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a2d1299475
Fri Feb 2 17:16:09 2001 Owen Taylor <otaylor@redhat.com> * gdk/x11/gdkcolor-x11.c (gdk_colormap_sync): Make gdk_colormap_sync private since it was never exported in a header file. * gdk/x11/gdkcolor-x11.c (gdk_colormap_new): Fill in colormap->colors[] for StaticGray, StaticColor colormaps. * gdk/gdkpixbuf-drawable.c: Fix problems where image->bpp was being used as if it was image->bits_per_pixel. * gdk/gdkimage.h, gdk/x11/gdkimage-x11.c: Save the bits-per-pixel for the image in the GdkImage structure since it isn't reconstructable, and we need it to handle packed types * gdk/win32/gdkimage-win32.c: Set image->bits_per_pixel. (I'm making the assumption that on Win32 image->bits_per_pixel == image->depth, always. * gdk/linux-fb/gdkimage-fb.c: Set image->bits_per_pixel. * gdk/gdkrgb.c (gdk_rgb_select_conv): Exit with an informative warning message if no converter can be found.
675 lines
16 KiB
C
675 lines
16 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gdkimage.h"
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#include "gdkpixmap.h"
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#include "gdkinternals.h"
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#include "gdkprivate-win32.h"
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#include "gdkdrawable-win32.h"
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#include "gdkwindow-win32.h"
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#include "gdkpixmap-win32.h"
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static GList *image_list = NULL;
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static gpointer parent_class = NULL;
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static void gdk_win32_image_destroy (GdkImage *image);
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static void gdk_image_init (GdkImage *image);
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static void gdk_image_class_init (GdkImageClass *klass);
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static void gdk_image_finalize (GObject *object);
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GType
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gdk_image_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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{
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static const GTypeInfo object_info =
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{
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sizeof (GdkImageClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_image_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkImage),
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0, /* n_preallocs */
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(GInstanceInitFunc) gdk_image_init,
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};
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object_type = g_type_register_static (G_TYPE_OBJECT,
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"GdkImage",
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&object_info, 0);
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}
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return object_type;
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}
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static void
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gdk_image_init (GdkImage *image)
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{
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image->windowing_data = g_new0 (GdkImagePrivateWin32, 1);
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}
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static void
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gdk_image_class_init (GdkImageClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_image_finalize;
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}
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static void
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gdk_image_finalize (GObject *object)
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{
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GdkImage *image = GDK_IMAGE (object);
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gdk_win32_image_destroy (image);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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void
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gdk_image_exit (void)
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{
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GdkImage *image;
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while (image_list)
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{
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image = image_list->data;
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gdk_win32_image_destroy (image);
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}
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}
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GdkImage *
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gdk_image_new_bitmap (GdkVisual *visual,
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gpointer data,
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gint w,
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gint h)
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/*
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* Desc: create a new bitmap image
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*/
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{
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Visual *xvisual;
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GdkImage *image;
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GdkImagePrivateWin32 *private;
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struct {
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BITMAPINFOHEADER bmiHeader;
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union {
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WORD bmiIndices[2];
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RGBQUAD bmiColors[2];
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} u;
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} bmi;
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char *bits;
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int bpl = (w-1)/8 + 1;
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int bpl32 = ((w-1)/32 + 1)*4;
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image = g_object_new (gdk_image_get_type (), NULL);
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private = IMAGE_PRIVATE_DATA (image);
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image->type = GDK_IMAGE_SHARED;
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image->visual = visual;
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image->width = w;
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image->height = h;
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image->depth = 1;
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xvisual = ((GdkVisualPrivate*) visual)->xvisual;
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GDK_NOTE (MISC, g_print ("gdk_image_new_bitmap: %dx%d\n", w, h));
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bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
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bmi.bmiHeader.biWidth = w;
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bmi.bmiHeader.biHeight = -h;
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bmi.bmiHeader.biPlanes = 1;
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bmi.bmiHeader.biBitCount = 1;
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bmi.bmiHeader.biCompression = BI_RGB;
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bmi.bmiHeader.biSizeImage = 0;
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bmi.bmiHeader.biXPelsPerMeter =
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bmi.bmiHeader.biYPelsPerMeter = 0;
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bmi.bmiHeader.biClrUsed = 0;
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bmi.bmiHeader.biClrImportant = 0;
