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Merge branch 'psp-tgapal' into psp

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2022-10-18 09:51:35 +03:00
parent 5832d017c7 122a11005b
commit 238687affa
1 changed files with 48 additions and 16 deletions
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64
engine/common/imagelib/img_tga.c
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@@ -24,7 +24,7 @@ Image_LoadTGA
*/
qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesize )
{
int i, columns, rows, row_inc, row, col;
int i, columns, rows, row_inc, row, col, bpp = 1;
byte *buf_p, *pixbuf, *targa_rgba;
rgba_t palette[256];
byte red = 0, green = 0, blue = 0, alpha = 0;
@@ -32,6 +32,7 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
int reflectivity[3] = { 0, 0, 0 };
qboolean compressed;
tga_t targa_header;
int palIndex = 0;
if( filesize < sizeof( tga_t ))
return false;
@@ -55,8 +56,6 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
// check for tga file
if( !Image_ValidSize( name )) return false;
image.type = PF_RGBA_32; // always exctracted to 32-bit buffer
if( targa_header.image_type == 1 || targa_header.image_type == 9 )
{
// uncompressed colormapped image
@@ -119,11 +118,35 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
return false;
}
}
else
{
Con_DPrintf( S_ERROR "Image_LoadTGA: (%s) Type %i not supported\n", name, targa_header.image_type );
return false;
}
columns = targa_header.width;
rows = targa_header.height;
image.size = image.width * image.height * 4;
if( Image_CheckFlag( IL_KEEP_8BIT ) && ( targa_header.image_type == 1 || targa_header.image_type == 9 ))
{
pixbuf = image.palette = Mem_Malloc( host.imagepool, 1024 );
for( i = 0; i < targa_header.colormap_length; i++ )
{
*pixbuf++ = palette[i][0];
*pixbuf++ = palette[i][1];
*pixbuf++ = palette[i][2];
*pixbuf++ = palette[i][3];
}
image.type = PF_INDEXED_32;
}
else
{
image.palette = NULL;
image.type = PF_RGBA_32;
bpp = 4;
}
image.size = image.width * image.height * bpp;
targa_rgba = image.rgba = Mem_Malloc( host.imagepool, image.size );
// if bit 5 of attributes isn't set, the image has been stored from bottom to top
@@ -134,8 +157,8 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
}
else
{
pixbuf = targa_rgba + ( rows - 1 ) * columns * 4;
row_inc = -columns * 4 * 2;
pixbuf = targa_rgba + ( rows - 1 ) * columns * bpp;
row_inc = -columns * bpp * 2;
}
compressed = ( targa_header.image_type == 9 || targa_header.image_type == 10 || targa_header.image_type == 11 );
@@ -161,13 +184,13 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
case 1:
case 9:
// colormapped image
blue = *buf_p++;
if( blue < targa_header.colormap_length )
palIndex = *buf_p++;
if( palIndex < targa_header.colormap_length )
{
red = palette[blue][0];
green = palette[blue][1];
alpha = palette[blue][3];
blue = palette[blue][2];
red = palette[palIndex][0];
green = palette[palIndex][1];
blue = palette[palIndex][2];
alpha = palette[palIndex][3];
if( alpha != 255 ) image.flags |= IMAGE_HAS_ALPHA;
}
break;
@@ -208,10 +231,18 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
reflectivity[1] += green;
reflectivity[2] += blue;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alpha;
if( image.type == PF_INDEXED_32 || image.type == PF_INDEXED_24 )
{
*pixbuf++ = palIndex;
}
else
{
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alpha;
}
if( ++col == columns )
{
// run spans across rows
@@ -223,6 +254,7 @@ qboolean Image_LoadTGA( const char *name, const byte *buffer, fs_offset_t filesi
}
VectorDivide( reflectivity, ( image.width * image.height ), image.fogParams );
if( image.palette ) Image_GetPaletteBMP( image.palette );
image.depth = 1;
return true;