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Diffstat (limited to 'src/mesa/swrast/s_texture.c')
-rw-r--r--src/mesa/swrast/s_texture.c115
1 files changed, 25 insertions, 90 deletions
diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index 37e8ea86f34..496812f203d 100644
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -3113,7 +3113,9 @@ _swrast_choose_texture_sample_func( GLcontext *ctx,
/**
* Do texture application for GL_ARB/EXT_texture_env_combine.
* This function also supports GL_{EXT,ARB}_texture_env_dot3 and
- * GL_ATI_texture_env_combine3
+ * GL_ATI_texture_env_combine3. Since "classic" texture environments are
+ * implemented using GL_ARB_texture_env_combine-like state, this same function
+ * is used for classic texture environment application as well.
*
* \param ctx rendering context
* \param textureUnit the texture unit to apply
@@ -3132,8 +3134,8 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
const struct gl_texture_unit *textureUnit = &(ctx->Texture.Unit[unit]);
const GLchan (*argRGB [3])[4];
const GLchan (*argA [3])[4];
- const GLuint RGBshift = textureUnit->CombineScaleShiftRGB;
- const GLuint Ashift = textureUnit->CombineScaleShiftA;
+ const GLuint RGBshift = textureUnit->_CurrentCombine->ScaleShiftRGB;
+ const GLuint Ashift = textureUnit->_CurrentCombine->ScaleShiftA;
#if CHAN_TYPE == GL_FLOAT
const GLchan RGBmult = (GLfloat) (1 << RGBshift);
const GLchan Amult = (GLfloat) (1 << Ashift);
@@ -3159,67 +3161,22 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
/*
printf("modeRGB 0x%x modeA 0x%x srcRGB1 0x%x srcA1 0x%x srcRGB2 0x%x srcA2 0x%x\n",
- textureUnit->CombineModeRGB,
- textureUnit->CombineModeA,
- textureUnit->CombineSourceRGB[0],
- textureUnit->CombineSourceA[0],
- textureUnit->CombineSourceRGB[1],
- textureUnit->CombineSourceA[1]);
+ textureUnit->_CurrentCombine->ModeRGB,
+ textureUnit->_CurrentCombine->ModeA,
+ textureUnit->_CurrentCombine->SourceRGB[0],
+ textureUnit->_CurrentCombine->SourceA[0],
+ textureUnit->_CurrentCombine->SourceRGB[1],
+ textureUnit->_CurrentCombine->SourceA[1]);
*/
/*
* Do operand setup for up to 3 operands. Loop over the terms.
*/
- switch (textureUnit->CombineModeRGB) {
- case GL_REPLACE:
- numColorArgs = 1;
- break;
- case GL_MODULATE:
- case GL_ADD:
- case GL_ADD_SIGNED:
- case GL_SUBTRACT:
- case GL_DOT3_RGB:
- case GL_DOT3_RGBA:
- case GL_DOT3_RGB_EXT:
- case GL_DOT3_RGBA_EXT:
- numColorArgs = 2;
- break;
- case GL_INTERPOLATE:
- case GL_MODULATE_ADD_ATI:
- case GL_MODULATE_SIGNED_ADD_ATI:
- case GL_MODULATE_SUBTRACT_ATI:
- numColorArgs = 3;
- break;
- default:
- numColorArgs = 0;
- ASSERT(0);
- break;
- }
-
- switch (textureUnit->CombineModeA) {
- case GL_REPLACE:
- numAlphaArgs = 1;
- break;
- case GL_MODULATE:
- case GL_ADD:
- case GL_ADD_SIGNED:
- case GL_SUBTRACT:
- numAlphaArgs = 2;
- break;
- case GL_INTERPOLATE:
- case GL_MODULATE_ADD_ATI:
- case GL_MODULATE_SIGNED_ADD_ATI:
- case GL_MODULATE_SUBTRACT_ATI:
- numAlphaArgs = 3;
- break;
- default:
- numAlphaArgs = 0;
- ASSERT(0);
- break;
- }
+ numColorArgs = textureUnit->_CurrentCombine->_NumArgsRGB;
+ numAlphaArgs = textureUnit->_CurrentCombine->_NumArgsA;
for (j = 0; j < numColorArgs; j++) {
- const GLenum srcRGB = textureUnit->CombineSourceRGB[j];
+ const GLenum srcRGB = textureUnit->_CurrentCombine->SourceRGB[j];
switch (srcRGB) {
@@ -3270,21 +3227,21 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
}
}
- if (textureUnit->CombineOperandRGB[j] != GL_SRC_COLOR) {
+ if (textureUnit->_CurrentCombine->OperandRGB[j] != GL_SRC_COLOR) {
const GLchan (*src)[4] = argRGB[j];
GLchan (*dst)[4] = ccolor[j];
/* point to new arg[j] storage */
argRGB[j] = (const GLchan (*)[4]) ccolor[j];
- if (textureUnit->CombineOperandRGB[j] == GL_ONE_MINUS_SRC_COLOR) {
+ if (textureUnit->_CurrentCombine->OperandRGB[j] == GL_ONE_MINUS_SRC_COLOR) {
