Merge of apricot branch game engine changes into trunk, excluding GLSL.

GLEW
====

Added the GLEW opengl extension library into extern/, always compiled
into Blender now. This is much nicer than doing this kind of extension
management manually, and will be used in the game engine, for GLSL, and
other opengl extensions.

* According to the GLEW website it works on Windows, Linux, Mac OS X,
  FreeBSD, Irix, and Solaris. There might still be platform specific
  issues due to this commit, so let me know and I'll look into it.
* This means also that all extensions will now always be compiled in,
  regardless of the glext.h on the platform where compilation happens.

Game Engine
===========

Refactoring of the use of opengl extensions and other drawing code
in the game engine, and cleaning up some hacks related to GLSL
integration. These changes will be merged into trunk too after this.

The game engine graphics demos & apricot level survived my tests,
but this could use some good testing of course.

For users: please test with the options "Generate Display Lists" and
"Vertex Arrays" enabled, these should be the fastest and are supposed
to be "unreliable", but if that's the case that's probably due to bugs
that can be fixed.

* The game engine now also uses GLEW for extensions, replacing the
  custom opengl extensions code that was there. Removes a lot of
  #ifdef's, but the runtime checks stay of course.
* Removed the WITHOUT_GLEXT environment variable. This was added to
  work around a specific bug and only disabled multitexturing anyway.
  It might also have caused a slowdown since it was retrieving the
  environment variable for every vertex in immediate mode (bug #13680).

* Refactored the code to allow drawing skinned meshes with vertex
  arrays too, removing some specific immediate mode drawing functions
  for this that only did extra normal calculation. Now it always splits
  vertices of flat faces instead.
* Refactored normal recalculation with some minor optimizations,
  required for the above change.
* Removed some outdated code behind the __NLA_OLDDEFORM #ifdef.
* Fixed various bugs in setting of multitexture coordinates and vertex
  attributes for vertex arrays. These were not being enabled/disabled
  correct according to the opengl spec, leading to crashes. Also tangent
  attributes used an immediate mode call for vertex arrays, which can't
  work.
* Fixed use of uninitialized variable in RAS_TexVert.
* Exporting skinned meshes was doing O(n^2) lookups for vertices and
  deform weights, now uses same trick as regular meshes.

