render/render.c (raw)
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#include <X11/Xlib.h> #include <X11/Xutil.h> #include <glib.h> #include "render.h" #include "gradient.h" #include "font.h" #include "mask.h" #include "color.h" #include "image.h" #include "kernel/openbox.h" #ifdef HAVE_STDLIB_H # include <stdlib.h> #endif int render_depth; Visual *render_visual; Colormap render_colormap; int render_red_offset = 0, render_green_offset = 0, render_blue_offset = 0; int render_red_shift, render_green_shift, render_blue_shift; void render_startup(void) { paint = x_paint; render_depth = DefaultDepth(ob_display, ob_screen); render_visual = DefaultVisual(ob_display, ob_screen); render_colormap = DefaultColormap(ob_display, ob_screen); if (render_depth < 8) { XVisualInfo vinfo_template, *vinfo_return; /* search for a TrueColor Visual... if we can't find one... we will use the default visual for the screen */ int vinfo_nitems; int best = -1; vinfo_template.screen = ob_screen; vinfo_template.class = TrueColor; vinfo_return = XGetVisualInfo(ob_display, VisualScreenMask | VisualClassMask, &vinfo_template, &vinfo_nitems); if (vinfo_return) { int i; int max_depth = 1; for (i = 0; i < vinfo_nitems; ++i) { if (vinfo_return[i].depth > max_depth) { if (max_depth == 24 && vinfo_return[i].depth > 24) break; /* prefer 24 bit over 32 */ max_depth = vinfo_return[i].depth; best = i; } } if (max_depth < render_depth) best = -1; } if (best != -1) { render_depth = vinfo_return[best].depth; render_visual = vinfo_return[best].visual; render_colormap = XCreateColormap(ob_display, ob_root, render_visual, AllocNone); } XFree(vinfo_return); } switch (render_visual->class) { case TrueColor: truecolor_startup(); break; case PseudoColor: case StaticColor: case GrayScale: case StaticGray: pseudocolor_startup(); break; default: g_critical("unsupported visual class.\n"); exit(EXIT_FAILURE); } } void truecolor_startup(void) { unsigned long red_mask, green_mask, blue_mask; XImage *timage = NULL; timage = XCreateImage(ob_display, render_visual, render_depth, ZPixmap, 0, NULL, 1, 1, 32, 0); g_assert(timage != NULL); /* find the offsets for each color in the visual's masks */ red_mask = timage->red_mask; green_mask = timage->green_mask; blue_mask = timage->blue_mask; render_red_offset = 0; render_green_offset = 0; render_blue_offset = 0; while (! (red_mask & 1)) { render_red_offset++; red_mask >>= 1; } while (! (green_mask & 1)) { render_green_offset++; green_mask >>= 1; } while (! (blue_mask & 1)) { render_blue_offset++; blue_mask >>= 1; } render_red_shift = render_green_shift = render_blue_shift = 8; while (red_mask) { red_mask >>= 1; render_red_shift--; } while (green_mask) { green_mask >>= 1; render_green_shift--; } while (blue_mask) { blue_mask >>= 1; render_blue_shift--; } XFree(timage); } void pseudocolor_startup(void) { XColor icolors[256]; int tr, tg, tb, n, r, g, b, i, incolors, ii; unsigned long dev; int cpc, _ncolors; g_message("Initializing PseudoColor RenderControl\n"); /* determine the number of colors and the bits-per-color */ pseudo_bpc = 2; /* XXX THIS SHOULD BE A USER OPTION */ g_assert(pseudo_bpc >= 1); _ncolors = 1 << (pseudo_bpc * 3); if (_ncolors > 1 << render_depth) { g_warning("PseudoRenderControl: Invalid colormap size. Resizing.\n"); pseudo_bpc = 1 << (render_depth/3) >> 3; _ncolors = 1 << (pseudo_bpc * 3); } /* build a color cube */ pseudo_colors = malloc(_ncolors * sizeof(XColor)); cpc = 1 << pseudo_bpc; /* colors per channel */ for (n = 0, r = 0; r < cpc; r++) for (g = 0; g < cpc; g++) for (b = 0; b < cpc; b++, n++) { tr = (int)(((float)(r)/(float)(cpc-1)) * 0xFF); tg = (int)(((float)(g)/(float)(cpc-1)) * 0xFF); tb = (int)(((float)(b)/(float)(cpc-1)) * 0xFF); pseudo_colors[n].red = tr | tr << 8; pseudo_colors[n].green = tg | tg << 8; pseudo_colors[n].blue = tb | tb << 8; pseudo_colors[n].flags = DoRed|DoGreen|DoBlue; /* used to track allocation */ } /* allocate the colors */ for (i = 0; i < _ncolors; i++) if (!XAllocColor(ob_display, render_colormap, &pseudo_colors[i])) pseudo_colors[i].flags = 0; /* mark it as unallocated */ /* try allocate any colors that failed allocation above */ /* get the allocated values from the X server (only the first 256 XXX why!?) */ incolors = (((1 << render_depth) > 256) ? 