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 "mask.h"
   8 #include "../kernel/openbox.h"
   9
  10 int render_depth;
  11 Visual *render_visual;
  12 Colormap render_colormap;
  13
  14 void render_startup(void)
  15 {
  16     paint = x_paint;
  17
  18     render_depth = DefaultDepth(ob_display, ob_screen);
  19     render_visual = DefaultVisual(ob_display, ob_screen);
  20     render_colormap = DefaultColormap(ob_display, ob_screen);
  21
  22     if (render_depth < 8) {
  23       XVisualInfo vinfo_template, *vinfo_return;
  24       // search for a TrueColor Visual... if we can't find one...
  25       // we will use the default visual for the screen
  26       int vinfo_nitems;
  27       int best = -1;
  28
  29       vinfo_template.screen = ob_screen;
  30       vinfo_template.class = TrueColor;
  31       vinfo_return = XGetVisualInfo(ob_display,
  32                                     VisualScreenMask | VisualClassMask,
  33                                     &vinfo_template, &vinfo_nitems);
  34       if (vinfo_return) {
  35         int i;
  36         int max_depth = 1;
  37         for (i = 0; i < vinfo_nitems; ++i) {
  38           if (vinfo_return[i].depth > max_depth) {
  39             if (max_depth == 24 && vinfo_return[i].depth > 24)
  40               break;          // prefer 24 bit over 32
  41             max_depth = vinfo_return[i].depth;
  42             best = i;
  43           }
  44         }
  45         if (max_depth < render_depth) best = -1;
  46       }
  47       if (best != -1) {
  48         render_depth = vinfo_return[best].depth;
  49         render_visual = vinfo_return[best].visual;
  50         render_colormap = XCreateColormap(ob_display, ob_root, render_visual,
  51                                           AllocNone);
  52       }
  53       XFree(vinfo_return);
  54     }
  55 }
  56
  57 void x_paint(Window win, Appearance *l, int x, int y, int w, int h)
  58 {
  59     int i;
  60     XImage *im;
  61     Pixmap oldp;
  62
  63     if (w <= 0 || h <= 0) return;
  64
  65     g_assert(l->surface.type == Surface_Planar);
  66 //    printf("painting window %ld\n", win);
  67
  68     oldp = l->pixmap; /* save to free after changing the visible pixmap */
  69     l->pixmap = XCreatePixmap(ob_display, ob_root, x+w, y+h, render_depth);
  70     g_assert(l->pixmap != None);
  71
  72     if (l->xftdraw != NULL)
  73         XftDrawDestroy(l->xftdraw);
  74     l->xftdraw = XftDrawCreate(ob_display, l->pixmap, render_visual,
  75                                render_colormap);
  76     g_assert(l->xftdraw != NULL);
  77
  78     if (l->surface.data.planar.pixel_data != NULL)
  79         g_free(l->surface.data.planar.pixel_data);
  80     l->surface.data.planar.pixel_data = g_new(pixel32, w * h);
  81
  82     if (l->surface.data.planar.grad == Background_Solid)
  83         gradient_solid(l, x, y, w, h);
  84     else gradient_render(&l->surface, w, h);
  85
  86 /*reduce depth here...
  87   also, this is not the right place for this code, it's only here so
  88   text rendering shows up for now.