1 files changed, 0 insertions, 132 deletions

diff --git a/source/gameengine/BlenderRoutines/mac_compat_glext.h b/source/gameengine/BlenderRoutines/mac_compat_glext.h
deleted file mode 100644
index 0ec676963b1..00000000000
--- a/source/gameengine/BlenderRoutines/mac_compat_glext.h
+++ /dev/null
@@ -1,132 +0,0 @@
-#ifndef __mac_compat_glext_h_
-#define __mac_compat_glext_h_
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define APIENTRYP *
-#  define GL_GLEXT_LEGACY 1
-#  include <OpenGL/gl.h>
-
-//#if GL_ARB_shader_objects
-typedef char GLcharARB;
-typedef void *GLhandleARB;
-//#endif
-
-//#if GL_ARB_vertex_buffer_object
-typedef long GLintptrARB;
-typedef long GLsizeiptrARB;
-//#endif
-
-
-// GL_ARB_multitexture
-typedef void (APIENTRYP PFNGLACTIVETEXTUREARBPROC) (GLenum texture);
-typedef void (APIENTRYP PFNGLCLIENTACTIVETEXTUREARBPROC) (GLenum texture);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1DARBPROC) (GLenum target, GLdouble s);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1DVARBPROC) (GLenum target, const GLdouble *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1FARBPROC) (GLenum target, GLfloat s);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1FVARBPROC) (GLenum target, const GLfloat *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1IARBPROC) (GLenum target, GLint s);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1IVARBPROC) (GLenum target, const GLint *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1SARBPROC) (GLenum target, GLshort s);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD1SVARBPROC) (GLenum target, const GLshort *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2DARBPROC) (GLenum target, GLdouble s, GLdouble t);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2DVARBPROC) (GLenum target, const GLdouble *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2FVARBPROC) (GLenum target, const GLfloat *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2IARBPROC) (GLenum target, GLint s, GLint t);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2IVARBPROC) (GLenum target, const GLint *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2SARBPROC) (GLenum target, GLshort s, GLshort t);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD2SVARBPROC) (GLenum target, const GLshort *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3DARBPROC) (GLenum target, GLdouble s, GLdouble t, GLdouble r);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3DVARBPROC) (GLenum target, const GLdouble *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3FARBPROC) (GLenum target, GLfloat s, GLfloat t, GLfloat r);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3FVARBPROC) (GLenum target, const GLfloat *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3IARBPROC) (GLenum target, GLint s, GLint t, GLint r);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3IVARBPROC) (GLenum target, const GLint *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3SARBPROC) (GLenum target, GLshort s, GLshort t, GLshort r);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD3SVARBPROC) (GLenum target, const GLshort *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4DARBPROC) (GLenum target, GLdouble s, GLdouble t, GLdouble r, GLdouble q);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4DVARBPROC) (GLenum target, const GLdouble *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4FARBPROC) (GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4FVARBPROC) (GLenum target, const GLfloat *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4IARBPROC) (GLenum target, GLint s, GLint t, GLint r, GLint q);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4IVARBPROC) (GLenum target, const GLint *v);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4SARBPROC) (GLenum target, GLshort s, GLshort t, GLshort r, GLshort q);
-typedef void (APIENTRYP PFNGLMULTITEXCOORD4SVARBPROC) (GLenum target, const GLshort *v);
-
-//GL_ARB_shader_objects
-typedef void (APIENTRYP PFNGLDELETEOBJECTARBPROC) (unsigned int obj);
-typedef unsigned int (APIENTRYP PFNGLGETHANDLEARBPROC) (GLenum pname);
-typedef void (APIENTRYP PFNGLDETACHOBJECTARBPROC) (unsigned int containerObj, unsigned int attachedObj);
-typedef unsigned int (APIENTRYP PFNGLCREATESHADEROBJECTARBPROC) (GLenum shaderType);
-typedef void (APIENTRYP PFNGLSHADERSOURCEARBPROC) (unsigned int shaderObj, GLsizei count, const GLcharARB* *string, const GLint *length);
-typedef void (APIENTRYP PFNGLCOMPILESHADERARBPROC) (unsigned int shaderObj);
-typedef unsigned int (APIENTRYP PFNGLCREATEPROGRAMOBJECTARBPROC) (void);
-typedef void (APIENTRYP PFNGLATTACHOBJECTARBPROC) (unsigned int containerObj, unsigned int obj);
-typedef void (APIENTRYP PFNGLLINKPROGRAMARBPROC) (unsigned int programObj);
-typedef void (APIENTRYP PFNGLUSEPROGRAMOBJECTARBPROC) (unsigned int programObj);
