mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-18 17:30:10 +00:00
c50941c82d
1999-10-03 Tor Lillqvist <tml@iki.fi> * gdk/gdkimage.h gdk/gdkpixmap.h: Change GDK_WINDOWING_WIN32 usage to #ifdef also here. * gdk/win32/*.h gdk/win32/*.c: Make corresponding changes as those Owen did to the X11 backend. * gdk/win32/gdkdraw.c (gdk_draw_pixmap): Fix it again, don't use ScrollWindowEx when blitting inside a window, it can't be correct in the general case. * gdk/win32/gdkevents.c: Don't handle WM_SIZING, handling WM_GETMINMAXINFO is easier. * gdk/win32/gdkimage.c (gdk_image_new): Create new image with depth equal to the bitspixel value, not the visual's depth. * gdk/win32/gdkvisual.c (gdk_visual_init): Set the visual's depth to 24 even if the bitspixel value is 32. * gdk/gdkrgb.c (gdk_rgb_select_conv): After the above change, no need to check for depth==32 when bpp==32, depth will always be 24.
761 lines
19 KiB
C
761 lines
19 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdk.h" /* For gdk_error_trap_* / gdk_flush_* */
|
|
#include "gdkimage.h"
|
|
#include "gdkprivate.h"
|
|
|
|
static void gdk_image_put_normal (GdkDrawable *drawable,
|
|
GdkGC *gc,
|
|
GdkImage *image,
|
|
gint xsrc,
|
|
gint ysrc,
|
|
gint xdest,
|
|
gint ydest,
|
|
gint width,
|
|
gint height);
|
|
static GList *image_list = NULL;
|
|
|
|
void
|
|
gdk_image_exit (void)
|
|
{
|
|
GdkImage *image;
|
|
|
|
while (image_list)
|
|
{
|
|
image = image_list->data;
|
|
gdk_image_destroy (image);
|
|
}
|
|
}
|
|
|
|
GdkImage *
|
|
gdk_image_new_bitmap (GdkVisual *visual, gpointer data, gint w, gint h)
|
|
/*
|
|
* Desc: create a new bitmap image
|
|
*/
|
|
{
|
|
Visual *xvisual;
|
|
GdkImage *image;
|
|
GdkImagePrivate *private;
|
|
struct {
|
|
BITMAPINFOHEADER bmiHeader;
|
|
union {
|
|
WORD bmiIndices[2];
|
|
RGBQUAD bmiColors[2];
|
|
} u;
|
|
} bmi;
|
|
char *bits;
|
|
int bpl = (w-1)/8 + 1;
|
|
int bpl32 = ((w-1)/32 + 1)*4;
|
|
|
|
private = g_new(GdkImagePrivate, 1);
|
|
image = (GdkImage *) private;
|
|
private->image_put = gdk_image_put_normal;
|
|
image->type = GDK_IMAGE_SHARED;
|
|
image->visual = visual;
|
|
image->width = w;
|
|
image->height = h;
|
|
image->depth = 1;
|
|
xvisual = ((GdkVisualPrivate*) visual)->xvisual;
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_image_new_bitmap: %dx%d\n", w, h));
|
|
|
|
bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
|
|
bmi.bmiHeader.biWidth = w;
|
|
bmi.bmiHeader.biHeight = -h;
|
|
bmi.bmiHeader.biPlanes = 1;
|
|
bmi.bmiHeader.biBitCount = 1;
|
|
bmi.bmiHeader.biCompression = BI_RGB;
|
|
bmi.bmiHeader.biSizeImage = 0;
|
|
bmi.bmiHeader.biXPelsPerMeter =
|
|
bmi.bmiHeader.biYPelsPerMeter = 0;
|
|
bmi.bmiHeader.biClrUsed = 0;
|
|
bmi.bmiHeader.biClrImportant = 0;
|
|
|
|
bmi.u.bmiColors[0].rgbBlue =
|
|
bmi.u.bmiColors[0].rgbGreen =
|
|
bmi.u.bmiColors[0].rgbRed = 0x00;
