nilix/openbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
openbox/render/render.c

494 lines
15 KiB
C
Raw Blame History

#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 "theme.h"
#include "kernel/openbox.h"
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
int render_depth;
XVisualInfo render_visual_info;
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;
int render_red_mask, render_green_mask, render_blue_mask;
void render_startup(void)
{
render_depth = DefaultDepth(ob_display, ob_screen);
render_visual = DefaultVisual(ob_display, ob_screen);
render_colormap = DefaultColormap(ob_display, ob_screen);
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 */
render_red_mask = red_mask = timage->red_mask;
render_green_mask = green_mask = timage->green_mask;
render_blue_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 = pseudo_ncolors();
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 paint(Window win, Appearance *l, int w, int h)
{
int i, transferred = 0, sw;
pixel32 *source, *dest;
Pixmap oldp;
Rect tarea; /* area in which to draw textures */
gboolean resized;
if (w <= 0 || h <= 0) return;
resized = (l->w != w || l->h != h);
if (resized) {
oldp = l->pixmap; /* save to free after changing the visible pixmap */
l->pixmap = XCreatePixmap(ob_display, ob_root, w, h, render_depth);
} else
oldp = None;
g_assert(l->pixmap != None);
l->w = w;
l->h = h;
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.pixel_data);
l->surface.pixel_data = g_new(pixel32, w * h);
if (l->surface.grad == Background_ParentRelative) {
g_assert (l->surface.parent);
g_assert (l->surface.parent->w);
sw = l->surface.parent->w;
source = (l->surface.parent->surface.pixel_data + l->surface.parentx +
sw * l->surface.parenty);
dest = l->surface.pixel_data;
for (i = 0; i < h; i++, source += sw, dest += w) {
memcpy(dest, source, w * sizeof(pixel32));
}
}
else if (l->surface.grad == Background_Solid)
gradient_solid(l, 0, 0, w, h);
else gradient_render(&l->surface, w, h);
RECT_SET(tarea, 0, 0, w, h);
if (l->surface.grad != Background_ParentRelative) {
if (l->surface.relief != Flat) {
switch (l->surface.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.border) {
tarea.x += 1; tarea.y += 1;
tarea.width -= 2; tarea.height -= 2;
}
}
for (i = 0; i < l->textures; i++) {
switch (l->texture[i].type) {
case NoTexture:
break;
case Text:
if (!transferred) {
transferred = 1;
if (l->surface.grad != Background_Solid)
pixel32_to_pixmap(l->surface.pixel_data,
l->pixmap, 0, 0, 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.grad != Background_Solid)
pixel32_to_pixmap(l->surface.pixel_data,
l->pixmap, 0, 0, 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.pixel_data,
&l->texture[i].data.rgba, &tarea);
break;
}
}
if (!transferred) {
transferred = 1;
if (l->surface.grad != Background_Solid)
pixel32_to_pixmap(l->surface.pixel_data, l->pixmap, 0, 0, w, h);
}
XSetWindowBackgroundPixmap(ob_display, win, l->pixmap);
XClearWindow(ob_display, win);
if (oldp) XFreePixmap(ob_display, oldp);
}
void render_shutdown(void)
{
}
Appearance *appearance_new(int numtex)
{
Surface *p;
Appearance *out;
out = g_new(Appearance, 1);
out->textures = numtex;
out->xftdraw = NULL;
if (numtex) out->texture = g_new0(Texture, numtex);
else out->texture = NULL;
out->pixmap = None;
out->w = out->h = 0;
p = &out->surface;
p->primary = NULL;
p->secondary = NULL;
p->border_color = NULL;
p->bevel_dark = NULL;
p->bevel_light = NULL;
p->pixel_data = NULL;
return out;
}
Appearance *appearance_copy(Appearance *orig)
{
Surface *spo, *spc;
Appearance *copy = g_new(Appearance, 1);
spo = &(orig->surface);
spc = &(copy->surface);
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;
if (spo->bevel_dark != NULL)
spc->bevel_dark = color_new(spo->bevel_dark->r,
spo->bevel_dark->g,
spo->bevel_dark->b);
else spc->bevel_dark = NULL;
if (spo->bevel_light != NULL)
spc->bevel_light = color_new(spo->bevel_light->r,
spo->bevel_light->g,
spo->bevel_light->b);
else spc->bevel_light = NULL;
spc->interlaced = spo->interlaced;
spc->border = spo->border;
spc->pixel_data = NULL;
copy->textures = orig->textures;
copy->texture = g_memdup(orig->texture, orig->textures * sizeof(Texture));
copy->pixmap = None;
copy->xftdraw = NULL;
copy->w = copy->h = 0;
return copy;
}
void appearance_free(Appearance *a)
{
if (a) {
Surface *p;
if (a->pixmap != None) XFreePixmap(ob_display, a->pixmap);
if (a->xftdraw != NULL) XftDrawDestroy(a->xftdraw);
if (a->textures)
g_free(a->texture);
p = &a->surface;
color_free(p->primary);
color_free(p->secondary);
color_free(p->border_color);
color_free(p->bevel_dark);
color_free(p->bevel_light);
g_free(p->pixel_data);
g_free(a);
}
}
void pixel32_to_pixmap(pixel32 *in, Pixmap out, int x, int y, int w, int h)
{
pixel32 *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 = render_endian;
/* this malloc is a complete waste of time on normal 32bpp
as reduce_depth just sets im->data = data and returns
*/
scratch = g_new(pixel32, im->width * im->height);
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);
g_free(scratch);
}
void appearance_minsize(Appearance *l, int *w, int *h)
{
int i;
int m;
*w = *h = 0;
for (i = 0; i < l->textures; ++i) {
switch (l->texture[i].type) {
case Bitmask:
*w = MAX(*w, l->texture[i].data.mask.mask->w);
*h = MAX(*h, l->texture[i].data.mask.mask->h);
break;
case Text:
m = 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);
*w = MAX(*w, m);
m = font_height(l->texture[i].data.text.font,
l->texture[i].data.text.shadow,
l->texture[i].data.text.offset);
*h += MAX(*h, m);
break;
case RGBA:
*w += MAX(*w, l->texture[i].data.rgba.width);
*h += MAX(*h, l->texture[i].data.rgba.height);
break;
case NoTexture:
break;
}
}
if (l->surface.relief != Flat) {
switch (l->surface.bevel) {
case Bevel1:
*w += 2;
*h += 2;
break;
case Bevel2:
*w += 4;
*h += 4;
break;
}
} else if (l->surface.border) {
*w += 2;
*h += 2;
}
if (*w < 1) *w = 1;
if (*h < 1) *h = 1;
}
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;
}
Reference in a new issue View git blame Copy permalink