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 "font.h"
   7 #include "../kernel/openbox.h"
   8
   9 int render_depth;
  10 Visual *render_visual;
  11 Colormap render_colormap;
  12
  13 void render_startup(void)
  14 {
  15     paint = x_paint;
  16
  17     render_depth = DefaultDepth(ob_display, ob_screen);
  18     render_visual = DefaultVisual(ob_display, ob_screen);
  19     render_colormap = DefaultColormap(ob_display, ob_screen);
  20
  21     if (render_depth < 8) {
  22       XVisualInfo vinfo_template, *vinfo_return;
  23       // search for a TrueColor Visual... if we can't find one...
  24       // we will use the default visual for the screen
  25       int vinfo_nitems;
  26       int best = -1;
  27
  28       vinfo_template.screen = ob_screen;
  29       vinfo_template.class = TrueColor;
  30       vinfo_return = XGetVisualInfo(ob_display,
  31                                     VisualScreenMask | VisualClassMask,
  32                                     &vinfo_template, &vinfo_nitems);
  33       if (vinfo_return) {
  34         int i;
  35         int max_depth = 1;
  36         for (i = 0; i < vinfo_nitems; ++i) {
  37           if (vinfo_return[i].depth > max_depth) {
  38             if (max_depth == 24 && vinfo_return[i].depth > 24)
  39               break;          // prefer 24 bit over 32
  40             max_depth = vinfo_return[i].depth;
  41             best = i;
  42           }
  43         }
  44         if (max_depth < render_depth) best = -1;
  45       }
  46       if (best != -1) {
  47         render_depth = vinfo_return[best].depth;
  48         render_visual = vinfo_return[best].visual;
  49         render_colormap = XCreateColormap(ob_display, ob_root, render_visual,
  50                                           AllocNone);
  51       }
  52       XFree(vinfo_return);
  53     }
  54 }
  55
  56 void x_paint(Window win, Appearance *l, int w, int h)
  57 {
  58     int i;
  59     XImage *im;
  60
  61     if (w <= 0 || h <= 0) return;
  62
  63     g_assert(l->surface.type == Surface_Planar);
  64 //    printf("painting window %ld\n", win);
  65
  66     if (l->pixmap != None) XFreePixmap(ob_display, l->pixmap);
  67     l->pixmap = XCreatePixmap(ob_display, ob_root, w, h, render_depth);
  68     g_assert(l->pixmap != None);
  69
  70     if (l->xftdraw != NULL)
  71         XftDrawDestroy(l->xftdraw);
  72     l->xftdraw = XftDrawCreate(ob_display, l->pixmap, render_visual,
  73                                render_colormap);
  74     g_assert(l->xftdraw != NULL);
  75
  76     if (l->surface.data.planar.pixel_data != NULL)
  77         g_free(l->surface.data.planar.pixel_data);
  78     l->surface.data.planar.pixel_data = g_new(pixel32, w * h);
  79
  80     if (l->surface.data.planar.grad == Background_Solid)
  81         gradient_solid(l, w, h);
  82     else gradient_render(&l->surface, w, h);
  83     for (i = 0; i < l->textures; i++) {
  84         switch (l->texture[i].type) {
  85         case Text:
  86             if (l->xftdraw == NULL) {
  87                 l->xftdraw = XftDrawCreate(ob_display, l->pixmap,
  88                                         render_visual, render_colormap);
  89             }
  90             font_draw(l->xftdraw, &l->texture[i].data.text);
  91         break;
  92         }
  93     }
  94 //reduce depth
  95     if (l->surface.data.planar.grad != Background_Solid) {
  96         im = XCreateImage(ob_display, render_visual, render_depth,
  97                           ZPixmap, 0, NULL, w, h, 32, 0);
  98         g_assert(im != None);
  99         im->byte_order = endian;
 100         im->data = l->surface.data.planar.pixel_data;
 101         XPutImage(ob_display, l->pixmap, DefaultGC(ob_display, ob_screen),
 102                   im, 0, 0, 0, 0, w, h);
 103         im->data = NULL;
 104         XDestroyImage(im);
 105     }
 106     XSetWindowBackgroundPixmap(ob_display, win, l->pixmap);
 107     XClearWindow(ob_display, win);
 108 }
 109
 110 /*
 111 void gl_paint(Window win, Appearance *l)
 112 {
 113     glXMakeCurrent(ob_display, win, gl_context);
 114 }
 115 */
 116
 117 void render_shutdown(void)
 118 {
 119 }
 120
 121 Appearance *appearance_new(SurfaceType type, int numtex)
 122 {
 123   PlanarSurface *p;
 124   Appearance *out;
 125
 126   out = g_new(Appearance, 1);
 127   out->surface.type = type;
 128   out->textures = numtex;
 129   out->xftdraw = NULL;
 130   if (numtex) out->texture = g_new(Texture, numtex);
 131   out->pixmap = None;
 132
 133   switch (type) {
 134   case Surface_Planar:
 135     p = &out->surface.data.planar;
 136     p->primary = NULL;
 137     p->secondary = NULL;
 138     p->border_color = NULL;
 139     p->pixel_data = NULL;
 140     break;
 141   }
 142   return out;
 143 }
 144
 145 Appearance *appearance_copy(Appearance *orig)
 146 {
 147     PlanarSurface *spo, *spc;
 148     Appearance *copy = g_new(Appearance, 1);
 149     copy->surface.type = orig->surface.type;
 150     switch (orig->surface.type) {
 151     case Surface_Planar:
 152         spo = &(orig->surface.data.planar);
 153         spc = &(copy->surface.data.planar);
 154         spc->grad = spo->grad;
 155         spc->relief = spo->relief;
 156         spc->bevel = spo->bevel;
 157         if (spo->primary != NULL)
 158             spc->primary = color_new(spo->primary->r,
 159                                      spo->primary->g,
 160                                      spo->primary->b);
 161         else spc->primary = NULL;
 162
 163         if (spo->secondary != NULL)
 164             spc->secondary = color_new(spo->secondary->r,
 165                                        spo->secondary->g,
 166                                        spo->secondary->b);
 167         else spc->secondary = NULL;
 168
 169         if (spo->border_color != NULL)
 170             spc->border_color = color_new(spo->border_color->r,
 171                                           spo->border_color->g,
 172                                           spo->border_color->b);
 173         else spc->border_color = NULL;
 174
 175         spc->interlaced = spo->interlaced;
 176         spc->border = spo->border;
 177         spc->pixel_data = NULL;
 178     break;
 179     }
 180     copy->textures = orig->textures;
 181     if (orig->textures) {
 182         copy->texture = malloc(orig->textures * sizeof(Texture));
 183         memcpy(copy->texture, orig->texture, orig->textures * sizeof(Texture));
 184     } else copy->texture = NULL;
 185     copy->pixmap = None;
 186     copy->xftdraw = NULL;
 187     return copy;
 188 }
 189
 190 void appearance_free(Appearance *a)
 191 {
 192     PlanarSurface *p;
 193     if (a->pixmap != None) XFreePixmap(ob_display, a->pixmap);
 194     if (a->xftdraw != NULL) XftDrawDestroy(a->xftdraw);
 195     if (a->textures)
 196         g_free(a->texture);
 197     if (a->surface.type == Surface_Planar) {
 198         p = &a->surface.data.planar;
 199         if (p->primary != NULL) color_free(p->primary);
 200         if (p->secondary != NULL) color_free(p->secondary);
 201         if (p->border_color != NULL) color_free(p->border_color);
 202     }
 203     g_free(a);
 204 }