mesa/es: Fix GL_OES_texture_cube_map support.

Unlike in OpenGL, GL_OES_texture_cube_map says that all coordinates are
changed the same time by the token GL_TEXTURE_GEN_STR_OES, and the
initial mode is GL_REFLECTION_MAP_OES.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

5 files changed, 197 insertions, 19 deletions

diff --git a/src/mesa/es/main/APIspec.xml b/src/mesa/es/main/APIspec.xml
index 8926007f8d..a7dbdc4249 100644
--- a/src/mesa/es/main/APIspec.xml
+++ b/src/mesa/es/main/APIspec.xml
@@ -3546,7 +3546,6 @@
 
 	<function name="TexGenf" template="TexGen" gltype="GLfloat" expand_vector="true"/>
 	<function name="TexGenfv" template="TexGen" gltype="GLfloat"/>
-	<function name="TexGeni" template="TexGen" gltype="GLint" expand_vector="true"/>
 
 	<function name="Clear" template="Clear"/>
 	<function name="ClearColor" template="ClearColor" gltype="GLclampf"/>
@@ -3873,12 +3872,12 @@
 	<function name="TexEnvx" template="TexEnv" gltype="GLfixed" expand_vector="true"/>
 	<function name="TexEnvxv" template="TexEnv" gltype="GLfixed"/>
 
-	<function name="TexGenfOES" template="TexGen" gltype="GLfloat" expand_vector="true"/>
-	<function name="TexGenfvOES" template="TexGen" gltype="GLfloat"/>
-	<function name="TexGeniOES" template="TexGen" gltype="GLint" expand_vector="true"/>
-	<function name="TexGenivOES" template="TexGen" gltype="GLint"/>
-	<function name="TexGenxOES" template="TexGen" gltype="GLfixed" expand_vector="true"/>
-	<function name="TexGenxvOES" template="TexGen" gltype="GLfixed"/>
+	<function name="TexGenfOES" external="true" template="TexGen" gltype="GLfloat" expand_vector="true"/>
+	<function name="TexGenfvOES" external="true" template="TexGen" gltype="GLfloat"/>
+	<function name="TexGeniOES" external="true" template="TexGen" gltype="GLint" expand_vector="true"/>
+	<function name="TexGenivOES" external="true" template="TexGen" gltype="GLint"/>
+	<function name="TexGenxOES" external="true" template="TexGen" gltype="GLfixed" expand_vector="true"/>
+	<function name="TexGenxvOES" external="true" template="TexGen" gltype="GLfixed"/>
 
 	<function name="Clear" template="Clear"/>
 	<function name="ClearColor" template="ClearColor" gltype="GLclampf"/>
@@ -3892,8 +3891,8 @@
 	<function name="ColorMask" template="ColorMask"/>
 	<function name="DepthMask" template="DepthMask"/>
 
-	<function name="Disable" template="Disable"/>
-	<function name="Enable" template="Enable"/>
+	<function name="Disable" external="true" template="Disable"/>
+	<function name="Enable" external="true" template="Enable"/>
 	<function name="Finish" template="Finish"/>
 	<function name="Flush" template="Flush"/>
 
@@ -3932,15 +3931,15 @@
 	<function name="GetTexEnviv" template="GetTexEnv" gltype="GLint"/>
 	<function name="GetTexEnvxv" template="GetTexEnv" gltype="GLfixed"/>
 
-	<function name="GetTexGenfvOES" template="GetTexGen" gltype="GLfloat"/>
-	<function name="GetTexGenivOES" template="GetTexGen" gltype="GLint"/>
-	<function name="GetTexGenxvOES" template="GetTexGen" gltype="GLfixed"/>
+	<function name="GetTexGenfvOES" external="true" template="GetTexGen" gltype="GLfloat"/>
+	<function name="GetTexGenivOES" external="true" template="GetTexGen" gltype="GLint"/>
+	<function name="GetTexGenxvOES" external="true" template="GetTexGen" gltype="GLfixed"/>
 
 	<function name="GetTexParameterfv" template="GetTexParameter" gltype="GLfloat"/>
 	<function name="GetTexParameteriv" template="GetTexParameter" gltype="GLint"/>
 	<function name="GetTexParameterxv" template="GetTexParameter" gltype="GLfixed"/>
 