|
|
bmi.u.bmiColors[0].rgbReserved = 0x00;
|
|
|
|
bmi.u.bmiColors[1].rgbBlue =
|
|
bmi.u.bmiColors[1].rgbGreen =
|
|
bmi.u.bmiColors[1].rgbRed = 0xFF;
|
|
bmi.u.bmiColors[1].rgbReserved = 0x00;
|
|
|
|
private->ximage = CreateDIBSection (gdk_DC, (BITMAPINFO *) &bmi,
|
|
DIB_RGB_COLORS, &bits, NULL, 0);
|
|
if (bpl != bpl32)
|
|
{
|
|
/* Win32 expects scanlines in DIBs to be 32 bit aligned */
|
|
int i;
|
|
for (i = 0; i < h; i++)
|
|
memmove (bits + i*bpl32, ((char *) data) + i*bpl, bpl);
|
|
}
|
|
else
|
|
memmove (bits, data, bpl*h);
|
|
image->mem = bits;
|
|
image->bpl = bpl32;
|
|
image->byte_order = GDK_MSB_FIRST;
|
|
|
|
image->bpp = 1;
|
|
return(image);
|
|
} /* gdk_image_new_bitmap() */
|
|
|
|
void
|
|
gdk_image_init (void)
|
|
{
|
|
}
|
|
|
|
static GdkImage*
|
|
gdk_image_new_with_depth (GdkImageType type,
|
|
GdkVisual *visual,
|
|
gint width,
|
|
gint height,
|
|
gint depth)
|
|
{
|
|
GdkImage *image;
|
|
GdkImagePrivate *private;
|
|
Visual *xvisual;
|
|
struct {
|
|
BITMAPINFOHEADER bmiHeader;
|
|
union {
|
|
WORD bmiIndices[256];
|
|
DWORD bmiMasks[3];
|
|
RGBQUAD bmiColors[256];
|
|
} u;
|
|
} bmi;
|
|
UINT iUsage;
|
|
int i;
|
|
|
|
if (type == GDK_IMAGE_FASTEST || type == GDK_IMAGE_NORMAL)
|
|
type = GDK_IMAGE_SHARED;
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_image_new_with_depth: %dx%dx%d %s\n",
|
|
width, height, depth,
|
|
(type == GDK_IMAGE_SHARED ? "shared" :
|
|
(type == GDK_IMAGE_SHARED_PIXMAP ? "shared_pixmap" :
|
|
"???"))));
|
|
|
|
private = g_new (GdkImagePrivate, 1);
|
|
image = (GdkImage*) private;
|
|
|
|
private->image_put = NULL;
|
|
|
|
image->type = type;
|
|
image->visual = visual;
|
|
image->width = width;
|
|
image->height = height;
|
|
image->depth = depth;
|
|
|
|
xvisual = ((GdkVisualPrivate*) visual)->xvisual;
|
|
|
|
private->image_put = gdk_image_put_normal;
|
|
|
|
bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
|
|
bmi.bmiHeader.biWidth = width;
|
|
bmi.bmiHeader.biHeight = -height;
|
|
bmi.bmiHeader.biPlanes = 1;
|
|
if (depth == 15)
|
|
bmi.bmiHeader.biBitCount = 16;
|
|
else
|
|
bmi.bmiHeader.biBitCount = depth;
|
|
#if 1
|
|
if (depth == 16)
|
|
bmi.bmiHeader.biCompression = BI_BITFIELDS;
|
|
else
|
|
#endif
|
|
bmi.bmiHeader.biCompression = BI_RGB;
|
|
bmi.bmiHeader.biSizeImage = 0;
|
|
bmi.bmiHeader.biXPelsPerMeter =
|
|
bmi.bmiHeader.biYPelsPerMeter = 0;
|
|
bmi.bmiHeader.biClrUsed = 0;
|
|
bmi.bmiHeader.biClrImportant = 0;
|
|
|
|
if (image->visual->type == GDK_VISUAL_PSEUDO_COLOR)
|
|
{
|
|
iUsage = DIB_PAL_COLORS;
|
|
for (i = 0; i < 256; i++)
|
|
bmi.u.bmiIndices[i] = i;
|
|
}
|
|
else
|
|
{
|
|
if (depth == 1)
|
|
{
|
|
bmi.u.bmiColors[0].rgbBlue =
|
|
bmi.u.bmiColors[0].rgbGreen =
|
|
bmi.u.bmiColors[0].rgbRed = 0x00;
|
|
bmi.u.bmiColors[0].rgbReserved = 0x00;
|
|
|
|
bmi.u.bmiColors[1].rgbBlue =
|
|
