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stencil shadows

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git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@2551 e016b1c5-ed68-44aa-a2f7-31cac88cffde
This commit is contained in:
Lee Salzman
2008-09-13 02:24:48 +00:00
parent 7767162227
commit f52bf7e25e
41 changed files with 711 additions and 77 deletions
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source/src/main.cpp
+18 -6
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@@ -83,6 +83,7 @@ VARF(scr_w, 320, 1024, 10000, initwarning("screen resolution"));
VARF(scr_h, 200, 768, 10000, initwarning("screen resolution"));
VARF(colorbits, 0, 0, 32, initwarning("color depth"));
VARF(depthbits, 0, 0, 32, initwarning("depth-buffer precision"));
VARF(stencilbits, 0, 8, 32, initwarning("stencil-buffer precision"));
VARF(fsaa, -1, -1, 16, initwarning("anti-aliasing"));
VARF(vsync, -1, -1, 1, initwarning("vertical sync"));
@@ -118,6 +119,7 @@ void writeinitcfg()
fprintf(f, "scr_h %d\n", scr_h);
fprintf(f, "colorbits %d\n", colorbits);
fprintf(f, "depthbits %d\n", depthbits);
fprintf(f, "stencilbits %d\n", stencilbits);
fprintf(f, "fsaa %d\n", fsaa);
fprintf(f, "vsync %d\n", vsync);
extern int fullscreen, audio, soundchannels;
@@ -243,11 +245,13 @@ void setupscreen(int &usedcolorbits, int &useddepthbits, int &usedfsaa)
#endif
static int configs[] =
{
0x3, /* try everything */
0x2, 0x1, /* try disabling one at a time */
0x7, /* try everything */
0x6, 0x5, 0x3, /* try disabling one at a time */
0x4, 0x2, 0x1, /* try disabling two at a time */
0 /* try disabling everything */
};
int config = 0;
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 0);
if(!depthbits) SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
if(!fsaa)
{
@@ -258,12 +262,19 @@ void setupscreen(int &usedcolorbits, int &useddepthbits, int &usedfsaa)
{
config = configs[i];
if(!depthbits && config&1) continue;
if(fsaa<=0 && config&2) continue;
if(!stencilbits && config&2) continue;
if(fsaa<=0 && config&4) continue;
if(depthbits) SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, config&1 ? depthbits : 16);
if(stencilbits)
{
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, config&2 ? stencilbits : 0);
hasstencil = (config&2)!=0;
}
else hasstencil = false;
if(fsaa>0)
{
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, config&2 ? 1 : 0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, config&2 ? fsaa : 0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, config&4 ? 1 : 0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, config&4 ? fsaa : 0);
}
screen = SDL_SetVideoMode(scr_w, scr_h, hasbpp ? colorbits : 0, SDL_OPENGL|flags);
if(screen) break;
@@ -273,7 +284,8 @@ void setupscreen(int &usedcolorbits, int &useddepthbits, int &usedfsaa)
{
if(!hasbpp) conoutf("%d bit color buffer not supported - disabling", colorbits);
if(depthbits && (config&1)==0) conoutf("%d bit z-buffer not supported - disabling", depthbits);
if(fsaa>0 && (config&2)==0) conoutf("%dx anti-aliasing not supported - disabling", fsaa);
if(stencilbits && (config&2)==0) conoutf("%d bit stencil buffer not supported - disabling", stencilbits);
if(fsaa>0 && (config&4)==0) conoutf("%dx anti-aliasing not supported - disabling", fsaa);
}
scr_w = screen->w;