render/render.c

   1 #include <X11/Xlib.h>
   2 #include <X11/Xutil.h>
   3 #include <glib.h>
   4 #include "render.h"
   5 #include "gradient.h"
   6 #include "../kernel/openbox.h"
   7
   8 int render_depth;
   9 Visual *render_visual;
  10 Colormap render_colormap;
  11
  12 void render_startup(void)
  13 {
  14     paint = x_paint;
  15
  16     render_depth = DefaultDepth(ob_display, ob_screen);
  17     render_visual = DefaultVisual(ob_display, ob_screen);
  18     render_colormap = DefaultColormap(ob_display, ob_screen);
  19
  20     if (render_depth < 8) {
  21       XVisualInfo vinfo_template, *vinfo_return;
  22       // search for a TrueColor Visual... if we can't find one...
  23       // we will use the default visual for the screen
  24       int vinfo_nitems;
  25       int best = -1;
  26
  27       vinfo_template.screen = ob_screen;
  28       vinfo_template.class = TrueColor;
  29       vinfo_return = XGetVisualInfo(ob_display,
  30                                     VisualScreenMask | VisualClassMask,
  31                                     &vinfo_template, &vinfo_nitems);
  32       if (vinfo_return) {
  33         int i;
  34         int max_depth = 1;
  35         for (i = 0; i < vinfo_nitems; ++i) {
  36           if (vinfo_return[i].depth > max_depth) {
  37             if (max_depth == 24 && vinfo_return[i].depth > 24)
  38               break;          // prefer 24 bit over 32
  39             max_depth = vinfo_return[i].depth;
  40             best = i;
  41           }
  42         }
  43         if (max_depth < render_depth) best = -1;
  44       }
  45       if (best != -1) {
  46         render_depth = vinfo_return[best].depth;
  47         render_visual = vinfo_return[best].visual;
  48         render_colormap = XCreateColormap(ob_display, ob_root, render_visual,
  49                                           AllocNone);
  50       }
  51       XFree(vinfo_return);
  52     }
  53 }
  54
  55 void x_paint(Window win, Appearance *l, int w, int h)
  56 {
  57     int i;
  58     XImage *im;
  59
  60     if (w <= 0 || h <= 0) return;
  61
  62     g_assert(l->surface.type == Surface_Planar);
  63 //    printf("painting window %ld\n", win);
  64
  65     if (l->pixmap != None) XFreePixmap(ob_display, l->pixmap);
  66     l->pixmap = XCreatePixmap(ob_display, ob_root, w, h, render_depth);
  67     g_assert(l->pixmap != None);
  68
  69     if (l->xftdraw != NULL)
  70         XftDrawDestroy(l->xftdraw);
  71     l->xftdraw = XftDrawCreate(ob_display, l->pixmap, render_visual,
  72                                render_colormap);
  73     g_assert(l->xftdraw != NULL);
  74
  75     if (l->surface.data.planar.pixel_data != NULL)
  76         g_free(l->surface.data.planar.pixel_data);
  77     l->surface.data.planar.pixel_data = g_new(pixel32, w * h);
  78
  79     if (l->surface.data.planar.grad == Background_Solid)
  80         gradient_solid(l, w, h);
  81     else gradient_render(&l->surface, w, h);
  82     for (i = 0; i < l->textures; i++) {
  83         switch (l->texture[i].type) {
  84         case Text:
  85             if (l->xftdraw == NULL) {
  86                 l->xftdraw = XftDrawCreate(ob_display, l->pixmap,
  87                                         render_visual, render_colormap);
  88             }
  89             font_draw(l->xftdraw, l->texture[i].data.text);
  90         break;
  91         }
  92     }
  93 //reduce depth
  94     if (l->surface.data.planar.grad != Background_Solid) {
  95         im = XCreateImage(ob_display, render_visual, render_depth,
  96                           ZPixmap, 0, NULL, w, h, 32, 0);
