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authorBrian Paul <brian.paul@tungstengraphics.com>2004-02-28 19:33:03 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2004-02-28 19:33:03 +0000
commitd14da2d5aefaaef6afb864098c15c6fc3ca746ee (patch)
treecd731a8494664dd45d58aa89eec1c672062bdb42 /src/mesa/main
parente2df3d01afaa6919b82962a087056f517bb94193 (diff)
paltex demo from recent texcombine changes. Minor clean-ups
Diffstat (limited to 'src/mesa/main')
-rw-r--r--src/mesa/main/texstate.c50
1 files changed, 24 insertions, 26 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index 8cb247e413..b3204376d5 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
*
@@ -176,19 +176,19 @@ _mesa_print_texunit_state( GLcontext *ctx, GLuint unit )
* \param state texture_env_combine state vector to be filled-in.
* \param mode Classic texture environment mode (i.e., \c GL_REPLACE,
* \c GL_BLEND, \c GL_DECAL, etc.).
- * \param tex_base_format Base format of the texture associated with the
+ * \param texBaseFormat Base format of the texture associated with the
* texture unit.
*/
static void
-calculate_derived_texenv( struct gl_tex_env_combine_state * state,
- GLenum mode, GLenum tex_base_format )
+calculate_derived_texenv( struct gl_tex_env_combine_state *state,
+ GLenum mode, GLenum texBaseFormat )
{
GLenum mode_rgb;
GLenum mode_a;
*state = default_combine_state;
- switch( tex_base_format ) {
+ switch (texBaseFormat) {
case GL_ALPHA:
state->SourceRGB[0] = GL_PREVIOUS;
break;
@@ -205,18 +205,14 @@ calculate_derived_texenv( struct gl_tex_env_combine_state * state,
break;
default:
- state->SourceRGB[0] = GL_PREVIOUS;
- state->SourceA[0] = GL_PREVIOUS;
- state->ModeRGB = GL_REPLACE;
- state->ModeA = GL_REPLACE;
- ASSERT(0);
+ _mesa_problem(NULL, "Invalid texBaseFormat in calculate_derived_texenv");
return;
}
- switch( mode ) {
+ switch (mode) {
case GL_REPLACE:
case GL_MODULATE:
- mode_rgb = (tex_base_format == GL_ALPHA) ? GL_REPLACE : mode;
+ mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : mode;
mode_a = mode;
break;
@@ -230,7 +226,7 @@ calculate_derived_texenv( struct gl_tex_env_combine_state * state,
* incoming fragment color matches the definition in NV_texture_shader.
* The 1.5 spec simply marks these as "undefined".
*/
- switch( tex_base_format ) {
+ switch (texBaseFormat) {
case GL_ALPHA:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
@@ -251,7 +247,7 @@ calculate_derived_texenv( struct gl_tex_env_combine_state * state,
mode_rgb = GL_INTERPOLATE;
mode_a = GL_MODULATE;
- switch( tex_base_format ) {
+ switch (texBaseFormat) {
case GL_ALPHA:
mode_rgb = GL_REPLACE;
break;
@@ -272,15 +268,14 @@ calculate_derived_texenv( struct gl_tex_env_combine_state * state,
break;
case GL_ADD:
- mode_rgb = (tex_base_format == GL_ALPHA) ? GL_REPLACE : GL_ADD;
- mode_a = (tex_base_format == GL_INTENSITY) ? GL_ADD : GL_MODULATE;
+ mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : GL_ADD;
+ mode_a = (texBaseFormat == GL_INTENSITY) ? GL_ADD : GL_MODULATE;
break;
default:
- mode_rgb = GL_REPLACE;
- mode_a = GL_REPLACE;
- ASSERT(0);
- break;
+ _mesa_problem(NULL,
+ "Invalid texture env mode in calculate_derived_texenv");
+ return;
}
state->ModeRGB = (state->SourceRGB[0] != GL_PREVIOUS)
@@ -289,6 +284,7 @@ calculate_derived_texenv( struct gl_tex_env_combine_state * state,
? mode_a : GL_REPLACE;
}
+
void GLAPIENTRY
_mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
{
@@ -2954,9 +2950,11 @@ update_texture_state( GLcontext *ctx )
texUnit->_CurrentCombine = & texUnit->Combine;
}
else {
- calculate_derived_texenv( & texUnit->_EnvMode,
- texUnit->EnvMode,
- texUnit->_Current->Image[0][0]->Format );
+ GLenum format = texUnit->_Current->Image[0][0]->Format;
+ if (format == GL_COLOR_INDEX) {
+ format = GL_RGBA; /* a bit of a hack */
+ }
+ calculate_derived_texenv(&texUnit->_EnvMode, texUnit->EnvMode, format);
texUnit->_CurrentCombine = & texUnit->_EnvMode;
}
@@ -2982,8 +2980,8 @@ update_texture_state( GLcontext *ctx )
break;
default:
texUnit->_CurrentCombine->_NumArgsRGB = 0;
- ASSERT(0);
- break;
+ _mesa_problem(ctx, "invalid RGB combine mode in update_texture_state");
+ return;
}
switch (texUnit->_CurrentCombine->ModeA) {
@@ -3004,7 +3002,7 @@ update_texture_state( GLcontext *ctx )
break;
default:
texUnit->_CurrentCombine->_NumArgsA = 0;
- ASSERT(0);
+ _mesa_problem(ctx, "invalid Alpha combine mode in update_texture_state");
break;
}