diff options
| -rw-r--r-- | src/gallium/state_trackers/xlib/fakeglx.c | 254 |
1 files changed, 87 insertions, 167 deletions
diff --git a/src/gallium/state_trackers/xlib/fakeglx.c b/src/gallium/state_trackers/xlib/fakeglx.c index e4ad6c60c3..65e7048188 100644 --- a/src/gallium/state_trackers/xlib/fakeglx.c +++ b/src/gallium/state_trackers/xlib/fakeglx.c @@ -310,39 +310,23 @@ create_glx_visual( Display *dpy, XVisualInfo *visinfo ) GLboolean alphaFlag = default_alpha_bits() > 0; if (is_usable_visual( visinfo )) { - if (_mesa_getenv("MESA_GLX_FORCE_CI")) { - /* Configure this visual as a COLOR INDEX visual. */ - return save_glx_visual( dpy, visinfo, - GL_FALSE, /* rgb */ - GL_FALSE, /* alpha */ - GL_TRUE, /* double */ - GL_FALSE, /* stereo */ - zBits, - STENCIL_BITS, - 0, 0, 0, 0, /* accum bits */ - 0, /* level */ - 0 /* numAux */ - ); - } - else { - /* Configure this visual as RGB, double-buffered, depth-buffered. */ - /* This is surely wrong for some people's needs but what else */ - /* can be done? They should use glXChooseVisual(). */ - return save_glx_visual( dpy, visinfo, - GL_TRUE, /* rgb */ - alphaFlag, /* alpha */ - GL_TRUE, /* double */ - GL_FALSE, /* stereo */ - zBits, - STENCIL_BITS, - accBits, /* r */ - accBits, /* g */ - accBits, /* b */ - accBits, /* a */ - 0, /* level */ - 0 /* numAux */ - ); - } + /* Configure this visual as RGB, double-buffered, depth-buffered. */ + /* This is surely wrong for some people's needs but what else */ + /* can be done? They should use glXChooseVisual(). */ + return save_glx_visual( dpy, visinfo, + GL_TRUE, /* rgb */ + alphaFlag, /* alpha */ + GL_TRUE, /* double */ + GL_FALSE, /* stereo */ + zBits, + STENCIL_BITS, + accBits, /* r */ + accBits, /* g */ + accBits, /* b */ + accBits, /* a */ + 0, /* level */ + 0 /* numAux */ + ); } else { _mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n"); @@ -426,7 +410,7 @@ get_visual( Display *dpy, int scr, unsigned int depth, int xclass ) return NULL; } } - + return vis; } @@ -479,88 +463,48 @@ get_env_visual(Display *dpy, int scr, const char *varname) /* - * Select an X visual which satisfies the RGBA/CI flag and minimum depth. - * Input: dpy, screen - X display and screen number - * rgba - GL_TRUE = RGBA mode, GL_FALSE = CI mode + * Select an X visual which satisfies the RGBA flag and minimum depth. + * Input: dpy, + * screen - X display and screen number * min_depth - minimum visual depth * preferred_class - preferred GLX visual class or DONT_CARE * Return: pointer to an XVisualInfo or NULL. */ static XVisualInfo * -choose_x_visual( Display *dpy, int screen, GLboolean rgba, int min_depth, +choose_x_visual( Display *dpy, int screen, int min_depth, int preferred_class ) { XVisualInfo *vis; int xclass, visclass = 0; int depth; - if (rgba) { - /* First see if the MESA_RGB_VISUAL env var is defined */ - vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" ); - if (vis) { - return vis; - } - /* Otherwise, search for a suitable visual */ - if (preferred_class==DONT_CARE) { - for (xclass=0;xclass<6;xclass++) { - switch (xclass) { - case 0: visclass = TrueColor; break; - case 1: visclass = DirectColor; break; - case 2: visclass = PseudoColor; break; - case 3: visclass = StaticColor; break; - case 4: visclass = GrayScale; break; - case 5: visclass = StaticGray; break; - } - if (min_depth==0) { - /* start with shallowest */ - for (depth=0;depth<=32;depth++) { - if (visclass==TrueColor && depth==8) { - /* Special case: try to get 8-bit PseudoColor before */ - /* 8-bit TrueColor */ - vis = get_visual( dpy, screen, 8, PseudoColor ); - if (vis) { - return vis; - } - } - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - else { - /* start with deepest */ - for (depth=32;depth>=min_depth;depth--) { - if (visclass==TrueColor && depth==8) { - /* Special case: try to get 8-bit PseudoColor before */ - /* 8-bit TrueColor */ - vis = get_visual( dpy, screen, 8, PseudoColor ); - if (vis) { - return vis; - } - } - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - } - } - else { - /* search for a specific visual class */ - switch (preferred_class) { - case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break; - case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break; - case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break; - case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break; - case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break; - case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break; - default: return NULL; + /* First see if the MESA_RGB_VISUAL env var is defined */ + vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" ); + if (vis) { + return vis; + } + /* Otherwise, search for a suitable visual */ + if (preferred_class==DONT_CARE) { + for (xclass=0;xclass<6;xclass++) { + switch (xclass) { + case 0: visclass = TrueColor; break; + case 1: visclass = DirectColor; break; + case 2: visclass = PseudoColor; break; + case 3: visclass = StaticColor; break; + case 4: visclass = GrayScale; break; + case 5: visclass = StaticGray; break; } if (min_depth==0) { /* start with shallowest */ for (depth=0;depth<=32;depth++) { + if (visclass==TrueColor && depth==8) { + /* Special case: try to get 8-bit PseudoColor before */ + /* 8-bit TrueColor */ + vis = get_visual( dpy, screen, 8, PseudoColor ); + if (vis) { + return vis; + } + } vis = get_visual( dpy, screen, depth, visclass ); if (vis) { return vis; @@ -570,6 +514,14 @@ choose_x_visual( Display *dpy, int screen, GLboolean rgba, int min_depth, else { /* start with deepest */ for (depth=32;depth>=min_depth;depth--) { + if (visclass==TrueColor && depth==8) { + /* Special case: try to get 8-bit PseudoColor before */ + /* 8-bit TrueColor */ + vis = get_visual( dpy, screen, 8, PseudoColor ); + if (vis) { + return vis; + } + } vis = get_visual( dpy, screen, depth, visclass ); if (vis) { return vis; @@ -579,56 +531,28 @@ choose_x_visual( Display *dpy, int screen, GLboolean rgba, int min_depth, } } else { - /* First see if the MESA_CI_VISUAL env var is defined */ - vis = get_env_visual( dpy, screen, "MESA_CI_VISUAL" ); - if (vis) { - return vis; - } - /* Otherwise, search for a suitable visual, starting with shallowest */ - if (preferred_class==DONT_CARE) { - for (xclass=0;xclass<4;xclass++) { - switch (xclass) { - case 0: visclass = PseudoColor; break; - case 1: visclass = StaticColor; break; - case 2: visclass = GrayScale; break; - case 3: visclass = StaticGray; break; - } - /* try 8-bit up through 16-bit */ - for (depth=8;depth<=16;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - /* try min_depth up to 8-bit */ - for (depth=min_depth;depth<8;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } + /* search for a specific visual class */ + switch (preferred_class) { + case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break; + case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break; + case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break; + case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break; + case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break; + case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break; + default: return NULL; } - else { - /* search for a specific visual class */ - switch (preferred_class) { - case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break; - case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break; - case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break; - case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break; - case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break; - case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break; - default: return NULL; - } - /* try 8-bit up through 16-bit */ - for (depth=8;depth<=16;depth++) { + if (min_depth==0) { + /* start with shallowest */ + for (depth=0;depth<=32;depth++) { vis = get_visual( dpy, screen, depth, visclass ); if (vis) { return vis; } } - /* try min_depth up to 8-bit */ - for (depth=min_depth;depth<8;depth++) { + } + else { + /* start with deepest */ + for (depth=32;depth>=min_depth;depth--) { vis = get_visual( dpy, screen, depth, visclass ); if (vis) { return vis; @@ -990,6 +914,7 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig ) (void) caveat; + /* * Since we're only simulating the GLX extension this function will never * find any real GL visuals. Instead, all we can do is try to find an RGB @@ -1007,8 +932,7 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig ) if (vis) { /* give the visual some useful GLX attributes */ double_flag = GL_TRUE; - if (vis->depth > 8) - rgb_flag = GL_TRUE; + rgb_flag = GL_TRUE; depth_size = default_depth_bits(); stencil_size = STENCIL_BITS; /* XXX accum??? */ @@ -1016,22 +940,17 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig ) } else if (level==0) { /* normal color planes */ - if (rgb_flag) { - /* Get an RGB visual */ - int min_rgb = min_red + min_green + min_blue; - if (min_rgb>1 && min_rgb<8) { - /* a special case to be sure we can get a monochrome visual */ - min_rgb = 1; - } - vis = choose_x_visual( dpy, screen, rgb_flag, min_rgb, visual_type ); - } - else { - /* Get a color index visual */ - vis = choose_x_visual( dpy, screen, rgb_flag, min_ci, visual_type ); - accumRedSize = accumGreenSize = accumBlueSize = accumAlphaSize = 0; + /* Get an RGB visual */ + int min_rgb = min_red + min_green + min_blue; + if (min_rgb>1 && min_rgb<8) { + /* a special case to be sure we can get a monochrome visual */ + min_rgb = 1; } + vis = choose_x_visual( dpy, screen, min_rgb, visual_type ); } else { + _mesa_warning(NULL, "overlay not supported"); + return NULL; } if (vis) { @@ -1057,11 +976,16 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig ) /* we only support one size of stencil and accum buffers. */ if (stencil_size > 0) stencil_size = STENCIL_BITS; - if (accumRedSize > 0 || accumGreenSize > 0 || accumBlueSize > 0 || + + if (accumRedSize > 0 || + accumGreenSize > 0 || + accumBlueSize > 0 || accumAlphaSize > 0) { + accumRedSize = - accumGreenSize = - accumBlueSize = default_accum_bits(); + accumGreenSize = + accumBlueSize = default_accum_bits(); + accumAlphaSize = alpha_flag ? accumRedSize : 0; } @@ -1085,16 +1009,12 @@ Fake_glXChooseVisual( Display *dpy, int screen, int *list ) xmvis = choose_visual(dpy, screen, list, GL_FALSE); if (xmvis) { -#if 0 - return xmvis->vishandle; -#else /* create a new vishandle - the cached one may be stale */ xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo)); if (xmvis->vishandle) { _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo)); } return xmvis->vishandle; -#endif } else return NULL; |