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dquakeplus/source/psp/gu/gu_images.cpp

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/*
Copyright (C) 2008-2009 Crow_bar.
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 2
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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <png.h>
extern "C"
{
#include <jpeglib.h>
#include "../../quakedef.h"
}
#include <pspgu.h>
cvar_t jpeg_compression_level = {"jpeg_compression_level", "75"};
int image_width;
int image_height;
static int image_palette_type = 0;
static byte image_palette[1024];
#define IMAGE_MAX_DIMENSIONS 4096
/*
=============
LoadJPG
=============
*/
byte *LoadJPG (FILE *fin, int matchwidth, int matchheight)
{
int i, row_stride;
byte *data, *scanline, *p;
struct jpeg_decompress_struct cinfo;
struct jpeg_error_mgr jerr;
cinfo.err = jpeg_std_error (&jerr);
jpeg_create_decompress (&cinfo);
jpeg_stdio_src (&cinfo, fin);
jpeg_read_header (&cinfo, true);
jpeg_start_decompress (&cinfo);
if (cinfo.image_width > IMAGE_MAX_DIMENSIONS || cinfo.image_height > IMAGE_MAX_DIMENSIONS)
{
return NULL;
}
if ((matchwidth && cinfo.image_width != matchwidth) || (matchheight && cinfo.image_height != matchheight))
{
jpeg_finish_decompress (&cinfo);
jpeg_destroy_decompress (&cinfo);
return NULL;
}
Con_Printf("JPG: Allocating data\n");
data = static_cast<byte*>(Hunk_Alloc(cinfo.image_width * cinfo.image_height * 4));
row_stride = cinfo.output_width * cinfo.output_components;
scanline = static_cast<byte*>(Hunk_Alloc(row_stride));
Con_Printf("JPG: done allocating data\n");
p = data;
while (cinfo.output_scanline < cinfo.output_height)
{
jpeg_read_scanlines (&cinfo, &scanline, 1);
// convert the image to RGBA
switch (cinfo.output_components)
{
// RGB images
case 3:
for (i=0 ; i<row_stride ; )
{
*p++ = scanline[i++];
*p++ = scanline[i++];
*p++ = scanline[i++];
*p++ = 255;
}
break;
// greyscale images (default to it, just in case)
case 1:
default:
for (i=0 ; i<row_stride ; i++)
{
*p++ = scanline[i];
*p++ = scanline[i];
*p++ = scanline[i];
*p++ = 255;
}
break;
}
}
image_width = cinfo.image_width;
image_height = cinfo.image_height;
jpeg_finish_decompress (&cinfo);
jpeg_destroy_decompress (&cinfo);
fclose (fin);
return data;
}
/*
=============
Image_WriteJPEG
=============
*/
int Image_WriteJPEG (char *filename, int compression, byte *pixels, int width, int height)
{
char name[MAX_OSPATH];
byte *scanline;
FILE *fout;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
Q_snprintfz (name, MAX_OSPATH, "%s/%s", com_gamedir, filename);
if (!(fout = fopen(name, "wb")))
{
COM_CreatePath (name);
if (!(fout = fopen(name, "wb")))
return false;
}
cinfo.err = jpeg_std_error (&jerr);
jpeg_create_compress (&cinfo);
jpeg_stdio_dest (&cinfo, fout);
cinfo.image_width = abs(width);
cinfo.image_height = height;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults (&cinfo);
jpeg_set_quality (&cinfo, bound(0, compression, 100), true);
jpeg_start_compress (&cinfo, true);
while (cinfo.next_scanline < height)
{
scanline = &pixels[cinfo.next_scanline*width*3];
jpeg_write_scanlines (&cinfo, &scanline, 1);
}
jpeg_finish_compress (&cinfo);
jpeg_destroy_compress (&cinfo);
fclose (fout);
return true;
}
/*
=================================================================
PCX Loading
mem fix by Crow_bar.
