1
2 #include "quakedef.h"
3 #include "cdaudio.h"
4
5 // global video state
6 viddef_t vid;
7
8 // LordHavoc: these are only set in wgl
9 qboolean isG200 = false; // LordHavoc: the Matrox G200 can't do per pixel alpha, and it uses a D3D driver for GL... ugh...
10 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.
11
12 // AK FIXME -> input_dest
13 qboolean in_client_mouse = true;
14
15 // AK where should it be placed ?
16 float in_mouse_x, in_mouse_y;
17 float in_windowmouse_x, in_windowmouse_y;
18
19 // value of GL_MAX_TEXTURE_<various>_SIZE
20 int gl_max_texture_size = 0;
21 int gl_max_3d_texture_size = 0;
22 int gl_max_cube_map_texture_size = 0;
23 int gl_max_rectangle_texture_size = 0;
24 // GL_ARB_multitexture
25 int gl_textureunits = 1;
26 // GL_ARB_texture_env_combine or GL_EXT_texture_env_combine
27 int gl_combine_extension = false;
28 // GL_EXT_compiled_vertex_array
29 int gl_supportslockarrays = false;
30 // GLX_SGI_swap_control or WGL_EXT_swap_control
31 int gl_videosyncavailable = false;
32 // stencil available
33 int gl_stencil = false;
34 // 3D textures available
35 int gl_texture3d = false;
36 // GL_ARB_texture_cubemap
37 int gl_texturecubemap = false;
38 // GL_ARB_texture_rectangle
39 int gl_texturerectangle = false;
40 // GL_ARB_texture_non_power_of_two
41 int gl_support_arb_texture_non_power_of_two = false;
42 // GL_ARB_texture_env_dot3
43 int gl_dot3arb = false;
44 // GL_ARB_depth_texture
45 int gl_depthtexture = false;
46 // GL_ARB_shadow
47 int gl_support_arb_shadow = false;
48 // GL_SGIS_texture_edge_clamp
49 int gl_support_clamptoedge = false;
50 // GL_EXT_texture_filter_anisotropic
51 int gl_support_anisotropy = false;
52 int gl_max_anisotropy = 1;
53 // OpenGL2.0 core glStencilOpSeparate, or GL_ATI_separate_stencil
54 int gl_support_separatestencil = false;
55 // GL_EXT_stencil_two_side
56 int gl_support_stenciltwoside = false;
57 // GL_EXT_blend_minmax
58 int gl_support_ext_blend_minmax = false;
59 // GL_EXT_blend_subtract
60 int gl_support_ext_blend_subtract = false;
61 // GL_ARB_shader_objects
62 int gl_support_shader_objects = false;
63 // GL_ARB_shading_language_100
64 int gl_support_shading_language_100 = false;
65 // GL_ARB_vertex_shader
66 int gl_support_vertex_shader = false;
67 // GL_ARB_fragment_shader
68 int gl_support_fragment_shader = false;
69 //GL_ARB_vertex_buffer_object
70 int gl_support_arb_vertex_buffer_object = false;
71 //GL_EXT_framebuffer_object
72 int gl_support_ext_framebuffer_object = false;
73 //GL_ARB_texture_compression
74 int gl_support_texture_compression = false;
75 //GL_ARB_occlusion_query
76 int gl_support_arb_occlusion_query = false;
77 //GL_AMD_texture_texture4
78 int gl_support_amd_texture_texture4 = false;
79 //GL_ARB_texture_gather
80 int gl_support_arb_texture_gather = false;
81
82 // LordHavoc: if window is hidden, don't update screen
83 qboolean vid_hidden = true;
84 // LordHavoc: if window is not the active window, don't hog as much CPU time,
85 // let go of the mouse, turn off sound, and restore system gamma ramps...
86 qboolean vid_activewindow = true;
87
88 // we don't know until we try it!
89 cvar_t vid_hardwaregammasupported = {CVAR_READONLY,"vid_hardwaregammasupported","1", "indicates whether hardware gamma is supported (updated by attempts to set hardware gamma ramps)"};
90 // whether hardware gamma ramps are currently in effect
91 qboolean vid_usinghwgamma = false;
92
93 int vid_gammarampsize = 0;
94 unsigned short *vid_gammaramps = NULL;
95 unsigned short *vid_systemgammaramps = NULL;
96
97 cvar_t vid_fullscreen = {CVAR_SAVE, "vid_fullscreen", "1", "use fullscreen (1) or windowed (0)"};
98 cvar_t vid_width = {CVAR_SAVE, "vid_width", "640", "resolution"};
99 cvar_t vid_height = {CVAR_SAVE, "vid_height", "480", "resolution"};
100 cvar_t vid_bitsperpixel = {CVAR_SAVE, "vid_bitsperpixel", "32", "how many bits per pixel to render at (32 or 16, 32 is recommended)"};
101 cvar_t vid_samples = {CVAR_SAVE, "vid_samples", "1", "how many anti-aliasing samples per pixel to request from the graphics driver (4 is recommended, 1 is faster)"};
102 cvar_t vid_refreshrate = {CVAR_SAVE, "vid_refreshrate", "60", "refresh rate to use, in hz (higher values flicker less, if supported by your monitor)"};
103 cvar_t vid_userefreshrate = {CVAR_SAVE, "vid_userefreshrate", "0", "set this to 1 to make vid_refreshrate used, or to 0 to let the engine choose a sane default"};
104 cvar_t vid_stereobuffer = {CVAR_SAVE, "vid_stereobuffer", "0", "enables 'quad-buffered' stereo rendering for stereo shutterglasses, HMD (head mounted display) devices, or polarized stereo LCDs, if supported by your drivers"};
105
106 cvar_t vid_vsync = {CVAR_SAVE, "vid_vsync", "0", "sync to vertical blank, prevents 'tearing' (seeing part of one frame and part of another on the screen at the same time), automatically disabled when doing timedemo benchmarks"};
107 cvar_t vid_mouse = {CVAR_SAVE, "vid_mouse", "1", "whether to use the mouse in windowed mode (fullscreen always does)"};
108 cvar_t vid_grabkeyboard = {CVAR_SAVE, "vid_grabkeyboard", "0", "whether to grab the keyboard when mouse is active (prevents use of volume control keys, music player keys, etc on some keyboards)"};
109 cvar_t vid_minwidth = {0, "vid_minwidth", "0", "minimum vid_width that is acceptable (to be set in default.cfg in mods)"};
110 cvar_t vid_minheight = {0, "vid_minheight", "0", "minimum vid_height that is acceptable (to be set in default.cfg in mods)"};
111 cvar_t gl_combine = {0, "gl_combine", "1", "faster rendering by using GL_ARB_texture_env_combine extension (part of OpenGL 1.3 and above)"};
112 cvar_t gl_finish = {0, "gl_finish", "0", "make the cpu wait for the graphics processor at the end of each rendered frame (can help with strange input or video lag problems on some machines)"};
113
114 cvar_t vid_stick_mouse = {CVAR_SAVE, "vid_stick_mouse", "0", "have the mouse stuck in the center of the screen" };
115 cvar_t vid_resizable = {CVAR_SAVE, "vid_resizable", "0", "0: window not resizable, 1: resizable, 2: window can be resized but the framebuffer isn't adjusted" };
116
117 cvar_t v_gamma = {CVAR_SAVE, "v_gamma", "1", "inverse gamma correction value, a brightness effect that does not affect white or black, and tends to make the image grey and dull"};
118 cvar_t v_contrast = {CVAR_SAVE, "v_contrast", "1", "brightness of white (values above 1 give a brighter image with increased color saturation, unlike v_gamma)"};
119 cvar_t v_brightness = {CVAR_SAVE, "v_brightness", "0", "brightness of black, useful for monitors that are too dark"};
120 cvar_t v_contrastboost = {CVAR_SAVE, "v_contrastboost", "1", "by how much to multiply the contrast in dark areas (1 is no change)"};
121 cvar_t v_color_enable = {CVAR_SAVE, "v_color_enable", "0", "enables black-grey-white color correction curve controls"};
122 cvar_t v_color_black_r = {CVAR_SAVE, "v_color_black_r", "0", "desired color of black"};
123 cvar_t v_color_black_g = {CVAR_SAVE, "v_color_black_g", "0", "desired color of black"};
124 cvar_t v_color_black_b = {CVAR_SAVE, "v_color_black_b", "0", "desired color of black"};
125 cvar_t v_color_grey_r = {CVAR_SAVE, "v_color_grey_r", "0.5", "desired color of grey"};
126 cvar_t v_color_grey_g = {CVAR_SAVE, "v_color_grey_g", "0.5", "desired color of grey"};
127 cvar_t v_color_grey_b = {CVAR_SAVE, "v_color_grey_b", "0.5", "desired color of grey"};
128 cvar_t v_color_white_r = {CVAR_SAVE, "v_color_white_r", "1", "desired color of white"};
129 cvar_t v_color_white_g = {CVAR_SAVE, "v_color_white_g", "1", "desired color of white"};
130 cvar_t v_color_white_b = {CVAR_SAVE, "v_color_white_b", "1", "desired color of white"};
131 cvar_t v_hwgamma = {CVAR_SAVE, "v_hwgamma", "1", "enables use of hardware gamma correction ramps if available (note: does not work very well on Windows2000 and above), values are 0 = off, 1 = attempt to use hardware gamma, 2 = use hardware gamma whether it works or not"};
132 cvar_t v_glslgamma = {CVAR_SAVE, "v_glslgamma", "0", "enables use of GLSL to apply gamma correction ramps if available (note: overrides v_hwgamma)"};
133 cvar_t v_psycho = {0, "v_psycho", "0", "easter egg (does not work on Windows2000 or above)"};
134
135 // brand of graphics chip
136 const char *gl_vendor;
137 // graphics chip model and other information
138 const char *gl_renderer;
139 // begins with 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 1.3.1, or 1.4.0
140 const char *gl_version;
141 // extensions list, space separated
142 const char *gl_extensions;
143 // WGL, GLX, or AGL
144 const char *gl_platform;
145 // another extensions list, containing platform-specific extensions that are
146 // not in the main list
147 const char *gl_platformextensions;
148 // name of driver library (opengl32.dll, libGL.so.1, or whatever)
149 char gl_driver[256];
150
151 // GL_ARB_multitexture