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bmi.u.bmiColors[0].rgbBlue =
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bmi.u.bmiColors[0].rgbGreen =
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bmi.u.bmiColors[0].rgbRed = 0x00;
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bmi.u.bmiColors[0].rgbReserved = 0x00;
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bmi.u.bmiColors[1].rgbBlue =
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bmi.u.bmiColors[1].rgbGreen =
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bmi.u.bmiColors[1].rgbRed = 0xFF;
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bmi.u.bmiColors[1].rgbReserved = 0x00;
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private->hbitmap = CreateDIBSection (gdk_display_hdc, (BITMAPINFO *) &bmi,
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DIB_RGB_COLORS, &bits, NULL, 0);
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if (bpl != bpl32)
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{
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/* Win32 expects scanlines in DIBs to be 32 bit aligned */
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int i;
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for (i = 0; i < h; i++)
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memmove (bits + i*bpl32, ((char *) data) + i*bpl, bpl);
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}
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else
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memmove (bits, data, bpl*h);
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image->mem = bits;
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image->bpl = bpl32;
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image->byte_order = GDK_MSB_FIRST;
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image->bits_per_pixel = 1;
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image->bpp = 1;
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return(image);
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} /* gdk_image_new_bitmap() */
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void
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_gdk_windowing_image_init (void)
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{
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/* Nothing needed AFAIK */
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}
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GdkImage*
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gdk_image_new (GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height)
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{
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GdkImage *image;
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GdkImagePrivateWin32 *private;
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Visual *xvisual;
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struct {
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BITMAPINFOHEADER bmiHeader;
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union {
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WORD bmiIndices[256];
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DWORD bmiMasks[3];
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RGBQUAD bmiColors[256];
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} u;
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} bmi;
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UINT iUsage;
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int i;
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if (type == GDK_IMAGE_FASTEST || type == GDK_IMAGE_NORMAL)
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type = GDK_IMAGE_SHARED;
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GDK_NOTE (MISC, g_print ("gdk_image_new: %dx%d %s\n",
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width, height,
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(type == GDK_IMAGE_SHARED ? "shared" :
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"???")));
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image = g_object_new (gdk_image_get_type (), NULL);
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private = IMAGE_PRIVATE_DATA (image);
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image->type = type;
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image->visual = visual;
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image->width = width;
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image->height = height;
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image->depth = visual->depth;
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xvisual = ((GdkVisualPrivate*) visual)->xvisual;
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bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
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bmi.bmiHeader.biWidth = width;
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bmi.bmiHeader.biHeight = -height;
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bmi.bmiHeader.biPlanes = 1;
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if (image->depth == 15)
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bmi.bmiHeader.biBitCount = 16;
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else
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bmi.bmiHeader.biBitCount = image->depth;
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if (image->depth == 16)
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bmi.bmiHeader.biCompression = BI_BITFIELDS;
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else
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bmi.bmiHeader.biCompression = BI_RGB;
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bmi.bmiHeader.biSizeImage = 0;
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bmi.bmiHeader.biXPelsPerMeter =
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bmi.bmiHeader.biYPelsPerMeter = 0;
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bmi.bmiHeader.biClrUsed = 0;
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bmi.bmiHeader.biClrImportant = 0;
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if (image->visual->type == GDK_VISUAL_PSEUDO_COLOR)
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{
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iUsage = DIB_PAL_COLORS;
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for (i = 0; i < 256; i++)
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bmi.u.bmiIndices[i] = i;
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}
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else
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{
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iUsage = DIB_RGB_COLORS;
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if (image->depth == 1)
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{
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bmi.u.bmiColors[0].rgbBlue =
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bmi.u.bmiColors[0].rgbGreen =
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bmi.u.bmiColors[0].rgbRed = 0x00;
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bmi.u.bmiColors[0].rgbReserved = 0x00;
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bmi.u.bmiColors[1].rgbBlue =
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bmi.u.bmiColors[1].rgbGreen =
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bmi.u.bmiColors[1].rgbRed = 0xFF;
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bmi.u.bmiColors[1].rgbReserved = 0x00;
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}
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else if (image->depth == 16)
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{
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bmi.u.bmiMasks[0] = visual->red_mask;
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bmi.u.bmiMasks[1] = visual->green_mask;
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bmi.u.bmiMasks[2] = visual->blue_mask;
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}
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}
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private->hbitmap = CreateDIBSection (gdk_display_hdc, (BITMAPINFO *) &bmi,