  97         g_assert(im != None);
  98         im->byte_order = endian;
  99         im->data = l->surface.data.planar.pixel_data;
 100         XPutImage(ob_display, l->pixmap, DefaultGC(ob_display, ob_screen),
 101                   im, 0, 0, 0, 0, w, h);
 102         im->data = NULL;
 103         XDestroyImage(im);
 104     }
 105     XSetWindowBackgroundPixmap(ob_display, win, l->pixmap);
 106     XClearWindow(ob_display, win);
 107 }
 108
 109 /*
 110 void gl_paint(Window win, Appearance *l)
 111 {
 112     glXMakeCurrent(ob_display, win, gl_context);
 113 }
 114 */
 115
 116 void render_shutdown(void)
 117 {
 118 }
 119
 120 Appearance *appearance_new(SurfaceType type, int numtex)
 121 {
 122   PlanarSurface *p;
 123   Appearance *out;
 124
 125   out = g_new(Appearance, 1);
 126   out->surface.type = type;
 127   out->textures = numtex;
 128   out->xftdraw = NULL;
 129   if (numtex) out->texture = g_new(Texture, numtex);
 130   out->pixmap = None;
 131
 132   switch (type) {
 133   case Surface_Planar:
 134     p = &out->surface.data.planar;
 135     p->primary = NULL;
 136     p->secondary = NULL;
 137     p->border_color = NULL;
 138     p->pixel_data = NULL;
 139     break;
 140   }
 141   return out;
 142 }
 143
 144 Appearance *appearance_copy(Appearance *orig)
 145 {
 146     PlanarSurface *spo, *spc;
 147     Appearance *copy = g_new(Appearance, 1);
 148     copy->surface.type = orig->surface.type;
 149     switch (orig->surface.type) {
 150     case Surface_Planar:
 151         spo = &(orig->surface.data.planar);
 152         spc = &(copy->surface.data.planar);
 153         spc->grad = spo->grad;
 154         spc->relief = spo->relief;
 155         spc->bevel = spo->bevel;
 156         if (spo->primary != NULL)
 157             spc->primary = color_new(spo->primary->r,
 158                                      spo->primary->g,
 159                                      spo->primary->b);
 160         else spc->primary = NULL;
 161
 162         if (spo->secondary != NULL)
 163             spc->secondary = color_new(spo->secondary->r,
 164                                        spo->secondary->g,
 165                                        spo->secondary->b);
 166         else spc->secondary = NULL;
 167
 168         if (spo->border_color != NULL)
 169             spc->border_color = color_new(spo->border_color->r,
 170                                           spo->border_color->g,
 171                                           spo->border_color->b);
 172         else spc->border_color = NULL;
 173
 174         spc->interlaced = spo->interlaced;
 175         spc->border = spo->border;
 176         spc->pixel_data = NULL;
 177     break;
 178     }
 179     copy->textures = orig->textures;
 180     if (orig->textures) {
 181         copy->texture = malloc(orig->textures * sizeof(Texture));
 182         memcpy(copy->texture, orig->texture, orig->textures * sizeof(Texture));
 183     } else copy->texture = NULL;
 184     copy->pixmap = None;
 185     copy->xftdraw = NULL;
 186     return copy;
 187 }
 188
 189 void appearance_free(Appearance *a)
 190 {
 191     PlanarSurface *p;
 192     if (a->pixmap != None) XFreePixmap(ob_display, a->pixmap);
 193     if (a->xftdraw != NULL) XftDrawDestroy(a->xftdraw);
 194     if (a->textures)
 195         g_free(a->texture);
 196     if (a->surface.type == Surface_Planar) {
 197         p = &a->surface.data.planar;
 198         if (p->primary != NULL) color_free(p->primary);
 199         if (p->secondary != NULL) color_free(p->secondary);
 200         if (p->border_color != NULL) color_free(p->border_color);
 201     }
 202     g_free(a);
 203 }