152 void (GLAPIENTRY *qglMultiTexCoord1f) (GLenum, GLfloat);
153 void (GLAPIENTRY *qglMultiTexCoord2f) (GLenum, GLfloat, GLfloat);
154 void (GLAPIENTRY *qglMultiTexCoord3f) (GLenum, GLfloat, GLfloat, GLfloat);
155 void (GLAPIENTRY *qglMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
156 void (GLAPIENTRY *qglActiveTexture) (GLenum);
157 void (GLAPIENTRY *qglClientActiveTexture) (GLenum);
158
159 // GL_EXT_compiled_vertex_array
160 void (GLAPIENTRY *qglLockArraysEXT) (GLint first, GLint count);
161 void (GLAPIENTRY *qglUnlockArraysEXT) (void);
162
163 // general GL functions
164
165 void (GLAPIENTRY *qglClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
166
167 void (GLAPIENTRY *qglClear)(GLbitfield mask);
168
169 void (GLAPIENTRY *qglAlphaFunc)(GLenum func, GLclampf ref);
170 void (GLAPIENTRY *qglBlendFunc)(GLenum sfactor, GLenum dfactor);
171 void (GLAPIENTRY *qglCullFace)(GLenum mode);
172
173 void (GLAPIENTRY *qglDrawBuffer)(GLenum mode);
174 void (GLAPIENTRY *qglReadBuffer)(GLenum mode);
175 void (GLAPIENTRY *qglEnable)(GLenum cap);
176 void (GLAPIENTRY *qglDisable)(GLenum cap);
177 GLboolean (GLAPIENTRY *qglIsEnabled)(GLenum cap);
178
179 void (GLAPIENTRY *qglEnableClientState)(GLenum cap);
180 void (GLAPIENTRY *qglDisableClientState)(GLenum cap);
181
182 void (GLAPIENTRY *qglGetBooleanv)(GLenum pname, GLboolean *params);
183 void (GLAPIENTRY *qglGetDoublev)(GLenum pname, GLdouble *params);
184 void (GLAPIENTRY *qglGetFloatv)(GLenum pname, GLfloat *params);
185 void (GLAPIENTRY *qglGetIntegerv)(GLenum pname, GLint *params);
186
187 GLenum (GLAPIENTRY *qglGetError)(void);
188 const GLubyte* (GLAPIENTRY *qglGetString)(GLenum name);
189 void (GLAPIENTRY *qglFinish)(void);
190 void (GLAPIENTRY *qglFlush)(void);
191
192 void (GLAPIENTRY *qglClearDepth)(GLclampd depth);
193 void (GLAPIENTRY *qglDepthFunc)(GLenum func);
194 void (GLAPIENTRY *qglDepthMask)(GLboolean flag);
195 void (GLAPIENTRY *qglDepthRange)(GLclampd near_val, GLclampd far_val);
196 void (GLAPIENTRY *qglColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
197
198 void (GLAPIENTRY *qglDrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
199 void (GLAPIENTRY *qglDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
200 void (GLAPIENTRY *qglVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
201 void (GLAPIENTRY *qglNormalPointer)(GLenum type, GLsizei stride, const GLvoid *ptr);
202 void (GLAPIENTRY *qglColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
203 void (GLAPIENTRY *qglTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);
204 void (GLAPIENTRY *qglArrayElement)(GLint i);
205
206 void (GLAPIENTRY *qglColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
207 void (GLAPIENTRY *qglTexCoord1f)(GLfloat s);
208 void (GLAPIENTRY *qglTexCoord2f)(GLfloat s, GLfloat t);
209 void (GLAPIENTRY *qglTexCoord3f)(GLfloat s, GLfloat t, GLfloat r);
210 void (GLAPIENTRY *qglTexCoord4f)(GLfloat s, GLfloat t, GLfloat r, GLfloat q);
211 void (GLAPIENTRY *qglVertex2f)(GLfloat x, GLfloat y);
212 void (GLAPIENTRY *qglVertex3f)(GLfloat x, GLfloat y, GLfloat z);
213 void (GLAPIENTRY *qglBegin)(GLenum mode);
214 void (GLAPIENTRY *qglEnd)(void);
215
216 void (GLAPIENTRY *qglMatrixMode)(GLenum mode);
217 void (GLAPIENTRY *qglOrtho)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
218 void (GLAPIENTRY *qglFrustum)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble near_val, GLdouble far_val);
219 void (GLAPIENTRY *qglViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
220 void (GLAPIENTRY *qglPushMatrix)(void);
221 void (GLAPIENTRY *qglPopMatrix)(void);
222 void (GLAPIENTRY *qglLoadIdentity)(void);
223 void (GLAPIENTRY *qglLoadMatrixd)(const GLdouble *m);
224 void (GLAPIENTRY *qglLoadMatrixf)(const GLfloat *m);
225 void (GLAPIENTRY *qglMultMatrixd)(const GLdouble *m);
226 void (GLAPIENTRY *qglMultMatrixf)(const GLfloat *m);
227 void (GLAPIENTRY *qglRotated)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z);
228 void (GLAPIENTRY *qglRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
229 void (GLAPIENTRY *qglScaled)(GLdouble x, GLdouble y, GLdouble z);
230 void (GLAPIENTRY *qglScalef)(GLfloat x, GLfloat y, GLfloat z);
231 void (GLAPIENTRY *qglTranslated)(GLdouble x, GLdouble y, GLdouble z);
232 void (GLAPIENTRY *qglTranslatef)(GLfloat x, GLfloat y, GLfloat z);
233
234 void (GLAPIENTRY *qglReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
235
236 void (GLAPIENTRY *qglStencilFunc)(GLenum func, GLint ref, GLuint mask);
237 void (GLAPIENTRY *qglStencilMask)(GLuint mask);
238 void (GLAPIENTRY *qglStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
239 void (GLAPIENTRY *qglClearStencil)(GLint s);
240
241 void (GLAPIENTRY *qglTexEnvf)(GLenum target, GLenum pname, GLfloat param);
242 void (GLAPIENTRY *qglTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
243 void (GLAPIENTRY *qglTexEnvi)(GLenum target, GLenum pname, GLint param);
244 void (GLAPIENTRY *qglTexParameterf)(GLenum target, GLenum pname, GLfloat param);
245 void (GLAPIENTRY *qglTexParameterfv)(GLenum target, GLenum pname, GLfloat *params);
246 void (GLAPIENTRY *qglTexParameteri)(GLenum target, GLenum pname, GLint param);
247 void (GLAPIENTRY *qglHint)(GLenum target, GLenum mode);
248
249 void (GLAPIENTRY *qglGenTextures)(GLsizei n, GLuint *textures);
250 void (GLAPIENTRY *qglDeleteTextures)(GLsizei n, const GLuint *textures);
251 void (GLAPIENTRY *qglBindTexture)(GLenum target, GLuint texture);
252 //void (GLAPIENTRY *qglPrioritizeTextures)(GLsizei n, const GLuint *textures, const GLclampf *priorities);
253 //GLboolean (GLAPIENTRY *qglAreTexturesResident)(GLsizei n, const GLuint *textures, GLboolean *residences);
254 GLboolean (GLAPIENTRY *qglIsTexture)(GLuint texture);
255 void (GLAPIENTRY *qglPixelStoref)(GLenum pname, GLfloat param);
256 void (GLAPIENTRY *qglPixelStorei)(GLenum pname, GLint param);
257
258 void (GLAPIENTRY *qglTexImage1D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
259 void (GLAPIENTRY *qglTexImage2D)(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
260 void (GLAPIENTRY *qglTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const GLvoid *pixels);
261 void (GLAPIENTRY *qglTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
262 void (GLAPIENTRY *qglCopyTexImage1D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
263 void (GLAPIENTRY *qglCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
264 void (GLAPIENTRY *qglCopyTexSubImage1D)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
265 void (GLAPIENTRY *qglCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
266
267
268 void (GLAPIENTRY *qglDrawRangeElementsEXT)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
269
270 //void (GLAPIENTRY *qglColorTableEXT)(int, int, int, int, int, const void *);
271
272 void (GLAPIENTRY *qglTexImage3D)(GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
273 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);
274 void (GLAPIENTRY *qglCopyTexSubImage3D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
275
276 void (GLAPIENTRY *qglScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
277
278 void (GLAPIENTRY *qglPolygonOffset)(GLfloat factor, GLfloat units);
279 void (GLAPIENTRY *qglPolygonMode)(GLenum face, GLenum mode);
280 void (GLAPIENTRY *qglPolygonStipple)(const GLubyte *mask);
281
282 void (GLAPIENTRY *qglClipPlane)(GLenum plane, const GLdouble *equation);
283 void (GLAPIENTRY *qglGetClipPlane)(GLenum plane, GLdouble *equation);
284
285 //[515]: added on 29.07.2005
286 void (GLAPIENTRY *qglLineWidth)(GLfloat width);
287 void (GLAPIENTRY *qglPointSize)(GLfloat size);
288
289 void (GLAPIENTRY *qglBlendEquationEXT)(GLenum);
290
291 void (GLAPIENTRY *qglStencilOpSeparate)(GLenum, GLenum, GLenum, GLenum);
292 void (GLAPIENTRY *qglStencilFuncSeparate)(GLenum, GLenum, GLint, GLuint);
293 void (GLAPIENTRY *qglActiveStencilFaceEXT)(GLenum);
294
295 void (GLAPIENTRY *qglDeleteObjectARB)(GLhandleARB obj);
296 GLhandleARB (GLAPIENTRY *qglGetHandleARB)(GLenum pname);
297 void (GLAPIENTRY *qglDetachObjectARB)(GLhandleARB containerObj, GLhandleARB attachedObj);
298 GLhandleARB (GLAPIENTRY *qglCreateShaderObjectARB)(GLenum shaderType);
299 void (GLAPIENTRY *qglShaderSourceARB)(GLhandleARB shaderObj, GLsizei count, const GLcharARB **string, const GLint *length);
300 void (GLAPIENTRY *qglCompileShaderARB)(GLhandleARB shaderObj);
301 GLhandleARB (GLAPIENTRY *qglCreateProgramObjectARB)(void);
302 void (GLAPIENTRY *qglAttachObjectARB)(GLhandleARB containerObj, GLhandleARB obj);
303 void (GLAPIENTRY *qglLinkProgramARB)(GLhandleARB programObj);
304 void (GLAPIENTRY *qglUseProgramObjectARB)(GLhandleARB programObj);
305 void (GLAPIENTRY *qglValidateProgramARB)(GLhandleARB programObj);
306 void (GLAPIENTRY *qglUniform1fARB)(GLint location, GLfloat v0);