-	<function name="IsEnabled" template="IsEnabled"/>
+	<function name="IsEnabled" external="true" template="IsEnabled"/>
 
 	<function name="DepthRangef" template="DepthRange" gltype="GLclampf"/>
 	<function name="DepthRangex" template="DepthRange" gltype="GLclampx"/>
diff --git a/src/mesa/es/main/es_enable.c b/src/mesa/es/main/es_enable.c
new file mode 100644
index 0000000000..351caacd77
--- /dev/null
+++ b/src/mesa/es/main/es_enable.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "GLES/gl.h"
+#include "GLES/glext.h"
+
+#include "main/compiler.h" /* for ASSERT */
+
+
+#ifndef GL_TEXTURE_GEN_S
+#define GL_TEXTURE_GEN_S			0x0C60
+#define GL_TEXTURE_GEN_T			0x0C61
+#define GL_TEXTURE_GEN_R			0x0C62
+#endif
+
+
+extern void GL_APIENTRY _es_Disable(GLenum cap);
+extern void GL_APIENTRY _es_Enable(GLenum cap);
+extern GLboolean GL_APIENTRY _es_IsEnabled(GLenum cap);
+
+extern void GL_APIENTRY _mesa_Disable(GLenum cap);
+extern void GL_APIENTRY _mesa_Enable(GLenum cap);
+extern GLboolean GL_APIENTRY _mesa_IsEnabled(GLenum cap);
+
+
+void GL_APIENTRY
+_es_Disable(GLenum cap)
+{
+   switch (cap) {
+   case GL_TEXTURE_GEN_STR_OES:
+      /* disable S, T, and R at the same time */
+      _mesa_Disable(GL_TEXTURE_GEN_S);
+      _mesa_Disable(GL_TEXTURE_GEN_T);
+      _mesa_Disable(GL_TEXTURE_GEN_R);
+      break;
+   default:
+      _mesa_Disable(cap);
+      break;
+   }
+}
+
+
+void GL_APIENTRY
+_es_Enable(GLenum cap)
+{
+   switch (cap) {
+   case GL_TEXTURE_GEN_STR_OES:
+      /* enable S, T, and R at the same time */
+      _mesa_Enable(GL_TEXTURE_GEN_S);
+      _mesa_Enable(GL_TEXTURE_GEN_T);
+      _mesa_Enable(GL_TEXTURE_GEN_R);
+      break;
+   default:
+      _mesa_Enable(cap);
+      break;
+   }
+}
+
+
+GLboolean GL_APIENTRY
+_es_IsEnabled(GLenum cap)
+{
+   switch (cap) {
+   case GL_TEXTURE_GEN_STR_OES:
+      cap = GL_TEXTURE_GEN_S;
+   default:
+      break;
+   }
+
+   return _mesa_IsEnabled(cap);
+}
diff --git a/src/mesa/es/main/es_texgen.c b/src/mesa/es/main/es_texgen.c
new file mode 100644
index 0000000000..c29a0a7f13
--- /dev/null
+++ b/src/mesa/es/main/es_texgen.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "GLES/gl.h"
+#include "GLES/glext.h"
+
+#include "main/compiler.h" /* for ASSERT */
+
+
+#ifndef GL_S
+#define GL_S					0x2000
+#define GL_T					0x2001
+#define GL_R					0x2002
+#endif
+
+
+extern void GL_APIENTRY _es_GetTexGenfv(GLenum coord, GLenum pname, GLfloat *params);
+extern void GL_APIENTRY _es_TexGenf(GLenum coord, GLenum pname, GLfloat param);
+extern void GL_APIENTRY _es_TexGenfv(GLenum coord, GLenum pname, const GLfloat *params);
+
+extern void GL_APIENTRY _mesa_GetTexGenfv(GLenum coord, GLenum pname, GLfloat *params);
+extern void GL_APIENTRY _mesa_TexGenf(GLenum coord, GLenum pname, GLfloat param);
+extern void GL_APIENTRY _mesa_TexGenfv(GLenum coord, GLenum pname, const GLfloat *params);
+
+
+void GL_APIENTRY
+_es_GetTexGenfv(GLenum coord, GLenum pname, GLfloat *params)
+{
+   ASSERT(coord == GL_TEXTURE_GEN_STR_OES);
+   _mesa_GetTexGenfv(GL_S, pname, params);
+}
+
+
+void GL_APIENTRY
+_es_TexGenf(GLenum coord, GLenum pname, GLfloat param)
+{
+   ASSERT(coord == GL_TEXTURE_GEN_STR_OES);
+   /* set S, T, and R at the same time */
+   _mesa_TexGenf(GL_S, pname, param);
+   _mesa_TexGenf(GL_T, pname, param);
+   _mesa_TexGenf(GL_R, pname, param);
+}
+
+
+void GL_APIENTRY
+_es_TexGenfv(GLenum coord, GLenum pname, const GLfloat *params)
+{
+   ASSERT(coord == GL_TEXTURE_GEN_STR_OES);
+   /* set S, T, and R at the same time */
+   _mesa_TexGenfv(GL_S, pname, params);
+   _mesa_TexGenfv(GL_T, pname, params);
+   _mesa_TexGenfv(GL_R, pname, params);
+}
diff --git a/src/mesa/es/main/get_gen.py b/src/mesa/es/main/get_gen.py
index 9da0b6b742..fee6670104 100644
--- a/src/mesa/es/main/get_gen.py
+++ b/src/mesa/es/main/get_gen.py
@@ -391,12 +391,9 @@ StateVars_es1 = [
         # OES_texture_cube_map
 	( "GL_TEXTURE_CUBE_MAP_ARB", GLboolean,
 	  ["_mesa_IsEnabled(GL_TEXTURE_CUBE_MAP_ARB)"], "", None),
-	( "GL_TEXTURE_GEN_S", GLboolean,
+	( "GL_TEXTURE_GEN_STR_OES", GLboolean,
+          # S, T, and R are always set at the same time
 	  ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & S_BIT) ? 1 : 0)"], "", None),
-	( "GL_TEXTURE_GEN_T", GLboolean,
-	  ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & T_BIT) ? 1 : 0)"], "", None),
-	( "GL_TEXTURE_GEN_R", GLboolean,
-	  ["((ctx->Texture.Unit[ctx->Texture.CurrentUnit].TexGenEnabled & R_BIT) ? 1 : 0)"], "", None),
         # ARB_multisample
 	( "GL_MULTISAMPLE_ARB", GLboolean,
 	  ["ctx->Multisample.Enabled"], "", ["ARB_multisample"] ),
@@ -695,6 +692,10 @@ def EmitHeader():
 #define GL_PALETTE8_RGB5_A1_OES                                 0x8B99
 #endif
 
