, images[level+1], newS, newT, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -1619,9 +1342,10 @@ sample_cube_nearest_mipmap_linear( const struct gl_texture_object *tObj,
static void
-sample_cube_linear_mipmap_linear( const struct gl_texture_object *tObj,
- GLfloat s, GLfloat t, GLfloat u,
- GLfloat lambda, GLchan rgba[4] )
+sample_cube_linear_mipmap_linear(GLcontext *ctx,
+ const struct gl_texture_object *tObj,
+ GLfloat s, GLfloat t, GLfloat u,
+ GLfloat lambda, GLchan rgba[4])
{
const struct gl_texture_image **images;
GLfloat newS, newT;
@@ -1632,13 +1356,13 @@ sample_cube_linear_mipmap_linear( const struct gl_texture_object *tObj,
images = choose_cube_face(tObj, s, t, u, &newS, &newT);
if (level >= tObj->_MaxLevel) {
- sample_2d_linear( tObj, images[tObj->_MaxLevel], newS, newT, rgba );
+ sample_2d_linear(ctx, tObj, images[tObj->_MaxLevel], newS, newT, rgba);
}
else {
GLchan t0[4], t1[4];
const GLfloat f = FRAC(lambda);
- sample_2d_linear( tObj, images[level ], newS, newT, t0 );
- sample_2d_linear( tObj, images[level+1], newS, newT, t1 );
+ sample_2d_linear(ctx, tObj, images[level ], newS, newT, t0);
+ sample_2d_linear(ctx, tObj, images[level+1], newS, newT, t1);
rgba[RCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[RCOMP] + f * t1[RCOMP]);
rgba[GCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[GCOMP] + f * t1[GCOMP]);
rgba[BCOMP] = (GLchan) (GLint) ((1.0F-f) * t0[BCOMP] + f * t1[BCOMP]);
@@ -1667,8 +1391,8 @@ sample_lambda_cube( GLcontext *ctx, GLuint texUnit,
GLfloat newS, newT;
images = choose_cube_face(tObj, s[i], t[i], u[i],
&newS, &newT);
- sample_2d_nearest( tObj, images[tObj->BaseLevel],
- newS, newT, rgba[i] );
+ sample_2d_nearest(ctx, tObj, images[tObj->BaseLevel],
+ newS, newT, rgba[i]);
}
break;
case GL_LINEAR:
@@ -1677,25 +1401,25 @@ sample_lambda_cube( GLcontext *ctx, GLuint texUnit,
GLfloat newS, newT;
images = choose_cube_face(tObj, s[i], t[i], u[i],
&newS, &newT);
- sample_2d_linear( tObj, images[tObj->BaseLevel],
- newS, newT, rgba[i] );
+ sample_2d_linear(ctx, tObj, images[tObj->BaseLevel],
+ newS, newT, rgba[i]);
}
break;
case GL_NEAREST_MIPMAP_NEAREST:
- sample_cube_nearest_mipmap_nearest( tObj, s[i], t[i], u[i],
- lambda[i], rgba[i] );
+ sample_cube_nearest_mipmap_nearest(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
case GL_LINEAR_MIPMAP_NEAREST:
- sample_cube_linear_mipmap_nearest( tObj, s[i], t[i], u[i],
- lambda[i], rgba[i] );
+ sample_cube_linear_mipmap_nearest(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
case GL_NEAREST_MIPMAP_LINEAR:
- sample_cube_nearest_mipmap_linear( tObj, s[i], t[i], u[i],
- lambda[i], rgba[i] );
+ sample_cube_nearest_mipmap_linear(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
case GL_LINEAR_MIPMAP_LINEAR:
- sample_cube_linear_mipmap_linear( tObj, s[i], t[i], u[i],
- lambda[i], rgba[i] );
+ sample_cube_linear_mipmap_linear(ctx, tObj, s[i], t[i], u[i],
+ lambda[i], rgba[i]);
break;
default:
gl_problem(NULL, "Bad min filter in sample_lambda_cube");
@@ -1709,12 +1433,12 @@ sample_lambda_cube( GLcontext *ctx, GLuint texUnit,
&newS, &newT);
switch (tObj->MagFilter) {
case GL_NEAREST:
- sample_2d_nearest( tObj, images[tObj->BaseLevel],
- newS, newT, rgba[i] );
+ sample_2d_nearest(ctx, tObj, images[tObj->BaseLevel],
+ newS, newT, rgba[i]);
break;
case GL_LINEAR:
- sample_2d_linear( tObj, images[tObj->BaseLevel],
- newS, newT, rgba[i] );