bmi.u.bmiColors[1].rgbGreen =
|
|
bmi.u.bmiColors[1].rgbRed = 0xFF;
|
|
bmi.u.bmiColors[1].rgbReserved = 0x00;
|
|
|
|
}
|
|
#if 1
|
|
else if (depth == 16)
|
|
{
|
|
bmi.u.bmiMasks[0] = visual->red_mask;
|
|
bmi.u.bmiMasks[1] = visual->green_mask;
|
|
bmi.u.bmiMasks[2] = visual->blue_mask;
|
|
}
|
|
#endif
|
|
iUsage = DIB_RGB_COLORS;
|
|
}
|
|
|
|
private->ximage =
|
|
CreateDIBSection (gdk_DC, (BITMAPINFO *) &bmi, iUsage,
|
|
&image->mem, NULL, 0);
|
|
|
|
if (private->ximage == NULL)
|
|
{
|
|
g_warning ("gdk_image_new_with_depth: CreateDIBSection failed");
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
switch (depth)
|
|
{
|
|
case 1:
|
|
case 8:
|
|
image->bpp = 1;
|
|
break;
|
|
case 15:
|
|
case 16:
|
|
image->bpp = 2;
|
|
break;
|
|
case 24:
|
|
image->bpp = 3;
|
|
break;
|
|
case 32:
|
|
image->bpp = 4;
|
|
break;
|
|
default:
|
|
g_warning ("gdk_image_new_with_depth: depth = %d", depth);
|
|
g_assert_not_reached ();
|
|
}
|
|
image->byte_order = GDK_LSB_FIRST;
|
|
if (depth == 1)
|
|
image->bpl = ((width-1)/32 + 1)*4;
|
|
else
|
|
image->bpl = ((width*image->bpp - 1)/4 + 1)*4;
|
|
|
|
GDK_NOTE (MISC, g_print ("... = %#x mem = %#x, bpl = %d\n",
|
|
private->ximage, image->mem, image->bpl));
|
|
|
|
return image;
|
|
}
|
|
|
|
GdkImage*
|
|
gdk_image_new (GdkImageType type,
|
|
GdkVisual *visual,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkVisualPrivate *visual_private = (GdkVisualPrivate *) visual;
|
|
return gdk_image_new_with_depth (type, visual, width, height,
|
|
visual_private->xvisual->bitspixel);
|
|
}
|
|
|
|
GdkImage*
|
|
gdk_image_bitmap_new (GdkImageType type,
|
|
GdkVisual *visual,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
return gdk_image_new_with_depth (type, visual, width, height, 1);
|
|
}
|
|
|
|
GdkImage*
|
|
gdk_image_get (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkImage *image;
|
|
GdkImagePrivate *private;
|
|
GdkWindowPrivate *win_private;
|
|
HDC hdc, memdc;
|
|
struct {
|
|
BITMAPINFOHEADER bmiHeader;
|
|
union {
|
|
WORD bmiIndices[256];
|
|
DWORD bmiMasks[3];
|
|
RGBQUAD bmiColors[256];
|
|
} u;
|
|
} bmi;
|
|
HGDIOBJ oldbitmap1, oldbitmap2;
|
|
UINT iUsage;
|
|
BITMAP bm;
|
|
int i;
|
|
|
|
g_return_val_if_fail (window != NULL, NULL);
|
|
|
|
win_private = (GdkWindowPrivate *) window;
|
|
if (win_private->destroyed)
|
|
return NULL;
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_image_get: %#x %dx%d@+%d+%d\n",
|
|
win_private->xwindow, width, height, x, y));
|
|
|
|
private = g_new (GdkImagePrivate, 1);
|
|
image = (GdkImage*) private;
|
|
|
|
private->image_put = gdk_image_put_normal;
|
|
|
|
image->type = GDK_IMAGE_SHARED;
|
|
image->visual = gdk_window_get_visual (window);
|
|
image->width = width;
|
|
image->height = height;
|
|
|
|
/* This function is called both to blit from a window and from
|
|
* a pixmap.
