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request 24-bit depth buffer / z-buffer. patch from Eric Wasylishen.

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git-svn-id: svn+ssh://svn.code.sf.net/p/quakespasm/code/trunk@935 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
sezero 2014-07-15 07:03:56 +00:00
parent 3f3ff65891
commit cca7a948b9
1 changed files with 22 additions and 4 deletions
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26
quakespasm/Quake/gl_vidsdl.c
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@ -260,6 +260,7 @@ static int VID_SetMode (int width, int height, int bpp, qboolean fullscreen)
int temp; int temp;
Uint32 flags = DEFAULT_SDL_FLAGS; Uint32 flags = DEFAULT_SDL_FLAGS;
char caption[50]; char caption[50];
int depthbits;
if (fullscreen) if (fullscreen)
flags |= SDL_FULLSCREEN; flags |= SDL_FULLSCREEN;
@ -280,9 +281,21 @@ static int VID_SetMode (int width, int height, int bpp, qboolean fullscreen)
bpp = SDL_VideoModeOK(width, height, bpp, flags); bpp = SDL_VideoModeOK(width, height, bpp, flags);
//
// z-buffer depth
//
if (bpp == 16)
depthbits = 16;
else depthbits = 24;
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, depthbits);
draw_context = SDL_SetVideoMode(width, height, bpp, flags); draw_context = SDL_SetVideoMode(width, height, bpp, flags);
if (!draw_context) if (!draw_context) { // scale back SDL_GL_DEPTH_SIZE
Sys_Error ("Couldn't set video mode"); SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
draw_context = SDL_SetVideoMode(width, height, bpp, flags);
if (!draw_context)
Sys_Error ("Couldn't set video mode");
}
q_snprintf(caption, sizeof(caption), "QuakeSpasm %1.2f.%d", (float)FITZQUAKE_VERSION, QUAKESPASM_VER_PATCH); q_snprintf(caption, sizeof(caption), "QuakeSpasm %1.2f.%d", (float)FITZQUAKE_VERSION, QUAKESPASM_VER_PATCH);
SDL_WM_SetCaption(caption, caption); SDL_WM_SetCaption(caption, caption);
@ -293,6 +306,10 @@ static int VID_SetMode (int width, int height, int bpp, qboolean fullscreen)
vid.conheight = vid.conwidth * vid.height / vid.width; vid.conheight = vid.conwidth * vid.height / vid.width;
vid.numpages = 2; vid.numpages = 2;
// read the obtained z-buffer depth
if (SDL_GL_GetAttribute(SDL_GL_DEPTH_SIZE, &depthbits) == -1)
depthbits = 0;
modestate = draw_context->flags & SDL_FULLSCREEN ? MS_FULLSCREEN : MS_WINDOWED; modestate = draw_context->flags & SDL_FULLSCREEN ? MS_FULLSCREEN : MS_WINDOWED;
CDAudio_Resume (); CDAudio_Resume ();
@ -302,10 +319,11 @@ static int VID_SetMode (int width, int height, int bpp, qboolean fullscreen)
// fix the leftover Alt from any Alt-Tab or the like that switched us away // fix the leftover Alt from any Alt-Tab or the like that switched us away
ClearAllStates (); ClearAllStates ();
Con_SafePrintf ("Video mode %dx%dx%d initialized\n", Con_SafePrintf ("Video mode %dx%dx%d (%d-bit z-buffer) initialized\n",
draw_context->w, draw_context->w,
draw_context->h, draw_context->h,
draw_context->format->BitsPerPixel); draw_context->format->BitsPerPixel,
depthbits);
vid.recalc_refdef = 1; vid.recalc_refdef = 1;