mirror of
https://github.com/netsurf-browser/netsurf
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155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
/*
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* Copyright 2005 Richard Wilson <info@tinct.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Complete details on using Tinct are available from http://www.tinct.net.
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*/
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/** \file
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* Tinct SWI numbers and flags for version 0.11
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*/
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#ifndef _NETSURF_RISCOS_TINCT_H_
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#define _NETSURF_RISCOS_TINCT_H_
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/**
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* Plots an alpha-blended sprite at the specified coordinates.
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*
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* -> R2 Sprite pointer
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* R3 X coordinate
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* R4 Y coordinate
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* R7 Flag word
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*/
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#define Tinct_PlotAlpha 0x57240
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/**
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* Plots a scaled alpha-blended sprite at the specified coordinates.
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*
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* -> R2 Sprite pointer
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* R3 X coordinate
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* R4 Y coordinate
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* R5 Scaled sprite width
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* R6 Scaled sprite height
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* R7 Flag word
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*/
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#define Tinct_PlotScaledAlpha 0x57241
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/**
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* Plots a sprite at the specified coordinates with a constant 0xff value for
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* the alpha channel, ie without a mask.
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*
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* -> R2 Sprite pointer
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* R3 X coordinate
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* R4 Y coordinate
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* R7 Flag word
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*/
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#define Tinct_Plot 0x57242
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/**
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* Plots a scaled sprite at the specified coordinates with a constant 0xff value
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* for the alpha channel, ie without a mask.
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*
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* -> R2 Sprite pointer
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* R3 X coordinate
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* R4 Y coordinate
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* R5 Scaled sprite width
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* R6 Scaled sprite height
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* R7 Flag word
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*/
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#define Tinct_PlotScaled 0x57243
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/**
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* Converts a paletted sprite into its 32bpp equivalent. Sufficient memory must
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* have previously been allocated for the sprite (44 + width * height * 4).
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* As sprites with 16bpp or 32bpp do not have palettes, conversion cannot be
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* performed on these variants. All sprites must be supplied with a full palette,
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* eg 8bpp must have 256 palette entries.
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*
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* -> R2 Source sprite pointer
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* R3 Destination sprite pointer
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*/
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#define Tinct_ConvertSprite 0x57244
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/**
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* Returns the features available to the caller by specifying bits in the flag
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* word. The features available are unique for each mode, although the current
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* version of Tinct supports the same subset of features for all modes.
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*
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* -> R0 Feature to test for, or 0 for all features
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* <- R0 Features available
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*/
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#define Tinct_AvailableFeatures 0x57245
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/**
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* Compresses an image using a fast algorithm. Sufficient memory must have been
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* previously allocated for the maximum possible compressed size. This value is
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* equal to 28 + (width * height * 4) * 33 / 32.
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*
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* -> R0 Source sprite pointer
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* R2 Output data buffer
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* R3 Output bytes available
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* R7 Flag word (currently 0)
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* <- R0 Size of compressed data
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*/
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#define Tinct_Compress 0x57246
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/**
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* Decompresses an image previously compressed. Sufficient memory must have been
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* previously allocated for the decompressed data (44 + width * height * 4) where
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* width and height are available at +0 and +4 of the compressed data respectively.
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*
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* -> R0 Input data buffer
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* R2 Output data buffer
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* R7 Flag word (currently 0)
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* <- R0 Size of decompressed data
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*/
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#define Tinct_Decompress 0x57247
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/* Plotting flags
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*/
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#define tinct_READ_SCREEN_BASE 0x01 /** <-- Use when hardware scrolling */
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#define tinct_BILINEAR_FILTER 0x02 /** <-- Perform bi-linear filtering */
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#define tinct_DITHER 0x04 /** <-- Perform dithering */
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#define tinct_ERROR_DIFFUSE 0x08 /** <-- Perform error diffusion */
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#define tinct_DITHER_INVERTED 0x0C /** <-- Perform dithering with inverted pattern */
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#define tinct_FILL_HORIZONTALLY 0x10 /** <-- Horizontally fill clipping region with image */
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#define tinct_FILL_VERTICALLY 0x20 /** <-- Vertically fill clipping region with image */
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#define tinct_FORCE_PALETTE_READ 0x40 /** <-- Use after a palette change when out of the desktop */
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#define tinct_USE_OS_SPRITE_OP 0x80 /** <-- Use when printing */
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/* Compression flags
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*/
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#define tinct_OPAQUE_IMAGE 0x01 /** <-- Image is opaque, compress further */
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/* Shifts
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*/
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#define tinct_BACKGROUND_SHIFT 0x08
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/* Sprite mode
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*/
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#define tinct_SPRITE_MODE (os_mode)0x301680b5
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#endif
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