-typedef void (APIENTRYP PFNGLVALIDATEPROGRAMARBPROC) (unsigned int programObj);
-typedef void (APIENTRYP PFNGLUNIFORM1FARBPROC) (GLint location, GLfloat v0);
-typedef void (APIENTRYP PFNGLUNIFORM2FARBPROC) (GLint location, GLfloat v0, GLfloat v1);
-typedef void (APIENTRYP PFNGLUNIFORM3FARBPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
-typedef void (APIENTRYP PFNGLUNIFORM4FARBPROC) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
-typedef void (APIENTRYP PFNGLUNIFORM1IARBPROC) (GLint location, GLint v0);
-typedef void (APIENTRYP PFNGLUNIFORM2IARBPROC) (GLint location, GLint v0, GLint v1);
-typedef void (APIENTRYP PFNGLUNIFORM3IARBPROC) (GLint location, GLint v0, GLint v1, GLint v2);
-typedef void (APIENTRYP PFNGLUNIFORM4IARBPROC) (GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
-typedef void (APIENTRYP PFNGLUNIFORM1FVARBPROC) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRYP PFNGLUNIFORM2FVARBPROC) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRYP PFNGLUNIFORM3FVARBPROC) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRYP PFNGLUNIFORM4FVARBPROC) (GLint location, GLsizei count, const GLfloat *value);
-typedef void (APIENTRYP PFNGLUNIFORM1IVARBPROC) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRYP PFNGLUNIFORM2IVARBPROC) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRYP PFNGLUNIFORM3IVARBPROC) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRYP PFNGLUNIFORM4IVARBPROC) (GLint location, GLsizei count, const GLint *value);
-typedef void (APIENTRYP PFNGLUNIFORMMATRIX2FVARBPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
-typedef void (APIENTRYP PFNGLUNIFORMMATRIX3FVARBPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
-typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVARBPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
-typedef void (APIENTRYP PFNGLGETOBJECTPARAMETERFVARBPROC) (unsigned int obj, GLenum pname, GLfloat *params);
-typedef void (APIENTRYP PFNGLGETOBJECTPARAMETERIVARBPROC) (unsigned int obj, GLenum pname, GLint *params);
-typedef void (APIENTRYP PFNGLGETINFOLOGARBPROC) (unsigned int obj, GLsizei maxLength, GLsizei *length, void *infoLog);
-typedef void (APIENTRYP PFNGLGETATTACHEDOBJECTSARBPROC) (unsigned int containerObj, GLsizei maxCount, GLsizei *count, unsigned int *obj);
-typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONARBPROC) (unsigned int programObj, const void *name);
-typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMARBPROC) (unsigned int programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
-typedef void (APIENTRYP PFNGLGETUNIFORMFVARBPROC) (unsigned int programObj, GLint location, GLfloat *params);
-typedef void (APIENTRYP PFNGLGETUNIFORMIVARBPROC) (unsigned int programObj, GLint location, GLint *params);
-typedef void (APIENTRYP PFNGLGETSHADERSOURCEARBPROC) (unsigned int obj, GLsizei maxLength, GLsizei *length, void *source);
-
-
-//GL_ARB_vertex_shader
-typedef void (APIENTRYP PFNGLBINDATTRIBLOCATIONARBPROC) (unsigned int  programObj, GLuint index, const GLcharARB *name);
-typedef void (APIENTRYP PFNGLGETACTIVEATTRIBARBPROC) (unsigned int  programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
-typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONARBPROC) (unsigned int  programObj, const GLcharARB *name);
-
-
-//GL_ARB_vertex_program
-typedef void (APIENTRYP PFNGLVERTEXATTRIB1FARBPROC) (GLuint index, GLfloat x);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB1FVARBPROC) (GLuint index, const GLfloat *v);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB2FARBPROC) (GLuint index, GLfloat x, GLfloat y);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB2FVARBPROC) (GLuint index, const GLfloat *v);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB3FARBPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat z);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB3FVARBPROC) (GLuint index, const GLfloat *v);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB4FARBPROC) (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
-typedef void (APIENTRYP PFNGLVERTEXATTRIB4FVARBPROC) (GLuint index, const GLfloat *v);
-typedef void (APIENTRYP PFNGLGETPROGRAMSTRINGARBPROC) (GLenum target, GLenum pname, GLvoid *string);
-typedef void (APIENTRYP PFNGLGETVERTEXATTRIBDVARBPROC) (GLuint index, GLenum pname, GLdouble *params);
-typedef void (APIENTRYP PFNGLGETVERTEXATTRIBFVARBPROC) (GLuint index, GLenum pname, GLfloat *params);
-typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVARBPROC) (GLuint index, GLenum pname, GLint *params);
-
-#define GL_FRAGMENT_SHADER                0x8B30
-#define GL_COMPILE_STATUS                 0x8B81
-#define GL_LINK_STATUS                    0x8B82
-#define GL_VALIDATE_STATUS                0x8B83
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif