537 lines
17 KiB
C
537 lines
17 KiB
C
#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <glib.h>
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#include "render.h"
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#include "gradient.h"
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#include "font.h"
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#include "mask.h"
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#include "color.h"
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#include "image.h"
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#include "theme.h"
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#include "kernel/openbox.h"
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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int render_depth;
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XVisualInfo render_visual_info;
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Visual *render_visual;
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Colormap render_colormap;
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int render_red_offset = 0, render_green_offset = 0, render_blue_offset = 0;
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int render_red_shift, render_green_shift, render_blue_shift;
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int render_red_mask, render_green_mask, render_blue_mask;
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void render_startup(void)
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{
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paint = x_paint;
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render_depth = DefaultDepth(ob_display, ob_screen);
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render_visual = DefaultVisual(ob_display, ob_screen);
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render_colormap = DefaultColormap(ob_display, ob_screen);
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if (render_depth < 8) {
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XVisualInfo vinfo_template, *vinfo_return;
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/* search for a TrueColor Visual... if we can't find one...
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we will use the default visual for the screen */
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int vinfo_nitems;
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int best = -1;
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vinfo_template.screen = ob_screen;
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vinfo_template.class = TrueColor;
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vinfo_return = XGetVisualInfo(ob_display,
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VisualScreenMask | VisualClassMask,
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&vinfo_template, &vinfo_nitems);
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if (vinfo_return) {
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int i;
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int max_depth = 1;
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for (i = 0; i < vinfo_nitems; ++i) {
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if (vinfo_return[i].depth > max_depth) {
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if (max_depth == 24 && vinfo_return[i].depth > 24)
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break; /* prefer 24 bit over 32 */
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max_depth = vinfo_return[i].depth;
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best = i;
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}
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}
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if (max_depth < render_depth) best = -1;
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}
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if (best != -1) {
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render_depth = vinfo_return[best].depth;
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render_visual = vinfo_return[best].visual;
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render_colormap = XCreateColormap(ob_display, ob_root, render_visual,
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AllocNone);
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render_visual_info = vinfo_return[best];
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}
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XFree(vinfo_return);
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}
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switch (render_visual->class) {
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case TrueColor:
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truecolor_startup();
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break;
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case PseudoColor:
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case StaticColor:
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case GrayScale:
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case StaticGray:
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pseudocolor_startup();
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break;
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default:
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g_critical("unsupported visual class.\n");
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exit(EXIT_FAILURE);
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}
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}
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void truecolor_startup(void)
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{
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unsigned long red_mask, green_mask, blue_mask;
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XImage *timage = NULL;
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timage = XCreateImage(ob_display, render_visual, render_depth,
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ZPixmap, 0, NULL, 1, 1, 32, 0);
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g_assert(timage != NULL);
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/* find the offsets for each color in the visual's masks */
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render_red_mask = red_mask = timage->red_mask;
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render_green_mask = green_mask = timage->green_mask;
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render_blue_mask = blue_mask = timage->blue_mask;
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render_red_offset = 0;
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render_green_offset = 0;
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render_blue_offset = 0;
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while (! (red_mask & 1)) { render_red_offset++; red_mask >>= 1; }
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while (! (green_mask & 1)) { render_green_offset++; green_mask >>= 1; }
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while (! (blue_mask & 1)) { render_blue_offset++; blue_mask >>= 1; }
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render_red_shift = render_green_shift = render_blue_shift = 8;
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while (red_mask) { red_mask >>= 1; render_red_shift--; }
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while (green_mask) { green_mask >>= 1; render_green_shift--; }
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while (blue_mask) { blue_mask >>= 1; render_blue_shift--; }
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XFree(timage);
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}
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void pseudocolor_startup(void)
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{
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XColor icolors[256];
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int tr, tg, tb, n, r, g, b, i, incolors, ii;
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unsigned long dev;
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int cpc, _ncolors;
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g_message("Initializing PseudoColor RenderControl\n");
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/* determine the number of colors and the bits-per-color */
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pseudo_bpc = 2; /* XXX THIS SHOULD BE A USER OPTION */
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g_assert(pseudo_bpc >= 1);
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_ncolors = pseudo_ncolors();
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if (_ncolors > 1 << render_depth) {
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g_warning("PseudoRenderControl: Invalid colormap size. Resizing.\n");
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pseudo_bpc = 1 << (render_depth/3) >> 3;
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_ncolors = 1 << (pseudo_bpc * 3);
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}
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/* build a color cube */
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pseudo_colors = malloc(_ncolors * sizeof(XColor));
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cpc = 1 << pseudo_bpc; /* colors per channel */
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for (n = 0, r = 0; r < cpc; r++)
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for (g = 0; g < cpc; g++)
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for (b = 0; b < cpc; b++, n++) {
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tr = (int)(((float)(r)/(float)(cpc-1)) * 0xFF);
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tg = (int)(((float)(g)/(float)(cpc-1)) * 0xFF);
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tb = (int)(((float)(b)/(float)(cpc-1)) * 0xFF);
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pseudo_colors[n].red = tr | tr << 8;
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pseudo_colors[n].green = tg | tg << 8;
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pseudo_colors[n].blue = tb | tb << 8;
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pseudo_colors[n].flags = DoRed|DoGreen|DoBlue; /* used to track
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allocation */
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}
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/* allocate the colors */
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for (i = 0; i < _ncolors; i++)
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if (!XAllocColor(ob_display, render_colormap, &pseudo_colors[i]))
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pseudo_colors[i].flags = 0; /* mark it as unallocated */
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/* try allocate any colors that failed allocation above */
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/* get the allocated values from the X server (only the first 256 XXX why!?)
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*/
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incolors = (((1 << render_depth) > 256) ? 256 : (1 << render_depth));
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for (i = 0; i < incolors; i++)
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icolors[i].pixel = i;
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XQueryColors(ob_display, render_colormap, icolors, incolors);
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/* try match unallocated ones */
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for (i = 0; i < _ncolors; i++) {
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if (!pseudo_colors[i].flags) { /* if it wasn't allocated... */
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unsigned long closest = 0xffffffff, close = 0;
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for (ii = 0; ii < incolors; ii++) {
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/* find deviations */
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r = (pseudo_colors[i].red - icolors[ii].red) & 0xff;
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g = (pseudo_colors[i].green - icolors[ii].green) & 0xff;
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b = (pseudo_colors[i].blue - icolors[ii].blue) & 0xff;
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/* find a weighted absolute deviation */
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dev = (r * r) + (g * g) + (b * b);
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if (dev < closest) {
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closest = dev;
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close = ii;
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}
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}
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pseudo_colors[i].red = icolors[close].red;
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pseudo_colors[i].green = icolors[close].green;
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pseudo_colors[i].blue = icolors[close].blue;
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pseudo_colors[i].pixel = icolors[close].pixel;
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/* try alloc this closest color, it had better succeed! */
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if (XAllocColor(ob_display, render_colormap, &pseudo_colors[i]))
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pseudo_colors[i].flags = DoRed|DoGreen|DoBlue; /* mark as alloced */
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else
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g_assert(FALSE); /* wtf has gone wrong, its already alloced for
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chissake! */
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}
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}
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}
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void x_paint(Window win, Appearance *l)
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{
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int i, transferred = 0, sw;
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pixel32 *source, *dest;
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Pixmap oldp;
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int x = l->area.x;
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int y = l->area.y;
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int w = l->area.width;
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int h = l->area.height;
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Rect tarea; /* area in which to draw textures */
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if (w <= 0 || h <= 0 || x+w <= 0 || y+h <= 0) return;
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g_assert(l->surface.type == Surface_Planar);
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oldp = l->pixmap; /* save to free after changing the visible pixmap */
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l->pixmap = XCreatePixmap(ob_display, ob_root, x+w, y+h, render_depth);
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g_assert(l->pixmap != None);
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if (l->xftdraw != NULL)
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XftDrawDestroy(l->xftdraw);
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l->xftdraw = XftDrawCreate(ob_display, l->pixmap, render_visual,
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render_colormap);
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g_assert(l->xftdraw != NULL);
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g_free(l->surface.data.planar.pixel_data);
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l->surface.data.planar.pixel_data = g_new(pixel32, w * h);
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if (l->surface.data.planar.grad == Background_ParentRelative) {
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sw = l->surface.data.planar.parent->area.width;
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source = l->surface.data.planar.parent->surface.data.planar.pixel_data
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+ l->surface.data.planar.parentx
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+ sw * l->surface.data.planar.parenty;
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dest = l->surface.data.planar.pixel_data;
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for (i = 0; i < h; i++, source += sw, dest += w) {
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memcpy(dest, source, w * sizeof(pixel32));
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}
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}
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else if (l->surface.data.planar.grad == Background_Solid)
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gradient_solid(l, x, y, w, h);
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else gradient_render(&l->surface, w, h);
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for (i = 0; i < l->textures; i++) {
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tarea = l->texture[i].position;
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if (l->surface.data.planar.grad != Background_ParentRelative) {
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if (l->surface.data.planar.relief != Flat) {
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switch (l->surface.data.planar.bevel) {
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case Bevel1:
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tarea.x += 1; tarea.y += 1;
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tarea.width -= 2; tarea.height -= 2;
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break;
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case Bevel2:
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tarea.x += 2; tarea.y += 2;
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tarea.width -= 4; tarea.height -= 4;
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break;
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}
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} else if (l->surface.data.planar.border) {
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tarea.x += 1; tarea.y += 1;
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tarea.width -= 2; tarea.height -= 2;
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}
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}
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switch (l->texture[i].type) {
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case Text:
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if (!transferred) {
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transferred = 1;
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if (l->surface.data.planar.grad != Background_Solid)
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pixel32_to_pixmap(l->surface.data.planar.pixel_data,
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l->pixmap,x,y,w,h);
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}
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if (l->xftdraw == NULL) {
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l->xftdraw = XftDrawCreate(ob_display, l->pixmap,
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render_visual, render_colormap);
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}
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font_draw(l->xftdraw, &l->texture[i].data.text,
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&tarea);
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break;
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case Bitmask:
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if (!transferred) {
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transferred = 1;
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if (l->surface.data.planar.grad != Background_Solid)
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pixel32_to_pixmap(l->surface.data.planar.pixel_data,
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l->pixmap,x,y,w,h);
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}
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if (l->texture[i].data.mask.color->gc == None)
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color_allocate_gc(l->texture[i].data.mask.color);
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mask_draw(l->pixmap, &l->texture[i].data.mask,
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&tarea);
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break;
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case RGBA:
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image_draw(l->surface.data.planar.pixel_data,
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&l->texture[i].data.rgba,
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&tarea, &l->area);
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break;
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}
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}
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if (!transferred) {
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transferred = 1;
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if (l->surface.data.planar.grad != Background_Solid)
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pixel32_to_pixmap(l->surface.data.planar.pixel_data, l->pixmap
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,x,y,w,h);
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}
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XSetWindowBackgroundPixmap(ob_display, win, l->pixmap);
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XClearWindow(ob_display, win);
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if (oldp != None) XFreePixmap(ob_display, oldp);
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}
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/*
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void gl_paint(Window win, Appearance *l)
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{
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glXMakeCurrent(ob_display, win, gl_context);
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}
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*/
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void render_shutdown(void)
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{
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}
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Appearance *appearance_new(SurfaceType type, int numtex)
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{
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PlanarSurface *p;
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Appearance *out;
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out = g_new(Appearance, 1);
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out->surface.type = type;
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out->textures = numtex;
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out->xftdraw = NULL;
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if (numtex) out->texture = g_new0(Texture, numtex);
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else out->texture = NULL;
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out->pixmap = None;
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switch (type) {
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case Surface_Planar:
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p = &out->surface.data.planar;
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p->primary = NULL;
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p->secondary = NULL;
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p->border_color = NULL;
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p->bevel_dark = NULL;
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p->bevel_light = NULL;
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p->pixel_data = NULL;
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break;
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}
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return out;
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}
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Appearance *appearance_copy(Appearance *orig)
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{
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PlanarSurface *spo, *spc;
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Appearance *copy = g_new(Appearance, 1);
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copy->surface.type = orig->surface.type;
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switch (orig->surface.type) {
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case Surface_Planar:
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spo = &(orig->surface.data.planar);
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spc = &(copy->surface.data.planar);
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spc->grad = spo->grad;
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spc->relief = spo->relief;
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spc->bevel = spo->bevel;
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if (spo->primary != NULL)
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spc->primary = color_new(spo->primary->r,
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spo->primary->g,
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spo->primary->b);
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else spc->primary = NULL;
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if (spo->secondary != NULL)
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spc->secondary = color_new(spo->secondary->r,
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spo->secondary->g,
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spo->secondary->b);
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else spc->secondary = NULL;
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if (spo->border_color != NULL)
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spc->border_color = color_new(spo->border_color->r,
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spo->border_color->g,
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spo->border_color->b);
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else spc->border_color = NULL;
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if (spo->bevel_dark != NULL)
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spc->bevel_dark = color_new(spo->bevel_dark->r,
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spo->bevel_dark->g,
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spo->bevel_dark->b);
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else spc->bevel_dark = NULL;
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if (spo->bevel_light != NULL)
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spc->bevel_light = color_new(spo->bevel_light->r,
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spo->bevel_light->g,
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spo->bevel_light->b);
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else spc->bevel_light = NULL;
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spc->interlaced = spo->interlaced;
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spc->border = spo->border;
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spc->pixel_data = NULL;
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break;
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}
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copy->textures = orig->textures;
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copy->texture = g_memdup(orig->texture, orig->textures * sizeof(Texture));
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copy->pixmap = None;
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copy->xftdraw = NULL;
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return copy;
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}
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void appearance_free(Appearance *a)
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{
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if (a) {
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PlanarSurface *p;
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if (a->pixmap != None) XFreePixmap(ob_display, a->pixmap);
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if (a->xftdraw != NULL) XftDrawDestroy(a->xftdraw);
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if (a->textures)
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g_free(a->texture);
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if (a->surface.type == Surface_Planar) {
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p = &a->surface.data.planar;
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color_free(p->primary);
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color_free(p->secondary);
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color_free(p->border_color);
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color_free(p->bevel_dark);
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color_free(p->bevel_light);
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g_free(p->pixel_data);
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}
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g_free(a);
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}
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}
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void pixel32_to_pixmap(pixel32 *in, Pixmap out, int x, int y, int w, int h)
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{
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pixel32 *scratch;
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XImage *im = NULL;
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im = XCreateImage(ob_display, render_visual, render_depth,
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ZPixmap, 0, NULL, w, h, 32, 0);
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g_assert(im != NULL);
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im->byte_order = render_endian;
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/* this malloc is a complete waste of time on normal 32bpp
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as reduce_depth just sets im->data = data and returns
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*/
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scratch = g_new(pixel32, im->width * im->height);
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im->data = (char*) scratch;
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reduce_depth(in, im);
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XPutImage(ob_display, out, DefaultGC(ob_display, ob_screen),
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im, 0, 0, x, y, w, h);
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im->data = NULL;
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XDestroyImage(im);
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g_free(scratch);
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}
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void appearance_minsize(Appearance *l, int *w, int *h)
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{
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int i;
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int m;
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*w = *h = 1;
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switch (l->surface.type) {
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case Surface_Planar:
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if (l->surface.data.planar.relief != Flat) {
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switch (l->surface.data.planar.bevel) {
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case Bevel1:
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*w = *h = 2;
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break;
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case Bevel2:
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*w = *h = 4;
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break;
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}
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} else if (l->surface.data.planar.border)
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*w = *h = 2;
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for (i = 0; i < l->textures; ++i) {
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switch (l->texture[i].type) {
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case Bitmask:
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*w += l->texture[i].data.mask.mask->w;
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*h += l->texture[i].data.mask.mask->h;
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break;
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case Text:
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m = font_measure_string(l->texture[i].data.text.font,
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l->texture[i].data.text.string,
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l->texture[i].data.text.shadow,
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l->texture[i].data.text.offset);
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*w += m;
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m = font_height(l->texture[i].data.text.font,
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l->texture[i].data.text.shadow,
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l->texture[i].data.text.offset);
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*h += m;
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break;
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case RGBA:
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*w += l->texture[i].data.rgba.width;
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*h += l->texture[i].data.rgba.height;
|
|
break;
|
|
case NoTexture:
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
gboolean render_pixmap_to_rgba(Pixmap pmap, Pixmap mask,
|
|
int *w, int *h, pixel32 **data)
|
|
{
|
|
Window xr;
|
|
int xx, xy;
|
|
guint pw, ph, mw, mh, xb, xd, i, x, y, di;
|
|
XImage *xi, *xm = NULL;
|
|
|
|
if (!XGetGeometry(ob_display, pmap, &xr, &xx, &xy, &pw, &ph, &xb, &xd))
|
|
return FALSE;
|
|
if (mask) {
|
|
if (!XGetGeometry(ob_display, mask, &xr, &xx, &xy, &mw, &mh, &xb, &xd))
|
|
return FALSE;
|
|
if (pw != mw || ph != mh || xd != 1)
|
|
return FALSE;
|
|
}
|
|
|
|
xi = XGetImage(ob_display, pmap, 0, 0, pw, ph, 0xffffffff, ZPixmap);
|
|
if (!xi)
|
|
return FALSE;
|
|
|
|
if (mask) {
|
|
xm = XGetImage(ob_display, mask, 0, 0, mw, mh, 0xffffffff, ZPixmap);
|
|
if (!xm)
|
|
return FALSE;
|
|
}
|
|
|
|
*data = g_new(pixel32, pw * ph);
|
|
increase_depth(*data, xi);
|
|
|
|
if (mask) {
|
|
/* apply transparency from the mask */
|
|
di = 0;
|
|
for (i = 0, y = 0; y < ph; ++y) {
|
|
for (x = 0; x < pw; ++x, ++i) {
|
|
if (!((((unsigned)xm->data[di + x / 8]) >> (x % 8)) & 0x1))
|
|
(*data)[i] &= ~(0xff << default_alpha_offset);
|
|
}
|
|
di += xm->bytes_per_line;
|
|
}
|
|
}
|
|
|
|
*w = pw;
|
|
*h = ph;
|
|
|
|
return TRUE;
|
|
}
|