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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:30:19 +0000
commit5c1676dfe6d2f3c837a5e074117b45613fd29a72 (patch)
treecbffb45144febf451e54061db2b21395faf94bfe /plug-ins/file-bmp/bmp-save.c
parentInitial commit. (diff)
downloadgimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.tar.xz
gimp-5c1676dfe6d2f3c837a5e074117b45613fd29a72.zip
Adding upstream version 2.10.34.upstream/2.10.34upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plug-ins/file-bmp/bmp-save.c')
-rw-r--r--plug-ins/file-bmp/bmp-save.c1104
1 files changed, 1104 insertions, 0 deletions
diff --git a/plug-ins/file-bmp/bmp-save.c b/plug-ins/file-bmp/bmp-save.c
new file mode 100644
index 0000000..6654f12
--- /dev/null
+++ b/plug-ins/file-bmp/bmp-save.c
@@ -0,0 +1,1104 @@
+/* bmpwrite.c Writes Bitmap files. Even RLE encoded ones. */
+/* (Windows (TM) doesn't read all of those, but who */
+/* cares? ;-) */
+/* I changed a few things over the time, so perhaps */
+/* it dos now, but now there's no Windows left on */
+/* my computer... */
+
+/* Alexander.Schulz@stud.uni-karlsruhe.de */
+
+/*
+ * GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ * ----------------------------------------------------------------------------
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <string.h>
+
+#include <glib/gstdio.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "bmp.h"
+#include "bmp-save.h"
+
+#include "libgimp/stdplugins-intl.h"
+
+
+typedef enum
+{
+ RGB_565,
+ RGBA_5551,
+ RGB_555,
+ RGB_888,
+ RGBA_8888,
+ RGBX_8888
+} RGBMode;
+
+
+static void write_image (FILE *f,
+ guchar *src,
+ gint width,
+ gint height,
+ gint use_run_length_encoding,
+ gint channels,
+ gint bpp,
+ gint spzeile,
+ gint MapSize,
+ RGBMode rgb_format,
+ gint mask_info_size,
+ gint color_space_size);
+
+static gboolean save_dialog (gint channels,
+ gint bpp);
+
+
+static struct
+{
+ RGBMode rgb_format;
+ gint use_run_length_encoding;
+
+ /* Whether or not to write BITMAPV5HEADER color space data */
+ gint dont_write_color_space_data;
+ gboolean overwrite_RGB_format;
+} BMPSaveData;
+
+
+static void
+write_color_map (FILE *f,
+ gint red[MAXCOLORS],
+ gint green[MAXCOLORS],
+ gint blue[MAXCOLORS],
+ gint size)
+{
+ gchar trgb[4];
+ gint i;
+
+ size /= 4;
+ trgb[3] = 0;
+ for (i = 0; i < size; i++)
+ {
+ trgb[0] = (guchar) blue[i];
+ trgb[1] = (guchar) green[i];
+ trgb[2] = (guchar) red[i];
+ Write (f, trgb, 4);
+ }
+}
+
+static gboolean
+warning_dialog (const gchar *primary,
+ const gchar *secondary)
+{
+ GtkWidget *dialog;
+ gboolean ok;
+
+ dialog = gtk_message_dialog_new (NULL, 0,
+ GTK_MESSAGE_WARNING, GTK_BUTTONS_OK_CANCEL,
+ "%s", primary);
+
+ gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
+ "%s", secondary);
+
+ gimp_window_set_transient (GTK_WINDOW (dialog));
+
+ ok = (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+ gtk_widget_destroy (dialog);
+
+ return ok;
+}
+
+GimpPDBStatusType
+save_image (const gchar *filename,
+ gint32 image,
+ gint32 drawable_ID,
+ GimpRunMode run_mode,
+ GError **error)
+{
+ FILE *outfile;
+ BitmapFileHead bitmap_file_head;
+ BitmapHead bitmap_head;
+ gint Red[MAXCOLORS];
+ gint Green[MAXCOLORS];
+ gint Blue[MAXCOLORS];
+ guchar *cmap;
+ gint rows, cols, Spcols, channels, MapSize, SpZeile;
+ glong BitsPerPixel;
+ gint colors;
+ guchar *pixels;
+ GeglBuffer *buffer;
+ const Babl *format;
+ GimpImageType drawable_type;
+ gint drawable_width;
+ gint drawable_height;
+ gint i;
+ gint mask_info_size;
+ gint color_space_size;
+ guint32 Mask[4];
+
+ buffer = gimp_drawable_get_buffer (drawable_ID);
+
+ drawable_type = gimp_drawable_type (drawable_ID);
+ drawable_width = gimp_drawable_width (drawable_ID);
+ drawable_height = gimp_drawable_height (drawable_ID);
+
+ switch (drawable_type)
+ {
+ case GIMP_RGBA_IMAGE:
+ format = babl_format ("R'G'B'A u8");
+ colors = 0;
+ BitsPerPixel = 32;
+ MapSize = 0;
+ channels = 4;
+ if (!BMPSaveData.overwrite_RGB_format)
+ BMPSaveData.rgb_format = RGBA_8888;
+ break;
+
+ case GIMP_RGB_IMAGE:
+ format = babl_format ("R'G'B' u8");
+ colors = 0;
+ BitsPerPixel = 24;
+ MapSize = 0;
+ channels = 3;
+ if (!BMPSaveData.overwrite_RGB_format)
+ BMPSaveData.rgb_format = RGB_888;
+ break;
+
+ case GIMP_GRAYA_IMAGE:
+ if (run_mode == GIMP_RUN_INTERACTIVE &&
+ ! warning_dialog (_("Cannot export indexed image with "
+ "transparency in BMP file format."),
+ _("Alpha channel will be ignored.")))