+ sample_2d_linear(ctx, tObj, images[tObj->BaseLevel],
+ newS, newT, rgba[i]);
break;
default:
gl_problem(NULL, "Bad mag filter in sample_lambda_cube");
@@ -1788,10 +1512,12 @@ _swrast_choose_texture_sample_func( GLcontext *ctx, GLuint texUnit,
ASSERT(t->MinFilter==GL_NEAREST);
if (t->WrapS==GL_REPEAT && t->WrapT==GL_REPEAT
&& t->Image[0]->Border==0 && t->Image[0]->Format==GL_RGB) {
+ /* XXX check for well-known texture image format */
swrast->TextureSample[texUnit] = opt_sample_rgb_2d;
}
else if (t->WrapS==GL_REPEAT && t->WrapT==GL_REPEAT
&& t->Image[0]->Border==0 && t->Image[0]->Format==GL_RGBA) {
+ /* XXX check for well-known texture image format */
swrast->TextureSample[texUnit] = opt_sample_rgba_2d;
}
else
@@ -2585,13 +2311,6 @@ _swrast_texture_fragments( GLcontext *ctx, GLuint texUnit, GLuint n,
}
}
- /* fetch texture images from device driver, if needed */
- if (ctx->Driver.GetTexImage) {
- if (!_mesa_get_teximages_from_driver(ctx, textureUnit->_Current)) {
- return;
- }
- }
-
/* Sample the texture. */
SWRAST_CONTEXT(ctx)->TextureSample[texUnit]( ctx, texUnit,
textureUnit->_Current,
diff --git a/src/mesa/swrast/s_triangle.c b/src/mesa/swrast/s_triangle.c
index 1819e4430f..d268b2e754 100644
--- a/src/mesa/swrast/s_triangle.c
+++ b/src/mesa/swrast/s_triangle.c
@@ -1,4 +1,4 @@
-/* $Id: s_triangle.c,v 1.10 2001/01/29 18:51:25 brianp Exp $ */
+/* $Id: s_triangle.c,v 1.11 2001/02/06 21:42:49 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -243,14 +243,12 @@ static void simple_textured_triangle( GLcontext *ctx,
GLfloat twidth = (GLfloat) obj->Image[b]->Width; \
GLfloat theight = (GLfloat) obj->Image[b]->Height; \
GLint twidth_log2 = obj->Image[b]->WidthLog2; \
- GLchan *texture = obj->Image[b]->Data; \
+ const GLchan *texture = (const GLchan *) obj->Image[b]->Data; \
GLint smask = obj->Image[b]->Width - 1; \
GLint tmask = obj->Image[b]->Height - 1; \
if (!texture) { \
- if (!_mesa_get_teximages_from_driver(ctx, obj)) \
- return; \
- texture = obj->Image[b]->Data; \
- ASSERT(texture); \
+ /* this shouldn't happen */ \
+ return; \
}
#define INNER_LOOP( LEFT, RIGHT, Y ) \
@@ -304,14 +302,12 @@ static void simple_z_textured_triangle( GLcontext *ctx,
GLfloat twidth = (GLfloat) obj->Image[b]->Width; \
GLfloat theight = (GLfloat) obj->Image[b]->Height; \
GLint twidth_log2 = obj->Image[b]->WidthLog2; \
- GLchan *texture = obj->Image[b]->Data; \
+ const GLchan *texture = (const GLchan *) obj->Image[b]->Data; \
GLint smask = obj->Image[b]->Width - 1; \
GLint tmask = obj->Image[b]->Height - 1; \
if (!texture) { \
- if (!_mesa_get_teximages_from_driver(ctx, obj)) \
- return; \
- texture = obj->Image[b]->Data; \
- ASSERT(texture); \
+ /* this shouldn't happen */ \
+ return; \
}
#define INNER_LOOP( LEFT, RIGHT, Y ) \
@@ -376,7 +372,7 @@ static void affine_textured_triangle( GLcontext *ctx,
GLfloat twidth = (GLfloat) obj->Image[b]->Width; \
GLfloat theight = (GLfloat) obj->Image[b]->Height; \
GLint twidth_log2 = obj->Image[b]->WidthLog2; \
- GLchan *texture = obj->Image[b]->Data; \
+ const GLchan *texture = (const GLchan *) obj->Image[b]->Data; \
GLint smask = obj->Image[b]->Width - 1; \
GLint tmask = obj->Image[b]->Height - 1; \
GLint format = obj->Image[b]->Format; \
@@ -386,10 +382,8 @@ static void affine_textured_triangle( GLcontext *ctx,
GLfixed er, eg, eb, ea; \
GLint tr, tg, tb, ta; \
if (!texture) { \
- if (!_mesa_get_teximages_from_driver(ctx, obj)) \
