mirror of
https://github.com/w23/xash3d-fwgs
synced 2024-12-15 13:41:33 +01:00
111 lines
4.4 KiB
C
111 lines
4.4 KiB
C
#pragma once
|
|
/*
|
|
========================================================================
|
|
|
|
internal image format
|
|
|
|
typically expanded to rgba buffer
|
|
NOTE: number at end of pixelformat name it's a total bitscount e.g. PF_RGB_24 == PF_RGB_888
|
|
========================================================================
|
|
*/
|
|
#define ImageRAW( type ) (type == PF_RGBA_32 || type == PF_BGRA_32 || type == PF_RGB_24 || type == PF_BGR_24 || type == PF_LUMINANCE)
|
|
#define ImageDXT( type ) (type == PF_DXT1 || type == PF_DXT3 || type == PF_DXT5 || type == PF_ATI2)
|
|
|
|
typedef enum
|
|
{
|
|
PF_UNKNOWN = 0,
|
|
PF_INDEXED_24, // inflated palette (768 bytes)
|
|
PF_INDEXED_32, // deflated palette (1024 bytes)
|
|
PF_RGBA_32, // normal rgba buffer
|
|
PF_BGRA_32, // big endian RGBA (MacOS)
|
|
PF_RGB_24, // uncompressed dds or another 24-bit image
|
|
PF_BGR_24, // big-endian RGB (MacOS)
|
|
PF_LUMINANCE,
|
|
PF_DXT1, // s3tc DXT1 format
|
|
PF_DXT3, // s3tc DXT3 format
|
|
PF_DXT5, // s3tc DXT5 format
|
|
PF_ATI2, // latc ATI2N format
|
|
PF_TOTALCOUNT, // must be last
|
|
} pixformat_t;
|
|
|
|
typedef struct bpc_desc_s
|
|
{
|
|
int format; // pixelformat
|
|
char name[16]; // used for debug
|
|
uint glFormat; // RGBA format
|
|
int bpp; // channels (e.g. rgb = 3, rgba = 4)
|
|
} bpc_desc_t;
|
|
|
|
// imagelib global settings
|
|
typedef enum
|
|
{
|
|
IL_USE_LERPING = BIT(0), // lerping images during resample
|
|
IL_KEEP_8BIT = BIT(1), // don't expand paletted images
|
|
IL_ALLOW_OVERWRITE = BIT(2), // allow to overwrite stored images
|
|
IL_DONTFLIP_TGA = BIT(3), // Steam background completely ignore tga attribute 0x20 (stupid lammers!)
|
|
IL_DDS_HARDWARE = BIT(4), // DXT compression is support
|
|
IL_LOAD_DECAL = BIT(5), // special mode for load gradient decals
|
|
IL_OVERVIEW = BIT(6), // overview required some unque operations
|
|
} ilFlags_t;
|
|
|
|
// goes into rgbdata_t->encode
|
|
#define DXT_ENCODE_DEFAULT 0 // don't use custom encoders
|
|
#define DXT_ENCODE_COLOR_YCoCg 0x1A01 // make sure that value dosn't collide with anything
|
|
#define DXT_ENCODE_ALPHA_1BIT 0x1A02 // normal 1-bit alpha
|
|
#define DXT_ENCODE_ALPHA_8BIT 0x1A03 // normal 8-bit alpha
|
|
#define DXT_ENCODE_ALPHA_SDF 0x1A04 // signed distance field
|
|
#define DXT_ENCODE_NORMAL_AG_ORTHO 0x1A05 // orthographic projection
|
|
#define DXT_ENCODE_NORMAL_AG_STEREO 0x1A06 // stereographic projection
|
|
#define DXT_ENCODE_NORMAL_AG_PARABOLOID 0x1A07 // paraboloid projection
|
|
#define DXT_ENCODE_NORMAL_AG_QUARTIC 0x1A08 // newton method
|
|
#define DXT_ENCODE_NORMAL_AG_AZIMUTHAL 0x1A09 // Lambert Azimuthal Equal-Area
|
|
|
|
// rgbdata output flags
|
|
typedef enum
|
|
{
|
|
// rgbdata->flags
|
|
IMAGE_CUBEMAP = BIT(0), // it's 6-sides cubemap buffer
|
|
IMAGE_HAS_ALPHA = BIT(1), // image contain alpha-channel
|
|
IMAGE_HAS_COLOR = BIT(2), // image contain RGB-channel
|
|
IMAGE_COLORINDEX = BIT(3), // all colors in palette is gradients of last color (decals)
|
|
IMAGE_HAS_LUMA = BIT(4), // image has luma pixels (q1-style maps)
|
|
IMAGE_SKYBOX = BIT(5), // only used by FS_SaveImage - for write right suffixes
|
|
IMAGE_QUAKESKY = BIT(6), // it's a quake sky double layered clouds (so keep it as 8 bit)
|
|
IMAGE_DDS_FORMAT = BIT(7), // a hint for GL loader
|
|
IMAGE_MULTILAYER = BIT(8), // to differentiate from 3D texture
|
|
IMAGE_ONEBIT_ALPHA = BIT(9), // binary alpha
|
|
IMAGE_QUAKEPAL = BIT(10), // image has quake1 palette
|
|
|
|
// Image_Process manipulation flags
|
|
IMAGE_FLIP_X = BIT(16), // flip the image by width
|
|
IMAGE_FLIP_Y = BIT(17), // flip the image by height
|
|
IMAGE_ROT_90 = BIT(18), // flip from upper left corner to down right corner
|
|
IMAGE_ROT180 = IMAGE_FLIP_X|IMAGE_FLIP_Y,
|
|
IMAGE_ROT270 = IMAGE_FLIP_X|IMAGE_FLIP_Y|IMAGE_ROT_90,
|
|
IMAGE_EMBOSS = BIT(19), // apply emboss mapping
|
|
IMAGE_RESAMPLE = BIT(20), // resample image to specified dims
|
|
// reserved
|
|
// reserved
|
|
IMAGE_FORCE_RGBA = BIT(23), // force image to RGBA buffer
|
|
IMAGE_MAKE_LUMA = BIT(24), // create luma texture from indexed
|
|
IMAGE_QUANTIZE = BIT(25), // make indexed image from 24 or 32- bit image
|
|
IMAGE_LIGHTGAMMA = BIT(26), // apply gamma for image
|
|
IMAGE_REMAP = BIT(27), // interpret width and height as top and bottom color
|
|
} imgFlags_t;
|
|
|
|
typedef struct rgbdata_s
|
|
{
|
|
word width; // image width
|
|
word height; // image height
|
|
word depth; // image depth
|
|
uint type; // compression type
|
|
uint flags; // misc image flags
|
|
word encode; // DXT may have custom encoder, that will be decoded in GLSL-side
|
|
byte numMips; // mipmap count
|
|
byte *palette; // palette if present
|
|
byte *buffer; // image buffer
|
|
rgba_t fogParams; // some water textures in hl1 has info about fog color and alpha
|
|
size_t size; // for bounds checking
|
|
} rgbdata_t;
|
|
|