]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - vid_shared.c
added support for glPolygonOffset (not used though)
[xonotic/darkplaces.git] / vid_shared.c
index 561e0d8d274ad24e669ad16f8f9fd7184f7609cb..2743742d0bd61a0ccc3c3ef5164d850b856ce8ed 100644 (file)
@@ -8,25 +8,34 @@ viddef_t vid;
 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
 qboolean isRagePro = false; // LordHavoc: the ATI Rage Pro has limitations with per pixel alpha (the color scaler does not apply to per pixel alpha images...), although not as bad as a G200.
 
-// LordHavoc: GL_ARB_multitexture support
+// GL_ARB_multitexture
 int gl_textureunits = 0;
-// LordHavoc: GL_ARB_texture_env_combine or GL_EXT_texture_env_combine support
+// GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
 int gl_combine_extension = false;
-// LordHavoc: GL_EXT_compiled_vertex_array support
+// GL_EXT_compiled_vertex_array
 int gl_supportslockarrays = false;
-// LordHavoc: GLX_SGI_video_sync and WGL_EXT_swap_control
+// GLX_SGI_video_sync or WGL_EXT_swap_control
 int gl_videosyncavailable = false;
+// stencil available
+int gl_stencil = false;
+// 3D textures available
+int gl_texture3d = false;
+// GL_ARB_texture_cubemap
+int gl_texturecubemap = false;
+// GL_ARB_texture_env_dot3
+int gl_dot3arb = false;
 
 // LordHavoc: if window is hidden, don't update screen
-int vid_hidden = false;
+int vid_hidden = true;
 // LordHavoc: if window is not the active window, don't hog as much CPU time,
 // let go of the mouse, turn off sound, and restore system gamma ramps...
 int vid_activewindow = true;
 
-cvar_t vid_fullscreen = {0, "vid_fullscreen", "1"};
-cvar_t vid_width = {0, "vid_width", "800"};
-cvar_t vid_height = {0, "vid_height", "600"};
-cvar_t vid_bitsperpixel = {0, "vid_bitsperpixel", "32"};
+cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1"};
+cvar_t vid_width = {CVAR_SAVE, "vid_width", "640"};
+cvar_t vid_height = {CVAR_SAVE, "vid_height", "480"};
+cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "16"};
+cvar_t vid_stencil = {CVAR_SAVE, "vid_stencil", "0"};
 
 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1"};
 cvar_t gl_combine = {0, "gl_combine", "1"};
@@ -95,6 +104,7 @@ void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
+void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
 
 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
@@ -104,7 +114,7 @@ void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, cons
 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
 void (GLAPIENTRY *qglArrayElement)(GLint i);
 
-void (GLAPIENTRY *qglColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
+void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
@@ -131,28 +141,48 @@ void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
 
 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
 
-//void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
-//void (GLAPIENTRY *qglStencilMask)(GLuint mask);
-//void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
-//void (GLAPIENTRY *qglClearStencil)(GLint s);
+void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
+void (GLAPIENTRY *qglStencilMask)(GLuint mask);
+void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
+void (GLAPIENTRY *qglClearStencil)(GLint s);
 
-//void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
-
-//void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
+void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
 
-void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
-void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
-void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
+void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
+void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
+GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
+GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
 
+void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
+void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
+void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
+void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+
+
 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
 