=================================================================
*/
typedef struct
{
char manufacturer;
char version;
char encoding;
char bits_per_pixel;
unsigned short xmin,ymin,xmax,ymax;
unsigned short hres,vres;
unsigned char palette[48];
char reserved;
char color_planes;
unsigned short bytes_per_line;
unsigned short palette_type;
char filler[58];
unsigned char data; // unbounded
} pcx_t;
byte* LoadPCX(FILE* f, int matchwidth, int matchheight) {
pcx_t pcxbuf;
fread(&pcxbuf, 1, sizeof(pcxbuf), f);
pcx_t* pcx = &pcxbuf;
if (pcx->manufacturer != 0x0a || pcx->version != 5 || pcx->encoding != 1 ||
pcx->bits_per_pixel != 8 || pcx->xmax >= 320 || pcx->ymax >= 256) {
Con_Printf("Bad pcx file\n");
return nullptr;
}
if (matchwidth && (pcx->xmax + 1) != matchwidth) {
fclose(f);
return nullptr;
}
if (matchheight && (pcx->ymax + 1) != matchheight) {
fclose(f);
return nullptr;
}
fseek(f, -768, SEEK_END);
byte palette[768];
fread(palette, 1, 768, f);
fseek(f, sizeof(pcxbuf) - 4, SEEK_SET);
int count = (pcx->xmax + 1) * (pcx->ymax + 1);
byte* image_rgba = static_cast<byte*>(Q_malloc(4 * count));
byte* pix = image_rgba;
for (int y = 0; y <= pcx->ymax; y++) {
for (int x = 0; x <= pcx->xmax;) {
int dataByte = fgetc(f);
int runLength = 1;
if ((dataByte & 0xC0) == 0xC0) {
runLength = dataByte & 0x3F;
dataByte = fgetc(f);
}
while (runLength-- > 0) {
byte* color = palette + dataByte * 3;
pix[0] = color[0];
pix[1] = color[1];
pix[2] = color[2];
pix[3] = 0xFF; // set alpha to 255
pix += 4;
x++;
}
}
}
image_width = pcx->xmax + 1;
image_height = pcx->ymax + 1;
//memcpy_vfpu(image_palette, palette, sizeof(palette));
//image_palette_type = PAL_RGB;
fclose(f);
return image_rgba;
}
/*
================
LoadWal
================
*/
typedef struct miptexq2_s
{
char name[32];
unsigned width, height;
unsigned offsets[4]; // four mip maps stored
char animname[32]; // next frame in animation chain
int flags;
int contents;
int value;
} miptexq2_t;
byte *LoadWAL (char *name)
{
miptexq2_t *mt;
int width, height, ofs, size;
byte *data;
mt = (miptexq2_t*)COM_LoadFile (name, 0);
if (!mt)
{
return NULL;
}
width = LittleLong (mt->width);
height = LittleLong (mt->height);
ofs = LittleLong (mt->offsets[0]);
size = width * height;
data = static_cast<byte*>(Q_malloc(size));
memcpy_vfpu(data, (byte *)mt + ofs, size);
image_palette_type = PAL_Q2;
Z_Free(mt);
return data;
}
/*
=========================================================
Targa
=========================================================
*/
#define TGA_MAXCOLORS 16384
/* Definitions for image types. */
#define TGA_Null 0 /* no image data */
#define TGA_Map 1 /* Uncompressed, color-mapped images. */
#define TGA_RGB 2 /* Uncompressed, RGB images. */
#define TGA_Mono 3 /* Uncompressed, black and white images. */
#define TGA_RLEMap 9 /* Runlength encoded color-mapped images. */
#define TGA_RLERGB 10 /* Runlength encoded RGB images. */
#define TGA_RLEMono 11 /* Compressed, black and white images. */
#define TGA_CompMap 32 /* Compressed color-mapped data, using Huffman, Delta, and runlength encoding. */
#define TGA_CompMap4 33 /* Compressed color-mapped data, using Huffman, Delta, and runlength encoding. 4-pass quadtree-type process. */
/* Definitions for interleave flag. */
#define TGA_IL_None 0 /* non-interleaved. */
#define TGA_IL_Two 1 /* two-way (even/odd) interleaving */
#define TGA_IL_Four 2 /* four way interleaving */
#define TGA_IL_Reserved 3 /* reserved */
/* Definitions for origin flag */
#define TGA_O_UPPER 0 /* Origin in lower left-hand corner. */
#define TGA_O_LOWER 1 /* Origin in upper left-hand corner. */
typedef struct _TargaHeader
{
unsigned char id_length, colormap_type, image_type;
unsigned short colormap_index, colormap_length;
unsigned char colormap_size;