307 void (GLAPIENTRY *qglUniform2fARB)(GLint location, GLfloat v0, GLfloat v1);
308 void (GLAPIENTRY *qglUniform3fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
309 void (GLAPIENTRY *qglUniform4fARB)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
310 void (GLAPIENTRY *qglUniform1iARB)(GLint location, GLint v0);
311 void (GLAPIENTRY *qglUniform2iARB)(GLint location, GLint v0, GLint v1);
312 void (GLAPIENTRY *qglUniform3iARB)(GLint location, GLint v0, GLint v1, GLint v2);
313 void (GLAPIENTRY *qglUniform4iARB)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
314 void (GLAPIENTRY *qglUniform1fvARB)(GLint location, GLsizei count, const GLfloat *value);
315 void (GLAPIENTRY *qglUniform2fvARB)(GLint location, GLsizei count, const GLfloat *value);
316 void (GLAPIENTRY *qglUniform3fvARB)(GLint location, GLsizei count, const GLfloat *value);
317 void (GLAPIENTRY *qglUniform4fvARB)(GLint location, GLsizei count, const GLfloat *value);
318 void (GLAPIENTRY *qglUniform1ivARB)(GLint location, GLsizei count, const GLint *value);
319 void (GLAPIENTRY *qglUniform2ivARB)(GLint location, GLsizei count, const GLint *value);
320 void (GLAPIENTRY *qglUniform3ivARB)(GLint location, GLsizei count, const GLint *value);
321 void (GLAPIENTRY *qglUniform4ivARB)(GLint location, GLsizei count, const GLint *value);
322 void (GLAPIENTRY *qglUniformMatrix2fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
323 void (GLAPIENTRY *qglUniformMatrix3fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
324 void (GLAPIENTRY *qglUniformMatrix4fvARB)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
325 void (GLAPIENTRY *qglGetObjectParameterfvARB)(GLhandleARB obj, GLenum pname, GLfloat *params);
326 void (GLAPIENTRY *qglGetObjectParameterivARB)(GLhandleARB obj, GLenum pname, GLint *params);
327 void (GLAPIENTRY *qglGetInfoLogARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *infoLog);
328 void (GLAPIENTRY *qglGetAttachedObjectsARB)(GLhandleARB containerObj, GLsizei maxCount, GLsizei *count, GLhandleARB *obj);
329 GLint (GLAPIENTRY *qglGetUniformLocationARB)(GLhandleARB programObj, const GLcharARB *name);
330 void (GLAPIENTRY *qglGetActiveUniformARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
331 void (GLAPIENTRY *qglGetUniformfvARB)(GLhandleARB programObj, GLint location, GLfloat *params);
332 void (GLAPIENTRY *qglGetUniformivARB)(GLhandleARB programObj, GLint location, GLint *params);
333 void (GLAPIENTRY *qglGetShaderSourceARB)(GLhandleARB obj, GLsizei maxLength, GLsizei *length, GLcharARB *source);
334
335 //void (GLAPIENTRY *qglVertexAttrib1fARB)(GLuint index, GLfloat v0);
336 //void (GLAPIENTRY *qglVertexAttrib1sARB)(GLuint index, GLshort v0);
337 //void (GLAPIENTRY *qglVertexAttrib1dARB)(GLuint index, GLdouble v0);
338 //void (GLAPIENTRY *qglVertexAttrib2fARB)(GLuint index, GLfloat v0, GLfloat v1);
339 //void (GLAPIENTRY *qglVertexAttrib2sARB)(GLuint index, GLshort v0, GLshort v1);
340 //void (GLAPIENTRY *qglVertexAttrib2dARB)(GLuint index, GLdouble v0, GLdouble v1);
341 //void (GLAPIENTRY *qglVertexAttrib3fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2);
342 //void (GLAPIENTRY *qglVertexAttrib3sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2);
343 //void (GLAPIENTRY *qglVertexAttrib3dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2);
344 //void (GLAPIENTRY *qglVertexAttrib4fARB)(GLuint index, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
345 //void (GLAPIENTRY *qglVertexAttrib4sARB)(GLuint index, GLshort v0, GLshort v1, GLshort v2, GLshort v3);
346 //void (GLAPIENTRY *qglVertexAttrib4dARB)(GLuint index, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
347 //void (GLAPIENTRY *qglVertexAttrib4NubARB)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
348 //void (GLAPIENTRY *qglVertexAttrib1fvARB)(GLuint index, const GLfloat *v);
349 //void (GLAPIENTRY *qglVertexAttrib1svARB)(GLuint index, const GLshort *v);
350 //void (GLAPIENTRY *qglVertexAttrib1dvARB)(GLuint index, const GLdouble *v);
351 //void (GLAPIENTRY *qglVertexAttrib2fvARB)(GLuint index, const GLfloat *v);
352 //void (GLAPIENTRY *qglVertexAttrib2svARB)(GLuint index, const GLshort *v);
353 //void (GLAPIENTRY *qglVertexAttrib2dvARB)(GLuint index, const GLdouble *v);
354 //void (GLAPIENTRY *qglVertexAttrib3fvARB)(GLuint index, const GLfloat *v);
355 //void (GLAPIENTRY *qglVertexAttrib3svARB)(GLuint index, const GLshort *v);
356 //void (GLAPIENTRY *qglVertexAttrib3dvARB)(GLuint index, const GLdouble *v);
357 //void (GLAPIENTRY *qglVertexAttrib4fvARB)(GLuint index, const GLfloat *v);
358 //void (GLAPIENTRY *qglVertexAttrib4svARB)(GLuint index, const GLshort *v);
359 //void (GLAPIENTRY *qglVertexAttrib4dvARB)(GLuint index, const GLdouble *v);
360 //void (GLAPIENTRY *qglVertexAttrib4ivARB)(GLuint index, const GLint *v);
361 //void (GLAPIENTRY *qglVertexAttrib4bvARB)(GLuint index, const GLbyte *v);
362 //void (GLAPIENTRY *qglVertexAttrib4ubvARB)(GLuint index, const GLubyte *v);
363 //void (GLAPIENTRY *qglVertexAttrib4usvARB)(GLuint index, const GLushort *v);
364 //void (GLAPIENTRY *qglVertexAttrib4uivARB)(GLuint index, const GLuint *v);
365 //void (GLAPIENTRY *qglVertexAttrib4NbvARB)(GLuint index, const GLbyte *v);
366 //void (GLAPIENTRY *qglVertexAttrib4NsvARB)(GLuint index, const GLshort *v);
367 //void (GLAPIENTRY *qglVertexAttrib4NivARB)(GLuint index, const GLint *v);
368 //void (GLAPIENTRY *qglVertexAttrib4NubvARB)(GLuint index, const GLubyte *v);
369 //void (GLAPIENTRY *qglVertexAttrib4NusvARB)(GLuint index, const GLushort *v);
370 //void (GLAPIENTRY *qglVertexAttrib4NuivARB)(GLuint index, const GLuint *v);
371 void (GLAPIENTRY *qglVertexAttribPointerARB)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const GLvoid *pointer);
372 void (GLAPIENTRY *qglEnableVertexAttribArrayARB)(GLuint index);
373 void (GLAPIENTRY *qglDisableVertexAttribArrayARB)(GLuint index);
374 void (GLAPIENTRY *qglBindAttribLocationARB)(GLhandleARB programObj, GLuint index, const GLcharARB *name);
375 void (GLAPIENTRY *qglGetActiveAttribARB)(GLhandleARB programObj, GLuint index, GLsizei maxLength, GLsizei *length, GLint *size, GLenum *type, GLcharARB *name);
376 GLint (GLAPIENTRY *qglGetAttribLocationARB)(GLhandleARB programObj, const GLcharARB *name);
377 //void (GLAPIENTRY *qglGetVertexAttribdvARB)(GLuint index, GLenum pname, GLdouble *params);
378 //void (GLAPIENTRY *qglGetVertexAttribfvARB)(GLuint index, GLenum pname, GLfloat *params);
379 //void (GLAPIENTRY *qglGetVertexAttribivARB)(GLuint index, GLenum pname, GLint *params);
380 //void (GLAPIENTRY *qglGetVertexAttribPointervARB)(GLuint index, GLenum pname, GLvoid **pointer);
381
382 //GL_ARB_vertex_buffer_object
383 void (GLAPIENTRY *qglBindBufferARB) (GLenum target, GLuint buffer);
384 void (GLAPIENTRY *qglDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
385 void (GLAPIENTRY *qglGenBuffersARB) (GLsizei n, GLuint *buffers);
386 GLboolean (GLAPIENTRY *qglIsBufferARB) (GLuint buffer);
387 GLvoid* (GLAPIENTRY *qglMapBufferARB) (GLenum target, GLenum access);
388 GLboolean (GLAPIENTRY *qglUnmapBufferARB) (GLenum target);
389 void (GLAPIENTRY *qglBufferDataARB) (GLenum target, GLsizeiptrARB size, const GLvoid *data, GLenum usage);
390 void (GLAPIENTRY *qglBufferSubDataARB) (GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid *data);
391
392 //GL_EXT_framebuffer_object
393 GLboolean (GLAPIENTRY *qglIsRenderbufferEXT)(GLuint renderbuffer);
394 void (GLAPIENTRY *qglBindRenderbufferEXT)(GLenum target, GLuint renderbuffer);
395 void (GLAPIENTRY *qglDeleteRenderbuffersEXT)(GLsizei n, const GLuint *renderbuffers);
396 void (GLAPIENTRY *qglGenRenderbuffersEXT)(GLsizei n, GLuint *renderbuffers);
397 void (GLAPIENTRY *qglRenderbufferStorageEXT)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
398 void (GLAPIENTRY *qglGetRenderbufferParameterivEXT)(GLenum target, GLenum pname, GLint *params);
399 GLboolean (GLAPIENTRY *qglIsFramebufferEXT)(GLuint framebuffer);
400 void (GLAPIENTRY *qglBindFramebufferEXT)(GLenum target, GLuint framebuffer);
401 void (GLAPIENTRY *qglDeleteFramebuffersEXT)(GLsizei n, const GLuint *framebuffers);
402 void (GLAPIENTRY *qglGenFramebuffersEXT)(GLsizei n, GLuint *framebuffers);
403 GLenum (GLAPIENTRY *qglCheckFramebufferStatusEXT)(GLenum target);
404 void (GLAPIENTRY *qglFramebufferTexture1DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
405 void (GLAPIENTRY *qglFramebufferTexture2DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
406 void (GLAPIENTRY *qglFramebufferTexture3DEXT)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
407 void (GLAPIENTRY *qglFramebufferRenderbufferEXT)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
408 void (GLAPIENTRY *qglGetFramebufferAttachmentParameterivEXT)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
409 void (GLAPIENTRY *qglGenerateMipmapEXT)(GLenum target);
410
