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added support for dumping B_RGB15 and B_CMAP8 colorspaces

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25976 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval 2008-06-16 18:41:31 +00:00
parent 2d5f339dec
commit 4498384dd3
1 changed files with 52 additions and 2 deletions
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54
src/kits/interface/PNGDump.cpp
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@ -11,6 +11,7 @@
#include "PNGDump.h" #include "PNGDump.h"
#include <InterfaceDefs.h>
#include <NodeInfo.h> #include <NodeInfo.h>
#include <Rect.h> #include <Rect.h>
@ -114,7 +115,7 @@ SaveToPNG(const char* filename, const BRect& bounds, color_space space,
png_byte tempRow[dstRowBytes]; png_byte tempRow[dstRowBytes];
for (int row = 0; row < height; row++) { for (int row = 0; row < height; row++) {
for (int i = 0; i < dstRowBytes; i += 3, src++) { for (int i = 0; i < dstRowBytes; i += 3, src++) {
tempRow[i + 2] = (*src & 0xf800) >> 8; tempRow[i + 2] = (*src & 0xf800) >> 8;
tempRow[i + 1] = (*src & 0x07e0) >> 3; tempRow[i + 1] = (*src & 0x07e0) >> 3;
tempRow[i] = (*src & 0x001f) << 3; tempRow[i] = (*src & 0x001f) << 3;
} }
@ -123,10 +124,59 @@ SaveToPNG(const char* filename, const BRect& bounds, color_space space,
} }
break; break;
} }
case B_RGB15:
{
// create file without alpha channel
png_set_IHDR(png, info, width, height, 8, PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
// convert from 15 bit RGB to 24 bit RGB while saving
uint16* src = (uint16 *)bits;
int dstRowBytes = width * 3;
png_byte tempRow[dstRowBytes];
for (int row = 0; row < height; row++) {
for (int i = 0; i < dstRowBytes; i += 3, src++) {
tempRow[i + 2] = (*src & 0x7c00) >> 7;
tempRow[i + 1] = (*src & 0x03e0) >> 2;
tempRow[i] = (*src & 0x001f) << 3;
}
src = (uint16 *)((uint8 *)bits + row * bytesPerRow);
png_write_row(png, tempRow);
}
break;
}
case B_CMAP8:
{
// create file without alpha channel
png_set_IHDR(png, info, width, height, 8, PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
// convert from 8 bit CMAP to 24 bit RGB while saving
const color_map *colorMap = system_colors();
uint8* src = (uint8 *)bits;
int dstRowBytes = width * 3;
png_byte tempRow[dstRowBytes];
for (int row = 0; row < height; row++) {
for (int i = 0; i < dstRowBytes; i += 3, src++) {
tempRow[i + 2] = colorMap->color_list[*src].red;
tempRow[i + 1] = colorMap->color_list[*src].green;
tempRow[i] = colorMap->color_list[*src].blue;
}
src = (uint8 *)bits + row * bytesPerRow;
png_write_row(png, tempRow);
}
break;
}
default: default:
{ {
TRACE(("Unsupported color space %lx\n", space)); TRACE(("Unsupported color space %x\n", space));
png_destroy_write_struct(&png, NULL); png_destroy_write_struct(&png, NULL);
fclose(file); fclose(file);
return B_ERROR; return B_ERROR;