+/* GL_OES_texture_cube_map */
+#ifndef GL_OES_texture_cube_map
+#define GL_TEXTURE_GEN_STR_OES                                  0x8D60
+#endif
 
 #define FLOAT_TO_BOOLEAN(X)   ( (X) ? GL_TRUE : GL_FALSE )
 #define FLOAT_TO_FIXED(F)     ( ((F) * 65536.0f > INT_MAX) ? INT_MAX : \\
diff --git a/src/mesa/es/main/specials_es1.c b/src/mesa/es/main/specials_es1.c
index 0ace2924b3..a4f14490f3 100644
--- a/src/mesa/es/main/specials_es1.c
+++ b/src/mesa/es/main/specials_es1.c
@@ -195,5 +195,19 @@ _es_GetString(GLenum name)
 void
 _mesa_initialize_context_extra(GLcontext *ctx)
 {
-   /* nothing here */
+   GLuint i;
+
+   /**
+    * GL_OES_texture_cube_map says
+    * "Initially all texture generation modes are set to REFLECTION_MAP_OES"
+    */
+   for (i = 0; i < MAX_TEXTURE_UNITS; i++) {
+      struct gl_texture_unit *texUnit = &ctx->Texture.Unit[i];
+      texUnit->GenS.Mode = GL_REFLECTION_MAP_NV;
+      texUnit->GenT.Mode = GL_REFLECTION_MAP_NV;
+      texUnit->GenR.Mode = GL_REFLECTION_MAP_NV;
+      texUnit->GenS._ModeBit = TEXGEN_REFLECTION_MAP_NV;
+      texUnit->GenT._ModeBit = TEXGEN_REFLECTION_MAP_NV;
+      texUnit->GenR._ModeBit = TEXGEN_REFLECTION_MAP_NV;
+   }
 }