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fix screenshots that have only doubleheight set and not double width

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2297
This commit is contained in:
Peter Veenstra 2005-09-01 19:48:37 +00:00
parent 121b29e6f1
commit 75ee82edb4
1 changed files with 16 additions and 9 deletions
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25
src/gui/render.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: render.cpp,v 1.31 2005-02-10 10:21:07 qbix79 Exp $ */
/* $Id: render.cpp,v 1.32 2005-09-01 19:48:37 qbix79 Exp $ */
#include <sys/types.h>
#include <dirent.h>
@ -97,8 +97,12 @@ static void TakeScreenShot(Bit8u * bitmap) {
png_bytep * row_pointers;
png_color palette[256];
Bitu i;
Bitu fix_double_scale = 1;//variable to compensate for only doubleheight
/* Remove this if we save rendered screens. instead of pre-rendered */
if(render.src.dblh && !render.src.dblw) fix_double_scale = 2;
/* Find a filename to open */
/* Open the actual file */
FILE * fp=OpenCaptureFile("Screenshot",".png");
if (!fp) return;
@ -106,10 +110,10 @@ static void TakeScreenShot(Bit8u * bitmap) {
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL,NULL, NULL);
if (!png_ptr) return;
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr) {
if (!info_ptr) {
png_destroy_write_struct(&png_ptr,(png_infopp)NULL);
return;
}
}
/* Finalize the initing of png library */
png_init_io(png_ptr, fp);
@ -123,7 +127,7 @@ static void TakeScreenShot(Bit8u * bitmap) {
png_set_compression_buffer_size(png_ptr, 8192);
if (render.shot.bpp==8) {
png_set_IHDR(png_ptr, info_ptr, render.shot.width, render.shot.height,
png_set_IHDR(png_ptr, info_ptr, render.shot.width, (render.shot.height*fix_double_scale),
8, PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
for (i=0;i<256;i++) {
@ -133,15 +137,18 @@ static void TakeScreenShot(Bit8u * bitmap) {
}
png_set_PLTE(png_ptr, info_ptr, palette,256);
} else {
png_set_IHDR(png_ptr, info_ptr, render.shot.width, render.shot.height,
png_set_IHDR(png_ptr, info_ptr, render.shot.width, (render.shot.height*fix_double_scale),
render.shot.bpp, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
}
/*Allocate an array of scanline pointers*/
row_pointers=(png_bytep*)malloc(render.shot.height*sizeof(png_bytep));
for (i=0;i<render.shot.height;i++) {
row_pointers[i]=(bitmap+i*render.shot.rowlen);
row_pointers=(png_bytep*)malloc(render.shot.height*fix_double_scale*sizeof(png_bytep));
for (i = 0;i < render.shot.height;i++) {
row_pointers[fix_double_scale*i] = (bitmap+i*render.shot.rowlen);
if(fix_double_scale == 2) row_pointers[fix_double_scale*i+1] = (bitmap+i*render.shot.rowlen);
}
/*tell the png library what to encode.*/
png_set_rows(png_ptr, info_ptr, row_pointers);