411 void (GLAPIENTRY *qglCompressedTexImage3DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data);
412 void (GLAPIENTRY *qglCompressedTexImage2DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data);
413 void (GLAPIENTRY *qglCompressedTexImage1DARB)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data);
414 void (GLAPIENTRY *qglCompressedTexSubImage3DARB)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *data);
415 void (GLAPIENTRY *qglCompressedTexSubImage2DARB)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
416 void (GLAPIENTRY *qglCompressedTexSubImage1DARB)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
417 void (GLAPIENTRY *qglGetCompressedTexImageARB)(GLenum target, GLint lod, void *img);
418
419 void (GLAPIENTRY *qglGenQueriesARB)(GLsizei n, GLuint *ids);
420 void (GLAPIENTRY *qglDeleteQueriesARB)(GLsizei n, const GLuint *ids);
421 GLboolean (GLAPIENTRY *qglIsQueryARB)(GLuint qid);
422 void (GLAPIENTRY *qglBeginQueryARB)(GLenum target, GLuint qid);
423 void (GLAPIENTRY *qglEndQueryARB)(GLenum target);
424 void (GLAPIENTRY *qglGetQueryivARB)(GLenum target, GLenum pname, GLint *params);
425 void (GLAPIENTRY *qglGetQueryObjectivARB)(GLuint qid, GLenum pname, GLint *params);
426 void (GLAPIENTRY *qglGetQueryObjectuivARB)(GLuint qid, GLenum pname, GLuint *params);
427
428 #if _MSC_VER >= 1400
429 #define sscanf sscanf_s
430 #endif
431
GL_CheckExtension(const char * minglver_or_ext,const dllfunction_t * funcs,const char * disableparm,int silent)432 int GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent)
433 {
434 int failed = false;
435 const dllfunction_t *func;
436 struct { int major, minor; } min_version, curr_version;
437 int ext;
438
439 if(sscanf(minglver_or_ext, "%d.%d", &min_version.major, &min_version.minor) == 2)
440 ext = 0; // opengl version
441 else if(minglver_or_ext[0] != toupper(minglver_or_ext[0]))
442 ext = -1; // pseudo name
443 else
444 ext = 1; // extension name
445
446 if (ext)
447 Con_DPrintf("checking for %s... ", minglver_or_ext);
448 else
449 Con_DPrintf("checking for OpenGL %s core features... ", minglver_or_ext);
450
451 for (func = funcs;func && func->name;func++)
452 *func->funcvariable = NULL;
453
454 if (disableparm && (COM_CheckParm(disableparm) || COM_CheckParm("-safe")))
455 {
456 Con_DPrint("disabled by commandline\n");
457 return false;
458 }
459
460 if (ext == 1) // opengl extension
461 {
462 if (!strstr(gl_extensions ? gl_extensions : "", minglver_or_ext) && !strstr(gl_platformextensions ? gl_platformextensions : "", minglver_or_ext))
463 {
464 Con_DPrint("not detected\n");
465 return false;
466 }
467 }
468
469 if(ext == 0) // opengl version
470 {
471 sscanf(gl_version, "%d.%d", &curr_version.major, &curr_version.minor);
472
473 if (curr_version.major < min_version.major || (curr_version.major == min_version.major && curr_version.minor < min_version.minor))
474 {
475 Con_DPrintf("not detected (OpenGL %d.%d loaded)\n", curr_version.major, curr_version.minor);
476 return false;
477 }
478 }
479
480 for (func = funcs;func && func->name != NULL;func++)
481 {
482 // Con_DPrintf("\n %s... ", func->name);
483
484 // functions are cleared before all the extensions are evaluated
485 if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
486 {
487 if (!silent)
488 {
489 if (ext)
490 Con_DPrintf("%s is missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
491 else
492 Con_DPrintf("OpenGL %s core features are missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
493 }
494 failed = true;
495 }
496 }
497 // delay the return so it prints all missing functions
498 if (failed)
499 return false;
500 Con_DPrint("enabled\n");
501 return true;
502 }
503
504 static dllfunction_t opengl110funcs[] =
505 {
506 {"glClearColor", (void **) &qglClearColor},
507 {"glClear", (void **) &qglClear},
508 {"glAlphaFunc", (void **) &qglAlphaFunc},
509 {"glBlendFunc", (void **) &qglBlendFunc},
510 {"glCullFace", (void **) &qglCullFace},
511 {"glDrawBuffer", (void **) &qglDrawBuffer},
512 {"glReadBuffer", (void **) &qglReadBuffer},
513 {"glEnable", (void **) &qglEnable},
514 {"glDisable", (void **) &qglDisable},
515 {"glIsEnabled", (void **) &qglIsEnabled},
516 {"glEnableClientState", (void **) &qglEnableClientState},
517 {"glDisableClientState", (void **) &qglDisableClientState},
518 {"glGetBooleanv", (void **) &qglGetBooleanv},
519 {"glGetDoublev", (void **) &qglGetDoublev},
520 {"glGetFloatv", (void **) &qglGetFloatv},
521 {"glGetIntegerv", (void **) &qglGetIntegerv},
522 {"glGetError", (void **) &qglGetError},
523 {"glGetString", (void **) &qglGetString},
524 {"glFinish", (void **) &qglFinish},
525 {"glFlush", (void **) &qglFlush},
526 {"glClearDepth", (void **) &qglClearDepth},
527 {"glDepthFunc", (void **) &qglDepthFunc},
528 {"glDepthMask", (void **) &qglDepthMask},
529 {"glDepthRange", (void **) &qglDepthRange},
530 {"glDrawElements", (void **) &qglDrawElements},
531 {"glColorMask", (void **) &qglColorMask},
532 {"glVertexPointer", (void **) &qglVertexPointer},
533 {"glNormalPointer", (void **) &qglNormalPointer},
534 {"glColorPointer", (void **) &qglColorPointer},
535 {"glTexCoordPointer", (void **) &qglTexCoordPointer},
536 {"glArrayElement", (void **) &qglArrayElement},
537 {"glColor4f", (void **) &qglColor4f},
538 {"glTexCoord1f", (void **) &qglTexCoord1f},
539 {"glTexCoord2f", (void **) &qglTexCoord2f},
540 {"glTexCoord3f", (void **) &qglTexCoord3f},
541 {"glTexCoord4f", (void **) &qglTexCoord4f},
542 {"glVertex2f", (void **) &qglVertex2f},
543 {"glVertex3f", (void **) &qglVertex3f},
544 {"glBegin", (void **) &qglBegin},
545 {"glEnd", (void **) &qglEnd},
546 //[515]: added on 29.07.2005
547 {"glLineWidth", (void**) &qglLineWidth},
548 {"glPointSize", (void**) &qglPointSize},
549 //
550 {"glMatrixMode", (void **) &qglMatrixMode},
551 {"glOrtho", (void **) &qglOrtho},
552 {"glFrustum", (void **) &qglFrustum},
553 {"glViewport", (void **) &qglViewport},
554 {"glPushMatrix", (void **) &qglPushMatrix},
555 {"glPopMatrix", (void **) &qglPopMatrix},
556 {"glLoadIdentity", (void **) &qglLoadIdentity},
557 {"glLoadMatrixd", (void **) &qglLoadMatrixd},
558 {"glLoadMatrixf", (void **) &qglLoadMatrixf},
559 {"glMultMatrixd", (void **) &qglMultMatrixd},
560 {"glMultMatrixf", (void **) &qglMultMatrixf},
561 {"glRotated", (void **) &qglRotated},
562 {"glRotatef", (void **) &qglRotatef},
563 {"glScaled", (void **) &qglScaled},
564 {"glScalef", (void **) &qglScalef},
565 {"glTranslated", (void **) &qglTranslated},
566 {"glTranslatef", (void **) &qglTranslatef},
567 {"glReadPixels", (void **) &qglReadPixels},
568 {"glStencilFunc", (void **) &qglStencilFunc},
569 {"glStencilMask", (void **) &qglStencilMask},
570 {"glStencilOp", (void **) &qglStencilOp},
571 {"glClearStencil", (void **) &qglClearStencil},
572 {"glTexEnvf", (void **) &qglTexEnvf},
573 {"glTexEnvfv", (void **) &qglTexEnvfv},
574 {"glTexEnvi", (void **) &qglTexEnvi},
575 {"glTexParameterf", (void **) &qglTexParameterf},
576 {"glTexParameterfv", (void **) &qglTexParameterfv},
577 {"glTexParameteri", (void **) &qglTexParameteri},
578 {"glHint", (void **) &qglHint},
579 {"glPixelStoref", (void **) &qglPixelStoref},
580 {"glPixelStorei", (void **) &qglPixelStorei},
581 {"glGenTextures", (void **) &qglGenTextures},
582 {"glDeleteTextures", (void **) &qglDeleteTextures},
583 {"glBindTexture", (void **) &qglBindTexture},
584 // {"glPrioritizeTextures", (void **) &qglPrioritizeTextures},
585 // {"glAreTexturesResident", (void **) &qglAreTexturesResident},
586 {"glIsTexture", (void **) &qglIsTexture},
587 {"glTexImage1D", (void **) &qglTexImage1D},
588 {"glTexImage2D", (void **) &qglTexImage2D},
589 {"glTexSubImage1D", (void **) &qglTexSubImage1D},
590 {"glTexSubImage2D", (void **) &qglTexSubImage2D},
591 {"glCopyTexImage1D", (void **) &qglCopyTexImage1D},
592 {"glCopyTexImage2D", (void **) &qglCopyTexImage2D},
593 {"glCopyTexSubImage1D", (void **) &qglCopyTexSubImage1D},
594 {"glCopyTexSubImage2D", (void **) &qglCopyTexSubImage2D},
595 {"glScissor", (void **) &qglScissor},
596 {"glPolygonOffset", (void **) &qglPolygonOffset},
597 {"glPolygonMode", (void **) &qglPolygonMode},
598 {"glPolygonStipple", (void **) &qglPolygonStipple},
599 {"glClipPlane", (void **) &qglClipPlane},
600 {"glGetClipPlane", (void **) &qglGetClipPlane},
601 {NULL, NULL}
602 };
603
604 static dllfunction_t drawrangeelementsfuncs[] =
605 {
606 {"glDrawRangeElements", (void **) &qglDrawRangeElements},
607 {NULL, NULL}
608 };
609
610 static dllfunction_t drawrangeelementsextfuncs[] =
611 {
612 {"glDrawRangeElementsEXT", (void **) &qglDrawRangeElementsEXT},
613 {NULL, NULL}
614 };
615
616 static dllfunction_t multitexturefuncs[] =
617 {
618 {"glMultiTexCoord1fARB", (void **) &qglMultiTexCoord1f},
619 {"glMultiTexCoord2fARB", (void **) &qglMultiTexCoord2f},
620 {"glMultiTexCoord3fARB", (void **) &qglMultiTexCoord3f},