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iUsage, &image->mem, NULL, 0);
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if (private->hbitmap == NULL)
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{
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WIN32_GDI_FAILED ("CreateDIBSection");
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g_free (image);
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return NULL;
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}
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switch (image->depth)
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{
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case 1:
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case 8:
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image->bpp = 1;
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break;
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case 15:
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case 16:
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image->bpp = 2;
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break;
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case 24:
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image->bpp = 3;
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break;
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case 32:
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image->bpp = 4;
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break;
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default:
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g_warning ("gdk_image_new: depth = %d", image->depth);
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g_assert_not_reached ();
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}
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image->bits_per_pixel = image->depth;
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image->byte_order = GDK_LSB_FIRST;
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if (image->depth == 1)
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image->bpl = ((width-1)/32 + 1)*4;
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else
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image->bpl = ((width*image->bpp - 1)/4 + 1)*4;
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GDK_NOTE (MISC, g_print ("... = %#x mem = %p, bpl = %d\n",
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(guint) private->hbitmap, image->mem, image->bpl));
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return image;
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}
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GdkImage*
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_gdk_win32_get_image (GdkDrawable *drawable,
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gint x,
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gint y,
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gint width,
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gint height)
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{
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GdkImage *image;
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GdkImagePrivateWin32 *private;
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GdkDrawableImplWin32 *impl;
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HDC hdc, memdc;
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struct {
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BITMAPINFOHEADER bmiHeader;
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union {
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WORD bmiIndices[256];
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DWORD bmiMasks[3];
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RGBQUAD bmiColors[256];
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} u;
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} bmi;
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HGDIOBJ oldbitmap1, oldbitmap2;
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UINT iUsage;
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BITMAP bm;
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int i;
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g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable), NULL);
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GDK_NOTE (MISC, g_print ("_gdk_win32_get_image: %#x %dx%d@+%d+%d\n",
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(guint) GDK_DRAWABLE_HANDLE (drawable),
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width, height, x, y));
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impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);
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image = g_object_new (gdk_image_get_type (), NULL);
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private = IMAGE_PRIVATE_DATA (image);
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image->type = GDK_IMAGE_SHARED;
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image->visual = gdk_drawable_get_visual (drawable);
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image->width = width;
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image->height = height;
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/* This function is called both to blit from a window and from
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* a pixmap.
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*/
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if (GDK_IS_PIXMAP_IMPL_WIN32 (drawable))
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{
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if ((hdc = CreateCompatibleDC (NULL)) == NULL)
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{
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WIN32_GDI_FAILED ("CreateCompatibleDC");
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g_free (image);
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return NULL;
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}
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if ((oldbitmap1 = SelectObject (hdc, impl->handle)) == NULL)
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{
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WIN32_GDI_FAILED ("SelectObject");
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DeleteDC (hdc);
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g_free (image);
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return NULL;
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}
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GetObject (impl->handle, sizeof (BITMAP), &bm);
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GDK_NOTE (MISC,
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g_print ("gdk_image_get: bmWidth:%ld bmHeight:%ld bmWidthBytes:%ld bmBitsPixel:%d\n",
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bm.bmWidth, bm.bmHeight, bm.bmWidthBytes, bm.bmBitsPixel));
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image->depth = bm.bmBitsPixel;
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if (image->depth <= 8)
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{
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iUsage = DIB_PAL_COLORS;
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for (i = 0; i < 256; i++)
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bmi.u.bmiIndices[i] = i;
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}
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else
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iUsage = DIB_RGB_COLORS;
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}
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else
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{
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if ((hdc = GetDC (impl->handle)) == NULL)
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{
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WIN32_GDI_FAILED ("GetDC");
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g_free (image);
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return NULL;
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}
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image->depth = gdk_visual_get_system ()->depth;