+ return GIMP_PDB_CANCEL;
+
+ /* fallthrough */
+
+ case GIMP_GRAY_IMAGE:
+ colors = 256;
+ BitsPerPixel = 8;
+ MapSize = 1024;
+
+ if (drawable_type == GIMP_GRAYA_IMAGE)
+ {
+ format = babl_format ("Y'A u8");
+ channels = 2;
+ }
+ else
+ {
+ format = babl_format ("Y' u8");
+ channels = 1;
+ }
+
+ for (i = 0; i < colors; i++)
+ {
+ Red[i] = i;
+ Green[i] = i;
+ Blue[i] = i;
+ }
+ break;
+
+ case GIMP_INDEXEDA_IMAGE:
+ if (run_mode == GIMP_RUN_INTERACTIVE &&
+ ! warning_dialog (_("Cannot export indexed image with "
+ "transparency in BMP file format."),
+ _("Alpha channel will be ignored.")))
+ return GIMP_PDB_CANCEL;
+
+ /* fallthrough */
+
+ case GIMP_INDEXED_IMAGE:
+ format = gimp_drawable_get_format (drawable_ID);
+ cmap = gimp_image_get_colormap (image, &colors);
+ MapSize = 4 * colors;
+
+ if (drawable_type == GIMP_INDEXEDA_IMAGE)
+ channels = 2;
+ else
+ channels = 1;
+
+ if (colors > 16)
+ BitsPerPixel = 8;
+ else if (colors > 2)
+ BitsPerPixel = 4;
+ else
+ BitsPerPixel = 1;
+
+ for (i = 0; i < colors; i++)
+ {
+ Red[i] = *cmap++;
+ Green[i] = *cmap++;
+ Blue[i] = *cmap++;
+ }
+ break;
+
+ default:
+ g_assert_not_reached ();
+ }
+
+ /* Don't alter option data if already defined in non-interactive mode Script-fu */
+ if (BMPSaveData.use_run_length_encoding != 1)
+ BMPSaveData.use_run_length_encoding = 0;
+
+ if (BMPSaveData.dont_write_color_space_data != 1)
+ BMPSaveData.dont_write_color_space_data = 0;
+ mask_info_size = 0;
+
+ if (run_mode != GIMP_RUN_NONINTERACTIVE)
+ {
+ gimp_get_data (SAVE_PROC, &BMPSaveData);
+ }
+
+ if (run_mode == GIMP_RUN_INTERACTIVE &&
+ (BitsPerPixel == 8 ||
+ BitsPerPixel == 4 ||
+ BitsPerPixel == 1))
+ {
+ if (! save_dialog (1, BitsPerPixel))
+ return GIMP_PDB_CANCEL;
+ }
+ else if (BitsPerPixel == 24 ||
+ BitsPerPixel == 32)
+ {
+ if (run_mode == GIMP_RUN_INTERACTIVE)
+ {
+ if (! save_dialog (channels, BitsPerPixel))
+ return GIMP_PDB_CANCEL;
+ }
+
+ /* mask_info_size is only set to non-zero for 16- and 32-bpp */
+ switch (BMPSaveData.rgb_format)
+ {
+ case RGB_888:
+ BitsPerPixel = 24;
+ break;
+ case RGBA_8888:
+ BitsPerPixel = 32;
+ mask_info_size = 16;
+ break;
+ case RGBX_8888:
+ BitsPerPixel = 32;
+ mask_info_size = 16;
+ break;
+ case RGB_565:
+ BitsPerPixel = 16;
+ mask_info_size = 16;
+ break;
+ case RGBA_5551:
+ BitsPerPixel = 16;
+ mask_info_size = 16;
+ break;
+ case RGB_555:
+ BitsPerPixel = 16;
+ mask_info_size = 16;
+ break;
+ default:
+ g_return_val_if_reached (GIMP_PDB_EXECUTION_ERROR);
+ }
+ }
+
+ gimp_set_data (SAVE_PROC, &BMPSaveData, sizeof (BMPSaveData));
+
+ /* Let's begin the progress */
+ gimp_progress_init_printf (_("Exporting '%s'"),
+ gimp_filename_to_utf8 (filename));
+
+ /* Let's take some file */
+ outfile = g_fopen (filename, "wb");
+ if (!outfile)
+ {
