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rnd-20020320-1-src
[rocksndiamonds.git]
/
src
/
libgame
/
image.c
diff --git
a/src/libgame/image.c
b/src/libgame/image.c
index ae53b44a3b8b2d909b610adf2ef0176655d4db5d..ef2898e25b258478bca80bf61a6f595480931d8e 100644
(file)
--- a/
src/libgame/image.c
+++ b/
src/libgame/image.c
@@
-23,30
+23,31
@@
Image *newImage(unsigned int width, unsigned int height, unsigned int depth)
{
Image *image;
Image *newImage(unsigned int width, unsigned int height, unsigned int depth)
{
Image *image;
-
const unsigned int bytes_per_pixel = 1
;
+
unsigned int bytes_per_pixel = (depth + 7) / 8
;
int i;
int i;
+#if 0
if (depth > 8)
Error(ERR_EXIT, "images with more than 256 colors are not supported");
depth = 8;
if (depth > 8)
Error(ERR_EXIT, "images with more than 256 colors are not supported");
depth = 8;
+#endif
image = checked_malloc(sizeof(Image));
image->data = checked_malloc(width * height * bytes_per_pixel);
image->width = width;
image->height = height;
image->depth = depth;
image = checked_malloc(sizeof(Image));
image->data = checked_malloc(width * height * bytes_per_pixel);
image->width = width;
image->height = height;
image->depth = depth;
- image->rgb.used = 0;
+ image->bytes_per_pixel = bytes_per_pixel;
+ image->bytes_per_row = width * bytes_per_pixel;
+ image->rgb.used = 0;
for (i=0; i<MAX_COLORS; i++)
image->rgb.color_used[i] = FALSE;
image->type = (depth < 8 ? IMAGETYPE_BITMAP :
depth > 8 ? IMAGETYPE_TRUECOLOR : IMAGETYPE_RGB);
for (i=0; i<MAX_COLORS; i++)
image->rgb.color_used[i] = FALSE;
image->type = (depth < 8 ? IMAGETYPE_BITMAP :
depth > 8 ? IMAGETYPE_TRUECOLOR : IMAGETYPE_RGB);
- image->bytes_per_row = (depth + 7) / 8;
- image->bytes_per_row *= width;
-
return image;
}
return image;
}
@@
-93,7
+94,7
@@
static Pixmap Image_to_Mask(Image *image, Display *display, Window window)
{
byte *src_ptr, *dst_ptr, *dst_ptr2;
unsigned int bytes_per_row;
{
byte *src_ptr, *dst_ptr, *dst_ptr2;
unsigned int bytes_per_row;
- unsigned int x, y;
+ unsigned int x, y
, i
;
byte bitmask;
byte *mask_data;
Pixmap mask_pixmap;
byte bitmask;
byte *mask_data;
Pixmap mask_pixmap;
@@
-116,8
+117,9
@@
static Pixmap Image_to_Mask(Image *image, Display *display, Window window)
for (x=0; x<image->width; x++)
{
for (x=0; x<image->width; x++)
{
- if (*src_ptr++) /* source pixel solid? (pixel index != 0) */
- *dst_ptr2 |= bitmask; /* then write a bit into the image mask */
+ for (i=0; i<image->bytes_per_pixel; i++)
+ if (*src_ptr++) /* source pixel solid? (pixel index != 0) */
+ *dst_ptr2 |= bitmask; /* then write a bit into the image mask */
if ((bitmask <<= 1) == 0) /* bit at rightmost byte position reached? */
{
if ((bitmask <<= 1) == 0) /* bit at rightmost byte position reached? */
{
@@
-167,12
+169,16
@@
XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
static int num_cmap_entries, free_cmap_entries;
static boolean private_cmap = FALSE;
Pixel *redvalue, *greenvalue, *bluevalue;
static int num_cmap_entries, free_cmap_entries;
static boolean private_cmap = FALSE;
Pixel *redvalue, *greenvalue, *bluevalue;
- unsigned int a, c = 0, x, y, bytes_per_pixel, bits_per_pixel;
+ unsigned int display_bytes_per_pixel, display_bits_per_pixel;
+ unsigned int a, c = 0, x, y;
XColor xcolor;
XImage *ximage;
XImageInfo *ximageinfo;
byte *src_ptr, *dst_ptr;
XColor xcolor;
XImage *ximage;
XImageInfo *ximageinfo;