 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
 
+void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels);
+void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+
+void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
+
+void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
+
 int GL_CheckExtension(const char *name, const gl_extensionfunctionlist_t *funcs, const char *disableparm, int silent)
 {
        int failed = false;
@@ -221,12 +251,13 @@ static gl_extensionfunctionlist_t opengl110funcs[] =
        {"glDepthMask", (void **) &qglDepthMask},
        {"glDepthRange", (void **) &qglDepthRange},
        {"glDrawElements", (void **) &qglDrawElements},
+       {"glColorMask", (void **) &qglColorMask},
        {"glVertexPointer", (void **) &qglVertexPointer},
 //     {"glNormalPointer", (void **) &qglNormalPointer},
        {"glColorPointer", (void **) &qglColorPointer},
        {"glTexCoordPointer", (void **) &qglTexCoordPointer},
        {"glArrayElement", (void **) &qglArrayElement},
-       {"glColor4ub", (void **) &qglColor4ub},
+       {"glColor4f", (void **) &qglColor4f},
        {"glTexCoord2f", (void **) &qglTexCoord2f},
        {"glVertex2f", (void **) &qglVertex2f},
        {"glVertex3f", (void **) &qglVertex3f},
@@ -250,20 +281,33 @@ static gl_extensionfunctionlist_t opengl110funcs[] =
 //     {"glTranslated", (void **) &qglTranslated},
        {"glTranslatef", (void **) &qglTranslatef},
        {"glReadPixels", (void **) &qglReadPixels},
-//     {"glStencilFunc", (void **) &qglStencilFunc},
-//     {"glStencilMask", (void **) &qglStencilMask},
-//     {"glStencilOp", (void **) &qglStencilOp},
-//     {"glClearStencil", (void **) &qglClearStencil},
-//     {"glTexEnvf", (void **) &qglTexEnvf},
+       {"glStencilFunc", (void **) &qglStencilFunc},
+       {"glStencilMask", (void **) &qglStencilMask},
+       {"glStencilOp", (void **) &qglStencilOp},
+       {"glClearStencil", (void **) &qglClearStencil},
+       {"glTexEnvf", (void **) &qglTexEnvf},
        {"glTexEnvi", (void **) &qglTexEnvi},
-//     {"glTexParameterf", (void **) &qglTexParameterf},
+       {"glTexParameterf", (void **) &qglTexParameterf},
+       {"glTexParameterfv", (void **) &qglTexParameterfv},
        {"glTexParameteri", (void **) &qglTexParameteri},
+       {"glPixelStoref", (void **) &qglPixelStoref},
+       {"glPixelStorei", (void **) &qglPixelStorei},
+       {"glGenTextures", (void **) &qglGenTextures},
+       {"glDeleteTextures", (void **) &qglDeleteTextures},
        {"glBindTexture", (void **) &qglBindTexture},
+       {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
+       {"glAreTexturesResident", (void **) &qglAreTexturesResident},
+       {"glIsTexture", (void **) &qglIsTexture},
+       {"glTexImage1D", (void **) &qglTexImage1D},
        {"glTexImage2D", (void **) &qglTexImage2D},
+       {"glTexSubImage1D", (void **) &qglTexSubImage1D},
        {"glTexSubImage2D", (void **) &qglTexSubImage2D},
-       {"glDeleteTextures", (void **) &qglDeleteTextures},
-       {"glPixelStoref", (void **) &qglPixelStoref},
-       {"glPixelStorei", (void **) &qglPixelStorei},
+       {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
+       {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
+       {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
+       {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
+       {"glScissor", (void **) &qglScissor},
+       {"glPolygonOffset", (void **) &qglPolygonOffset},
        {NULL, NULL}
 };
 
@@ -294,9 +338,19 @@ static gl_extensionfunctionlist_t compiledvertexarrayfuncs[] =
        {NULL, NULL}
 };
 
+static gl_extensionfunctionlist_t texture3dextfuncs[] =
+{
+       {"glTexImage3DEXT", (void **) &qglTexImage3D},
+       {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
+       {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
+       {NULL, NULL}
+};
+
 void VID_CheckExtensions(void)
 {
+       gl_stencil = vid_stencil.integer;
        gl_combine_extension = false;
+       gl_dot3arb = false;
        gl_supportslockarrays = false;
        gl_textureunits = 1;
 
@@ -317,15 +371,13 @@ void VID_CheckExtensions(void)
        if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
        {
                qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
-               if (gl_textureunits > 1)
-                       gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
-               else
-               {
-                       Con_Printf("GL_ARB_multitexture with less than 2 units? - BROKEN DRIVER!\n");
-                       gl_textureunits = 1; // for sanity sake, make sure it's not 0
-               }
+               gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
+               if (gl_combine_extension)
+                       gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
        }
 
+       gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false);
+       gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false);
        gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
 
        // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
@@ -333,15 +385,6 @@ void VID_CheckExtensions(void)
                qglDrawRangeElements = qglDrawRangeElementsEXT;
 }
 
-double VID_CompareMode(int width1, int height1, int bpp1, int width2, int height2, int bpp2)
-{
-       double dw, dh, db;
-       dw = ((width2 - width1) / 2048) * 16;
-       dh = ((height2 - height1) / 1536) * 4;
-       db = (bpp2 - bpp1) / 32;
-       return dw * dw + dh * dh + db * db;
-}
-
 void Force_CenterView_f (void)
 {
        cl.viewangles[PITCH] = 0;
@@ -402,43 +445,123 @@ void IN_Mouse(usercmd_t *cmd, float mx, float my)
        }
 }
 
-void VID_InitCvars(void)
+void VID_Shared_Init(void)
 {
-       int i;
-
        Cvar_RegisterVariable(&vid_fullscreen);
        Cvar_RegisterVariable(&vid_width);
        Cvar_RegisterVariable(&vid_height);
        Cvar_RegisterVariable(&vid_bitsperpixel);
+       Cvar_RegisterVariable(&vid_stencil);
        Cvar_RegisterVariable(&vid_mouse);
        Cvar_RegisterVariable(&gl_combine);
        Cvar_RegisterVariable(&in_pitch_min);
        Cvar_RegisterVariable(&in_pitch_max);
        Cvar_RegisterVariable(&m_filter);
        Cmd_AddCommand("force_centerview", Force_CenterView_f);
-
-// interpret command-line parameters
-       if ((i = COM_CheckParm("-window")) != 0)
-               Cvar_SetValueQuick(&vid_fullscreen, false);
-       if ((i = COM_CheckParm("-fullscreen")) != 0)
-               Cvar_SetValueQuick(&vid_fullscreen, true);
-       if ((i = COM_CheckParm("-width")) != 0)
-               Cvar_SetQuick(&vid_width, com_argv[i+1]);
-       if ((i = COM_CheckParm("-height")) != 0)
-               Cvar_SetQuick(&vid_height, com_argv[i+1]);
-       if ((i = COM_CheckParm("-bpp")) != 0)
-               Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
+       Cmd_AddCommand("vid_restart", VID_Restart_f);
 }
 