for (i = 0; i < n; i++) {
dst[i][RCOMP] = CHAN_MAX - src[i][RCOMP];
dst[i][GCOMP] = CHAN_MAX - src[i][GCOMP];
dst[i][BCOMP] = CHAN_MAX - src[i][BCOMP];
}
}
- else if (textureUnit->CombineOperandRGB[j] == GL_SRC_ALPHA) {
+ else if (textureUnit->_CurrentCombine->OperandRGB[j] == GL_SRC_ALPHA) {
for (i = 0; i < n; i++) {
dst[i][RCOMP] = src[i][ACOMP];
dst[i][GCOMP] = src[i][ACOMP];
@@ -3292,7 +3249,7 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
}
}
else {
- ASSERT(textureUnit->CombineOperandRGB[j] ==GL_ONE_MINUS_SRC_ALPHA);
+ ASSERT(textureUnit->_CurrentCombine->OperandRGB[j] ==GL_ONE_MINUS_SRC_ALPHA);
for (i = 0; i < n; i++) {
dst[i][RCOMP] = CHAN_MAX - src[i][ACOMP];
dst[i][GCOMP] = CHAN_MAX - src[i][ACOMP];
@@ -3304,7 +3261,7 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
for (j = 0; j < numAlphaArgs; j++) {
- const GLenum srcA = textureUnit->CombineSourceA[j];
+ const GLenum srcA = textureUnit->_CurrentCombine->SourceA[j];
switch (srcA) {
case GL_TEXTURE:
@@ -3346,7 +3303,7 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
}
}
- if (textureUnit->CombineOperandA[j] == GL_ONE_MINUS_SRC_ALPHA) {
+ if (textureUnit->_CurrentCombine->OperandA[j] == GL_ONE_MINUS_SRC_ALPHA) {
const GLchan (*src)[4] = argA[j];
GLchan (*dst)[4] = ccolor[j];
argA[j] = (const GLchan (*)[4]) ccolor[j];
@@ -3359,7 +3316,7 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
/*
* Do the texture combine.
*/
- switch (textureUnit->CombineModeRGB) {
+ switch (textureUnit->_CurrentCombine->ModeRGB) {
case GL_REPLACE:
{
const GLchan (*arg0)[4] = (const GLchan (*)[4]) argRGB[0];
@@ -3651,7 +3608,7 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
_mesa_problem(ctx, "invalid combine mode");
}
- switch (textureUnit->CombineModeA) {
+ switch (textureUnit->_CurrentCombine->ModeA) {
case GL_REPLACE:
{
const GLchan (*arg0)[4] = (const GLchan (*)[4]) argA[0];
@@ -3823,8 +3780,8 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
* were written such that the GL_COMBINE_ALPHA value could be set to
* GL_DOT3.
*/
- if (textureUnit->CombineModeRGB == GL_DOT3_RGBA_EXT ||
- textureUnit->CombineModeRGB == GL_DOT3_RGBA) {
+ if (textureUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA_EXT ||
+ textureUnit->_CurrentCombine->ModeRGB == GL_DOT3_RGBA) {
for (i = 0; i < n; i++) {
rgba[i][ACOMP] = rgba[i][RCOMP];
}
@@ -3835,20 +3792,6 @@ texture_combine( const GLcontext *ctx, GLuint unit, GLuint n,
/**
- * Implement NVIDIA's GL_NV_texture_env_combine4 extension when
- * texUnit->EnvMode == GL_COMBINE4_NV.
- */
-static INLINE void
-texture_combine4( const GLcontext *ctx, GLuint unit, GLuint n,
- CONST GLchan (*primary_rgba)[4],
- CONST GLchan *texelBuffer,
- GLchan (*rgba)[4] )
-{
-}
-
-
-
-/**
* Apply a conventional OpenGL texture env mode (REPLACE, ADD, BLEND,
* MODULATE, or DECAL) to an array of fragments.
* Input: textureUnit - pointer to texture unit to apply
@@ -4276,20 +4219,12 @@ _swrast_texture_span( GLcontext *ctx, struct sw_span *span )
for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) {
if (ctx->Texture.Unit[unit]._ReallyEnabled) {
const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
- if (texUnit->EnvMode == GL_COMBINE) {
- /* GL_ARB/EXT_texture_env_combine */
+ if (texUnit->_CurrentCombine != &texUnit->_EnvMode ) {
texture_combine( ctx, unit, span->end,
(CONST GLchan (*)[4]) primary_rgba,
swrast->TexelBuffer,
span->array->rgba );
}
- else if (texUnit->EnvMode == GL_COMBINE4_NV) {
- /* GL_NV_texture_env_combine4 */
- texture_combine4( ctx, unit, span->end,
- (CONST GLchan (*)[4]) primary_rgba,
- swrast->TexelBuffer,
- span->array->rgba );
- }
else {
/* conventional texture blend */
const GLchan (*texels)[4] = (const GLchan (*)[4])
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 16:49:43 +0000