diff options
Diffstat (limited to 'sys/glsink/EXT_paletted_texture.h')
| -rw-r--r-- | sys/glsink/EXT_paletted_texture.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/sys/glsink/EXT_paletted_texture.h b/sys/glsink/EXT_paletted_texture.h new file mode 100644 index 00000000..6df6b996 --- /dev/null +++ b/sys/glsink/EXT_paletted_texture.h @@ -0,0 +1,142 @@ +/*************************************************************
+ * *
+ * file : EXT_paletted_texture.h *
+ * author: Jens Schneider *
+ * date : 14.Mar.2001-10.Jul.2001 *
+ * e-mail: jens@glHint.de *
+ * *
+ * version 1.0ß *
+ * *
+ *************************************************************/
+
+#ifndef __EXT_paletted_texture_H_
+#define __EXT_paletted_texture_H_
+
+/*
+ * GLOBAL SWITCHES - enable/disable advanced features of this header
+ *
+ */
+#define EXT_PALETTED_TEXTURE_INITIALIZE 1 // enable generic init-routines
+#ifndef _WIN32
+#define GL_GLEXT_PROTOTYPES 1
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__)
+#define WIN32_LEAN_AND_MEAN 1
+#include <windows.h>
+#endif
+
+#ifndef APIENTRY
+#define APIENTRY
+#endif
+
+
+// Header file version number, required by OpenGL ABI for Linux
+#define GL_GLEXT_VERSION 7
+
+
+/*
+ * NEW TOKENS TO OPENGL 1.2.1
+ *
+ */
+#ifndef GL_EXT_paletted_texture
+#define GL_COLOR_INDEX1_EXT 0x80E2
+#define GL_COLOR_INDEX2_EXT 0x80E3
+#define GL_COLOR_INDEX4_EXT 0x80E4
+#define GL_COLOR_INDEX8_EXT 0x80E5
+#define GL_COLOR_INDEX12_EXT 0x80E6
+#define GL_COLOR_INDEX16_EXT 0x80E7
+#define GL_COLOR_TABLE_FORMAT_EXT 0x80D8
+#define GL_COLOR_TABLE_WIDTH_EXT 0x80D9
+#define GL_COLOR_TABLE_RED_SIZE_EXT 0x80DA
+#define GL_COLOR_TABLE_GREEN_SIZE_EXT 0x80DB
+#define GL_COLOR_TABLE_BLUE_SIZE_EXT 0x80DC
+#define GL_COLOR_TABLE_ALPHA_SIZE_EXT 0x80DD
+#define GL_COLOR_TABLE_LUMINANCE_SIZE_EXT 0x80DE
+#define GL_COLOR_TABLE_INTENSITY_SIZE_EXT 0x80DF
+#define GL_TEXTURE_INDEX_SIZE_EXT 0x80ED
+#define GL_EXT_paletted_texture 1
+#endif
+
+#ifndef _WIN32
+#ifdef GL_GLEXT_PROTOTYPES
+extern void APIENTRY glColorTableEXT (GLenum, GLenum, GLsizei, GLenum, GLenum, const GLvoid *);
+extern void APIENTRY glColorSubTableEXT(GLenum, GLsizei, GLsizei, GLenum, GLenum, const GLvoid *);
+extern void APIENTRY glGetColorTableEXT(GLenum, GLenum, GLenum, GLvoid *);
+extern void APIENTRY glGetColorTableParameterivEXT(GLenum, GLenum, GLint *);
+extern void APIENTRY glGetColorTableParameterfvEXT(GLenum, GLenum, GLfloat *);
+#endif // GL_GLEXT_PROTOTYPES
+#else // _WIN32
+typedef void (APIENTRY * PFNGLCOLORTABLEEXTPROC) (GLenum target, GLenum internalFormat, GLsizei width, GLenum format, GLenum type, const GLvoid *data);
+typedef void (APIENTRY * PFNGLCOLORSUBTABLEEXTPROC)(GLenum target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *data);