|
|
*/
|
|
if (win_private->window_type == GDK_WINDOW_PIXMAP)
|
|
{
|
|
if ((hdc = CreateCompatibleDC (NULL)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_get: CreateCompatibleDC #1 failed");
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
if ((oldbitmap1 = SelectObject (hdc, win_private->xwindow)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_get: SelectObject #1 failed");
|
|
DeleteDC (hdc);
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
GetObject (win_private->xwindow, sizeof (BITMAP), &bm);
|
|
GDK_NOTE (MISC,
|
|
g_print ("gdk_image_get: bmWidth = %d, bmHeight = %d, bmWidthBytes = %d, bmBitsPixel = %d\n",
|
|
bm.bmWidth, bm.bmHeight, bm.bmWidthBytes, bm.bmBitsPixel));
|
|
image->depth = bm.bmBitsPixel;
|
|
if (image->depth <= 8)
|
|
{
|
|
iUsage = DIB_PAL_COLORS;
|
|
for (i = 0; i < 256; i++)
|
|
bmi.u.bmiIndices[i] = i;
|
|
}
|
|
else
|
|
iUsage = DIB_RGB_COLORS;
|
|
}
|
|
else
|
|
{
|
|
if ((hdc = GetDC (win_private->xwindow)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_get: GetDC failed");
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
image->depth = gdk_visual_get_system ()->depth;
|
|
if (image->visual->type == GDK_VISUAL_PSEUDO_COLOR)
|
|
{
|
|
iUsage = DIB_PAL_COLORS;
|
|
for (i = 0; i < 256; i++)
|
|
bmi.u.bmiIndices[i] = i;
|
|
}
|
|
else
|
|
iUsage = DIB_RGB_COLORS;
|
|
}
|
|
|
|
if ((memdc = CreateCompatibleDC (hdc)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_get: CreateCompatibleDC #2 failed");
|
|
if (win_private->window_type == GDK_WINDOW_PIXMAP)
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (win_private->xwindow, hdc);
|
|
}
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
|
|
bmi.bmiHeader.biWidth = width;
|
|
bmi.bmiHeader.biHeight = -height;
|
|
bmi.bmiHeader.biPlanes = 1;
|
|
bmi.bmiHeader.biBitCount = image->depth;
|
|
if (image->depth == 16)
|
|
{
|
|
bmi.bmiHeader.biCompression = BI_BITFIELDS;
|
|
if (image->visual == NULL)
|
|
{
|
|
/* XXX ??? Is it always this if depth==16 and a pixmap? Guess so. */
|
|
bmi.u.bmiMasks[0] = 0xf800;
|
|
bmi.u.bmiMasks[1] = 0x07e0;
|
|
bmi.u.bmiMasks[2] = 0x001f;
|
|
}
|
|
else
|
|
{
|
|
bmi.u.bmiMasks[0] = image->visual->red_mask;
|
|
bmi.u.bmiMasks[1] = image->visual->green_mask;
|
|
bmi.u.bmiMasks[2] = image->visual->blue_mask;
|
|
}
|
|
}
|
|
else
|
|
bmi.bmiHeader.biCompression = BI_RGB;
|
|
bmi.bmiHeader.biSizeImage = 0;
|
|
bmi.bmiHeader.biXPelsPerMeter =
|
|
bmi.bmiHeader.biYPelsPerMeter = 0;
|
|
bmi.bmiHeader.biClrUsed = 0;
|
|
bmi.bmiHeader.biClrImportant = 0;
|
|
|
|
if ((private->ximage =
|
|
CreateDIBSection (hdc, (BITMAPINFO *) &bmi, iUsage,
|
|