unsigned short x_origin, y_origin, width, height;
unsigned char pixel_size, attributes;
} TargaHeader;
int fgetLittleShort (FILE *f)
{
byte b1, b2;
b1 = fgetc(f);
b2 = fgetc(f);
return (short)(b1 + b2*256);
}
int fgetLittleLong (FILE *f)
{
byte b1, b2, b3, b4;
b1 = fgetc(f);
b2 = fgetc(f);
b3 = fgetc(f);
b4 = fgetc(f);
return b1 + (b2<<8) + (b3<<16) + (b4<<24);
}
/*
=============
LoadTGA
=============
*/
byte *LoadTGA (FILE *fin, int matchwidth, int matchheight)
{
int w, h, x, y, realrow, truerow, baserow, i, temp1, temp2, pixel_size, map_idx;
int RLE_count, RLE_flag, size, interleave, origin;
bool mapped, rlencoded;
byte *data, *dst, r, g, b, a, j, k, l, *ColorMap;
TargaHeader header;
header.id_length = fgetc (fin);
header.colormap_type = fgetc (fin);
header.image_type = fgetc (fin);
header.colormap_index = fgetLittleShort (fin);
header.colormap_length = fgetLittleShort (fin);
header.colormap_size = fgetc (fin);
header.x_origin = fgetLittleShort (fin);
header.y_origin = fgetLittleShort (fin);
header.width = fgetLittleShort (fin);
header.height = fgetLittleShort (fin);
header.pixel_size = fgetc (fin);
header.attributes = fgetc (fin);
if (header.width > IMAGE_MAX_DIMENSIONS || header.height > IMAGE_MAX_DIMENSIONS)
{
Con_DPrintf ("TGA image %s exceeds maximum supported dimensions\n");
fclose (fin);
return NULL;
}
if ((matchwidth && header.width != matchwidth) || (matchheight && header.height != matchheight))
{
fclose (fin);
return NULL;
}
if (header.id_length != 0)
fseek (fin, header.id_length, SEEK_CUR);
/* validate TGA type */
switch (header.image_type)
{
case TGA_Map:
case TGA_RGB:
case TGA_Mono:
case TGA_RLEMap:
case TGA_RLERGB:
case TGA_RLEMono:
break;
default:
Con_DPrintf ("Unsupported TGA image %s: Only type 1 (map), 2 (RGB), 3 (mono), 9 (RLEmap), 10 (RLERGB), 11 (RLEmono) TGA images supported\n");
fclose (fin);
return NULL;
}
/* validate color depth */
switch (header.pixel_size)
{
case 8:
case 15:
case 16:
case 24:
case 32:
break;
default:
Con_DPrintf ("Unsupported TGA image %s: Only 8, 15, 16, 24 or 32 bit images (with colormaps) supported\n");
fclose (fin);
return NULL;
}
r = g = b = a = l = 0;
/* if required, read the color map information. */
ColorMap = NULL;
mapped = (header.image_type == TGA_Map || header.image_type == TGA_RLEMap) && header.colormap_type == 1;
if (mapped)
{
/* validate colormap size */
switch (header.colormap_size)
{
case 8:
case 15:
case 16:
case 32:
case 24:
break;
default:
Con_DPrintf ("Unsupported TGA image %s: Only 8, 15, 16, 24 or 32 bit colormaps supported\n");
fclose (fin);
return NULL;
}
temp1 = header.colormap_index;
temp2 = header.colormap_length;
if ((temp1 + temp2 + 1) >= TGA_MAXCOLORS)
{
fclose (fin);
return NULL;
}
ColorMap = static_cast<byte*>(Q_malloc (TGA_MAXCOLORS * 4));
map_idx = 0;
for (i = temp1 ; i < temp1 + temp2 ; ++i, map_idx += 4)
{
/* read appropriate number of bytes, break into rgb & put in map. */
switch (header.colormap_size)
{
case 8: /* grey scale, read and triplicate. */
r = g = b = getc (fin);
a = 255;
break;
case 15: /* 5 bits each of red green and blue. */
/* watch byte order. */
j = getc (fin);
k = getc (fin);
l = ((unsigned int)k << 8) + j;
r = (byte)(((k & 0x7C) >> 2) << 3);
g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
b = (byte)((j & 0x1F) << 3);
a = 255;
break;
case 16: /* 5 bits each of red green and blue, 1 alpha bit. */
/* watch byte order. */
j = getc (fin);
k = getc (fin);
l = ((unsigned int)k << 8) + j;
r = (byte)(((k & 0x7C) >> 2) << 3);
g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
b = (byte)((j & 0x1F) << 3);
a = (k & 0x80) ? 255 : 0;
break;
case 24: /* 8 bits each of blue, green and red. */
b = getc (fin);
g = getc (fin);
r = getc (fin);
a = 255;
l = 0;
break;