+typedef void (APIENTRY * PFNGLGETCOLORTABLEEXTPROC)(GLenum target, GLenum format, GLenum type, GLvoid *data);
+typedef void (APIENTRY * PFNGLGETCOLORTABLEPARAMETERIVEXTPROC)(GLenum target, GLenum pname, GLint *params);
+typedef void (APIENTRY * PFNGLGETCOLORTABLEPARAMETERFVEXTPROC)(GLenum target, GLenum pname, GLfloat *params);
+#endif // not _WIN32
+
+#ifdef EXT_PALETTED_TEXTURE_INITIALIZE
+#include<string.h> // string manipulation for runtime-check
+
+#ifdef _WIN32
+PFNGLCOLORTABLEEXTPROC glColorTableEXT = NULL;
+PFNGLCOLORSUBTABLEEXTPROC glColorSubTableEXT = NULL;
+PFNGLGETCOLORTABLEEXTPROC glGetColorTableEXT = NULL;
+PFNGLGETCOLORTABLEPARAMETERIVEXTPROC glGetColorTableParameterivEXT = NULL;
+PFNGLGETCOLORTABLEPARAMETERFVEXTPROC glGetColorTableParameterfvEXT = NULL;
+#endif // _WIN32
+
+int CheckForEXTPalettedTextureSupport(void) {
+ const char search[]="GL_EXT_paletted_texture";
+ int i, pos=0;
+ int maxpos=strlen(search)-1;
+ char extensions[10000];
+ strcpy(extensions,(const char *)glGetString(GL_EXTENSIONS));
+ int len=strlen(extensions);
+ for (i=0; i<len; i++) {
+ if ((i==0) || ((i>1) && extensions[i-1]==' ')) {
+ pos=0;
+ while(extensions[i]!=' ') {
+ if (extensions[i]==search[pos]) pos++;
+ if ((pos>maxpos) && extensions[i+1]==' ') {
+ //printf(search);
+ //printf(" supported.\n");
+ return 1;
+ }
+ i++;
+ }
+ }
+ }
+ //printf(search);
+ //printf(" not supported.\n");
+ return 0;
+}
+
+int GL_EXT_paletted_texture_Init(void) {
+ if (!CheckForEXTPalettedTextureSupport()) return 0;
+
+#ifdef _WIN32
+ glColorTableEXT = (PFNGLCOLORTABLEEXTPROC) wglGetProcAddress("glColorTableEXT");
+ if (glColorTableEXT==NULL) {fprintf(stderr,"glColorTableEXT not found.\n"); return 0;}
+ glColorSubTableEXT = (PFNGLCOLORSUBTABLEEXTPROC) wglGetProcAddress("glColorSubTableEXT");
+ if (glColorSubTableEXT==NULL) {fprintf(stderr,"glColorSubTableEXT not found.\n"); return 0;}
+ glGetColorTableEXT = (PFNGLGETCOLORTABLEEXTPROC) wglGetProcAddress("glGetColorTableEXT");
+ if (glGetColorTableEXT==NULL) {fprintf(stderr,"glGetColorTableEXT not found.\n"); return 0;}
+ glGetColorTableParameterivEXT = (PFNGLGETCOLORTABLEPARAMETERIVEXTPROC) wglGetProcAddress("glGetColorTableParameterivEXT");
+ if (glGetColorTableParameterivEXT==NULL) {fprintf(stderr,"glGetColorTableParameterivEXT not found.\n"); return 0;}
+ glGetColorTableParameterfvEXT = (PFNGLGETCOLORTABLEPARAMETERFVEXTPROC) wglGetProcAddress("glGetColorTableParameterfvEXT");
+ if (glGetColorTableParameterfvEXT==NULL) {fprintf(stderr,"glGetColorTableParameterfvEXT not found.\n"); return 0;}
+#endif // _WIN32
+ return 1;
+}
+
+#endif // EXT_PALETTED_TEXTURE_INITIALIZE
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // not __EXT_PALETTED_TEXTURE_H_
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