gtk2/gdk/win32/gdkimage-win32.c
Tor Lillqvist 0f5c8e857c New function. Guesstimate what Unicode subranges a font covers based on
1999-12-06  Tor Lillqvist  <tml@iki.fi>

* gdk/win32/gdkfont-win32.c (check_unicode_subranges): New
function. Guesstimate what Unicode subranges a font covers based
on the codepages. Windows tells us it covers. This will hopefully
help those Windows versions or fonts that don't give us any useful
Unicode subrange information with GetTextCharsetInfo. Call this
function in gdk_font_load_internal.

* gdk/win32/{gdkdnd,gdkimage,gdkpixmap,gdkprivate}-win32.c: Misc
minor changes.
1999-12-05 23:26:46 +00:00

762 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"
#include "gdkwin32.h"
static void gdk_win32_image_destroy (GdkImage *image);
static void gdk_image_put (GdkImage *image,
GdkDrawable *drawable,
GdkGC *gc,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height);
static GdkImageClass image_class = {
gdk_win32_image_destroy,
gdk_image_put
};
static GList *image_list = NULL;
void
gdk_image_exit (void)
{
GdkImage *image;
while (image_list)
{
image = image_list->data;
gdk_win32_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;
GdkImagePrivateWin32 *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 (GdkImagePrivateWin32, 1);
image = (GdkImage *) private;
private->base.ref_count = 1;
private->base.klass = &image_class;
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;
GdkImagePrivateWin32 *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 (GdkImagePrivateWin32, 1);
image = (GdkImage *) private;
private->base.ref_count = 1;
private->base.klass = &image_class;
image->type = type;
image->visual = visual;
image->width = width;
image->height = height;
image->depth = depth;
xvisual = ((GdkVisualPrivate*) visual)->xvisual;
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;
GdkImagePrivateWin32 *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);
if (GDK_DRAWABLE_DESTROYED (window))
return NULL;
GDK_NOTE (MISC, g_print ("gdk_image_get: %#x %dx%d@+%d+%d\n",
GDK_DRAWABLE_XID (window), width, height, x, y));
private = g_new (GdkImagePrivateWin32, 1);
image = (GdkImage*) private;
private->base.ref_count = 1;
private->base.klass = &image_class;
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 (GDK_DRAWABLE_TYPE (window) == GDK_DRAWABLE_PIXMAP)
{
if ((hdc = CreateCompatibleDC (NULL)) == NULL)
{
g_warning ("gdk_image_get: CreateCompatibleDC #1 failed");
g_free (image);
return NULL;
}
if ((oldbitmap1 = SelectObject (hdc, GDK_DRAWABLE_XID (window))) == NULL)
{
g_warning ("gdk_image_get: SelectObject #1 failed");
DeleteDC (hdc);
g_free (image);
return NULL;
}
GetObject (GDK_DRAWABLE_XID (window), 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 (GDK_DRAWABLE_XID (window))) == 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 (GDK_DRAWABLE_TYPE (window) == GDK_DRAWABLE_PIXMAP)
{
SelectObject (hdc, oldbitmap1);
DeleteDC (hdc);
}
else
{
ReleaseDC (GDK_DRAWABLE_XID (window), 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 (GDK_DRAWABLE_TYPE (window) == GDK_DRAWABLE_PIXMAP)
{
SelectObject (hdc, oldbitmap1);
DeleteDC (hdc);
}
else
{
ReleaseDC (GDK_DRAWABLE_XID (window), 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 (GDK_DRAWABLE_TYPE (window) == GDK_DRAWABLE_PIXMAP)
{
SelectObject (hdc, oldbitmap1);
DeleteDC (hdc);
}
else
{
ReleaseDC (GDK_DRAWABLE_XID (window), 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 (GDK_DRAWABLE_TYPE (window) == GDK_DRAWABLE_PIXMAP)
{
SelectObject (hdc, oldbitmap1);
DeleteDC (hdc);
}
else
{
ReleaseDC (GDK_DRAWABLE_XID (window), 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 (GDK_DRAWABLE_TYPE (window) == GDK_DRAWABLE_PIXMAP)
{
SelectObject (hdc, oldbitmap1);
DeleteDC (hdc);
}
else
{
ReleaseDC (GDK_DRAWABLE_XID (window), 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;
g_return_val_if_fail (image != NULL, 0);
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)
{
g_return_if_fail (image != NULL);
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);
}
}
}
static void
gdk_win32_image_destroy (GdkImage *image)
{
GdkImagePrivateWin32 *private;
g_return_if_fail (image != NULL);
private = (GdkImagePrivateWin32 *) image;
GDK_NOTE (MISC, g_print ("gdk_win32_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_win32_image_destroy: DeleteObject failed");
break;
default:
g_assert_not_reached ();
}
g_free (image);
}
static void
gdk_image_put (GdkImage *image,
GdkDrawable *drawable,
GdkGC *gc,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkDrawablePrivate *drawable_private;
GdkImagePrivateWin32 *image_private;
GdkGCPrivate *gc_private;
HDC hdc;
GdkColormapPrivateWin32 *colormap_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (image != NULL);
g_return_if_fail (gc != NULL);
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
image_private = (GdkImagePrivateWin32 *) image;
drawable_private = (GdkDrawablePrivate *) drawable;
gc_private = (GdkGCPrivate *) gc;
/* The image can in fact be "shared", so don't test */
hdc = gdk_gc_predraw (drawable, gc_private);
colormap_private = (GdkColormapPrivateWin32 *) 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: 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: CreateCompatibleDC failed");
gdk_gc_postdraw (drawable, gc_private);
return;
}
if ((oldbitmap = SelectObject (memdc, image_private->ximage)) == NULL)
{
g_warning ("gdk_image_put: SelectObject #1 failed");
gdk_gc_postdraw (drawable, gc_private);
return;
}
if (!BitBlt (hdc, xdest, ydest, width, height,
memdc, xsrc, ysrc, SRCCOPY))
g_warning ("gdk_image_put: BitBlt failed");
if (SelectObject (memdc, oldbitmap) == NULL)
g_warning ("gdk_image_put_normal: SelectObject #2 failed");
if (!DeleteDC (memdc))
g_warning ("gdk_image_put: DeleteDC failed");
}
gdk_gc_postdraw (drawable, gc_private);
}