case 32: /* 8 bits each of blue, green, red and alpha. */
b = getc (fin);
g = getc (fin);
r = getc (fin);
a = getc (fin);
l = 0;
break;
}
ColorMap[map_idx+0] = r;
ColorMap[map_idx+1] = g;
ColorMap[map_idx+2] = b;
ColorMap[map_idx+3] = a;
}
}
/* check run-length encoding. */
rlencoded = (header.image_type == TGA_RLEMap || header.image_type == TGA_RLERGB || header.image_type == TGA_RLEMono);
RLE_count = RLE_flag = 0;
image_width = w = header.width;
image_height = h = header.height;
size = w * h * 4;
data = static_cast<byte*>(calloc (size, 1));
/* read the Targa file body and convert to portable format. */
pixel_size = header.pixel_size;
origin = (header.attributes & 0x20) >> 5;
interleave = (header.attributes & 0xC0) >> 6;
truerow = baserow = 0;
for (y=0 ; y<h ; y++)
{
realrow = truerow;
if (origin == TGA_O_UPPER)
realrow = h - realrow - 1;
dst = data + realrow * w * 4;
for (x=0 ; x<w ; x++)
{
/* check if run length encoded. */
if (rlencoded)
{
if (!RLE_count)
{
/* have to restart run. */
i = getc (fin);
RLE_flag = (i & 0x80);
if (!RLE_flag) // stream of unencoded pixels
RLE_count = i + 1;
else // single pixel replicated
RLE_count = i - 127;
/* decrement count & get pixel. */
--RLE_count;
}
else
{
/* have already read count & (at least) first pixel. */
--RLE_count;
if (RLE_flag)
/* replicated pixels. */
goto PixEncode;
}
}
/* read appropriate number of bytes, break into RGB. */
switch (pixel_size)
{
case 8: /* grey scale, read and triplicate. */
r = g = b = l = getc (fin);
a = 255;
break;
case 15: /* 5 bits each of red green and blue. */
/* watch byte order. */
j = getc (fin);
k = getc (fin);
l = ((unsigned int)k << 8) + j;
r = (byte)(((k & 0x7C) >> 2) << 3);
g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
b = (byte)((j & 0x1F) << 3);
a = 255;
break;
case 16: /* 5 bits each of red green and blue, 1 alpha bit. */
/* watch byte order. */
j = getc (fin);
k = getc (fin);
l = ((unsigned int)k << 8) + j;
r = (byte)(((k & 0x7C) >> 2) << 3);
g = (byte)((((k & 0x03) << 3) + ((j & 0xE0) >> 5)) << 3);
b = (byte)((j & 0x1F) << 3);
a = (k & 0x80) ? 255 : 0;
break;
case 24: /* 8 bits each of blue, green and red. */
b = getc (fin);
g = getc (fin);
r = getc (fin);
a = 255;
l = 0;
break;
case 32: /* 8 bits each of blue, green, red and alpha. */
b = getc (fin);
g = getc (fin);
r = getc (fin);
a = getc (fin);
l = 0;
break;
default:
Con_DPrintf ("Malformed TGA image: Illegal pixel_size '%d'\n", pixel_size);
fclose (fin);
free (data);
if (mapped)
free (ColorMap);
return NULL;
}
PixEncode:
if (mapped)
{
map_idx = l * 4;
*dst++ = ColorMap[map_idx+0];
*dst++ = ColorMap[map_idx+1];
*dst++ = ColorMap[map_idx+2];
*dst++ = ColorMap[map_idx+3];
}
else
{
*dst++ = r;
*dst++ = g;
*dst++ = b;
*dst++ = a;
}
}
if (interleave == TGA_IL_Four)
truerow += 4;
else if (interleave == TGA_IL_Two)
truerow += 2;
else
truerow++;
if (truerow >= h)
truerow = ++baserow;
}
if (mapped)
free (ColorMap);
fclose (fin);
return data;
}
/*
=========================================================
PNG
=========================================================
*/
static void PNG_IO_user_read_data (png_structp png_ptr, png_bytep data, png_size_t length)
{
FILE *f = (FILE *)png_get_io_ptr(png_ptr);
fread (data, 1, length, f);
}
/*
static void PNG_IO_user_write_data (png_structp png_ptr, png_bytep data, png_size_t length)
{
FILE *f = (FILE *)png_get_io_ptr(png_ptr);
fwrite (data, 1, length, f);
}
static void PNG_IO_user_flush_data (png_structp png_ptr)
{
FILE *f = (FILE *)png_get_io_ptr(png_ptr);
fflush (f);
}
*/
/*
=============
LoadPNG
=============
*/
void* Hunk_AllocPNG(png_struct* tmp, unsigned int num_bytes)
{
void* ptr = Hunk_Alloc(num_bytes);
return ptr;
}
// Libpng requires a function for freeing memory, hunk gets free'd later so keep this empty.
