support Q3BSP version 47 loading (format now written by q3map2 :( )

[xonotic/darkplaces.git] / gl_backend.c

diff --git a/gl_backend.c b/gl_backend.c
index f28f593c5331a974073a96497810ab35985b52b6..fa0aba57999ad42dfa2d22200b134a8cb3826a27 100644 (file)
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -6,7 +6,6 @@ cvar_t gl_mesh_drawrangeelements = {0, "gl_mesh_drawrangeelements", "1", "use gl
 cvar_t gl_mesh_testarrayelement = {0, "gl_mesh_testarrayelement", "0", "use glBegin(GL_TRIANGLES);glArrayElement();glEnd(); primitives instead of glDrawElements (useful to test for driver bugs with glDrawElements)"};
 cvar_t gl_mesh_testmanualfeeding = {0, "gl_mesh_testmanualfeeding", "0", "use glBegin(GL_TRIANGLES);glTexCoord2f();glVertex3f();glEnd(); primitives instead of glDrawElements (useful to test for driver bugs with glDrawElements)"};
 cvar_t gl_mesh_prefer_short_elements = {0, "gl_mesh_prefer_short_elements", "1", "use GL_UNSIGNED_SHORT element arrays instead of GL_UNSIGNED_INT"};
-cvar_t gl_workaround_mac_texmatrix = {0, "gl_workaround_mac_texmatrix", "0", "if set to 1 this uses glLoadMatrixd followed by glLoadIdentity to clear a texture matrix (normally glLoadIdentity is sufficient by itself), if set to 2 it uses glLoadMatrixd without glLoadIdentity"};
 cvar_t gl_paranoid = {0, "gl_paranoid", "0", "enables OpenGL error checking and other tests"};
 cvar_t gl_printcheckerror = {0, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"};
 
@@ -16,7 +15,7 @@ cvar_t gl_polyblend = {CVAR_SAVE, "gl_polyblend", "1", "tints view while underwa
 cvar_t gl_dither = {CVAR_SAVE, "gl_dither", "1", "enables OpenGL dithering (16bit looks bad with this off)"};
 cvar_t gl_lockarrays = {0, "gl_lockarrays", "0", "enables use of glLockArraysEXT, may cause glitches with some broken drivers, and may be slower than normal"};
 cvar_t gl_lockarrays_minimumvertices = {0, "gl_lockarrays_minimumvertices", "1", "minimum number of vertices required for use of glLockArraysEXT, setting this too low may reduce performance"};
-cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "1", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering"};
+cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "3", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering, 0 disables VBO allocation or use, 1 enables VBOs for vertex and triangle data, 2 only for vertex data, 3 for vertex data and triangle data of simple meshes (ones with only one surface)"};
 
 cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"};
 qboolean v_flipped_state = false;
@@ -256,7 +255,6 @@ void gl_backend_init(void)
        Cvar_RegisterVariable(&gl_vbo);
        Cvar_RegisterVariable(&gl_paranoid);
        Cvar_RegisterVariable(&gl_printcheckerror);
-       Cvar_RegisterVariable(&gl_workaround_mac_texmatrix);
 #ifdef NORENDER
        Cvar_SetValue("r_render", 0);
 #endif
@@ -1106,8 +1104,20 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int firsttriangle, int numtri
                element3i += firsttriangle * 3;
        if (element3s)
                element3s += firsttriangle * 3;
-       if (gl_vbo.integer != 1)
+       switch (gl_vbo.integer)
+       {
+       default:
+       case 0:
+       case 2:
                bufferobject3i = bufferobject3s = 0;
+               break;
+       case 1:
+               break;
+       case 3:
+               if (firsttriangle)
+                       bufferobject3i = bufferobject3s = 0;
+               break;
+       }
        CHECKGLERROR
        r_refdef.stats.meshes++;
        r_refdef.stats.meshes_elements += numelements;
@@ -1970,7 +1980,6 @@ void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix)
                        CHECKGLERROR
                        Matrix4x4_ToArrayDoubleGL(&unit->matrix, glmatrix);
                        GL_ActiveTexture(unitnum);
-                       GL_ClientActiveTexture(unitnum);
                        qglMatrixMode(GL_TEXTURE);CHECKGLERROR
                        qglLoadMatrixd(glmatrix);CHECKGLERROR
                        qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
@@ -1985,18 +1994,8 @@ void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix)
                        unit->matrix = identitymatrix;
                        CHECKGLERROR
                        GL_ActiveTexture(unitnum);
-                       GL_ClientActiveTexture(unitnum);
                        qglMatrixMode(GL_TEXTURE);CHECKGLERROR
-                       if (gl_workaround_mac_texmatrix.integer)
-                       {
-                               qglLoadMatrixd(gl_identitymatrix);CHECKGLERROR
-                               if (gl_workaround_mac_texmatrix.integer == 2)
-                                       qglLoadIdentity();CHECKGLERROR
-                       }
-                       else
-                       {
-                               qglLoadIdentity();CHECKGLERROR
-                       }
+                       qglLoadIdentity();CHECKGLERROR
                        qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
                }
        }
@@ -2167,8 +2166,8 @@ void R_Mesh_ResetTextureState(void)
                        unit->texmatrixenabled = false;
                        unit->matrix = identitymatrix;
                        CHECKGLERROR
-                       qglMatrixMode(GL_TEXTURE);CHECKGLERROR
                        GL_ActiveTexture(unitnum);
+                       qglMatrixMode(GL_TEXTURE);CHECKGLERROR
                        qglLoadIdentity();CHECKGLERROR
                        qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
                }