summaryrefslogtreecommitdiff
path: root/src/mesa/main/texstate.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/main/texstate.c')
-rw-r--r--src/mesa/main/texstate.c114
1 files changed, 61 insertions, 53 deletions
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index 18afaf4edd..c9f8a0656e 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
- * Version: 6.5.3
+ * Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
@@ -1141,26 +1141,29 @@ _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params )
/* Texture Parameters */
/**********************************************************************/
+/**
+ * Check if a coordinate wrap mode is supported for the texture target.
+ * \return GL_TRUE if legal, GL_FALSE otherwise
+ */
static GLboolean
-_mesa_validate_texture_wrap_mode(GLcontext * ctx,
- GLenum target, GLenum eparam)
+validate_texture_wrap_mode(GLcontext * ctx, GLenum target, GLenum wrap)
{
const struct gl_extensions * const e = & ctx->Extensions;
- if (eparam == GL_CLAMP || eparam == GL_CLAMP_TO_EDGE ||
- (eparam == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) {
+ if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE ||
+ (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) {
/* any texture target */
return GL_TRUE;
}
else if (target != GL_TEXTURE_RECTANGLE_NV &&
- (eparam == GL_REPEAT ||
- (eparam == GL_MIRRORED_REPEAT &&
+ (wrap == GL_REPEAT ||
+ (wrap == GL_MIRRORED_REPEAT &&
e->ARB_texture_mirrored_repeat) ||
- (eparam == GL_MIRROR_CLAMP_EXT &&
+ (wrap == GL_MIRROR_CLAMP_EXT &&
(e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
- (eparam == GL_MIRROR_CLAMP_TO_EDGE_EXT &&
+ (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT &&
(e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
- (eparam == GL_MIRROR_CLAMP_TO_BORDER_EXT &&
+ (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT &&
(e->EXT_texture_mirror_clamp)))) {
/* non-rectangle texture */
return GL_TRUE;
@@ -1178,36 +1181,6 @@ _mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param )
}
-/**
- * Update derrived compare function state.
- */
-void
-_mesa_update_texture_compare_function(struct gl_texture_object *tObj,
- GLboolean in_frag_prog)
-{
- if (in_frag_prog) {
- tObj->_Function = GL_NONE;
- }
- else if (tObj->CompareFlag) {
- /* GL_SGIX_shadow */
- if (tObj->CompareOperator == GL_TEXTURE_LEQUAL_R_SGIX) {
- tObj->_Function = GL_LEQUAL;
- }
- else {
- ASSERT(tObj->CompareOperator == GL_TEXTURE_GEQUAL_R_SGIX);
- tObj->_Function = GL_GEQUAL;
- }
- }
- else if (tObj->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB) {
- /* GL_ARB_shadow */
- tObj->_Function = tObj->CompareFunc;
- }
- else {
- tObj->_Function = GL_NONE; /* pass depth through as grayscale */
- }
-}
-
-
void GLAPIENTRY
_mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
{
@@ -1313,7 +1286,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
case GL_TEXTURE_WRAP_S:
if (texObj->WrapS == eparam)
return;
- if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
+ if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->WrapS = eparam;
}
@@ -1324,7 +1297,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
case GL_TEXTURE_WRAP_T:
if (texObj->WrapT == eparam)
return;
- if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
+ if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->WrapT = eparam;
}
@@ -1335,7 +1308,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
case GL_TEXTURE_WRAP_R:
if (texObj->WrapR == eparam)
return;
- if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
+ if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->WrapR = eparam;
}
@@ -1415,7 +1388,6 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
if (ctx->Extensions.SGIX_shadow) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE;
- _mesa_update_texture_compare_function(texObj, GL_FALSE);
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
@@ -1430,7 +1402,6 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
op == GL_TEXTURE_GEQUAL_R_SGIX) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->CompareOperator = op;
- _mesa_update_texture_compare_function(texObj, GL_FALSE);
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)");
@@ -1469,7 +1440,6 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
if (mode == GL_NONE || mode == GL_COMPARE_R_TO_TEXTURE_ARB) {
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->CompareMode = mode;
- _mesa_update_texture_compare_function(texObj, GL_FALSE);
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
@@ -1505,8 +1475,6 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
"glTexParameter(bad GL_TEXTURE_COMPARE_FUNC_ARB)");
return;
}
-
- _mesa_update_texture_compare_function(texObj, GL_FALSE);
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
@@ -1527,8 +1495,6 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
"glTexParameter(bad GL_DEPTH_TEXTURE_MODE_ARB)");
return;
}
-
- _mesa_update_texture_compare_function(texObj, GL_FALSE);
}
else {
_mesa_error(ctx, GL_INVALID_ENUM,
@@ -1552,7 +1518,7 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
return;
}
- texObj->Complete = GL_FALSE;
+ texObj->_Complete = GL_FALSE;
if (ctx->Driver.TexParameter) {
(*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params );
@@ -2830,6 +2796,47 @@ update_texture_matrices( GLcontext *ctx )
/**
+ * Update texture object's _Function field. We need to do this
+ * whenever any of the texture object's shadow-related fields change
+ * or when we start/stop using a fragment program.
+ *
+ * This function could be expanded someday to update additional per-object
+ * fields that depend on assorted state changes.
+ */
+static void
+update_texture_compare_function(GLcontext *ctx,
+ struct gl_texture_object *tObj)
+{
+ /* XXX temporarily disable this test since it breaks the GLSL
+ * shadow2D(), etc. functions.
+ */
+ if (0 /*ctx->FragmentProgram._Current*/) {
+ /* Texel/coordinate comparison is ignored for programs.
+ * See GL_ARB_fragment_program/shader spec for details.
+ */
+ tObj->_Function = GL_NONE;
+ }
+ else if (tObj->CompareFlag) {
+ /* GL_SGIX_shadow */
+ if (tObj->CompareOperator == GL_TEXTURE_LEQUAL_R_SGIX) {
+ tObj->_Function = GL_LEQUAL;
+ }
+ else {
+ ASSERT(tObj->CompareOperator == GL_TEXTURE_GEQUAL_R_SGIX);
+ tObj->_Function = GL_GEQUAL;
+ }
+ }
+ else if (tObj->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB) {
+ /* GL_ARB_shadow */
+ tObj->_Function = tObj->CompareFunc;
+ }
+ else {
+ tObj->_Function = GL_NONE; /* pass depth through as grayscale */
+ }
+}
+
+
+/**
* Helper function for determining which texture object (1D, 2D, cube, etc)
* should actually be used.
*/
@@ -2839,12 +2846,13 @@ texture_override(GLcontext *ctx,
struct gl_texture_object *texObj, GLuint textureBit)
{
if (!texUnit->_ReallyEnabled && (enableBits & textureBit)) {
- if (!texObj->Complete) {
+ if (!texObj->_Complete) {
_mesa_test_texobj_completeness(ctx, texObj);
}
- if (texObj->Complete) {
+ if (texObj->_Complete) {
texUnit->_ReallyEnabled = textureBit;
texUnit->_Current = texObj;
+ update_texture_compare_function(ctx, texObj);
}
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 05:49:46 +0000