void Hunk_FreePNG(png_struct* tmp, void* ptr)
{
return;
}
byte *LoadPNG (FILE *fin, int matchwidth, int matchheight)
{
int y, width, height, bitdepth, colortype;
int interlace, compression, filter, bytesperpixel;
byte header[8], **rowpointers, *data;
png_structp png_ptr;
png_infop pnginfo;
unsigned long rowbytes;
fread (header, 1, 8, fin);
if (png_sig_cmp(header, 0, 8))
{
Con_DPrintf ("Invalid PNG image\n");
fclose (fin);
return NULL;
}
if (!(png_ptr = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL, NULL, Hunk_AllocPNG, Hunk_FreePNG)))
{
fclose (fin);
return NULL;
}
if (!(pnginfo = png_create_info_struct(png_ptr)))
{
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
fclose (fin);
return NULL;
}
/* naievil -- invalid use of incomplete type
if (setjmp(png_ptr->jmpbuf))
{
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
fclose (fin);
return NULL;
}
*/
png_set_read_fn (png_ptr, fin, PNG_IO_user_read_data);
png_set_sig_bytes (png_ptr, 8);
png_read_info (png_ptr, pnginfo);
png_get_IHDR (png_ptr, pnginfo, (png_uint_32 *)&width, (png_uint_32 *)&height, &bitdepth, &colortype, &interlace, &compression, &filter);
if (width > IMAGE_MAX_DIMENSIONS || height > IMAGE_MAX_DIMENSIONS)
{
Con_DPrintf ("PNG image exceeds maximum supported dimensions\n");
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
fclose (fin);
return NULL;
}
if ((matchwidth && width != matchwidth) || (matchheight && height != matchheight))
{
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
fclose (fin);
return NULL;
}
if (colortype == PNG_COLOR_TYPE_PALETTE)
{
png_set_palette_to_rgb (png_ptr);
png_set_filler (png_ptr, 255, PNG_FILLER_AFTER);
}
if (colortype == PNG_COLOR_TYPE_GRAY && bitdepth < 8)
png_set_expand_gray_1_2_4_to_8 (png_ptr);
if (png_get_valid(png_ptr, pnginfo, PNG_INFO_tRNS))
png_set_tRNS_to_alpha (png_ptr);
if (colortype == PNG_COLOR_TYPE_GRAY || colortype == PNG_COLOR_TYPE_GRAY_ALPHA)
png_set_gray_to_rgb (png_ptr);
if (colortype != PNG_COLOR_TYPE_RGBA)
png_set_filler (png_ptr, 255, PNG_FILLER_AFTER);
if (bitdepth < 8)
png_set_expand (png_ptr);
else if (bitdepth == 16)
png_set_strip_16 (png_ptr);
png_read_update_info (png_ptr, pnginfo);
rowbytes = png_get_rowbytes (png_ptr, pnginfo);
bytesperpixel = png_get_channels (png_ptr, pnginfo);
bitdepth = png_get_bit_depth (png_ptr, pnginfo);
if (bitdepth != 8 || bytesperpixel != 4)
{
Con_DPrintf ("Unsupported PNG image: Bad color depth and/or bpp\n");
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
fclose (fin);
return NULL;
}
data = static_cast<byte*>(Hunk_Alloc(height * rowbytes));
rowpointers = static_cast<byte**>(Hunk_Alloc(height * sizeof(*rowpointers)));
for (y=0 ; y<height ; y++)
rowpointers[y] = data + y * rowbytes;
image_width = width;
image_height = height;
png_read_image (png_ptr, rowpointers);
png_read_end (png_ptr, NULL);
png_destroy_read_struct (&png_ptr, &pnginfo, NULL);
fclose (fin);
return data;
}
/*
=========================================================
BMP LOADING
from Q3,
modify by Crow_bar!