&image->mem, NULL, 0)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_get: CreateDIBSection failed");
|
|
DeleteDC (memdc);
|
|
if (win_private->window_type == GDK_WINDOW_PIXMAP)
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (win_private->xwindow, hdc);
|
|
}
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
if ((oldbitmap2 = SelectObject (memdc, private->ximage)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_get: SelectObject #2 failed");
|
|
DeleteObject (private->ximage);
|
|
DeleteDC (memdc);
|
|
if (win_private->window_type == GDK_WINDOW_PIXMAP)
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (win_private->xwindow, hdc);
|
|
}
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
if (!BitBlt (memdc, 0, 0, width, height, hdc, x, y, SRCCOPY))
|
|
{
|
|
g_warning ("gdk_image_get: BitBlt failed");
|
|
SelectObject (memdc, oldbitmap2);
|
|
DeleteObject (private->ximage);
|
|
DeleteDC (memdc);
|
|
if (win_private->window_type == GDK_WINDOW_PIXMAP)
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (win_private->xwindow, hdc);
|
|
}
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
if (SelectObject (memdc, oldbitmap2) == NULL)
|
|
g_warning ("gdk_image_get: SelectObject #3 failed");
|
|
|
|
if (!DeleteDC (memdc))
|
|
g_warning ("gdk_image_get: DeleteDC failed");
|
|
|
|
if (win_private->window_type == GDK_WINDOW_PIXMAP)
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (win_private->xwindow, hdc);
|
|
}
|
|
|
|
switch (image->depth)
|
|
{
|
|
case 1:
|
|
case 8:
|
|
image->bpp = 1;
|
|
break;
|
|
case 15:
|
|
case 16:
|
|
image->bpp = 2;
|
|
break;
|
|
case 24:
|
|
image->bpp = 3;
|
|
break;
|
|
case 32:
|
|
image->bpp = 4;
|
|
break;
|
|
default:
|
|
g_warning ("gdk_image_get: image->depth = %d", image->depth);
|
|
g_assert_not_reached ();
|
|
}
|
|
image->byte_order = GDK_LSB_FIRST;
|
|
if (image->depth == 1)
|
|
image->bpl = ((width - 1)/32 + 1)*4;
|
|
else
|
|
image->bpl = ((width*image->bpp - 1)/4 + 1)*4;
|
|
|
|
GDK_NOTE (MISC, g_print ("... = %#x mem = %#x, bpl = %d\n",
|
|
private->ximage, image->mem, image->bpl));
|
|
|
|
return image;
|
|
}
|
|
|
|
guint32
|
|
gdk_image_get_pixel (GdkImage *image,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
guint32 pixel;
|
|
GdkImagePrivate *private;
|
|
|
|
g_return_val_if_fail (image != NULL, 0);
|
|
|
|
private = (GdkImagePrivate *) image;
|
|
|
|
g_return_val_if_fail (x >= 0 && x < image->width
|
|
&& y >= 0 && y < image->height, 0);
|
|
|
|
if (image->depth == 1)
|
|
pixel = (((char *) image->mem)[y * image->bpl + (x >> 3)] & (1 << (7 - (x & 0x7)))) != 0;
|
|
else
|
|
{
|
|
guchar *pixelp = (guchar *) image->mem + y * image->bpl + x * image->bpp;
|
|
|
|
switch (image->bpp)
|
|
{
|
|
