182 lines
2.8 KiB
C
182 lines
2.8 KiB
C
/*
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* Copyright (c) 1993-1995 by Argonaut Technologies Limited. All rights reserved.
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*
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* $Id: pixelmap.h 1.15 1995/06/30 16:08:58 sam Exp $
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* $Locker: sam $
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*
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* A stopgap 2D pixelmap structure for brender. This should really be the
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* pixelmap data type from the underlying 2D system (whatever that will
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* be)
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*
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* Used for input (maps) and output (render buffer)
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*/
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#ifndef _PIXELMAP_H_
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#define _PIXELMAP_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Various types of pixel
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*/
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enum {
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/*
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* Each pixel is an index into a colour map
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*/
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BR_PMT_INDEX_1,
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BR_PMT_INDEX_2,
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BR_PMT_INDEX_4,
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BR_PMT_INDEX_8,
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/*
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* True colour RGB
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*/
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BR_PMT_RGB_555, /* 16 bits per pixel */
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BR_PMT_RGB_565, /* 16 bits per pixel */
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BR_PMT_RGB_888, /* 24 bits per pixel */
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BR_PMT_RGBX_888, /* 32 bits per pixel */
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BR_PMT_RGBA_8888, /* 32 bits per pixel */
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/*
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* YUV
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*/
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BR_PMT_YUYV_8888, /* YU YV YU YV ... */
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BR_PMT_YUV_888,
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/*
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* Depth
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*/
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BR_PMT_DEPTH_16,
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BR_PMT_DEPTH_32,
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/*
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* Opacity
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*/
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BR_PMT_ALPHA_8,
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/*
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* Opacity + Index
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*/
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BR_PMT_INDEXA_88,
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/*
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* Bump maps
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*/
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BR_PMT_NORMAL_INDEX_8,
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BR_PMT_NORMAL_XYZ,
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/*
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* Wrong way around 15 bit true colour
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*/
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BR_PMT_BGR_555,
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};
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/*
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* pixelmap flags
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*/
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enum {
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/*
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* No direct access to pixels
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*/
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BR_PMF_NO_ACCESS = 0x01,
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BR_PMF_LINEAR = 0x02,
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BR_PMF_ROW_WHOLEPIXELS = 0x04
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};
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typedef struct br_pixelmap {
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/*
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* Optional identifier (when maps used as textures/tables etc.)
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*/
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char *identifier;
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/*
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* pointer to raw pixel data
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*/
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void * pixels;
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br_uint_32 _reserved0;
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/*
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* Optional pixel map when pixels are indexed.
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*/
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struct br_pixelmap *map;
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/*
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* Byte difference between pixels at same column of adjacent rows
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*/
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br_int_16 row_bytes;
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/*
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* Type of pixels
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*/
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br_uint_8 type;
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/*
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* Flags
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*/
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br_uint_8 flags;
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/*
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* top left visible region in pixels from pixel at 'pixel' pointer
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*/
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br_uint_16 base_x;
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br_uint_16 base_y;
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/*
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* Width and height of bitmap in pixels
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*/
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br_uint_16 width;
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br_uint_16 height;
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/*
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* Local origin for any graphics system rendering into map, relative
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* to 'base'
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*/
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br_int_16 origin_x;
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br_int_16 origin_y;
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/*
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* Device pointer - if pixelmap originated from a device
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*/
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void *context;
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} br_pixelmap;
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/*
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* Flags to BrPixelMapAllocate
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*/
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enum br_pixelmap_allocate_flags {
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BR_PMAF_INVERTED = 0x0001, /* Setup pixelmap so that 0th scanline is at high memory */
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BR_PMAF_NORMAL = 0x0000 /* Setup pixelmap so that 0th scanline is at low memory */
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};
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/*
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* Channel flags
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*/
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enum br_pixelmap_channel_mask {
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BR_PMCHAN_INDEX = 0x0001,
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BR_PMCHAN_RGB = 0x0002,
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BR_PMCHAN_DEPTH = 0x0004,
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BR_PMCHAN_ALPHA = 0x0008,
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BR_PMCHAN_YUV = 0x0010
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};
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/*
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* Matching pixelmap types
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*/
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enum br_pmmatch_type {
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BR_PMMATCH_OFFSCREEN,
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BR_PMMATCH_DEPTH_16,
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BR_PMMATCH_MAX
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};
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#ifdef __cplusplus
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};
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#endif
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#endif
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