411 lines
9.1 KiB
C
411 lines
9.1 KiB
C
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/*
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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 1.7 1998/09/09 13:28:45 johng Exp $
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* $Locker: $
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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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/*
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* Various types of pixel
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*/
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enum {
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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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/*
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* Each pixel is an index into a colour map
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*/
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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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* 16 bit r,g,b & alpha
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*/
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BR_PMT_RGBA_4444,
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/*
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* Handy types for converting to 15/16 bit
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*/
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BR_PMT_RBG_bab,
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BR_PMT_RBG_1aba,
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/*
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* Pixelmap extensions.
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*/
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BR_PMT_RGB_332,
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BR_PMT_DEPTH_8,
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BR_PMT_ARGB_8888,
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BR_PMT_ALPHA_4,
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BR_PMT_INDEXA_44,
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BR_PMT_DEPTH_15,
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BR_PMT_DEPTH_31,
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BR_PMT_DEPTH_FP16,
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BR_PMT_DEPTH_FP15,
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BR_PMT_RGBA_5551,
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BR_PMT_ARGB_1555,
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BR_PMT_ARGB_4444,
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BR_PMT_MAX
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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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BR_PMF_PIXELS_NEAR = 0x08,
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BR_PMF_PIXELS_NEAR_ALIAS = 0x10,
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BR_PMF_KEYED_TRANSPARENCY = 0x20,
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BR_PMF_KEEP_ORIGINAL = 0x40,
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/*
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* Experimental - if set then pixelmap is tiled - low bits of Y are moved to least significant part of pixel address
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*/
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BR_PMF_ENABLE_TEXTURE_COMPRESSION = 0x80,
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// BR_PMF_TILED = 0x80,
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};
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#define BR_PM_TILE_SIZE 2
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/*
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* Public structure that is comaptible with a device_pixelmap
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*/
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typedef struct br_pixelmap {
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br_uint_32 _reserved;
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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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/*
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* Optional device speicific information
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*/
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br_uint_32 pixels_qualifier;
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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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* Key colour ranges
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*/
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br_colour_range src_key;
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br_colour_range dst_key;
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/*
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* Key colour
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*/
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br_uint_32 key;
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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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* if ! 0, offset (in top level rows) from top map start to top-1 map
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*/
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br_int_16 mip_offset;
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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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* Copy function
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*/
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br_uint_16 copy_function;
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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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* Workspace fields for user and database
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*/
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void *user;
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void *stored;
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} br_pixelmap;
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/*
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* A macro that declares the pixelmap member entries - this is so that
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* various compatible structures can be created
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*/
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#define BR_PIXELMAP_MEMBERS \
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/* \
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* pointer to raw pixel data \
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*/ \
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void * pm_pixels; \
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\
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/* \
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* Optional device speicific information \
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*/ \
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br_uint_32 pm_pixels_qualifier; \
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\
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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 * pm_map; \
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\
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/* \
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* Key colour ranges \
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*/ \
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br_colour_range pm_src_key; \
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br_colour_range pm_dst_key; \
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\
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/* \
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* Key colour \
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*/ \
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br_uint_32 pm_key; \
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\
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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 pm_row_bytes; \
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\
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/* \
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* if ! 0, offset (in top level rows) from top map start to top-1 map \
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*/ \
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br_int_16 pm_mip_offset; \
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\
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/* \
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* Type of pixels \
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*/ \
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br_uint_8 pm_type; \
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\
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/* \
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* Flags \
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*/ \
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br_uint_8 pm_flags; \
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\
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/* \
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* Copy function \
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*/ \
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br_uint_16 pm_copy_function; \
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\
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\
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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 pm_base_x; \
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br_uint_16 pm_base_y; \
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\
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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 pm_width; \
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br_uint_16 pm_height; \
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\
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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 pm_origin_x; \
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br_int_16 pm_origin_y; \
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\
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/* \
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* Workspace fields for user and database \
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*/ \
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void *pm_user; \
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void *pm_stored; \
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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_NORMAL = 0x0000, /* Setup pixelmap so that 0th scanline is at low memory */
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BR_PMAF_INVERTED = 0x0001, /* Setup pixelmap so that 0th scanline is at high memory */
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BR_PMAF_NO_PIXELS = 0x0002, /* Don't allocate any pixel data */
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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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BR_PMCHAN_VECTOR= 0x0020
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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_DEPTH,
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BR_PMMATCH_HIDDEN,
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BR_PMMATCH_HIDDEN_BUFFER,
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BR_PMMATCH_NO_RENDER,
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BR_PMMATCH_DEPTH_8,
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BR_PMMATCH_DEPTH_32,
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BR_PMMATCH_DEPTH_15,
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BR_PMMATCH_DEPTH_31,
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BR_PMMATCH_DEPTH_FP15,
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BR_PMMATCH_DEPTH_FP16,
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BR_PMMATCH_MAX
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};
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/*
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* Copy functions
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*/
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enum br_pixelmap_copy_function {
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BR_PMCOPY_NORMAL = 0x0000,
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BR_PMCOPY_SRC_KEYED = 0x0001,
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BR_PMCOPY_DST_KEYED = 0x0002
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};
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/*
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* General 2D point and rectangle
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*/
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typedef struct br_point {
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br_int_32 x;
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br_int_32 y;
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} br_point;
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typedef struct br_rectangle {
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br_int_32 x;
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br_int_32 y;
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br_int_32 w;
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br_int_32 h;
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} br_rectangle ;
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/*
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* General result for a clipping operation
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*/
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typedef enum br_clip_result {
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BR_CLIP_REJECT,
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BR_CLIP_PARTIAL,
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BR_CLIP_ACCEPT
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} br_clip_result;
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/*
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* Quantization methods used in mip-level generation for BR_PMT_INDEX_8
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*/
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enum{
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BR_QUANTIZE_RGB,
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BR_QUANTIZE_YIQ,
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BR_QUANTIZE_MAX
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};
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enum{
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BR_CONTROL_GAMMA_RGB = 0x00000001,
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BR_CONTROL_GAMMA = 0x00000002,
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BR_CONTROL_BRIGHTNESS = 0x00000004,
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BR_CONTROL_CONTRAST = 0x00000008,
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BR_CONTROL_HUE = 0x00000010,
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BR_CONTROL_SATURATION = 0x00000020,
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BR_CONTROL_SHARPNESS = 0x00000040,
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};
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typedef struct{
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br_uint_32 flags;
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br_uint_16 gamma_red[256];
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br_uint_16 gamma_green[256];
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br_uint_16 gamma_blue[256];
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br_int_32 gamma;
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br_int_32 brightness;
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br_int_32 contrast;
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br_int_32 hue;
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br_int_32 saturation;
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br_int_32 sharpness;
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}br_display_controls;
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#endif
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