+ g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
+ _("Could not open '%s' for writing: %s"),
+ gimp_filename_to_utf8 (filename), g_strerror (errno));
+ return GIMP_PDB_EXECUTION_ERROR;
+ }
+
+ /* fetch the image */
+ pixels = g_new (guchar, drawable_width * drawable_height * channels);
+
+ gegl_buffer_get (buffer, GEGL_RECTANGLE (0, 0,
+ drawable_width, drawable_height), 1.0,
+ format, pixels,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ g_object_unref (buffer);
+
+ /* Now, we need some further information ... */
+ cols = drawable_width;
+ rows = drawable_height;
+
+ /* ... that we write to our headers. */
+ if ((BitsPerPixel <= 8) && (cols % (8 / BitsPerPixel)))
+ Spcols = (((cols / (8 / BitsPerPixel)) + 1) * (8 / BitsPerPixel));
+ else
+ Spcols = cols;
+
+ if ((((Spcols * BitsPerPixel) / 8) % 4) == 0)
+ SpZeile = ((Spcols * BitsPerPixel) / 8);
+ else
+ SpZeile = ((gint) (((Spcols * BitsPerPixel) / 8) / 4) + 1) * 4;
+
+ if (! BMPSaveData.dont_write_color_space_data)
+ {
+ /* Always include color mask for BITMAPV5HEADER, see #4155. */
+ mask_info_size = 16;
+ color_space_size = 68;
+ }
+ else
+ {
+ color_space_size = 0;
+ }
+
+ bitmap_file_head.bfSize = (0x36 + MapSize + (rows * SpZeile) +
+ mask_info_size + color_space_size);
+ bitmap_file_head.zzHotX = 0;
+ bitmap_file_head.zzHotY = 0;
+ bitmap_file_head.bfOffs = (0x36 + MapSize +
+ mask_info_size + color_space_size);
+ bitmap_file_head.biSize = 40 + mask_info_size + color_space_size;
+
+ bitmap_head.biWidth = cols;
+ bitmap_head.biHeight = rows;
+ bitmap_head.biPlanes = 1;
+ bitmap_head.biBitCnt = BitsPerPixel;
+
+ if (BMPSaveData.use_run_length_encoding == 0)
+ {
+ /* The Microsoft specification for BITMAPV5HEADER says that
+ * BI_BITFIELDS is valid for 16 and 32-bits per pixel,
+ * Since it doesn't mention 24 bpp or other numbers
+ * use BI_RGB for that. See issue #6114. */
+ if (mask_info_size > 0 && (BitsPerPixel == 16 || BitsPerPixel == 32))
+ bitmap_head.biCompr = 3; /* BI_BITFIELDS */
+ else
+ bitmap_head.biCompr = 0; /* BI_RGB */
+ }
+ else if (BitsPerPixel == 8)
+ {
+ bitmap_head.biCompr = 1;
+ }
+ else if (BitsPerPixel == 4)
+ {
+ bitmap_head.biCompr = 2;
+ }
+ else
+ {
+ bitmap_head.biCompr = 0;
+ }
+
+ bitmap_head.biSizeIm = SpZeile * rows;
+
+ {
+ gdouble xresolution;
+ gdouble yresolution;
+ gimp_image_get_resolution (image, &xresolution, &yresolution);
+
+ if (xresolution > GIMP_MIN_RESOLUTION &&
+ yresolution > GIMP_MIN_RESOLUTION)
+ {
+ /*
+ * xresolution and yresolution are in dots per inch.
+ * the BMP spec says that biXPels and biYPels are in
+ * pixels per meter as long ints (actually, "DWORDS"),
+ * so...
+ * n dots inch 100 cm m dots
+ * ------ * ------- * ------ = ------
+ * inch 2.54 cm m inch
+ *
+ * We add 0.5 for proper rounding.
