int gl_support_arb_vertex_buffer_object = false;
//GL_ARB_texture_compression
int gl_support_texture_compression = false;
+//GL_ARB_occlusion_query
+int gl_support_arb_occlusion_query = false;
// LordHavoc: if window is hidden, don't update screen
qboolean vid_hidden = true;
void (GLAPIENTRY *qglCompressedTexSubImage1DARB)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
void (GLAPIENTRY *qglGetCompressedTexImageARB)(GLenum target, GLint lod, void *img);
-int GL_CheckExtension(const char *name, const dllfunction_t *funcs, const char *disableparm, int silent)
+void (GLAPIENTRY *qglGenQueriesARB)(GLsizei n, GLuint *ids);
+void (GLAPIENTRY *qglDeleteQueriesARB)(GLsizei n, const GLuint *ids);
+GLboolean (GLAPIENTRY *qglIsQueryARB)(GLuint qid);
+void (GLAPIENTRY *qglBeginQueryARB)(GLenum target, GLuint qid);
+void (GLAPIENTRY *qglEndQueryARB)(GLenum target);
+void (GLAPIENTRY *qglGetQueryivARB)(GLenum target, GLenum pname, GLint *params);
+void (GLAPIENTRY *qglGetQueryObjectivARB)(GLuint qid, GLenum pname, GLint *params);
+void (GLAPIENTRY *qglGetQueryObjectuivARB)(GLuint qid, GLenum pname, GLuint *params);
+
+#if _MSC_VER >= 1400
+#define sscanf sscanf_s
+#endif
+
+int GL_CheckExtension(const char *minglver_or_ext, const dllfunction_t *funcs, const char *disableparm, int silent)
{
int failed = false;
const dllfunction_t *func;
+ struct { int major, minor; } min_version, curr_version;
+ int ext;
- Con_DPrintf("checking for %s... ", name);
+ ext = !(sscanf(minglver_or_ext, "%d.%d", &min_version.major, &min_version.minor) == 2);
+
+ if (ext)
+ Con_DPrintf("checking for %s... ", minglver_or_ext);
+ else
+ Con_DPrintf("checking for OpenGL %s core features... ", minglver_or_ext);
for (func = funcs;func && func->name;func++)
*func->funcvariable = NULL;
return false;
}
- if ((name[2] == '_' || name[3] == '_') && !strstr(gl_extensions ? gl_extensions : "", name) && !strstr(gl_platformextensions ? gl_platformextensions : "", name))
+ if (ext)
{
- Con_DPrint("not detected\n");
- return false;
+ if (!strstr(gl_extensions ? gl_extensions : "", minglver_or_ext) && !strstr(gl_platformextensions ? gl_platformextensions : "", minglver_or_ext))
+ {
+ Con_DPrint("not detected\n");
+ return false;
+ }
+ }
+ else
+ {
+ sscanf(gl_version, "%d.%d", &curr_version.major, &curr_version.minor);
+
+ if (curr_version.major < min_version.major || (curr_version.major == min_version.major && curr_version.minor < min_version.minor))
+ {
+ Con_DPrintf("not detected (OpenGL %d.%d loaded)\n", curr_version.major, curr_version.minor);
+ return false;
+ }
}
for (func = funcs;func && func->name != NULL;func++)
{
+ // Con_DPrintf("\n %s... ", func->name);
+
// functions are cleared before all the extensions are evaluated
if (!(*func->funcvariable = (void *) GL_GetProcAddress(func->name)))
{
if (!silent)
- Con_DPrintf("OpenGL extension \"%s\" is missing function \"%s\" - broken driver!\n", name, func->name);
+ {
+ if (ext)
+ Con_DPrintf("%s is missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
+ else
+ Con_DPrintf("OpenGL %s core features are missing function \"%s\" - broken driver!\n", minglver_or_ext, func->name);
+ }
failed = true;
}
}
{NULL, NULL}
};
+static dllfunction_t occlusionqueryfuncs[] =
+{
+ {"glGenQueriesARB", (void **) &qglGenQueriesARB},
+ {"glDeleteQueriesARB", (void **) &qglDeleteQueriesARB},
+ {"glIsQueryARB", (void **) &qglIsQueryARB},
+ {"glBeginQueryARB", (void **) &qglBeginQueryARB},
+ {"glEndQueryARB", (void **) &qglEndQueryARB},
+ {"glGetQueryivARB", (void **) &qglGetQueryivARB},
+ {"glGetQueryObjectivARB", (void **) &qglGetQueryObjectivARB},
+ {"glGetQueryObjectuivARB", (void **) &qglGetQueryObjectuivARB},
+ {NULL, NULL}
+};
+
void VID_CheckExtensions(void)
{
gl_stencil = vid_bitsperpixel.integer == 32;
gl_support_fragment_shader = false;
gl_support_arb_vertex_buffer_object = false;
gl_support_texture_compression = false;
+ gl_support_arb_occlusion_query = false;
- if (!GL_CheckExtension("OpenGL 1.1.0", opengl110funcs, NULL, false))
+ if (!GL_CheckExtension("1.1", opengl110funcs, NULL, false))
Sys_Error("OpenGL 1.1.0 functions not found");
CHECKGLERROR
Con_DPrint("Checking OpenGL extensions...\n");
// COMMANDLINEOPTION: GL: -nodrawrangeelements disables GL_EXT_draw_range_elements (renders faster)
- if (!GL_CheckExtension("glDrawRangeElements", drawrangeelementsfuncs, "-nodrawrangeelements", true))
+ if (!GL_CheckExtension("1.2", drawrangeelementsfuncs, "-nodrawrangeelements", true))
GL_CheckExtension("GL_EXT_draw_range_elements", drawrangeelementsextfuncs, "-nodrawrangeelements", false);
// COMMANDLINEOPTION: GL: -nomtex disables GL_ARB_multitexture (required for faster map rendering)
// COMMANDLINEOPTION: GL: -nocubemap disables GL_ARB_texture_cube_map (required for bumpmapping)
if ((gl_texturecubemap = GL_CheckExtension("GL_ARB_texture_cube_map", NULL, "-nocubemap", false)))
qglGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE_ARB, &gl_max_cube_map_texture_size);
-#ifndef __APPLE__
- // TODO: blacklist this extension on Radeon X1600-X1950 hardware (they support it only with certain filtering/repeat modes)
- // LordHavoc: this is blocked on Mac OS X because the drivers claim support but often can't accelerate it or crash when used.