  89 */
  90     if (l->surface.data.planar.grad != Background_Solid) {
  91         im = XCreateImage(ob_display, render_visual, render_depth,
  92                           ZPixmap, 0, NULL, w, h, 32, 0);
  93         g_assert(im != None);
  94         im->byte_order = endian;
  95         im->data = l->surface.data.planar.pixel_data;
  96         XPutImage(ob_display, l->pixmap, DefaultGC(ob_display, ob_screen),
  97                   im, 0, 0, x, y, w, h);
  98         im->data = NULL;
  99         XDestroyImage(im);
 100     }
 101
 102     for (i = 0; i < l->textures; i++) {
 103         switch (l->texture[i].type) {
 104         case Text:
 105             if (l->xftdraw == NULL) {
 106                 l->xftdraw = XftDrawCreate(ob_display, l->pixmap,
 107                                         render_visual, render_colormap);
 108             }
 109             font_draw(l->xftdraw, &l->texture[i].data.text);
 110         break;
 111         case Bitmask:
 112             if (l->texture[i].data.mask.color->gc == None)
 113                 color_allocate_gc(l->texture[i].data.mask.color);
 114             mask_draw(l->pixmap, &l->texture[i].data.mask, w, h);
 115         break;
 116         }
 117     }
 118     XSetWindowBackgroundPixmap(ob_display, win, l->pixmap);
 119     XClearWindow(ob_display, win);
 120     if (oldp != None) XFreePixmap(ob_display, oldp);
 121 }
 122
 123 /*
 124 void gl_paint(Window win, Appearance *l)
 125 {
 126     glXMakeCurrent(ob_display, win, gl_context);
 127 }
 128 */
 129
 130 void render_shutdown(void)
 131 {
 132 }
 133
 134 Appearance *appearance_new(SurfaceType type, int numtex)
 135 {
 136   PlanarSurface *p;
 137   Appearance *out;
 138
 139   out = g_new(Appearance, 1);
 140   out->surface.type = type;
 141   out->textures = numtex;
 142   out->xftdraw = NULL;
 143   if (numtex) out->texture = g_new(Texture, numtex);
 144   out->pixmap = None;
 145
 146   switch (type) {
 147   case Surface_Planar:
 148     p = &out->surface.data.planar;
 149     p->primary = NULL;
 150     p->secondary = NULL;
 151     p->border_color = NULL;
 152     p->pixel_data = NULL;
 153     break;
 154   }
 155   return out;
 156 }
 157
 158 Appearance *appearance_copy(Appearance *orig)
 159 {
 160     PlanarSurface *spo, *spc;
 161     Appearance *copy = g_new(Appearance, 1);
 162     copy->surface.type = orig->surface.type;
 163     switch (orig->surface.type) {
 164     case Surface_Planar:
 165         spo = &(orig->surface.data.planar);
 166         spc = &(copy->surface.data.planar);
 167         spc->grad = spo->grad;
 168         spc->relief = spo->relief;
 169         spc->bevel = spo->bevel;
 170         if (spo->primary != NULL)
 171             spc->primary = color_new(spo->primary->r,
 172                                      spo->primary->g,
 173                                      spo->primary->b);
 174         else spc->primary = NULL;
 175
 176         if (spo->secondary != NULL)
 177             spc->secondary = color_new(spo->secondary->r,
 178                                        spo->secondary->g,
 179                                        spo->secondary->b);
 180         else spc->secondary = NULL;
 181
 182         if (spo->border_color != NULL)
 183             spc->border_color = color_new(spo->border_color->r,
 184                                           spo->border_color->g,
 185                                           spo->border_color->b);
 186         else spc->border_color = NULL;
 187
 188         spc->interlaced = spo->interlaced;
 189         spc->border = spo->border;
 190         spc->pixel_data = NULL;
 191     break;
 192     }
 193     copy->textures = orig->textures;
 194     if (orig->textures) {
 195         copy->texture = malloc(orig->textures * sizeof(Texture));
 196         memcpy(copy->texture, orig->texture, orig->textures * sizeof(Texture));
 197     } else copy->texture = NULL;
 198     copy->pixmap = None;
 199     copy->xftdraw = NULL;
 200     return copy;
 201 }
 202
 203 void appearance_free(Appearance *a)
 204 {
 205     PlanarSurface *p;
 206     if (a->pixmap != None) XFreePixmap(ob_display, a->pixmap);
 207     if (a->xftdraw != NULL) XftDrawDestroy(a->xftdraw);
 208     if (a->textures)
 209         g_free(a->texture);
 210     if (a->surface.type == Surface_Planar) {
 211         p = &a->surface.data.planar;
 212         if (p->primary != NULL) color_free(p->primary);
 213         if (p->secondary != NULL) color_free(p->secondary);
 214         if (p->border_color != NULL) color_free(p->border_color);
 215     }
 216     g_free(a);
 217 }