case 1:
|
|
pixel = *pixelp;
|
|
break;
|
|
|
|
/* Windows is always LSB, no need to check image->byte_order. */
|
|
case 2:
|
|
pixel = pixelp[0] | (pixelp[1] << 8);
|
|
break;
|
|
|
|
case 3:
|
|
pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16);
|
|
break;
|
|
|
|
case 4:
|
|
pixel = pixelp[0] | (pixelp[1] << 8) | (pixelp[2] << 16);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return pixel;
|
|
}
|
|
|
|
void
|
|
gdk_image_put_pixel (GdkImage *image,
|
|
gint x,
|
|
gint y,
|
|
guint32 pixel)
|
|
{
|
|
GdkImagePrivate *private;
|
|
|
|
g_return_if_fail (image != NULL);
|
|
|
|
private = (GdkImagePrivate *) image;
|
|
|
|
g_return_if_fail (x >= 0 && x < image->width && y >= 0 && y < image->height);
|
|
|
|
if (image->depth == 1)
|
|
if (pixel & 1)
|
|
((guchar *) image->mem)[y * image->bpl + (x >> 3)] |= (1 << (7 - (x & 0x7)));
|
|
else
|
|
((guchar *) image->mem)[y * image->bpl + (x >> 3)] &= ~(1 << (7 - (x & 0x7)));
|
|
else
|
|
{
|
|
guchar *pixelp = (guchar *) image->mem + y * image->bpl + x * image->bpp;
|
|
|
|
/* Windows is always LSB, no need to check image->byte_order. */
|
|
switch (image->bpp)
|
|
{
|
|
case 4:
|
|
pixelp[3] = 0;
|
|
case 3:
|
|
pixelp[2] = ((pixel >> 16) & 0xFF);
|
|
case 2:
|
|
pixelp[1] = ((pixel >> 8) & 0xFF);
|
|
case 1:
|
|
pixelp[0] = (pixel & 0xFF);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
gdk_image_destroy (GdkImage *image)
|
|
{
|
|
GdkImagePrivate *private;
|
|
|
|
g_return_if_fail (image != NULL);
|
|
|
|
private = (GdkImagePrivate*) image;
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_image_destroy: %#x%s\n",
|
|
private->ximage,
|
|
(image->type == GDK_IMAGE_SHARED_PIXMAP ?
|
|
" (shared pixmap)" : "")));
|
|
|
|
switch (image->type)
|
|
{
|
|
case GDK_IMAGE_SHARED_PIXMAP:
|
|
break; /* The Windows bitmap has already been
|
|
* (or will be) deleted when freeing
|
|
* the corresponding pixmap.
|
|
*/
|
|
|
|
case GDK_IMAGE_SHARED:
|
|
if (!DeleteObject (private->ximage))
|
|
g_warning ("gdk_image_destroy: DeleteObject failed");
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
g_free (image);
|
|
}
|
|
|
|
static void
|
|
gdk_image_put_normal (GdkDrawable *drawable,
|
|
GdkGC *gc,
|
|
GdkImage *image,
|
|
gint xsrc,
|
|
gint ysrc,
|
|
gint xdest,
|
|
gint ydest,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkWindowPrivate *drawable_private;
|
|
GdkImagePrivate *image_private;
|
|
GdkGCPrivate *gc_private;
|
|
HDC hdc;
|
|
GdkColormapPrivate *colormap_private;
|
|
|
|
g_return_if_fail (drawable != NULL);
|
|
g_return_if_fail (image != NULL);
|
|
g_return_if_fail (gc != NULL);
|
|
|
|
drawable_private = (GdkWindowPrivate*) drawable;
|
|