-// 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)
- gl_support_arb_texture_non_power_of_two = GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
-#endif
// 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)
gl_support_texture_compression = GL_CheckExtension("GL_ARB_texture_compression", texturecompressionfuncs, "-notexturecompression", false);
// COMMANDLINEOPTION: GL: -nocva disables GL_EXT_compiled_vertex_array (renders faster)
gl_support_ext_blend_subtract = GL_CheckExtension("GL_EXT_blend_subtract", blendequationfuncs, "-noblendsubtract", false);
// COMMANDLINEOPTION: GL: -noseparatestencil disables use of OpenGL2.0 glStencilOpSeparate and GL_ATI_separate_stencil extensions (which accelerate shadow rendering)
- if (!(gl_support_separatestencil = GL_CheckExtension("glStencilOpSeparate", gl2separatestencilfuncs, "-noseparatestencil", true)))
+ if (!(gl_support_separatestencil = (GL_CheckExtension("2.0", gl2separatestencilfuncs, "-noseparatestencil", true))))
gl_support_separatestencil = GL_CheckExtension("GL_ATI_separate_stencil", atiseparatestencilfuncs, "-noseparatestencil", false);
// COMMANDLINEOPTION: GL: -nostenciltwoside disables GL_EXT_stencil_two_side (which accelerate shadow rendering)
gl_support_stenciltwoside = GL_CheckExtension("GL_EXT_stencil_two_side", stenciltwosidefuncs, "-nostenciltwoside", false);
if ((gl_support_vertex_shader = GL_CheckExtension("GL_ARB_vertex_shader", vertexshaderfuncs, "-novertexshader", false)))
gl_support_fragment_shader = GL_CheckExtension("GL_ARB_fragment_shader", NULL, "-nofragmentshader", false);
CHECKGLERROR
+#ifndef __APPLE__
+ // LordHavoc: this is blocked on Mac OS X because the drivers claim support but often can't accelerate it or crash when used.
+// 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)
+
+ {
+ // blacklist this extension on Radeon X1600-X1950 hardware (they support it only with certain filtering/repeat modes)
+ int val = 0;
+ if(gl_support_vertex_shader)
+ qglGetIntegerv(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, &val);
+ gl_support_arb_texture_non_power_of_two = val > 0 && GL_CheckExtension("GL_ARB_texture_non_power_of_two", NULL, "-notexturenonpoweroftwo", false);
+ }
+#endif
+
+// COMMANDLINEOPTION: GL: -noocclusionquery disables GL_ARB_occlusion_query (which allows coronas to fade according to visibility, and potentially used for rendering optimizations)
+ gl_support_arb_occlusion_query = GL_CheckExtension("GL_ARB_occlusion_query", occlusionqueryfuncs, "-noocclusionquery", false);
}
void Force_CenterView_f (void)
int VID_Mode(int fullscreen, int width, int height, int bpp, int refreshrate, int stereobuffer, int samples)
{
+ int requestedWidth = width;
+ int requestedHeight = height;
cl_ignoremousemoves = 2;
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) : "");
- if (VID_InitMode(fullscreen, width, height, bpp, vid_userefreshrate.integer ? max(1, refreshrate) : 0, stereobuffer, samples))
+ if (VID_InitMode(fullscreen, &width, &height, bpp, vid_userefreshrate.integer ? max(1, refreshrate) : 0, stereobuffer, samples))
{
vid.fullscreen = fullscreen;
vid.width = width;
if(vid_userefreshrate.integer)
Cvar_SetValueQuick(&vid_refreshrate, refreshrate);
Cvar_SetValueQuick(&vid_stereobuffer, stereobuffer);
+
+ if(width != requestedWidth || height != requestedHeight)
+ Con_Printf("Chose a similar video mode %dx%d instead of the requested mode %dx%d\n", width, height, requestedWidth, requestedHeight);
+
return true;
}
else
projects / xonotic / darkplaces.git / blobdiff