+ */
+ bitmap_head.biXPels = (long int) (xresolution * 100.0 / 2.54 + 0.5);
+ bitmap_head.biYPels = (long int) (yresolution * 100.0 / 2.54 + 0.5);
+ }
+ }
+
+ if (BitsPerPixel <= 8)
+ bitmap_head.biClrUsed = colors;
+ else
+ bitmap_head.biClrUsed = 0;
+
+ bitmap_head.biClrImp = bitmap_head.biClrUsed;
+
+#ifdef DEBUG
+ printf ("\nSize: %u, Colors: %u, Bits: %u, Width: %u, Height: %u, Comp: %u, Zeile: %u\n",
+ (int)bitmap_file_head.bfSize,
+ (int)bitmap_head.biClrUsed,
+ bitmap_head.biBitCnt,
+ (int)bitmap_head.biWidth,
+ (int)bitmap_head.biHeight,
+ (int)bitmap_head.biCompr,SpZeile);
+#endif
+
+ /* And now write the header and the colormap (if any) to disk */
+
+ Write (outfile, "BM", 2);
+
+ bitmap_file_head.bfSize = GUINT32_TO_LE (bitmap_file_head.bfSize);
+ bitmap_file_head.zzHotX = GUINT16_TO_LE (bitmap_file_head.zzHotX);
+ bitmap_file_head.zzHotY = GUINT16_TO_LE (bitmap_file_head.zzHotY);
+ bitmap_file_head.bfOffs = GUINT32_TO_LE (bitmap_file_head.bfOffs);
+ bitmap_file_head.biSize = GUINT32_TO_LE (bitmap_file_head.biSize);
+
+ Write (outfile, &bitmap_file_head.bfSize, 16);
+
+ bitmap_head.biWidth = GINT32_TO_LE (bitmap_head.biWidth);
+ bitmap_head.biHeight = GINT32_TO_LE (bitmap_head.biHeight);
+ bitmap_head.biPlanes = GUINT16_TO_LE (bitmap_head.biPlanes);
+ bitmap_head.biBitCnt = GUINT16_TO_LE (bitmap_head.biBitCnt);
+ bitmap_head.biCompr = GUINT32_TO_LE (bitmap_head.biCompr);
+ bitmap_head.biSizeIm = GUINT32_TO_LE (bitmap_head.biSizeIm);
+ bitmap_head.biXPels = GUINT32_TO_LE (bitmap_head.biXPels);
+ bitmap_head.biYPels = GUINT32_TO_LE (bitmap_head.biYPels);
+ bitmap_head.biClrUsed = GUINT32_TO_LE (bitmap_head.biClrUsed);
+ bitmap_head.biClrImp = GUINT32_TO_LE (bitmap_head.biClrImp);
+
+ Write (outfile, &bitmap_head, 36);
+
+ if (mask_info_size > 0)
+ {
+ switch (BMPSaveData.rgb_format)
+ {
+ default:
+ case RGB_888:
+ case RGBX_8888:
+ Mask[0] = 0x00ff0000;
+ Mask[1] = 0x0000ff00;
+ Mask[2] = 0x000000ff;
+ Mask[3] = 0x00000000;
+ break;
+
+ case RGBA_8888:
+ Mask[0] = 0x00ff0000;
+ Mask[1] = 0x0000ff00;
+ Mask[2] = 0x000000ff;
+ Mask[3] = 0xff000000;
+ break;
+
+ case RGB_565:
+ Mask[0] = 0xf800;
+ Mask[1] = 0x7e0;
+ Mask[2] = 0x1f;
+ Mask[3] = 0x0;
+ break;
+
+ case RGBA_5551:
+ Mask[0] = 0x7c00;
+ Mask[1] = 0x3e0;
+ Mask[2] = 0x1f;
+ Mask[3] = 0x8000;
+ break;
+
+ case RGB_555:
+ Mask[0] = 0x7c00;
+ Mask[1] = 0x3e0;
+ Mask[2] = 0x1f;
+ Mask[3] = 0x0;
+ break;
+ }
+
+ Mask[0] = GUINT32_TO_LE (Mask[0]);
+ Mask[1] = GUINT32_TO_LE (Mask[1]);
+ Mask[2] = GUINT32_TO_LE (Mask[2]);
+ Mask[3] = GUINT32_TO_LE (Mask[3]);
+
+ Write (outfile, &Mask, mask_info_size);
+ }
+
+ if (! BMPSaveData.dont_write_color_space_data)
+ {
+ guint32 buf[0x11];
+
+ /* Write V5 color space fields */
+
+ /* bV5CSType = LCS_sRGB */
+ buf[0x00] = GUINT32_TO_LE (0x73524742);
+
+ /* bV5Endpoints is set to 0 (ignored) */
+ for (i = 0; i < 0x09; i++)
+ buf[i + 1] = 0x00;
+
+ /* bV5GammaRed is set to 0 (ignored) */
+ buf[0x0a] = GUINT32_TO_LE (0x0);
+
+ /* bV5GammaGreen is set to 0 (ignored) */
+ buf[0x0b] = GUINT32_TO_LE (0x0);
+
+ /* bV5GammaBlue is set to 0 (ignored) */
+ buf[0x0c] = GUINT32_TO_LE (0x0);
+
+ /* bV5Intent = LCS_GM_GRAPHICS */
+ buf[0x0d] = GUINT32_TO_LE (0x00000002);
+
+ /* bV5ProfileData is set to 0 (ignored) */
+ buf[0x0e] = GUINT32_TO_LE (0x0);