- return; \
- texture = obj->Image[b]->Data; \
- ASSERT(texture); \
+ /* this shouldn't happen */ \
+ return; \
} \
if (envmode == GL_BLEND || envmode == GL_ADD) { \
/* potential off-by-one error here? (1.0f -> 2048 -> 0) */ \
@@ -499,7 +493,7 @@ static void affine_textured_triangle( GLcontext *ctx,
GLint s = FixedToInt(ffs) & smask; \
GLint t = FixedToInt(fft) & tmask; \
GLint pos = (t << twidth_log2) + s; \
- GLchan *tex00 = texture + COMP * pos; \
+ const GLchan *tex00 = texture + COMP * pos; \
zspan[i] = FixedToDepth(ffz); \
fogspan[i] = fffog / 256; \
DO_TEX; \
@@ -523,10 +517,10 @@ static void affine_textured_triangle( GLcontext *ctx,
GLint si = FIXED_FRAC_MASK - sf; \
GLint ti = FIXED_FRAC_MASK - tf; \
GLint pos = (t << twidth_log2) + s; \
- GLchan *tex00 = texture + COMP * pos; \
- GLchan *tex10 = tex00 + tbytesline; \
- GLchan *tex01 = tex00 + COMP; \
- GLchan *tex11 = tex10 + COMP; \
+ const GLchan *tex00 = texture + COMP * pos; \
+ const GLchan *tex10 = tex00 + tbytesline; \
+ const GLchan *tex01 = tex00 + COMP; \
+ const GLchan *tex11 = tex10 + COMP; \
if (t == tmask) { \
tex10 -= tsize; \
tex11 -= tsize; \
@@ -705,7 +699,7 @@ static void near_persp_textured_triangle(GLcontext *ctx,
const GLfloat twidth = (GLfloat) obj->Image[b]->Width; \
const GLfloat theight = (GLfloat) obj->Image[b]->Height; \
const GLint twidth_log2 = obj->Image[b]->WidthLog2; \
- GLchan *texture = obj->Image[b]->Data; \
+ const GLchan *texture = (const GLchan *) obj->Image[b]->Data; \
const GLint smask = (obj->Image[b]->Width - 1); \
const GLint tmask = (obj->Image[b]->Height - 1); \
const GLint format = obj->Image[b]->Format; \
@@ -714,10 +708,8 @@ static void near_persp_textured_triangle(GLcontext *ctx,
GLfixed er, eg, eb, ea; \
GLint tr, tg, tb, ta; \
if (!texture) { \
- if (!_mesa_get_teximages_from_driver(ctx, obj)) \
- return; \
- texture = obj->Image[b]->Data; \
- ASSERT(texture); \
+ /* this shouldn't happen */ \
+ return; \
} \
if (envmode == GL_BLEND || envmode == GL_ADD) { \
er = FloatToFixed(unit->EnvColor[0]); \
@@ -1448,10 +1440,7 @@ static void lin_persp_textured_triangle( GLcontext *ctx,
GLfixed er, eg, eb, ea; \
GLint tr, tg, tb, ta; \
if (!texture) { \
- if (!_mesa_get_teximages_from_driver(ctx, obj)) \
- return; \
- texture = obj->Image[b]->Data; \
- ASSERT(texture); \
+ return; \
} \
if (envmode == GL_BLEND || envmode == GL_ADD) { \
er = FloatToFixed(unit->EnvColor[0]); \
@@ -2304,6 +2293,7 @@ _swrast_choose_triangle( GLcontext *ctx )
&& ((image = current2Dtex->Image[current2Dtex->BaseLevel]) != 0) /* correct! */
&& image->Border==0
&& ((format = image->Format)==GL_RGB || format==GL_RGBA)
+ && image->Type == CHAN_TYPE
&& (filter = current2Dtex->MinFilter)==current2Dtex->MagFilter
/* ==> current2Dtex->MinFilter != GL_XXX_MIPMAP_XXX */
&& ctx->Light.Model.ColorControl==GL_SINGLE_COLOR
diff --git a/src/mesa/swrast/s_tritemp.h b/src/mesa/swrast/s_tritemp.h
index c0ab9f9d2c..a622abee9b 100644
--- a/src/mesa/swrast/s_tritemp.h
+++ b/src/mesa/swrast/s_tritemp.h
@@ -1,4 +1,4 @@
-/* $Id: s_tritemp.h,v 1.8 2001/01/29 18:51:25 brianp Exp $ */
+/* $Id: s_tritemp.h,v 1.9 2001/02/06 21:42:49 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -286,7 +286,7 @@
#error "Mipmapping without texturing doesn't make sense."
#endif
GLfloat lambda_nominator;
-#endif
+#endif /* INTERP_LAMBDA */
/*
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 23:52:16 +0000