621 {"glMultiTexCoord4fARB", (void **) &qglMultiTexCoord4f},
622 {"glActiveTextureARB", (void **) &qglActiveTexture},
623 {"glClientActiveTextureARB", (void **) &qglClientActiveTexture},
624 {NULL, NULL}
625 };
626
627 static dllfunction_t compiledvertexarrayfuncs[] =
628 {
629 {"glLockArraysEXT", (void **) &qglLockArraysEXT},
630 {"glUnlockArraysEXT", (void **) &qglUnlockArraysEXT},
631 {NULL, NULL}
632 };
633
634 static dllfunction_t texture3dextfuncs[] =
635 {
636 {"glTexImage3DEXT", (void **) &qglTexImage3D},
637 {"glTexSubImage3DEXT", (void **) &qglTexSubImage3D},
638 {"glCopyTexSubImage3DEXT", (void **) &qglCopyTexSubImage3D},
639 {NULL, NULL}
640 };
641
642 static dllfunction_t atiseparatestencilfuncs[] =
643 {
644 {"glStencilOpSeparateATI", (void **) &qglStencilOpSeparate},
645 {"glStencilFuncSeparateATI", (void **) &qglStencilFuncSeparate},
646 {NULL, NULL}
647 };
648
649 static dllfunction_t gl2separatestencilfuncs[] =
650 {
651 {"glStencilOpSeparate", (void **) &qglStencilOpSeparate},
652 {"glStencilFuncSeparate", (void **) &qglStencilFuncSeparate},
653 {NULL, NULL}
654 };
655
656 static dllfunction_t stenciltwosidefuncs[] =
657 {
658 {"glActiveStencilFaceEXT", (void **) &qglActiveStencilFaceEXT},
659 {NULL, NULL}
660 };
661
662 static dllfunction_t blendequationfuncs[] =
663 {
664 {"glBlendEquationEXT", (void **) &qglBlendEquationEXT},
665 {NULL, NULL}
666 };
667
668 static dllfunction_t shaderobjectsfuncs[] =
669 {
670 {"glDeleteObjectARB", (void **) &qglDeleteObjectARB},
671 {"glGetHandleARB", (void **) &qglGetHandleARB},
672 {"glDetachObjectARB", (void **) &qglDetachObjectARB},
673 {"glCreateShaderObjectARB", (void **) &qglCreateShaderObjectARB},
674 {"glShaderSourceARB", (void **) &qglShaderSourceARB},
675 {"glCompileShaderARB", (void **) &qglCompileShaderARB},
676 {"glCreateProgramObjectARB", (void **) &qglCreateProgramObjectARB},
677 {"glAttachObjectARB", (void **) &qglAttachObjectARB},
678 {"glLinkProgramARB", (void **) &qglLinkProgramARB},
679 {"glUseProgramObjectARB", (void **) &qglUseProgramObjectARB},
680 {"glValidateProgramARB", (void **) &qglValidateProgramARB},
681 {"glUniform1fARB", (void **) &qglUniform1fARB},
682 {"glUniform2fARB", (void **) &qglUniform2fARB},
683 {"glUniform3fARB", (void **) &qglUniform3fARB},
684 {"glUniform4fARB", (void **) &qglUniform4fARB},
685 {"glUniform1iARB", (void **) &qglUniform1iARB},
686 {"glUniform2iARB", (void **) &qglUniform2iARB},
687 {"glUniform3iARB", (void **) &qglUniform3iARB},
688 {"glUniform4iARB", (void **) &qglUniform4iARB},
689 {"glUniform1fvARB", (void **) &qglUniform1fvARB},
690 {"glUniform2fvARB", (void **) &qglUniform2fvARB},
691 {"glUniform3fvARB", (void **) &qglUniform3fvARB},
692 {"glUniform4fvARB", (void **) &qglUniform4fvARB},
693 {"glUniform1ivARB", (void **) &qglUniform1ivARB},
694 {"glUniform2ivARB", (void **) &qglUniform2ivARB},
695 {"glUniform3ivARB", (void **) &qglUniform3ivARB},
696 {"glUniform4ivARB", (void **) &qglUniform4ivARB},
697 {"glUniformMatrix2fvARB", (void **) &qglUniformMatrix2fvARB},
698 {"glUniformMatrix3fvARB", (void **) &qglUniformMatrix3fvARB},
699 {"glUniformMatrix4fvARB", (void **) &qglUniformMatrix4fvARB},
700 {"glGetObjectParameterfvARB", (void **) &qglGetObjectParameterfvARB},
701 {"glGetObjectParameterivARB", (void **) &qglGetObjectParameterivARB},
702 {"glGetInfoLogARB", (void **) &qglGetInfoLogARB},
703 {"glGetAttachedObjectsARB", (void **) &qglGetAttachedObjectsARB},
704 {"glGetUniformLocationARB", (void **) &qglGetUniformLocationARB},
705 {"glGetActiveUniformARB", (void **) &qglGetActiveUniformARB},
706 {"glGetUniformfvARB", (void **) &qglGetUniformfvARB},
707 {"glGetUniformivARB", (void **) &qglGetUniformivARB},
708 {"glGetShaderSourceARB", (void **) &qglGetShaderSourceARB},
709 {NULL, NULL}
710 };
711
712 static dllfunction_t vertexshaderfuncs[] =
713 {
714 // {"glVertexAttrib1fARB", (void **) &qglVertexAttrib1fARB},
715 // {"glVertexAttrib1sARB", (void **) &qglVertexAttrib1sARB},
716 // {"glVertexAttrib1dARB", (void **) &qglVertexAttrib1dARB},
717 // {"glVertexAttrib2fARB", (void **) &qglVertexAttrib2fARB},
718 // {"glVertexAttrib2sARB", (void **) &qglVertexAttrib2sARB},
719 // {"glVertexAttrib2dARB", (void **) &qglVertexAttrib2dARB},
720 // {"glVertexAttrib3fARB", (void **) &qglVertexAttrib3fARB},
721 // {"glVertexAttrib3sARB", (void **) &qglVertexAttrib3sARB},
722 // {"glVertexAttrib3dARB", (void **) &qglVertexAttrib3dARB},
723 // {"glVertexAttrib4fARB", (void **) &qglVertexAttrib4fARB},
724 // {"glVertexAttrib4sARB", (void **) &qglVertexAttrib4sARB},
725 // {"glVertexAttrib4dARB", (void **) &qglVertexAttrib4dARB},
726 // {"glVertexAttrib4NubARB", (void **) &qglVertexAttrib4NubARB},
727 // {"glVertexAttrib1fvARB", (void **) &qglVertexAttrib1fvARB},
728 // {"glVertexAttrib1svARB", (void **) &qglVertexAttrib1svARB},
729 // {"glVertexAttrib1dvARB", (void **) &qglVertexAttrib1dvARB},
730 // {"glVertexAttrib2fvARB", (void **) &qglVertexAttrib1fvARB},
731 // {"glVertexAttrib2svARB", (void **) &qglVertexAttrib1svARB},
732 // {"glVertexAttrib2dvARB", (void **) &qglVertexAttrib1dvARB},
733 // {"glVertexAttrib3fvARB", (void **) &qglVertexAttrib1fvARB},
734 // {"glVertexAttrib3svARB", (void **) &qglVertexAttrib1svARB},
735 // {"glVertexAttrib3dvARB", (void **) &qglVertexAttrib1dvARB},
736 // {"glVertexAttrib4fvARB", (void **) &qglVertexAttrib1fvARB},
737 // {"glVertexAttrib4svARB", (void **) &qglVertexAttrib1svARB},
738 // {"glVertexAttrib4dvARB", (void **) &qglVertexAttrib1dvARB},
739 // {"glVertexAttrib4ivARB", (void **) &qglVertexAttrib1ivARB},
740 // {"glVertexAttrib4bvARB", (void **) &qglVertexAttrib1bvARB},
741 // {"glVertexAttrib4ubvARB", (void **) &qglVertexAttrib1ubvARB},
742 // {"glVertexAttrib4usvARB", (void **) &qglVertexAttrib1usvARB},
743 // {"glVertexAttrib4uivARB", (void **) &qglVertexAttrib1uivARB},
744 // {"glVertexAttrib4NbvARB", (void **) &qglVertexAttrib1NbvARB},
745 // {"glVertexAttrib4NsvARB", (void **) &qglVertexAttrib1NsvARB},
746 // {"glVertexAttrib4NivARB", (void **) &qglVertexAttrib1NivARB},
747 // {"glVertexAttrib4NubvARB", (void **) &qglVertexAttrib1NubvARB},
748 // {"glVertexAttrib4NusvARB", (void **) &qglVertexAttrib1NusvARB},
749 // {"glVertexAttrib4NuivARB", (void **) &qglVertexAttrib1NuivARB},
750 {"glVertexAttribPointerARB", (void **) &qglVertexAttribPointerARB},
751 {"glEnableVertexAttribArrayARB", (void **) &qglEnableVertexAttribArrayARB},
752 {"glDisableVertexAttribArrayARB", (void **) &qglDisableVertexAttribArrayARB},
753 {"glBindAttribLocationARB", (void **) &qglBindAttribLocationARB},
754 {"glGetActiveAttribARB", (void **) &qglGetActiveAttribARB},
755 {"glGetAttribLocationARB", (void **) &qglGetAttribLocationARB},
756 // {"glGetVertexAttribdvARB", (void **) &qglGetVertexAttribdvARB},
757 // {"glGetVertexAttribfvARB", (void **) &qglGetVertexAttribfvARB},
758 // {"glGetVertexAttribivARB", (void **) &qglGetVertexAttribivARB},
759 // {"glGetVertexAttribPointervARB", (void **) &qglGetVertexAttribPointervARB},
760 {NULL, NULL}
761 };
762
763 static dllfunction_t vbofuncs[] =
764 {
765 {"glBindBufferARB" , (void **) &qglBindBufferARB},
766 {"glDeleteBuffersARB" , (void **) &qglDeleteBuffersARB},
767 {"glGenBuffersARB" , (void **) &qglGenBuffersARB},
768 {"glIsBufferARB" , (void **) &qglIsBufferARB},
769 {"glMapBufferARB" , (void **) &qglMapBufferARB},
770 {"glUnmapBufferARB" , (void **) &qglUnmapBufferARB},
771 {"glBufferDataARB" , (void **) &qglBufferDataARB},
772 {"glBufferSubDataARB" , (void **) &qglBufferSubDataARB},
773 {NULL, NULL}
774 };
775
776 static dllfunction_t fbofuncs[] =
777 {
778 {"glIsRenderbufferEXT" , (void **) &qglIsRenderbufferEXT},
779 {"glBindRenderbufferEXT" , (void **) &qglBindRenderbufferEXT},
780 {"glDeleteRenderbuffersEXT" , (void **) &qglDeleteRenderbuffersEXT},
781 {"glGenRenderbuffersEXT" , (void **) &qglGenRenderbuffersEXT},
782 {"glRenderbufferStorageEXT" , (void **) &qglRenderbufferStorageEXT},
783 {"glGetRenderbufferParameterivEXT" , (void **) &qglGetRenderbufferParameterivEXT},
784 {"glIsFramebufferEXT" , (void **) &qglIsFramebufferEXT},
785 {"glBindFramebufferEXT" , (void **) &qglBindFramebufferEXT},
786 {"glDeleteFramebuffersEXT" , (void **) &qglDeleteFramebuffersEXT},
787 {"glGenFramebuffersEXT" , (void **) &qglGenFramebuffersEXT},
788 {"glCheckFramebufferStatusEXT" , (void **) &qglCheckFramebufferStatusEXT},
789 {"glFramebufferTexture1DEXT" , (void **) &qglFramebufferTexture1DEXT},
790 {"glFramebufferTexture2DEXT" , (void **) &qglFramebufferTexture2DEXT},
791 {"glFramebufferTexture3DEXT" , (void **) &qglFramebufferTexture3DEXT},
792 {"glFramebufferRenderbufferEXT" , (void **) &qglFramebufferRenderbufferEXT},
793 {"glGetFramebufferAttachmentParameterivEXT" , (void **) &qglGetFramebufferAttachmentParameterivEXT},
794 {"glGenerateMipmapEXT" , (void **) &qglGenerateMipmapEXT},