+
+ /* bV5ProfileSize is set to 0 (ignored) */
+ buf[0x0f] = GUINT32_TO_LE (0x0);
+
+ /* bV5Reserved = 0 */
+ buf[0x10] = GUINT32_TO_LE (0x0);
+
+ Write (outfile, buf, color_space_size);
+ }
+
+ write_color_map (outfile, Red, Green, Blue, MapSize);
+
+ /* After that is done, we write the image ... */
+
+ write_image (outfile,
+ pixels, cols, rows,
+ BMPSaveData.use_run_length_encoding,
+ channels, BitsPerPixel, SpZeile,
+ MapSize, BMPSaveData.rgb_format,
+ mask_info_size, color_space_size);
+
+ /* ... and exit normally */
+
+ fclose (outfile);
+ g_free (pixels);
+
+ return GIMP_PDB_SUCCESS;
+}
+
+/* Entry point for file-bmp-save2 */
+GimpPDBStatusType
+save_image2 (const gchar *filename,
+ gint32 image,
+ gint32 drawable_ID,
+ gint32 use_rle,
+ gint32 write_color_space,
+ gint32 rgb_format,
+ GimpRunMode run_mode,
+ GError **error)
+{
+ BMPSaveData.use_run_length_encoding = use_rle;
+ BMPSaveData.dont_write_color_space_data = write_color_space;
+ BMPSaveData.rgb_format = (RGBMode) rgb_format;
+ /* Prevents save_image () from overwriting user's RGB format */
+ BMPSaveData.overwrite_RGB_format = TRUE;
+
+ return save_image (filename, image, drawable_ID,
+ run_mode, error);
+}
+
+static inline void
+Make565 (guchar r,
+ guchar g,
+ guchar b,
+ guchar *buf)
+{
+ gint p;
+
+ p = ((((gint) (r / 255.0 * 31.0 + 0.5)) << 11) |
+ (((gint) (g / 255.0 * 63.0 + 0.5)) << 5) |
+ (((gint) (b / 255.0 * 31.0 + 0.5))));
+
+ buf[0] = (guchar) (p & 0xff);
+ buf[1] = (guchar) (p >> 8);
+}
+
+static inline void
+Make5551 (guchar r,
+ guchar g,
+ guchar b,
+ guchar a,
+ guchar *buf)
+{
+ gint p;
+
+ p = ((((gint) (r / 255.0 * 31.0 + 0.5)) << 10) |
+ (((gint) (g / 255.0 * 31.0 + 0.5)) << 5) |
+ (((gint) (b / 255.0 * 31.0 + 0.5))) |
+ (((gint) (a / 255.0 + 0.5) << 15)));
+
+ buf[0] = (guchar) (p & 0xff);
+ buf[1] = (guchar) (p >> 8);
+}
+
+static void
+write_image (FILE *f,
+ guchar *src,
+ gint width,
+ gint height,
+ gint use_run_length_encoding,
+ gint channels,
+ gint bpp,
+ gint spzeile,
+ gint MapSize,
+ RGBMode rgb_format,
+ gint mask_info_size,
+ gint color_space_size)
+{
+ guchar buf[16] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0 };
+ guint32 uint32buf;
+ guchar *temp, v;
+ guchar *row, *ketten;
+ gint xpos, ypos, i, j, rowstride, length, thiswidth;
+ gint breite, k;
+ guchar n, r, g, b, a;
+ gint cur_progress;
+ gint max_progress;
+
+ xpos = 0;
+ rowstride = width * channels;
+
+ cur_progress = 0;
+ max_progress = height;
+
+ /* We'll begin with the 16/24/32 bit Bitmaps, they are easy :-) */
+
+ if (bpp > 8)
+ {
+ for (ypos = height - 1; ypos >= 0; ypos--) /* for each row */
+ {
+ for (i = 0; i < width; i++) /* for each pixel */
+ {
+ temp = src + (ypos * rowstride) + (xpos * channels);
+ switch (rgb_format)
+ {
+ default:
+ case RGB_888:
+ buf[2] = *temp++;
+ buf[1] = *temp++;
+ buf[0] = *temp++;
+ xpos++;
+ if (channels > 3 && (guchar) *temp == 0)
+ buf[0] = buf[1] = buf[2] = 0xff;
+ Write (f, buf, 3);
+ break;
+ case RGBX_8888:
+ buf[2] = *temp++;
+ buf[1] = *temp++;
+ buf[0] = *temp++;
+ buf[3] = 0;
+ xpos++;
+ if (channels > 3 && (guchar) *temp == 0)
+ buf[0] = buf[1] = buf[2] = 0xff;
+ Write (f, buf, 4);
+ break;
+ case RGBA_8888:
+ buf[2] = *temp++;
+ buf[1] = *temp++;
+ buf[0] = *temp++;
+ buf[3] = *temp;
