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-rw-r--r--src/mesa/main/extensions.c4
-rw-r--r--src/mesa/main/glheader.h10
-rw-r--r--src/mesa/main/mtypes.h3
-rw-r--r--src/mesa/main/texstate.c24
-rw-r--r--src/mesa/swrast/s_texture.c33
5 files changed, 56 insertions, 18 deletions
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 7e96b9e1b5e..8b7de99fd91 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -1,4 +1,4 @@
-/* $Id: extensions.c,v 1.64 2001/08/13 18:09:34 brianp Exp $ */
+/* $Id: extensions.c,v 1.65 2001/10/17 13:31:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -65,6 +65,7 @@ static struct {
{ OFF, "GL_ARB_texture_env_add", F(EXT_texture_env_add) },
{ OFF, "GL_ARB_texture_env_combine", F(ARB_texture_env_combine) },
{ OFF, "GL_ARB_texture_env_dot3", F(ARB_texture_env_dot3) },
+ { OFF, "GL_ARB_texture_mirrored_repeat", F(ARB_texture_mirrored_repeat)},
{ ON, "GL_ARB_transpose_matrix", 0 },
{ ON, "GL_EXT_abgr", 0 },
{ ON, "GL_EXT_bgra", 0 },
@@ -138,6 +139,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
"GL_ARB_texture_env_add",
"GL_ARB_texture_env_combine",
"GL_ARB_texture_env_dot3",
+ "GL_ARB_texture_mirrored_repeat",
"GL_EXT_blend_color",
"GL_EXT_blend_func_separate",
"GL_EXT_blend_logic_op",
diff --git a/src/mesa/main/glheader.h b/src/mesa/main/glheader.h
index 41c47420409..ed3f76ba6b4 100644
--- a/src/mesa/main/glheader.h
+++ b/src/mesa/main/glheader.h
@@ -1,4 +1,4 @@
-/* $Id: glheader.h,v 1.22 2001/07/16 15:54:23 brianp Exp $ */
+/* $Id: glheader.h,v 1.23 2001/10/17 13:31:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -260,4 +260,12 @@ typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESC
typedef union { GLfloat f; GLint i; } fi_type;
+#ifndef GL_MIRRORED_REPEAT_ARB
+#define GL_MIRRORED_REPEAT_ARB 0x8370
+#endif
+#ifndef GL_ARB_texture_mirrored_repeat
+#define GL_ARB_texture_mirrored_repeat 1
+#endif
+
+
#endif /* GLHEADER_H */
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 9325934a070..c670e574132 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -1,4 +1,4 @@
-/* $Id: mtypes.h,v 1.50 2001/07/28 19:28:49 keithw Exp $ */
+/* $Id: mtypes.h,v 1.51 2001/10/17 13:31:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -1202,6 +1202,7 @@ struct gl_extensions {
GLboolean ARB_texture_cube_map;
GLboolean ARB_texture_env_combine;
GLboolean ARB_texture_env_dot3;
+ GLboolean ARB_texture_mirrored_repeat;
GLboolean EXT_blend_color;
GLboolean EXT_blend_func_separate;
GLboolean EXT_blend_logic_op;
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index 0205d30fdd9..f2f02116066 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -1,4 +1,4 @@
-/* $Id: texstate.c,v 1.57 2001/09/18 23:06:14 kschultz Exp $ */
+/* $Id: texstate.c,v 1.58 2001/10/17 13:31:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -140,16 +140,10 @@ _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param )
return;
}
break;
- case GL_DOT3_RGB_EXT:
- case GL_DOT3_RGBA_EXT:
- if (!ctx->Extensions.EXT_texture_env_dot3) {
- TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode);
- return;
- }
- break;
case GL_DOT3_RGB_ARB:
case GL_DOT3_RGBA_ARB:
- if (!ctx->Extensions.ARB_texture_env_dot3) {
+ if (!ctx->Extensions.EXT_texture_env_dot3 &&
+ !ctx->Extensions.ARB_texture_env_dot3) {
TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode);
return;
}
@@ -929,7 +923,9 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
eparam==GL_REPEAT ||
eparam==GL_CLAMP_TO_EDGE ||
(eparam == GL_CLAMP_TO_BORDER_ARB &&
- ctx->Extensions.ARB_texture_border_clamp)) {
+ ctx->Extensions.ARB_texture_border_clamp) ||
+ (eparam == GL_MIRRORED_REPEAT_ARB &&
+ ctx->Extensions.ARB_texture_mirrored_repeat)) {
texObj->WrapS = eparam;
}
else {
@@ -944,7 +940,9 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
eparam==GL_REPEAT ||
eparam==GL_CLAMP_TO_EDGE ||
(eparam == GL_CLAMP_TO_BORDER_ARB &&
- ctx->Extensions.ARB_texture_border_clamp)) {
+ ctx->Extensions.ARB_texture_border_clamp) ||
+ (eparam == GL_MIRRORED_REPEAT_ARB &&
+ ctx->Extensions.ARB_texture_mirrored_repeat)) {
texObj->WrapT = eparam;
}
else {
@@ -959,7 +957,9 @@ _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
eparam==GL_REPEAT ||
eparam==GL_CLAMP_TO_EDGE ||
(eparam == GL_CLAMP_TO_BORDER_ARB &&
- ctx->Extensions.ARB_texture_border_clamp)) {
+ ctx->Extensions.ARB_texture_border_clamp) ||
+ (eparam == GL_MIRRORED_REPEAT_ARB &&
+ ctx->Extensions.ARB_texture_mirrored_repeat)) {
texObj->WrapR = eparam;
}
else {
diff --git a/src/mesa/swrast/s_texture.c b/src/mesa/swrast/s_texture.c
index 39d9a9c6129..fcbbe73a7a4 100644
--- a/src/mesa/swrast/s_texture.c
+++ b/src/mesa/swrast/s_texture.c
@@ -1,4 +1,4 @@
-/* $Id: s_texture.c,v 1.39 2001/09/19 20:30:44 kschultz Exp $ */
+/* $Id: s_texture.c,v 1.40 2001/10/17 13:31:07 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -92,6 +92,19 @@
I0 = IFLOOR(U); \
I1 = I0 + 1; \
} \
+ else if (wrapMode == GL_MIRRORED_REPEAT_ARB) { \
+ const GLint flr = IFLOOR(S); \
+ if (flr & 1) \
+ U = 1.0 - (S - (GLfloat) flr); /* flr is odd */ \
+ else \
+ U = S - (GLfloat) flr; /* flr is even */ \
+ I0 = IFLOOR(U); \
+ I1 = I0 + 1; \
+ if (I0 < 0) \
+ I0 = 0; \
+ if (I1 >= (GLint) SIZE) \
+ I1 = SIZE - 1; \
+ } \
else { \
ASSERT(wrapMode == GL_CLAMP); \
if (S <= 0.0F) \
@@ -142,6 +155,22 @@
else \
I = IFLOOR(S * SIZE); \
} \
+ else if (wrapMode == GL_MIRRORED_REPEAT_ARB) { \
+ const GLfloat min = 1.0F / (2.0F * SIZE); \
+ const GLfloat max = 1.0F - min; \
+ const GLint flr = IFLOOR(S); \
+ GLfloat u; \
+ if (flr & 1) \
+ u = 1.0 - (S - (GLfloat) flr); /* flr is odd */ \
+ else \
+ u = S - (GLfloat) flr; /* flr is even */ \
+ if (u < min) \
+ I = 0; \
+ else if (u > max) \
+ I = SIZE - 1; \
+ else \
+ I = IFLOOR(u * SIZE); \
+ } \
else { \
ASSERT(wrapMode == GL_CLAMP); \
/* s limited to [0,1] */ \
@@ -2133,8 +2162,6 @@ texture_combine(const GLcontext *ctx,
}
}
break;
- case GL_DOT3_RGB_EXT:
- case GL_DOT3_RGBA_EXT:
case GL_DOT3_RGB_ARB:
case GL_DOT3_RGBA_ARB:
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 17:55:23 +0000