795 {NULL, NULL}
796 };
797
798 static dllfunction_t texturecompressionfuncs[] =
799 {
800 {"glCompressedTexImage3DARB", (void **) &qglCompressedTexImage3DARB},
801 {"glCompressedTexImage2DARB", (void **) &qglCompressedTexImage2DARB},
802 {"glCompressedTexImage1DARB", (void **) &qglCompressedTexImage1DARB},
803 {"glCompressedTexSubImage3DARB", (void **) &qglCompressedTexSubImage3DARB},
804 {"glCompressedTexSubImage2DARB", (void **) &qglCompressedTexSubImage2DARB},
805 {"glCompressedTexSubImage1DARB", (void **) &qglCompressedTexSubImage1DARB},
806 {"glGetCompressedTexImageARB", (void **) &qglGetCompressedTexImageARB},
807 {NULL, NULL}
808 };
809
810 static dllfunction_t occlusionqueryfuncs[] =
811 {
812 {"glGenQueriesARB", (void **) &qglGenQueriesARB},
813 {"glDeleteQueriesARB", (void **) &qglDeleteQueriesARB},
814 {"glIsQueryARB", (void **) &qglIsQueryARB},
815 {"glBeginQueryARB", (void **) &qglBeginQueryARB},
816 {"glEndQueryARB", (void **) &qglEndQueryARB},
817 {"glGetQueryivARB", (void **) &qglGetQueryivARB},
818 {"glGetQueryObjectivARB", (void **) &qglGetQueryObjectivARB},
819 {"glGetQueryObjectuivARB", (void **) &qglGetQueryObjectuivARB},
820 {NULL, NULL}
821 };
822
VID_CheckExtensions(void)823 void VID_CheckExtensions(void)
824 {
825 gl_stencil = vid_bitsperpixel.integer == 32;
826
827 // reset all the gl extension variables here
828 // this should match the declarations
829 gl_max_texture_size = 0;
830 gl_max_3d_texture_size = 0;
831 gl_max_cube_map_texture_size = 0;
832 gl_textureunits = 1;
833 gl_combine_extension = false;
834 gl_supportslockarrays = false;
835 gl_texture3d = false;
836 gl_texturecubemap = false;
837 gl_texturerectangle = false;
838 gl_support_arb_texture_non_power_of_two = false;
839 gl_dot3arb = false;
840 gl_depthtexture = false;
841 gl_support_arb_shadow = false;
842 gl_support_clamptoedge = false;
843 gl_support_anisotropy = false;
844 gl_max_anisotropy = 1;
845 gl_support_separatestencil = false;
846 gl_support_stenciltwoside = false;
847 gl_support_ext_blend_minmax = false;
848 gl_support_ext_blend_subtract = false;
849 gl_support_shader_objects = false;
850 gl_support_shading_language_100 = false;
851 gl_support_vertex_shader = false;
852 gl_support_fragment_shader = false;
853 gl_support_arb_vertex_buffer_object = false;
854 gl_support_ext_framebuffer_object = false;
855 gl_support_texture_compression = false;
856 gl_support_arb_occlusion_query = false;
857 gl_support_amd_texture_texture4 = false;
858 gl_support_arb_texture_gather = false;
859
860 if (!GL_CheckExtension("1.1", opengl110funcs, NULL, false))
861 Sys_Error("OpenGL 1.1.0 functions not found");
862
863 CHECKGLERROR
864 qglGetIntegerv(GL_MAX_TEXTURE_SIZE, &gl_max_texture_size);
865
866 Con_DPrint("Checking OpenGL extensions...\n");
867
868 // COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
869 if (!GL_CheckExtension("1.2", drawrangeelementsfuncs, "-nodrawrangeelements", true))
870 GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
871
872 // COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
873 if (GL_CheckExtension("GL_ARB_multitexture", multitexturefuncs, "-nomtex", false))
874 {
875 qglGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &gl_textureunits);
876 // COMMANDLINEOPTION: GL: -nocombine disables GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (required for bumpmapping and faster map rendering)
877 gl_combine_extension = GL_CheckExtension("GL_ARB_texture_env_combine", NULL, "-nocombine", false) || GL_CheckExtension("GL_EXT_texture_env_combine", NULL, "-nocombine", false);
878 // COMMANDLINEOPTION: GL: -nodot3 disables GL_ARB_texture_env_dot3 (required for bumpmapping)
879 if (gl_combine_extension)
880 gl_dot3arb = GL_CheckExtension("GL_ARB_texture_env_dot3", NULL, "-nodot3", false);
881 }
882
883 // COMMANDLINEOPTION: GL: -notexture3d disables GL_EXT_texture3D (required for spherical lights, otherwise they render as a column)
884 if ((gl_texture3d = GL_CheckExtension("GL_EXT_texture3D", texture3dextfuncs, "-notexture3d", false)))
885 {
886 qglGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &gl_max_3d_texture_size);
887 if (gl_max_3d_texture_size < 32)
888 {
889 gl_texture3d = false;
890 Con_Printf("GL_EXT_texture3D reported bogus GL_MAX_3D_TEXTURE_SIZE, disabled\n");
891 }
892 }
893 // COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
894 if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
895 qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
896 // COMMANDLINEOPTION: GL: -norectangle disables GL_ARB_texture_rectangle (required for bumpmapping)
897 if ((gl_texturerectangle = GL_CheckExtension("GL_ARB_texture_rectangle", NULL, "-norectangle", false)))
898 qglGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, &gl_max_rectangle_texture_size);
899 // COMMANDLINEOPTION: GL: -nodepthtexture disables use of GL_ARB_depth_texture (required for shadowmapping)
900 gl_depthtexture = GL_CheckExtension("GL_ARB_depth_texture", NULL, "-nodepthtexture", false);
901 // COMMANDLINEOPTION: GL: -noshadow disables use of GL_ARB_shadow (required for hardware shadowmap filtering)
902 gl_support_arb_shadow = GL_CheckExtension("GL_ARB_shadow", NULL, "-noshadow", false);
903
904 // COMMANDLINEOPTION: GL: -notexturecompression disables GL_ARB_texture_compression (which saves video memory if it is supported, but can also degrade image quality, see gl_texturecompression cvar documentation for more information)
905 gl_support_texture_compression = GL_CheckExtension("GL_ARB_texture_compression", texturecompressionfuncs, "-notexturecompression", false);
906 // COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
907 gl_supportslockarrays = GL_CheckExtension("GL_EXT_compiled_vertex_array", compiledvertexarrayfuncs, "-nocva", false);
908 // COMMANDLINEOPTION: GL: -noedgeclamp disables GL_EXT_texture_edge_clamp or GL_SGIS_texture_edge_clamp (recommended, some cards do not support the other texture clamp method)
909 gl_support_clamptoedge = GL_CheckExtension("GL_EXT_texture_edge_clamp", NULL, "-noedgeclamp", false) || GL_CheckExtension("GL_SGIS_texture_edge_clamp", NULL, "-noedgeclamp", false);
910
911 // COMMANDLINEOPTION: GL: -noanisotropy disables GL_EXT_texture_filter_anisotropic (allows higher quality texturing)
912 if ((gl_support_anisotropy = GL_CheckExtension("GL_EXT_texture_filter_anisotropic", NULL, "-noanisotropy", false)))
913 qglGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &gl_max_anisotropy);
914
915 gl_support_ext_blend_minmax = GL_CheckExtension("GL_EXT_blend_minmax", blendequationfuncs, "-noblendminmax", false);
916 gl_support_ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
917
918 // COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
919 if (!(gl_support_separatestencil = (GL_CheckExtension("2.0", gl2separatestencilfuncs, "-noseparatestencil", true))))
920 gl_support_separatestencil = GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
921 // COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
922 gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
923
924 // COMMANDLINEOPTION: GL: -novbo disables GL_ARB_vertex_buffer_object (which accelerates rendering)
925 gl_support_arb_vertex_buffer_object = GL_CheckExtension("GL_ARB_vertex_buffer_object", vbofuncs, "-novbo", false);
926
927 // COMMANDLINEOPTION: GL: -nofbo disables GL_EXT_framebuffer_object (which accelerates rendering)
928 gl_support_ext_framebuffer_object = GL_CheckExtension("GL_EXT_framebuffer_object", fbofuncs, "-nofbo", false);
929
930 // we don't care if it's an extension or not, they are identical functions, so keep it simple in the rendering code
931 if (qglDrawRangeElements == NULL)
932 qglDrawRangeElements = qglDrawRangeElementsEXT;
933
934 // COMMANDLINEOPTION: GL: -noshaderobjects disables GL_ARB_shader_objects (required for vertex shader and fragment shader)
935 // COMMANDLINEOPTION: GL: -noshadinglanguage100 disables GL_ARB_shading_language_100 (required for vertex shader and fragment shader)
936 // COMMANDLINEOPTION: GL: -novertexshader disables GL_ARB_vertex_shader (allows vertex shader effects)
937 // COMMANDLINEOPTION: GL: -nofragmentshader disables GL_ARB_fragment_shader (allows pixel shader effects, can improve per pixel lighting performance and capabilities)
938 if ((gl_support_shader_objects = GL_CheckExtension("GL_ARB_shader_objects", shaderobjectsfuncs, "-noshaderobjects", false)))
939 if ((gl_support_shading_language_100 = GL_CheckExtension("GL_ARB_shading_language_100", NULL, "-noshadinglanguage100", false)))
940 if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
941 gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
942 CHECKGLERROR
943 #ifndef __APPLE__
944 // LordHavoc: this is blocked on Mac OS X because the drivers claim support but often can't accelerate it or crash when used.