256 : (1 << render_depth)); for (i = 0; i < incolors; i++) icolors[i].pixel = i; XQueryColors(ob_display, render_colormap, icolors, incolors); /* try match unallocated ones */ for (i = 0; i < _ncolors; i++) { if (!pseudo_colors[i].flags) { /* if it wasn't allocated... */ unsigned long closest = 0xffffffff, close = 0; for (ii = 0; ii < incolors; ii++) { /* find deviations */ r = (pseudo_colors[i].red - icolors[ii].red) & 0xff; g = (pseudo_colors[i].green - icolors[ii].green) & 0xff; b = (pseudo_colors[i].blue - icolors[ii].blue) & 0xff; /* find a weighted absolute deviation */ dev = (r * r) + (g * g) + (b * b); if (dev < closest) { closest = dev; close = ii; } } pseudo_colors[i].red = icolors[close].red; pseudo_colors[i].green = icolors[close].green; pseudo_colors[i].blue = icolors[close].blue; pseudo_colors[i].pixel = icolors[close].pixel; /* try alloc this closest color, it had better succeed! */ if (XAllocColor(ob_display, render_colormap, &pseudo_colors[i])) pseudo_colors[i].flags = DoRed|DoGreen|DoBlue; /* mark as alloced */ else g_assert(FALSE); /* wtf has gone wrong, its already alloced for chissake! */ } } } void x_paint(Window win, Appearance *l) { int i, transferred = 0, sw; pixel32 *source, *dest; Pixmap oldp; int x = l->area.x; int y = l->area.y; int w = l->area.width; int h = l->area.height; Rect tarea; /* area in which to draw textures */ if (w <= 0 || h <= 0 || x+w <= 0 || y+h <= 0) return; g_assert(l->surface.type == Surface_Planar); oldp = l->pixmap; /* save to free after changing the visible pixmap */ l->pixmap = XCreatePixmap(ob_display, ob_root, x+w, y+h, render_depth); g_assert(l->pixmap != None); if (l->xftdraw != NULL) XftDrawDestroy(l->xftdraw); l->xftdraw = XftDrawCreate(ob_display, l->pixmap, render_visual, render_colormap); g_assert(l->xftdraw != NULL); g_free(l->surface.data.planar.pixel_data); l->surface.data.planar.pixel_data = g_new(pixel32, w * h); if (l->surface.data.planar.grad == Background_ParentRelative) { sw = l->surface.data.planar.parent->area.width; source = l->surface.data.planar.parent->surface.data.planar.pixel_data + l->surface.data.planar.parentx + sw * l->surface.data.planar.parenty; dest = l->surface.data.planar.pixel_data; for (i = 0; i < h; i++, source += sw, dest += w) { memcpy(dest, source, w * sizeof(pixel32)); } } else if (l->surface.data.planar.grad == Background_Solid) gradient_solid(l, x, y, w, h); else gradient_render(&l->surface, w, h); for (i = 0; i < l->textures; i++) { tarea = l->texture[i].position; if (l->surface.data.planar.grad != Background_ParentRelative) { if (l->surface.data.planar.relief != Flat) { switch (l->surface.data.planar.bevel) { case Bevel1: tarea.x += 1; tarea.y += 1; tarea.width -= 2; tarea.height -= 2; break; case Bevel2: tarea.x += 2; tarea.y += 2; tarea.width -= 4; tarea.height -= 4; break; } } else if (l->surface.data.planar.border) { tarea.x += 1; tarea.y += 1; tarea.width -= 2; tarea.height -= 2; } } switch (l->texture[i].type) { case Text: if (!transferred) { transferred = 1; if (l->surface.data.planar.grad != Background_Solid) pixel32_to_pixmap(l->surface.data.planar.pixel_data, l->pixmap,x,y,w,h); } if (l->xftdraw == NULL) { l->xftdraw = XftDrawCreate(ob_display, l->pixmap, render_visual, render_colormap); } font_draw(l->xftdraw, &l->texture[i].data.text, &tarea); break; case Bitmask: if (!transferred) { transferred = 1; if (l->surface.data.planar.grad != Background_Solid) pixel32_to_pixmap(l->surface.data.planar.pixel_data, l->pixmap,x,y,w,h); } if (l->texture[i].data.mask.color->gc == None) color_allocate_gc(l->texture[i].data.mask.color); mask_draw(l->pixmap, &l->texture[i].data.mask, &tarea); break; case RGBA: image_draw(l->surface.data.planar.pixel_data, &l->texture[i].data.rgba, &tarea, &l->area); break; } } if (!transferred) { transferred = 1; if (l->surface.data.planar.grad != Background_Solid) pixel32_to_pixmap(l->surface.data.planar.pixel_data, l->pixmap ,x,y,w,h); } XSetWindowBackgroundPixmap(ob_display, win, l->pixmap); XClearWindow(ob_display, win); if (oldp != None) XFreePixmap(ob_display, oldp); } /* void gl_paint(Window win, Appearance *l) { glXMakeCurrent(ob_display, win, gl_context); } */ void render_shutdown(void) { } Appearance *appearance_new(SurfaceType type, int numtex) { PlanarSurface *p; Appearance *out; out = g_new(Appearance, 1); out->surface.type = type; out->textures = numtex; out->xftdraw = NULL; if (numtex) out->texture = g_new0(Texture, numtex); else out->texture = NULL; out->pixmap = None; switch (type) { case Surface_Planar: p = &out->surface.data.planar; p->primary = NULL; p->secondary = NULL; p->border_color = NULL; p->pixel_data = NULL; break; } return out; } Appearance *appearance_copy(Appearance *orig) { PlanarSurface *spo, *spc; Appearance *copy = g_new(Appearance, 1); copy->surface.type = orig->surface.type; switch (orig->surface.type) { case Surface_Planar: spo = &(orig->surface.data.planar); spc = &(copy->surface.data.planar); spc->grad = spo->grad; spc->relief = spo->relief; spc->bevel = spo->bevel; if (spo->primary != NULL) spc->primary = color_new(spo->primary->r, spo->primary->g, spo->primary->b); else spc->primary = NULL; if (spo->secondary != NULL) spc->secondary = color_new(spo->secondary->r, spo->secondary->g, spo->secondary->b); else spc->secondary = NULL; if (spo->border_color != NULL) spc->border_color = color_new(spo->border_color->r, spo->border_color->g, spo->border_color->b); else spc->border_color = NULL; spc->interlaced = spo->interlaced; spc->border = spo->border; spc->pixel_data = NULL; break; } copy->textures = orig->textures; copy->texture = g_memdup(orig->texture, orig->textures * sizeof(Texture)); copy->pixmap = None; copy->xftdraw = NULL; return copy; } void appearance_free(Appearance *a) { if (a) { PlanarSurface *p; if (a->pixmap != None) XFreePixmap(ob_display, a->pixmap); if (a->xftdraw != NULL) XftDrawDestroy(a->xftdraw); if (a->textures) g_free(a->texture); if (a->surface.type == Surface_Planar) { p = &a->surface.data.planar; if (p->primary != NULL) color_free(p->primary); if (p->secondary != NULL) color_free(p->secondary); if (p->border_color != NULL) color_free(p->border_color); if (p->pixel_data != NULL) g_free(p->pixel_data); } g_free(a); } } void pixel32_to_pixmap(pixel32 *in, Pixmap out, int x, int y, int w, int h) { unsigned char *scratch; XImage *im = NULL; im = XCreateImage(ob_display, render_visual, render_depth, ZPixmap, 0, NULL, w, h, 32, 0); g_assert(im != NULL); im->byte_order = endian; /* this malloc is a complete waste of time on normal 32bpp as reduce_depth just sets im->data = data and returns */ scratch = malloc(im->width * im->height * sizeof(pixel32)); im->data = (char*) scratch; reduce_depth(in, im); XPutImage(ob_display, out, DefaultGC(ob_display, ob_screen), im, 0, 0, x, y, w, h); im->data = NULL; XDestroyImage(im); free(scratch); } void appearance_minsize(Appearance *l, int *w, int *h) { int i; *w = *h = 1; switch (l->surface.type) { case Surface_Planar: if (l->surface.data.planar.relief != Flat) { switch (l->surface.data.planar.bevel) { case Bevel1: *w = *h = 2; break; case Bevel2: *w = *h = 4; break; } } else if (l->surface.data.planar.border) *w = *h = 2; for (i = 0; i < l->textures; ++i) switch (l->texture[i].type) { case Bitmask: *w += l->texture[i].data.mask.mask->w; *h += l->texture[i].data.mask.mask->h; break; case Text: *w +=font_measure_string(l->texture[i].data.text.font, l->texture[i].data.text.string, l->texture[i].data.text.shadow, l->texture[i].data.text.offset); *h += font_height(l->texture[i].data.text.font, l->texture[i].data.text.shadow, l->texture[i].data.text.offset); break; case RGBA: *w += l->texture[i].data.rgba.width; *h += l->texture[i].data.rgba.height; break; case NoTexture: break; } break; } } |