+ xpos++;
+ Write (f, buf, 4);
+ break;
+ case RGB_565:
+ r = *temp++;
+ g = *temp++;
+ b = *temp++;
+ if (channels > 3 && (guchar) *temp == 0)
+ r = g = b = 0xff;
+ Make565 (r, g, b, buf);
+ xpos++;
+ Write (f, buf, 2);
+ break;
+ case RGB_555:
+ r = *temp++;
+ g = *temp++;
+ b = *temp++;
+ if (channels > 3 && (guchar) *temp == 0)
+ r = g = b = 0xff;
+ Make5551 (r, g, b, 0x0, buf);
+ xpos++;
+ Write (f, buf, 2);
+ break;
+ case RGBA_5551:
+ r = *temp++;
+ g = *temp++;
+ b = *temp++;
+ a = *temp;
+ Make5551 (r, g, b, a, buf);
+ xpos++;
+ Write (f, buf, 2);
+ break;
+ }
+ }
+
+ Write (f, &buf[4], spzeile - (width * (bpp/8)));
+
+ cur_progress++;
+ if ((cur_progress % 5) == 0)
+ gimp_progress_update ((gdouble) cur_progress /
+ (gdouble) max_progress);
+
+ xpos = 0;
+ }
+ }
+ else
+ {
+ if (bpp == 1)
+ use_run_length_encoding = 0;
+ switch (use_run_length_encoding) /* now it gets more difficult */
+ { /* uncompressed 1,4 and 8 bit */
+ case 0:
+ {
+ thiswidth = (width / (8 / bpp));
+ if (width % (8 / bpp))
+ thiswidth++;
+
+ for (ypos = height - 1; ypos >= 0; ypos--) /* for each row */
+ {
+ for (xpos = 0; xpos < width;) /* for each _byte_ */
+ {
+ v = 0;
+ for (i = 1;
+ (i <= (8 / bpp)) && (xpos < width);
+ i++, xpos++) /* for each pixel */
+ {
+ temp = src + (ypos * rowstride) + (xpos * channels);
+ if (channels > 1 && *(temp+1) == 0) *temp = 0x0;
+ v=v | ((guchar) *temp << (8 - (i * bpp)));
+ }
+ Write (f, &v, 1);
+ }
+ Write (f, &buf[3], spzeile - thiswidth);
+ xpos = 0;
+
+ cur_progress++;
+ if ((cur_progress % 5) == 0)
+ gimp_progress_update ((gdouble) cur_progress /
+ (gdouble) max_progress);
+ }
+ break;
+ }
+ default:
+ { /* Save RLE encoded file, quite difficult */
+ length = 0;
+ buf[12] = 0;
+ buf[13] = 1;
+ buf[14] = 0;
+ buf[15] = 0;
+ row = g_new (guchar, width / (8 / bpp) + 10);
+ ketten = g_new (guchar, width / (8 / bpp) + 10);
+ for (ypos = height - 1; ypos >= 0; ypos--)
+ { /* each row separately */
+ j = 0;
+ /* first copy the pixels to a buffer,
+ * making one byte from two 4bit pixels
+ */
+ for (xpos = 0; xpos < width;)
+ {
+ v = 0;
+ for (i = 1;
+ (i <= (8 / bpp)) && (xpos < width);
+ i++, xpos++)
+ { /* for each pixel */
+ temp = src + (ypos * rowstride) + (xpos * channels);
+ if (channels > 1 && *(temp+1) == 0) *temp = 0x0;
+ v = v | ((guchar) * temp << (8 - (i * bpp)));
+ }
+ row[j++] = v;
+ }
+ breite = width / (8 / bpp);
+ if (width % (8 / bpp))
+ breite++;
+
+ /* then check for strings of equal bytes */
+ for (i = 0; i < breite; i += j)
+ {
+ j = 0;
+ while ((i + j < breite) &&
+ (j < (255 / (8 / bpp))) &&
+ (row[i + j] == row[i]))
+ j++;
+
+ ketten[i] = j;
+ }
+
+ /* then write the strings and the other pixels to the file */
+ for (i = 0; i < breite;)
+ {
+ if (ketten[i] < 3)
+ /* strings of different pixels ... */
+ {
+ j = 0;
+ while ((i + j < breite) &&
+ (j < (255 / (8 / bpp))) &&
+ (ketten[i + j] < 3))
+ j += ketten[i + j];
+
+ /* this can only happen if j jumps over
+ * the end with a 2 in ketten[i+j]
+ */
+ if (j > (255 / (8 / bpp)))
+ j -= 2;
+ /* 00 01 and 00 02 are reserved */
+ if (j > 2)
+ {
+ Write (f, &buf[12], 1);
+ n = j * (8 / bpp);
+ if (n + i * (8 / bpp) > width)
+ n--;
+ Write (f, &n, 1);
+ length += 2;
+ Write (f, &row[i], j);
+ length += j;
+ if ((j) % 2)
+ {