945 // COMMANDLINEOPTION: GL: -notexturenonpoweroftwo disables GL_ARB_texture_non_power_of_two (which saves video memory if it is supported, but crashes on some buggy drivers)
946
947 {
948 // blacklist this extension on Radeon X1600-X1950 hardware (they support it only with certain filtering/repeat modes)
949 int val = 0;
950 if(gl_support_vertex_shader)
951 qglGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &val);
952 gl_support_arb_texture_non_power_of_two = val > 0 && GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
953 }
954 #endif
955
956 // COMMANDLINEOPTION: GL: -noocclusionquery disables GL_ARB_occlusion_query (which allows coronas to fade according to visibility, and potentially used for rendering optimizations)
957 gl_support_arb_occlusion_query = GL_CheckExtension("GL_ARB_occlusion_query", occlusionqueryfuncs, "-noocclusionquery", false);
958
959 // COMMANDLINEOPTION: GL: -notexture4 disables GL_AMD_texture_texture4 (which provides fetch4 sampling)
960 gl_support_amd_texture_texture4 = GL_CheckExtension("GL_AMD_texture_texture4", NULL, "-notexture4", false);
961 // COMMANDLINEOPTION: GL: -notexturegather disables GL_ARB_texture_gather (which provides fetch4 sampling)
962 gl_support_arb_texture_gather = GL_CheckExtension("GL_ARB_texture_gather", NULL, "-notexturegather", false);
963 }
964
Force_CenterView_f(void)965 void Force_CenterView_f (void)
966 {
967 cl.viewangles[PITCH] = 0;
968 }
969
970 static int gamma_forcenextframe = false;
971 static float cachegamma, cachebrightness, cachecontrast, cacheblack[3], cachegrey[3], cachewhite[3], cachecontrastboost;
972 static int cachecolorenable, cachehwgamma;
973
974 unsigned int vid_gammatables_serial = 0; // so other subsystems can poll if gamma parameters have changed
975 qboolean vid_gammatables_trivial = true;
VID_BuildGammaTables(unsigned short * ramps,int rampsize)976 void VID_BuildGammaTables(unsigned short *ramps, int rampsize)
977 {
978 if (cachecolorenable)
979 {
980 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[0]), cachewhite[0], cacheblack[0], cachecontrastboost, ramps, rampsize);
981 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[1]), cachewhite[1], cacheblack[1], cachecontrastboost, ramps + rampsize, rampsize);
982 BuildGammaTable16(1.0f, invpow(0.5, 1 - cachegrey[2]), cachewhite[2], cacheblack[2], cachecontrastboost, ramps + rampsize*2, rampsize);
983 }
984 else
985 {
986 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps, rampsize);
987 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize, rampsize);
988 BuildGammaTable16(1.0f, cachegamma, cachecontrast, cachebrightness, cachecontrastboost, ramps + rampsize*2, rampsize);
989 }
990
991 // LordHavoc: this code came from Ben Winslow and Zinx Verituse, I have
992 // immensely butchered it to work with variable framerates and fit in with
993 // the rest of darkplaces.
994 if (v_psycho.integer)
995 {
996 int x, y;
997 float t;
998 static float n[3], nd[3], nt[3];
999 static int init = true;
1000 unsigned short *ramp;
1001 gamma_forcenextframe = true;
1002 if (init)
1003 {
1004 init = false;
1005 for (x = 0;x < 3;x++)
1006 {
1007 n[x] = lhrandom(0, 1);
1008 nd[x] = (rand()&1)?-0.25:0.25;
1009 nt[x] = lhrandom(1, 8.2);
1010 }
1011 }
1012
1013 for (x = 0;x < 3;x++)
1014 {
1015 nt[x] -= cl.realframetime;
1016 if (nt[x] < 0)
1017 {
1018 nd[x] = -nd[x];
1019 nt[x] += lhrandom(1, 8.2);
1020 }
1021 n[x] += nd[x] * cl.realframetime;
1022 n[x] -= floor(n[x]);
1023 }
1024
1025 for (x = 0, ramp = ramps;x < 3;x++)
1026 for (y = 0, t = n[x] - 0.75f;y < rampsize;y++, t += 0.75f * (2.0f / rampsize))
1027 *ramp++ = (unsigned short)(cos(t*(M_PI*2.0)) * 32767.0f + 32767.0f);
1028 }
1029 }
1030
VID_UpdateGamma(qboolean force,int rampsize)1031 void VID_UpdateGamma(qboolean force, int rampsize)
1032 {
1033 cvar_t *c;
1034 float f;
1035 int wantgamma;
1036 qboolean gamma_changed = false;
1037
1038 // LordHavoc: don't mess with gamma tables if running dedicated
1039 if (cls.state == ca_dedicated)
1040 return;
1041
1042 wantgamma = v_hwgamma.integer;
1043 if(r_glsl.integer && v_glslgamma.integer)
1044 wantgamma = 0;
1045 if(!vid_activewindow)
1046 wantgamma = 0;
1047 #define BOUNDCVAR(cvar, m1, m2) c = &(cvar);f = bound(m1, c->value, m2);if (c->value != f) Cvar_SetValueQuick(c, f);
1048 BOUNDCVAR(v_gamma, 0.1, 5);
1049 BOUNDCVAR(v_contrast, 1, 5);
1050 BOUNDCVAR(v_brightness, 0, 0.8);
1051 //BOUNDCVAR(v_contrastboost, 0.0625, 16);
1052 BOUNDCVAR(v_color_black_r, 0, 0.8);
1053 BOUNDCVAR(v_color_black_g, 0, 0.8);
1054 BOUNDCVAR(v_color_black_b, 0, 0.8);
1055 BOUNDCVAR(v_color_grey_r, 0, 0.95);
1056 BOUNDCVAR(v_color_grey_g, 0, 0.95);
1057 BOUNDCVAR(v_color_grey_b, 0, 0.95);
1058 BOUNDCVAR(v_color_white_r, 1, 5);
1059 BOUNDCVAR(v_color_white_g, 1, 5);
1060 BOUNDCVAR(v_color_white_b, 1, 5);
1061 #undef BOUNDCVAR
1062
1063 // set vid_gammatables_trivial to true if the current settings would generate the identity gamma table
1064 vid_gammatables_trivial = false;
1065 if(v_psycho.integer == 0)
1066 if(v_contrastboost.value == 1)
1067 {
1068 if(v_color_enable.integer)
1069 {
1070 if(v_color_black_r.value == 0)
1071 if(v_color_black_g.value == 0)
1072 if(v_color_black_b.value == 0)
1073 if(fabs(v_color_grey_r.value - 0.5) < 1e-6)
1074 if(fabs(v_color_grey_g.value - 0.5) < 1e-6)
1075 if(fabs(v_color_grey_b.value - 0.5) < 1e-6)
1076 if(v_color_white_r.value == 1)
1077 if(v_color_white_g.value == 1)
1078 if(v_color_white_b.value == 1)
1079 vid_gammatables_trivial = true;
1080 }
1081 else
1082 {
1083 if(v_gamma.value == 1)
1084 if(v_contrast.value == 1)
1085 if(v_brightness.value == 0)
1086 vid_gammatables_trivial = true;
1087 }
1088 }
1089
1090 #define GAMMACHECK(cache, value) if (cache != (value)) gamma_changed = true;cache = (value)
1091 if(v_psycho.integer)
1092 gamma_changed = true;
1093 GAMMACHECK(cachegamma , v_gamma.value);
1094 GAMMACHECK(cachecontrast , v_contrast.value);
1095 GAMMACHECK(cachebrightness , v_brightness.value);
1096 GAMMACHECK(cachecontrastboost, v_contrastboost.value);
1097 GAMMACHECK(cachecolorenable, v_color_enable.integer);
1098 GAMMACHECK(cacheblack[0] , v_color_black_r.value);
1099 GAMMACHECK(cacheblack[1] , v_color_black_g.value);
1100 GAMMACHECK(cacheblack[2] , v_color_black_b.value);
1101 GAMMACHECK(cachegrey[0] , v_color_grey_r.value);
1102 GAMMACHECK(cachegrey[1] , v_color_grey_g.value);
1103 GAMMACHECK(cachegrey[2] , v_color_grey_b.value);
1104 GAMMACHECK(cachewhite[0] , v_color_white_r.value);
1105 GAMMACHECK(cachewhite[1] , v_color_white_g.value);
1106 GAMMACHECK(cachewhite[2] , v_color_white_b.value);
1107
1108 if(gamma_changed)
1109 ++vid_gammatables_serial;
1110
1111 GAMMACHECK(cachehwgamma , wantgamma);
1112 #undef GAMMACHECK
1113
1114 if (!force && !gamma_forcenextframe && !gamma_changed)
1115 return;
1116
1117 gamma_forcenextframe = false;
1118
1119 if (cachehwgamma)
1120 {
1121 if (!vid_usinghwgamma)
1122 {
1123 vid_usinghwgamma = true;
1124 if (vid_gammarampsize != rampsize || !vid_gammaramps)
1125 {
1126 vid_gammarampsize = rampsize;
1127 if (vid_gammaramps)
1128 Z_Free(vid_gammaramps);
1129 vid_gammaramps = (unsigned short *)Z_Malloc(6 * vid_gammarampsize * sizeof(unsigned short));
1130 vid_systemgammaramps = vid_gammaramps + 3 * vid_gammarampsize;
1131 }
1132 VID_GetGamma(vid_systemgammaramps, vid_gammarampsize);
1133 }
1134
1135 VID_BuildGammaTables(vid_gammaramps, vid_gammarampsize);
1136
1137 // set vid_hardwaregammasupported to true if VID_SetGamma succeeds, OR if vid_hwgamma is >= 2 (forced gamma - ignores driver return value)
1138 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_gammaramps, vid_gammarampsize) || cachehwgamma >= 2);
1139 // if custom gamma ramps failed (Windows stupidity), restore to system gamma
1140 if(!vid_hardwaregammasupported.integer)
1141 {
1142 if (vid_usinghwgamma)
1143 {
1144 vid_usinghwgamma = false;
1145 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1146 }
1147 }
1148 }
1149 else
1150 {
1151 if (vid_usinghwgamma)
1152 {
1153 vid_usinghwgamma = false;
1154 VID_SetGamma(vid_systemgammaramps, vid_gammarampsize);
1155 }
1156 }
1157 }
1158
VID_RestoreSystemGamma(void)1159 void VID_RestoreSystemGamma(void)
1160 {
1161 if (vid_usinghwgamma)
1162 {
1163 vid_usinghwgamma = false;
1164 Cvar_SetValueQuick(&vid_hardwaregammasupported, VID_SetGamma(vid_systemgammaramps, vid_gammarampsize));
1165 // force gamma situation to be reexamined next frame
1166 gamma_forcenextframe = true;
1167 }
1168 }
1169
VID_Shared_Init(void)1170 void VID_Shared_Init(void)
1171 {
1172 Cvar_RegisterVariable(&vid_hardwaregammasupported);
1173 Cvar_RegisterVariable(&v_gamma);
1174 Cvar_RegisterVariable(&v_brightness);
1175 Cvar_RegisterVariable(&v_contrastboost);
1176 Cvar_RegisterVariable(&v_contrast);
1177
1178 Cvar_RegisterVariable(&v_color_enable);
1179 Cvar_RegisterVariable(&v_color_black_r);
1180 Cvar_RegisterVariable(&v_color_black_g);
1181 Cvar_RegisterVariable(&v_color_black_b);
1182 Cvar_RegisterVariable(&v_color_grey_r);