=========================================================
*/
typedef struct
{
char id[2];
unsigned long fileSize;
unsigned long reserved0;
unsigned long bitmapDataOffset;
unsigned long bitmapHeaderSize;
unsigned long width;
unsigned long height;
unsigned short planes;
unsigned short bitsPerPixel;
unsigned long compression;
unsigned long bitmapDataSize;
unsigned long hRes;
unsigned long vRes;
unsigned long colors;
unsigned long importantColors;
unsigned char palette[256][4];
} BMPHeader_t;
/*
=============
LoadBMP
=============
*/
byte *LoadBMP (FILE *fin, int matchwidth, int matchheight)
{
int columns, rows, numPixels;
byte *pixbuf;
int row, column;
BMPHeader_t bmpHeader;
byte *bmpRGBA;
bmpHeader.id[0] = fgetc(fin);
bmpHeader.id[1] = fgetc(fin);
bmpHeader.fileSize = fgetLittleLong(fin);
bmpHeader.reserved0 = fgetLittleLong(fin);
bmpHeader.bitmapDataOffset = fgetLittleLong(fin);
bmpHeader.bitmapHeaderSize = fgetLittleLong(fin);
bmpHeader.width = fgetLittleLong(fin);
bmpHeader.height = fgetLittleLong(fin);
bmpHeader.planes = fgetLittleShort(fin);
bmpHeader.bitsPerPixel = fgetLittleShort(fin);
bmpHeader.compression = fgetLittleLong(fin);
bmpHeader.bitmapDataSize = fgetLittleLong(fin);
bmpHeader.hRes = fgetLittleLong(fin);
bmpHeader.vRes = fgetLittleLong(fin);
bmpHeader.colors = fgetLittleLong(fin);
bmpHeader.importantColors = fgetLittleLong(fin);
if ((matchwidth && bmpHeader.width != matchwidth) || (matchheight && bmpHeader.height != matchheight))
{
fclose (fin);
return NULL;
}
//if (bmpHeader.fileSize != 0 )
//{
// fseek (fin, bmpHeader.fileSize, SEEK_CUR);
//}
if ( bmpHeader.bitsPerPixel == 8 )
{
//buf_p += 1024;
memcpy( bmpHeader.palette, (const void*)fgetc(fin), sizeof( bmpHeader.palette ) );
//Con_Printf("Not support 8bpp\n");
}
if ( bmpHeader.id[0] != 'B' && bmpHeader.id[1] != 'M' )
{
Sys_Error("LoadBMP: only Windows-style BMP files supported \n");
}
if ( bmpHeader.compression != 0 )
{
Sys_Error("LoadBMP: only uncompressed BMP files supported \n");
}
if ( bmpHeader.bitsPerPixel < 8 )
{
Sys_Error("LoadBMP: monochrome and 4-bit BMP files not supported \n");
}
image_width = columns = bmpHeader.width;
image_height = rows = bmpHeader.height;
if ( rows < 0 )
rows = -rows;
numPixels = columns * rows;
bmpRGBA = static_cast<byte*>(Q_malloc(numPixels * 4));
for ( row = rows-1; row >= 0; row-- )
{
pixbuf = bmpRGBA + row*columns*4;
for ( column = 0; column < columns; column++ )
{
unsigned char red, green, blue, alpha;
int palIndex;
unsigned short shortPixel;
switch ( bmpHeader.bitsPerPixel )
{
case 8:
palIndex = getc(fin);
*pixbuf++ = bmpHeader.palette[palIndex][2];
*pixbuf++ = bmpHeader.palette[palIndex][1];
*pixbuf++ = bmpHeader.palette[palIndex][0];
*pixbuf++ = 0xff;
break;
case 16:
shortPixel = * ( unsigned short * ) pixbuf;
pixbuf += 2;
*pixbuf++ = ( shortPixel & ( 31 << 10 ) ) >> 7;
*pixbuf++ = ( shortPixel & ( 31 << 5 ) ) >> 2;
*pixbuf++ = ( shortPixel & ( 31 ) ) << 3;
*pixbuf++ = 0xff;
break;
case 24:
blue = getc (fin);
green = getc (fin);
red = getc (fin);
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = 255;
break;
case 32:
blue = getc (fin);
green = getc (fin);
red = getc (fin);
alpha = getc (fin);
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alpha;
break;
default:
Sys_Error("LoadBMP: illegal pixel_size '%d' in file\n", bmpHeader.bitsPerPixel);
break;
}
}
}
fclose(fin);
return bmpRGBA;