+ Write (f, &buf[12], 1);
+ length++;
+ }
+ }
+ else
+ {
+ for (k = i; k < i + j; k++)
+ {
+ n = (8 / bpp);
+ if (n + i * (8 / bpp) > width)
+ n--;
+ Write (f, &n, 1);
+ Write (f, &row[k], 1);
+ /*printf("%i.#|",n); */
+ length += 2;
+ }
+ }
+ i += j;
+ }
+ else
+ /* strings of equal pixels */
+ {
+ n = ketten[i] * (8 / bpp);
+ if (n + i * (8 / bpp) > width)
+ n--;
+ Write (f, &n, 1);
+ Write (f, &row[i], 1);
+ i += ketten[i];
+ length += 2;
+ }
+ }
+
+ Write (f, &buf[14], 2); /* End of row */
+ length += 2;
+
+ cur_progress++;
+ if ((cur_progress % 5) == 0)
+ gimp_progress_update ((gdouble) cur_progress /
+ (gdouble) max_progress);
+ }
+
+ fseek (f, -2, SEEK_CUR); /* Overwrite last End of row ... */
+ Write (f, &buf[12], 2); /* ... with End of file */
+
+ fseek (f, 0x22, SEEK_SET); /* Write length of image */
+ uint32buf = GUINT32_TO_LE (length);
+ Write (f, &uint32buf, 4);
+
+ fseek (f, 0x02, SEEK_SET); /* Write length of file */
+ length += (0x36 + MapSize + mask_info_size + color_space_size);
+ uint32buf = GUINT32_TO_LE (length);
+ Write (f, &uint32buf, 4);
+
+ g_free (ketten);
+ g_free (row);
+ break;
+ }
+ }
+ }
+
+ gimp_progress_update (1.0);
+}
+
+static void
+format_callback (GtkToggleButton *toggle,
+ gpointer data)
+{
+ if (gtk_toggle_button_get_active (toggle))
+ BMPSaveData.rgb_format = GPOINTER_TO_INT (data);
+}
+
+static gboolean
+save_dialog (gint channels, gint bpp)
+{
+ GtkWidget *dialog;
+ GtkWidget *toggle;
+ GtkWidget *vbox_main;
+ GtkWidget *vbox;
+ GtkWidget *vbox2;
+ GtkWidget *expander;
+ GtkWidget *frame;
+ GSList *group;
+ gboolean run;
+
+ /* Dialog init */
+ dialog = gimp_export_dialog_new ("BMP", PLUG_IN_BINARY, SAVE_PROC);
+
+ gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
+
+ vbox_main = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (vbox_main), 12);
+ gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)),
+ vbox_main, TRUE, TRUE, 0);
+ gtk_widget_show (vbox_main);
+
+ /* Run-Length Encoded */
+ toggle = gtk_check_button_new_with_mnemonic (_("_Run-Length Encoded"));
+ gtk_box_pack_start (GTK_BOX (vbox_main), toggle, FALSE, FALSE, 0);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ BMPSaveData.use_run_length_encoding);
+ gtk_widget_show (toggle);
+ if (channels > 1 || bpp == 1)
+ gtk_widget_set_sensitive (toggle, FALSE);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (gimp_toggle_button_update),
+ &BMPSaveData.use_run_length_encoding);
+
+ /* Compatibility Options */
+ expander = gtk_expander_new_with_mnemonic (_("Co_mpatibility Options"));
+
+ gtk_box_pack_start (GTK_BOX (vbox_main), expander, TRUE, TRUE, 0);
+ gtk_widget_show (expander);
+
+ vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (vbox2), 12);
+ gtk_container_add (GTK_CONTAINER (expander), vbox2);
+ gtk_widget_show (vbox2);
+
+ toggle = gtk_check_button_new_with_mnemonic (_("_Do not write color space information"));
+ gimp_help_set_help_data (toggle,
+ _("Some applications can not read BMP images that "
+ "include color space information. GIMP writes "
+ "color space information by default. Enabling "
+ "this option will cause GIMP to not write color "
+ "space information to the file."),
+ NULL);
+ gtk_box_pack_start (GTK_BOX (vbox2), toggle, FALSE, FALSE, 0);
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