1183 Cvar_RegisterVariable(&v_color_grey_g);
1184 Cvar_RegisterVariable(&v_color_grey_b);
1185 Cvar_RegisterVariable(&v_color_white_r);
1186 Cvar_RegisterVariable(&v_color_white_g);
1187 Cvar_RegisterVariable(&v_color_white_b);
1188
1189 Cvar_RegisterVariable(&v_hwgamma);
1190 Cvar_RegisterVariable(&v_glslgamma);
1191
1192 Cvar_RegisterVariable(&v_psycho);
1193
1194 Cvar_RegisterVariable(&vid_fullscreen);
1195 Cvar_RegisterVariable(&vid_width);
1196 Cvar_RegisterVariable(&vid_height);
1197 Cvar_RegisterVariable(&vid_bitsperpixel);
1198 Cvar_RegisterVariable(&vid_samples);
1199 Cvar_RegisterVariable(&vid_refreshrate);
1200 Cvar_RegisterVariable(&vid_userefreshrate);
1201 Cvar_RegisterVariable(&vid_stereobuffer);
1202 Cvar_RegisterVariable(&vid_vsync);
1203 Cvar_RegisterVariable(&vid_mouse);
1204 Cvar_RegisterVariable(&vid_grabkeyboard);
1205 Cvar_RegisterVariable(&vid_stick_mouse);
1206 Cvar_RegisterVariable(&vid_resizable);
1207 Cvar_RegisterVariable(&vid_minwidth);
1208 Cvar_RegisterVariable(&vid_minheight);
1209 Cvar_RegisterVariable(&gl_combine);
1210 Cvar_RegisterVariable(&gl_finish);
1211 Cmd_AddCommand("force_centerview", Force_CenterView_f, "recenters view (stops looking up/down)");
1212 Cmd_AddCommand("vid_restart", VID_Restart_f, "restarts video system (closes and reopens the window, restarts renderer)");
1213 if (gamemode == GAME_GOODVSBAD2)
1214 Cvar_Set("gl_combine", "0");
1215 }
1216
VID_Mode(int fullscreen,int width,int height,int bpp,int refreshrate,int stereobuffer,int samples)1217 int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer, int samples)
1218 {
1219 int requestedWidth = width;
1220 int requestedHeight = height;
1221 cl_ignoremousemoves = 2;
1222 Con_Printf("Initializing Video Mode: %s %dx%dx%dx%dhz%s%s\n", fullscreen ? "fullscreen" : "window", width, height, bpp, refreshrate, stereobuffer ? " stereo" : "", samples > 1 ? va(" (%ix AA)", samples) : "");
1223 if (VID_InitMode(fullscreen, &width, &height, bpp, vid_userefreshrate.integer ? max(1, refreshrate) : 0, stereobuffer, samples))
1224 {
1225 vid.fullscreen = fullscreen != 0;
1226 vid.width = width;
1227 vid.height = height;
1228 vid.bitsperpixel = bpp;
1229 vid.samples = samples;
1230 vid.refreshrate = refreshrate;
1231 vid.stereobuffer = stereobuffer != 0;
1232 vid.userefreshrate = vid_userefreshrate.integer != 0;
1233 Cvar_SetValueQuick(&vid_fullscreen, fullscreen);
1234 Cvar_SetValueQuick(&vid_width, width);
1235 Cvar_SetValueQuick(&vid_height, height);
1236 Cvar_SetValueQuick(&vid_bitsperpixel, bpp);
1237 Cvar_SetValueQuick(&vid_samples, samples);
1238 if(vid_userefreshrate.integer)
1239 Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
1240 Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
1241
1242 if(width != requestedWidth || height != requestedHeight)
1243 Con_Printf("Chose a similar video mode %dx%d instead of the requested mode %dx%d\n", width, height, requestedWidth, requestedHeight);
1244
1245 return true;
1246 }
1247 else
1248 return false;
1249 }
1250
VID_OpenSystems(void)1251 static void VID_OpenSystems(void)
1252 {
1253 R_Modules_Start();
1254 S_Startup();
1255 }
1256
VID_CloseSystems(void)1257 static void VID_CloseSystems(void)
1258 {
1259 S_Shutdown();
1260 R_Modules_Shutdown();
1261 }
1262
1263 qboolean vid_commandlinecheck = true;
1264
VID_Restart_f(void)1265 void VID_Restart_f(void)
1266 {
1267 // don't crash if video hasn't started yet
1268 if (vid_commandlinecheck)
1269 return;
1270
1271 Con_Printf("VID_Restart: changing from %s %dx%dx%dbpp%s%s, to %s %dx%dx%dbpp%s%s.\n",
1272 vid.fullscreen ? "fullscreen" : "window", vid.width, vid.height, vid.bitsperpixel, vid.fullscreen && vid_userefreshrate.integer ? va("x%ihz", vid.refreshrate) : "", vid.samples > 1 ? va(" (%ix AA)", vid.samples) : "",
1273 vid_fullscreen.integer ? "fullscreen" : "window", vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_fullscreen.integer && vid_userefreshrate.integer ? va("x%ihz", vid_refreshrate.integer) : "", vid_samples.integer > 1 ? va(" (%ix AA)", vid_samples.integer) : "");
1274 VID_CloseSystems();
1275 VID_Shutdown();
1276 if (!VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer, vid_samples.integer))
1277 {
1278 Con_Print("Video mode change failed\n");
1279 if (!VID_Mode(vid.fullscreen, vid.width, vid.height, vid.bitsperpixel, vid.refreshrate, vid.stereobuffer, vid.samples))
1280 Sys_Error("Unable to restore to last working video mode");
1281 }
1282 VID_OpenSystems();
1283 }
1284
1285 const char *vidfallbacks[][2] =
1286 {
1287 {"vid_stereobuffer", "0"},
1288 {"vid_samples", "1"},
1289 {"vid_userefreshrate", "0"},
1290 {"vid_width", "640"},
1291 {"vid_height", "480"},
1292 {"vid_bitsperpixel", "16"},
1293 {NULL, NULL}
1294 };
1295
1296 // this is only called once by Host_StartVideo
VID_Start(void)1297 void VID_Start(void)
1298 {
1299 int i, width, height, success;
1300 if (vid_commandlinecheck)
1301 {
1302 // interpret command-line parameters
1303 vid_commandlinecheck = false;
1304 // COMMANDLINEOPTION: Video: -window performs +vid_fullscreen 0
1305 if (COM_CheckParm("-window") || COM_CheckParm("-safe"))
1306 Cvar_SetValueQuick(&vid_fullscreen, false);
1307 // COMMANDLINEOPTION: Video: -fullscreen performs +vid_fullscreen 1
1308 if (COM_CheckParm("-fullscreen"))
1309 Cvar_SetValueQuick(&vid_fullscreen, true);
1310 width = 0;
1311 height = 0;
1312 // COMMANDLINEOPTION: Video: -width <pixels> performs +vid_width <pixels> and also +vid_height <pixels*3/4> if only -width is specified (example: -width 1024 sets 1024x768 mode)
1313 if ((i = COM_CheckParm("-width")) != 0)
1314 width = atoi(com_argv[i+1]);
1315 // COMMANDLINEOPTION: Video: -height <pixels> performs +vid_height <pixels> and also +vid_width <pixels*4/3> if only -height is specified (example: -height 768 sets 1024x768 mode)
1316 if ((i = COM_CheckParm("-height")) != 0)
1317 height = atoi(com_argv[i+1]);
1318 if (width == 0)
1319 width = height * 4 / 3;
1320 if (height == 0)
1321 height = width * 3 / 4;
1322 if (width)
1323 Cvar_SetValueQuick(&vid_width, width);
1324 if (height)
1325 Cvar_SetValueQuick(&vid_height, height);
1326 // COMMANDLINEOPTION: Video: -bpp <bits> performs +vid_bitsperpixel <bits> (example -bpp 32 or -bpp 16)
1327 if ((i = COM_CheckParm("-bpp")) != 0)
1328 Cvar_SetQuick(&vid_bitsperpixel, com_argv[i+1]);
1329 }
1330
1331 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer, vid_samples.integer);
1332 if (!success)
1333 {
1334 Con_Print("Desired video mode fail, trying fallbacks...\n");
1335 for (i = 0;!success && vidfallbacks[i][0] != NULL;i++)
1336 {
1337 Cvar_Set(vidfallbacks[i][0], vidfallbacks[i][1]);
1338 success = VID_Mode(vid_fullscreen.integer, vid_width.integer, vid_height.integer, vid_bitsperpixel.integer, vid_refreshrate.integer, vid_stereobuffer.integer, vid_samples.integer);
1339 }
1340 if (!success)
1341 Sys_Error("Video modes failed");
1342 }
1343 VID_OpenSystems();
1344 }
1345
VID_SortModes_Compare(const void * a_,const void * b_)1346 int VID_SortModes_Compare(const void *a_, const void *b_)
1347 {
1348 vid_mode_t *a = (vid_mode_t *) a_;
1349 vid_mode_t *b = (vid_mode_t *) b_;
1350 if(a->width > b->width)
1351 return +1;
1352 if(a->width < b->width)
1353 return -1;
1354 if(a->height > b->height)
1355 return +1;
1356 if(a->height < b->height)
1357 return -1;
1358 if(a->refreshrate > b->refreshrate)
1359 return +1;
1360 if(a->refreshrate < b->refreshrate)
1361 return -1;
1362 if(a->bpp > b->bpp)
1363 return +1;
1364 if(a->bpp < b->bpp)
1365 return -1;
1366 if(a->pixelheight_num * b->pixelheight_denom > a->pixelheight_denom * b->pixelheight_num)
1367 return +1;
1368 if(a->pixelheight_num * b->pixelheight_denom < a->pixelheight_denom * b->pixelheight_num)
1369 return -1;
1370 return 0;
1371 }
VID_SortModes(vid_mode_t * modes,size_t count,qboolean usebpp,qboolean userefreshrate,qboolean useaspect)1372 size_t VID_SortModes(vid_mode_t *modes, size_t count, qboolean usebpp, qboolean userefreshrate, qboolean useaspect)
1373 {
1374 size_t i;
1375 if(count == 0)
1376 return 0;
1377 // 1. sort them
1378 qsort(modes, count, sizeof(*modes), VID_SortModes_Compare);
1379 // 2. remove duplicates
1380 for(i = 0; i < count; ++i)
1381 {
1382 if(modes[i].width && modes[i].height)
1383 {
1384 if(i == 0)
1385 continue;
1386 if(modes[i].width != modes[i-1].width)
1387 continue;
1388 if(modes[i].height != modes[i-1].height)
1389 continue;
1390 if(userefreshrate)
1391 if(modes[i].refreshrate != modes[i-1].refreshrate)
1392 continue;
1393 if(usebpp)
1394 if(modes[i].bpp != modes[i-1].bpp)
1395 continue;
1396 if(useaspect)
1397 if(modes[i].pixelheight_num * modes[i-1].pixelheight_denom != modes[i].pixelheight_denom * modes[i-1].pixelheight_num)
1398 continue;
1399 }
1400 // a dupe, or a bogus mode!
1401 if(i < count-1)
1402 memmove(&modes[i], &modes[i+1], sizeof(*modes) * (count-1 - i));
1403 --i; // check this index again, as mode i+1 is now here
1404 --count;
1405 }
1406 return count;
1407 }
1408