byte *src_ptr, *dst_ptr;
+ if (image->type == IMAGETYPE_TRUECOLOR && depth == 8)
+ Error(ERR_EXIT, "cannot handle true-color images on 8-bit display");
+
if (!global_cmap)
{
if (visual == DefaultVisual(display, screen))
if (!global_cmap)
{
if (visual == DefaultVisual(display, screen))
@@
-417,14
+423,14
@@
XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
/* create XImage from internal image structure and convert it to Pixmap */
/* create XImage from internal image structure and convert it to Pixmap */
- bits_per_pixel = bitsPerPixelAtDepth(display, screen, depth);
-
bytes_per_pixel = (
bits_per_pixel + 7) / 8;
+
display_
bits_per_pixel = bitsPerPixelAtDepth(display, screen, depth);
+
display_bytes_per_pixel = (display_
bits_per_pixel + 7) / 8;
ximage = XCreateImage(display, visual, depth, ZPixmap, 0,
NULL, image->width, image->height,
ximage = XCreateImage(display, visual, depth, ZPixmap, 0,
NULL, image->width, image->height,
- 8, image->width * bytes_per_pixel);
+ 8, image->width *
display_
bytes_per_pixel);
ximage->data =
ximage->data =
- checked_malloc(image->width * image->height * bytes_per_pixel);
+ checked_malloc(image->width * image->height *
display_
bytes_per_pixel);
ximage->byte_order = MSBFirst;
src_ptr = image->data;
ximage->byte_order = MSBFirst;
src_ptr = image->data;
@@
-450,8
+456,8
@@
XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
redvalue[image->rgb.red[pixval] >> 8] |
greenvalue[image->rgb.green[pixval] >> 8] |
bluevalue[image->rgb.blue[pixval] >> 8];
redvalue[image->rgb.red[pixval] >> 8] |
greenvalue[image->rgb.green[pixval] >> 8] |
bluevalue[image->rgb.blue[pixval] >> 8];
- value_to_memory(pixval, dst_ptr, bytes_per_pixel);
- dst_ptr += bytes_per_pixel;
+ value_to_memory(pixval, dst_ptr,
display_
bytes_per_pixel);
+ dst_ptr +=
display_
bytes_per_pixel;
}
}
break;
}
}
break;
@@
-463,14
+469,14
@@
XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
{
for (x=0; x<image->width; x++)
{
{
for (x=0; x<image->width; x++)
{
- pixval = memory_to_value(src_ptr, image->
depth
);
+ pixval = memory_to_value(src_ptr, image->
bytes_per_pixel
);
pixval =
redvalue[TRUECOLOR_RED(pixval)] |
greenvalue[TRUECOLOR_GREEN(pixval)] |
bluevalue[TRUECOLOR_BLUE(pixval)];
pixval =
redvalue[TRUECOLOR_RED(pixval)] |
greenvalue[TRUECOLOR_GREEN(pixval)] |
bluevalue[TRUECOLOR_BLUE(pixval)];
- value_to_memory(pixval, dst_ptr, bytes_per_pixel);
- src_ptr += image->
depth
;
- dst_ptr += bytes_per_pixel;
+ value_to_memory(pixval, dst_ptr,
display_
bytes_per_pixel);
+ src_ptr += image->
bytes_per_pixel
;
+ dst_ptr +=
display_
bytes_per_pixel;
}
}
break;
}
}
break;
@@
-486,7
+492,7
@@
XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
case PseudoColor:
{
case PseudoColor:
{
- if (
bytes_per_pixel == 1) /* (common)
special case */
+ if (
display_bytes_per_pixel == 1) /*
special case */
{
for (y=0; y<image->height; y++)
for (x=0; x<image->width; x++)
{
for (y=0; y<image->height; y++)
for (x=0; x<image->width; x++)
@@
-499,8
+505,8
@@
XImageInfo *Image_to_Pixmap(Display *display, int screen, Visual *visual,
for (x=0; x<image->width; x++)
{
value_to_memory(ximageinfo->index[c + *src_ptr++],
for (x=0; x<image->width; x++)
{
value_to_memory(ximageinfo->index[c + *src_ptr++],
- dst_ptr, bytes_per_pixel);
- dst_ptr += bytes_per_pixel;
+ dst_ptr,
display_
bytes_per_pixel);
+ dst_ptr +=
display_
bytes_per_pixel;
}
}
}
}
}
}