if (drawable_private->destroyed)
|
|
return;
|
|
image_private = (GdkImagePrivate*) image;
|
|
gc_private = (GdkGCPrivate*) gc;
|
|
|
|
/* The image can in fact be "shared", so don't test */
|
|
|
|
hdc = gdk_gc_predraw (drawable_private, gc_private);
|
|
colormap_private = (GdkColormapPrivate *) drawable_private->colormap;
|
|
if (colormap_private && colormap_private->xcolormap->rc_palette)
|
|
{
|
|
DIBSECTION ds;
|
|
static struct {
|
|
BITMAPINFOHEADER bmiHeader;
|
|
WORD bmiIndices[256];
|
|
} bmi;
|
|
static gboolean bmi_inited = FALSE;
|
|
int i;
|
|
|
|
if (!bmi_inited)
|
|
{
|
|
for (i = 0; i < 256; i++)
|
|
bmi.bmiIndices[i] = i;
|
|
bmi_inited = TRUE;
|
|
}
|
|
|
|
if (GetObject (image_private->ximage, sizeof (DIBSECTION),
|
|
&ds) != sizeof (DIBSECTION))
|
|
{
|
|
g_warning ("gdk_image_put_normal: GetObject failed");
|
|
}
|
|
#if 0
|
|
g_print("xdest = %d, ydest = %d, xsrc = %d, ysrc = %d, width = %d, height = %d\n",
|
|
xdest, ydest, xsrc, ysrc, width, height);
|
|
g_print("bmWidth = %d, bmHeight = %d, bmBitsPixel = %d, bmBits = %p\n",
|
|
ds.dsBm.bmWidth, ds.dsBm.bmHeight, ds.dsBm.bmBitsPixel, ds.dsBm.bmBits);
|
|
g_print("biWidth = %d, biHeight = %d, biBitCount = %d, biClrUsed = %d\n",
|
|
ds.dsBmih.biWidth, ds.dsBmih.biHeight, ds.dsBmih.biBitCount, ds.dsBmih.biClrUsed);
|
|
#endif
|
|
bmi.bmiHeader = ds.dsBmih;
|
|
/* I have spent hours on getting the parameters to
|
|
* SetDIBitsToDevice right. I wonder what drugs the guys in
|
|
* Redmond were on when they designed this API.
|
|
*/
|
|
if (SetDIBitsToDevice (hdc,
|
|
xdest, ydest,
|
|
width, height,
|
|
xsrc, (-ds.dsBmih.biHeight)-height-ysrc,
|
|
0, -ds.dsBmih.biHeight,
|
|
ds.dsBm.bmBits,
|
|
(CONST BITMAPINFO *) &bmi,
|
|
DIB_PAL_COLORS) == 0)
|
|
g_warning ("SetDIBitsToDevice failed");
|
|
}
|
|
else
|
|
{
|
|
HDC memdc;
|
|
HGDIOBJ oldbitmap;
|
|
|
|
if ((memdc = CreateCompatibleDC (hdc)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_put_normal: CreateCompatibleDC failed");
|
|
gdk_gc_postdraw (drawable_private, gc_private);
|
|
return;
|
|
}
|
|
|
|
if ((oldbitmap = SelectObject (memdc, image_private->ximage)) == NULL)
|
|
{
|
|
g_warning ("gdk_image_put_normal: SelectObject #1 failed");
|
|
gdk_gc_postdraw (drawable_private, gc_private);
|
|
return;
|
|
}
|
|
if (!BitBlt (hdc, xdest, ydest, width, height,
|
|
memdc, xsrc, ysrc, SRCCOPY))
|
|
g_warning ("gdk_image_put_normal: BitBlt failed");
|
|
|
|
if (SelectObject (memdc, oldbitmap) == NULL)
|
|
g_warning ("gdk_image_put_normal: SelectObject #2 failed");
|
|
|
|
if (!DeleteDC (memdc))
|
|
g_warning ("gdk_image_put_normal: DeleteDC failed");
|
|
}
|
|
gdk_gc_postdraw (drawable_private, gc_private);
|
|
}
|