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if (image->visual->type == GDK_VISUAL_PSEUDO_COLOR)
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{
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iUsage = DIB_PAL_COLORS;
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for (i = 0; i < 256; i++)
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bmi.u.bmiIndices[i] = i;
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}
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else
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iUsage = DIB_RGB_COLORS;
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}
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if ((memdc = CreateCompatibleDC (hdc)) == NULL)
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{
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WIN32_GDI_FAILED ("CreateCompatibleDC");
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if (GDK_IS_PIXMAP (drawable))
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{
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SelectObject (hdc, oldbitmap1);
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DeleteDC (hdc);
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}
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else
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{
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ReleaseDC (impl->handle, hdc);
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}
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g_free (image);
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return NULL;
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}
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bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
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bmi.bmiHeader.biWidth = width;
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bmi.bmiHeader.biHeight = -height;
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bmi.bmiHeader.biPlanes = 1;
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bmi.bmiHeader.biBitCount = image->depth;
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if (image->depth == 16)
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{
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bmi.bmiHeader.biCompression = BI_BITFIELDS;
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if (image->visual == NULL)
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{
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/* XXX ??? Is it always this if depth==16 and a pixmap? Guess so. */
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bmi.u.bmiMasks[0] = 0xf800;
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bmi.u.bmiMasks[1] = 0x07e0;
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bmi.u.bmiMasks[2] = 0x001f;
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}
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else
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{
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bmi.u.bmiMasks[0] = image->visual->red_mask;
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bmi.u.bmiMasks[1] = image->visual->green_mask;
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bmi.u.bmiMasks[2] = image->visual->blue_mask;
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}
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}
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else
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bmi.bmiHeader.biCompression = BI_RGB;
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bmi.bmiHeader.biSizeImage = 0;
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bmi.bmiHeader.biXPelsPerMeter =
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bmi.bmiHeader.biYPelsPerMeter = 0;
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bmi.bmiHeader.biClrUsed = 0;
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bmi.bmiHeader.biClrImportant = 0;
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if ((private->hbitmap = CreateDIBSection (hdc, (BITMAPINFO *) &bmi, iUsage,
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&image->mem, NULL, 0)) == NULL)
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{
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WIN32_GDI_FAILED ("CreateDIBSection");
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DeleteDC (memdc);
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if (GDK_IS_PIXMAP (drawable))
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{
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SelectObject (hdc, oldbitmap1);
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DeleteDC (hdc);
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}
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else
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{
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ReleaseDC (impl->handle, hdc);
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}
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g_free (image);
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return NULL;
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}
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if ((oldbitmap2 = SelectObject (memdc, private->hbitmap)) == NULL)
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{
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WIN32_GDI_FAILED ("SelectObject");
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DeleteObject (private->hbitmap);
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DeleteDC (memdc);
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if (GDK_IS_PIXMAP (drawable))
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{
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SelectObject (hdc, oldbitmap1);
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DeleteDC (hdc);
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}
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else
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{
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ReleaseDC (impl->handle, hdc);
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}
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
if (!BitBlt (memdc, 0, 0, width, height, hdc, x, y, SRCCOPY))
|
|
{
|
|
WIN32_GDI_FAILED ("BitBlt");
|
|
SelectObject (memdc, oldbitmap2);
|
|
DeleteObject (private->hbitmap);
|
|
DeleteDC (memdc);
|
|
if (GDK_IS_PIXMAP (drawable))
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (impl->handle, hdc);
|
|
}
|
|
g_free (image);
|
|
return NULL;
|
|
}
|
|
|
|
if (SelectObject (memdc, oldbitmap2) == NULL)
|
|
WIN32_GDI_FAILED ("SelectObject");
|
|
|
|
if (!DeleteDC (memdc))
|
|
WIN32_GDI_FAILED ("DeleteDC");
|
|
|
|
if (GDK_IS_PIXMAP_IMPL_WIN32 (drawable))
|
|
{
|
|
SelectObject (hdc, oldbitmap1);
|
|
DeleteDC (hdc);
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (impl->handle, 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->bits_per_pixel = image->depth;
|
|
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 = %p, bpl = %d\n",
|
|
(guint) private->hbitmap, image->mem, image->bpl));
|
|
|
|
return image;
|
|
}
|
|
|
|
guint32
|
|
gdk_image_get_pixel (GdkImage *image,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
guint32 pixel;
|
|
|
|
g_return_val_if_fail (GDK_IS_IMAGE (image), 0);
|
|
|
|
if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
|
|
return 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);
|
|
|
|
if (!(x >= 0 && x < image->width && y >= 0 && y < image->height))
|
|
return;
|
|
|
|
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 (GDK_IS_IMAGE (image));
|
|
|
|
private = IMAGE_PRIVATE_DATA (image);
|
|
|
|
if (private == NULL) /* This means that gdk_image_exit() destroyed the
|
|
* image already, and now we're called a second
|
|
* time from _finalize()
|
|
*/
|
|
return;
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_win32_image_destroy: %#x\n",
|
|
(guint) private->hbitmap));
|
|
|
|
switch (image->type)
|
|
{
|
|
case GDK_IMAGE_SHARED:
|
|
if (!DeleteObject (private->hbitmap))
|
|
WIN32_GDI_FAILED ("DeleteObject");
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
g_free (private);
|
|
image->windowing_data = NULL;
|
|
}
|
|
|