}
/*
=============
loadimagepixels
=============
*/
// HACK HACK HACK
byte* loadimagepixels (char* filename, qboolean complain, int matchwidth, int matchheight)
{
FILE *f;
char basename[128], name[128];
byte *c;
if (complain == qfalse)
COM_StripExtension(filename, basename); // strip the extension to allow TGA and PCX
else
strcpy(basename, filename);
c = (byte*)(basename);
while (*c)
{
if (*c == '*')
*c = '+';
c++;
}
com_netpath[0] = 0;
/*
sprintf (name, "%s.wal", basename);
if (data = LoadWAL(name))
return data;
*/
sprintf (name, "%s.tga", basename);
FS_FOpenFile (name, &f);
if (f)
return LoadTGA (f, matchwidth, matchheight);
sprintf (name, "%s.pcx", basename);
FS_FOpenFile (name, &f);
if (f)
return LoadPCX (f, matchwidth, matchheight);
sprintf (name, "%s.jpg", basename);
FS_FOpenFile (name, &f);
if (f)
{
return LoadJPG (f, matchwidth, matchheight);
}
sprintf (name, "%s.png", basename);
FS_FOpenFile (name, &f);
if (f)
return LoadPNG (f, matchwidth, matchheight);
sprintf (name, "%s.bmp", basename);
FS_FOpenFile (name, &f);
if (f)
return LoadBMP (f, matchwidth, matchheight);
//if (complain)
// Con_Printf ("Couldn't load %s .tga .jpg .bmp .png \n", filename);
return NULL;
}
/*
=============
loadtextureimage
=============
*/
int loadtextureimage (char* filename, int matchwidth, int matchheight, qboolean complain, int filter)
{
int texture_index;
byte *data;
int hunk_start = Hunk_LowMark();
data = loadimagepixels (filename, complain, matchwidth, matchheight);
int hunk_stop = Hunk_LowMark();
if(!data)
{
return 0;
}
if(image_palette_type)
{
texture_index = GL_LoadPalTex (filename, image_width, image_height, data, qtrue, filter, 0, (byte *)image_palette, image_palette_type);
memset(image_palette, 0, sizeof(image_palette)); // clear temp pal
image_palette_type = 0;
}
else
{
texture_index = GL_LoadImages (filename, image_width, image_height, data, qtrue, filter, 0, 4);
}
// Only free the hunk if it was used.
if (hunk_start != hunk_stop)
Hunk_FreeToLowMark(hunk_start);
else
free(data);
return texture_index;
}
// Hacky thing to only load a top half of an image for skybox sides, hard to imagine other use for this
int loadskyboxsideimage (char* filename, int matchwidth, int matchheight, qboolean complain, int filter)
{
int texture_index;
byte *data;
int hunk_start = Hunk_LowMark();
data = loadimagepixels (filename, complain, matchwidth, matchheight);
int hunk_stop = Hunk_LowMark();
if(!data)
{
return 0;
}
int newheight = image_height * 0.5;
texture_index = GL_LoadImages (filename, image_width, newheight, data, qtrue, filter, 0, 4);
// Only free the hunk if it was used.
if (hunk_start != hunk_stop)
Hunk_FreeToLowMark(hunk_start);
else
free(data);
return texture_index;
}
/*
=============
loadrgbafrompal
=============
*/
int loadrgbafrompal (char* name, int width, int height, byte* data)
{
int pixels = width * height;
byte* rgbadata = (byte*)Q_malloc(pixels * 4);
for(int i = 0; i < pixels; i++) {
byte palette_index = data[i];
rgbadata[i * 4] = host_basepal[palette_index * 3 + 0];
rgbadata[i * 4 + 1] = host_basepal[palette_index * 3 + 1];
rgbadata[i * 4 + 2] = host_basepal[palette_index * 3 + 2];
rgbadata[i * 4 + 3] = 255; // Set alpha to opaque
}
int ret = GL_LoadImages(name, width, height, rgbadata, qtrue, GU_LINEAR, 0, 4);
free(rgbadata);
return ret;
}
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