-extern int VID_InitMode (int fullscreen, int width, int height, int bpp);
-int VID_Mode(int fullscreen, int width, int height, int bpp)
+int current_vid_fullscreen;
+int current_vid_width;
+int current_vid_height;
+int current_vid_bitsperpixel;
+int current_vid_stencil;
+extern int VID_InitMode (int fullscreen, int width, int height, int bpp, int stencil);
+int VID_Mode(int fullscreen, int width, int height, int bpp, int stencil)
 {
-       if (fullscreen)
-               Con_Printf("Video: %dx%dx%d fullscreen\n", width, height, bpp);
-       else
-               Con_Printf("Video: %dx%d windowed\n", width, height);
-       if (VID_InitMode(fullscreen, width, height, bpp))
+       Con_Printf("Video: %s %dx%dx%d %s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, stencil ? "with stencil" : "without stencil");
+       if (VID_InitMode(fullscreen, width, height, bpp, stencil))
+       {
+               current_vid_fullscreen = fullscreen;
+               current_vid_width = width;
+               current_vid_height = height;
+               current_vid_bitsperpixel = bpp;
+               current_vid_stencil = stencil;
+               Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
+               Cvar_SetValueQuick(&vid_width, width);
+               Cvar_SetValueQuick(&vid_height, height);
+               Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
+               Cvar_SetValueQuick(&vid_stencil, stencil);
                return true;
+       }
        else
                return false;
 }
+
+static void VID_OpenSystems(void)
+{
+       R_Modules_Start();
+       S_Open();
+       CDAudio_Open();
+}
+
+static void VID_CloseSystems(void)
+{
+       CDAudio_Close();
+       S_Close();
+       R_Modules_Shutdown();
+}
+
+void VID_Restart_f(void)
+{
+       Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp %s, to %s %dx%dx%dbpp %s.\n",
+               current_vid_fullscreen ? "fullscreen" : "window", current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil ? "with stencil" : "without stencil",
+               vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer ? "with stencil" : "without stencil");
+       VID_Close();
+       if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
+       {
+               Con_Printf("Video mode change failed\n");
+               if (!VID_Mode(current_vid_fullscreen, current_vid_width, current_vid_height, current_vid_bitsperpixel, current_vid_stencil))
+                       Sys_Error("Unable to restore to last working video mode\n");
+       }
+       VID_OpenSystems();
+}
+
+int vid_commandlinecheck = true;
+void VID_Open(void)
+{
+       int i;
+       if (vid_commandlinecheck)
+       {
+               // interpret command-line parameters
+               vid_commandlinecheck = false;
+               if ((i = COM_CheckParm("-window")) != 0)
+                       Cvar_SetValueQuick(&vid_fullscreen, false);
+               if ((i = COM_CheckParm("-fullscreen")) != 0)
+                       Cvar_SetValueQuick(&vid_fullscreen, true);
+               if ((i = COM_CheckParm("-width")) != 0)
+                       Cvar_SetQuick(&vid_width, com_argv[i+1]);
+               if ((i = COM_CheckParm("-height")) != 0)
+                       Cvar_SetQuick(&vid_height, com_argv[i+1]);
+               if ((i = COM_CheckParm("-bpp")) != 0)
+                       Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
+               if ((i = COM_CheckParm("-nostencil")) != 0)
+                       Cvar_SetValueQuick(&vid_stencil, 0);
+               if ((i = COM_CheckParm("-stencil")) != 0)
+                       Cvar_SetValueQuick(&vid_stencil, 1);
+       }
+
+       Con_Printf("Starting video system\n");
+       if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_stencil.integer))
+       {
+               Con_Printf("Desired video mode fail, trying fallbacks...\n");
+               if (!vid_stencil.integer || !VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, false))
+               {
+                       if (vid_fullscreen.integer)
+                       {
+                               if (!VID_Mode(true, 640, 480, 16, false))
+                                       if (!VID_Mode(false, 640, 480, 16, false))
+                                               Sys_Error("Video modes failed\n");
+                       }
+                       else
+                               Sys_Error("Windowed video failed\n");
+               }
+       }
+       VID_OpenSystems();
+}
+
+void VID_Close(void)
+{
+       VID_CloseSystems();
+       VID_Shutdown();
+}