+ BMPSaveData.dont_write_color_space_data);
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (gimp_toggle_button_update),
+ &BMPSaveData.dont_write_color_space_data);
+
+ /* Advanced Options */
+ expander = gtk_expander_new_with_mnemonic (_("_Advanced Options"));
+
+ gtk_box_pack_start (GTK_BOX (vbox_main), expander, TRUE, TRUE, 0);
+ gtk_widget_show (expander);
+
+ if (channels < 3)
+ gtk_widget_set_sensitive (expander, FALSE);
+
+ vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+ gtk_container_set_border_width (GTK_CONTAINER (vbox2), 12);
+ gtk_container_add (GTK_CONTAINER (expander), vbox2);
+ gtk_widget_show (vbox2);
+
+ group = NULL;
+
+ frame = gimp_frame_new (_("16 bits"));
+ gtk_box_pack_start (GTK_BOX (vbox2), frame, TRUE, TRUE, 0);
+ gtk_widget_show (frame);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), vbox);
+ gtk_widget_show (vbox);
+
+ toggle = gtk_radio_button_new_with_mnemonic (group, "_R5 G6 B5");
+ group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (format_callback),
+ GINT_TO_POINTER (RGB_565));
+
+ toggle = gtk_radio_button_new_with_mnemonic (group, "_A1 R5 G5 B5");
+ group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+
+ if (channels < 4)
+ gtk_widget_set_sensitive (toggle, FALSE);
+
+ gtk_widget_show (toggle);
+
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (format_callback),
+ GINT_TO_POINTER (RGBA_5551));
+ toggle = gtk_radio_button_new_with_mnemonic (group, "_X1 R5 G5 B5");
+ group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (format_callback),
+ GINT_TO_POINTER (RGB_555));
+
+ frame = gimp_frame_new (_("24 bits"));
+ gtk_box_pack_start (GTK_BOX (vbox2), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ toggle = gtk_radio_button_new_with_mnemonic (group, "R_8 G8 B8");
+ group = gtk_radio_button_get_group (GTK_RADIO_BUTTON(toggle));
+ gtk_container_add (GTK_CONTAINER (frame), toggle);
+ gtk_widget_show (toggle);
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (format_callback),
+ GINT_TO_POINTER (RGB_888));
+ if (channels < 4)
+ {
+ BMPSaveData.rgb_format = RGB_888;
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), TRUE);
+ }
+
+ frame = gimp_frame_new (_("32 bits"));
+ gtk_box_pack_start (GTK_BOX (vbox2), frame, FALSE, FALSE, 0);
+ gtk_widget_show (frame);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
+ gtk_container_add (GTK_CONTAINER (frame), vbox);
+ gtk_widget_show (vbox);
+
+ toggle = gtk_radio_button_new_with_mnemonic (group, "A8 R8 G8 _B8");
+ group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (format_callback),
+ GINT_TO_POINTER (RGBA_8888));
+
+
+ if (channels < 4)
+ {
+ gtk_widget_set_sensitive (toggle, FALSE);
+ }
+ else
+ {
+ BMPSaveData.rgb_format = RGBA_8888;
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), TRUE);
+ }
+
+ toggle = gtk_radio_button_new_with_mnemonic (group, "X8 R8 G8 _B8");
+ group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (toggle));
+ gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+ gtk_widget_show (toggle);
+ g_signal_connect (toggle, "toggled",
+ G_CALLBACK (format_callback),
+ GINT_TO_POINTER (RGBX_8888));
+
+ /* Dialog show */
+ gtk_widget_show (dialog);
+
+ run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+ gtk_widget_destroy (dialog);
+
+ return run;
+}