void GL_AlphaTest(int state);
void GL_ColorMask(int r, int g, int b, int a);
void GL_Color(float cr, float cg, float cb, float ca);
-void GL_LockArrays(int first, int count);
void GL_ActiveTexture(unsigned int num);
void GL_ClientActiveTexture(unsigned int num);
void GL_Scissor(int x, int y, int width, int height);
unsigned int GL_Backend_CompileProgram(int vertexstrings_count, const char **vertexstrings_list, int geometrystrings_count, const char **geometrystrings_list, int fragmentstrings_count, const char **fragmentstrings_list);
void GL_Backend_FreeProgram(unsigned int prog);
-extern cvar_t gl_lockarrays;
-extern cvar_t gl_mesh_copyarrays;
extern cvar_t gl_paranoid;
extern cvar_t gl_printcheckerror;
void R_Mesh_Draw(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int bufferobject3i, int bufferobject3s);
// saves a section of the rendered frame to a .tga or .jpg file
-qboolean SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, unsigned char *buffer3, int x, int y, int width, int height, qboolean flipx, qboolean flipy, qboolean flipdiagonal, qboolean jpeg, qboolean gammacorrect);
+qboolean SCR_ScreenShot(char *filename, unsigned char *buffer1, unsigned char *buffer2, unsigned char *buffer3, int x, int y, int width, int height, qboolean flipx, qboolean flipy, qboolean flipdiagonal, qboolean jpeg, qboolean png, qboolean gammacorrect);
// used by R_Envmap_f and internally in backend, clears the frame
void R_ClearScreen(qboolean fogcolor);