1/* 2 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26#ifndef SPLASHSCREEN_GFX_H 27#define SPLASHSCREEN_GFX_H 28 29/* splashscreen_gfx is a general purpose code for converting pixmaps between various visuals 30 it is not very effective, but is universal and concise */ 31 32#include "splashscreen_config.h" 33 34enum 35{ 36 BYTE_ORDER_LSBFIRST = 0, // least significant byte first 37 BYTE_ORDER_MSBFIRST = 1, // most significant byte first 38 BYTE_ORDER_NATIVE = 2 // exactly the same as the arch we're running this on 39 // will behave identical to _LSBFIRST or _MSBFIRST, 40 // but more effective 41}; 42 43enum 44{ 45 DITHER_SIZE = 16, 46 DITHER_MASK = 15 47}; 48 49typedef struct DitherSettings 50{ 51 int numColors; 52 rgbquad_t colorTable[512]; 53 unsigned matrix[DITHER_SIZE][DITHER_SIZE]; 54} DitherSettings; 55 56/* this structure is similar to Xlib's Visual */ 57 58typedef struct ImageFormat 59{ 60 rgbquad_t mask[4]; 61 int shift[4]; 62 int depthBytes; // 1,2,3 or 4. 3 is not supported for XCVT_BYTE_ORDER_NATIVE. 63 int byteOrder; // see BYTE_ORDER_LSBFIRST, BYTE_ORDER_MSBFIRST or BYTE_ORDER_NATIVE 64 int fixedBits; // this value is or'ed with the color value on get or put, non-indexed only 65 // for indexed color, may be used when pre-decoding the colormap 66 rgbquad_t *colorMap; // colormap should be pre-decoded (i.e. an array of rgbquads) 67 // when colormap is non-NULL, the source color is an index to a colormap, and 68 // masks/shifts are unused. 69 unsigned transparentColor; // only for indexed colors. this is transparent color _INDEX_. 70 // use a more-than-max value when you don't need transparency. 71 int premultiplied; 72 DitherSettings *dithers; 73 int numColors; // in the colormap, only for indexed color 74 rgbquad_t *colorIndex; // color remapping index for dithering mode 75} ImageFormat; 76 77/* this structure defines a rectangular portion of an image buffer. height and/or width may be inverted. */ 78 79typedef struct ImageRect 80{ 81 int numLines; // number of scanlines in the rectangle 82 int numSamples; // number of samples in the line 83 int stride; // distance between first samples of n'th and n+1'th scanlines, in bytes 84 int depthBytes; // distance between n'th and n+1'th sample in a scanline, in bytes 85 void *pBits; // points to sample 0, scanline 0 86 ImageFormat *format; // format of the samples 87 int row, col, jump; // dithering indexes 88} ImageRect; 89 90enum 91{ 92 CVT_COPY, 93 CVT_ALPHATEST, 94 CVT_BLEND 95}; 96 97#define MAX_COLOR_VALUE 255 98#define QUAD_ALPHA_MASK 0xFF000000 99#define QUAD_RED_MASK 0x00FF0000 100#define QUAD_GREEN_MASK 0x0000FF00 101#define QUAD_BLUE_MASK 0x000000FF 102 103#define QUAD_ALPHA_SHIFT 24 104#define QUAD_RED_SHIFT 16 105#define QUAD_GREEN_SHIFT 8 106#define QUAD_BLUE_SHIFT 0 107 108#define QUAD_ALPHA(value) (((value)&QUAD_ALPHA_MASK)>>QUAD_ALPHA_SHIFT) 109#define QUAD_RED(value) (((value)&QUAD_RED_MASK)>>QUAD_RED_SHIFT) 110#define QUAD_GREEN(value) (((value)&QUAD_GREEN_MASK)>>QUAD_GREEN_SHIFT) 111#define QUAD_BLUE(value) (((value)&QUAD_BLUE_MASK)>>QUAD_BLUE_SHIFT) 112 113#define MAKE_QUAD(r,g,b,a) \ 114 (((a)<<QUAD_ALPHA_SHIFT)&QUAD_ALPHA_MASK)| \ 115 (((r)<<QUAD_RED_SHIFT)&QUAD_RED_MASK)| \ 116 (((g)<<QUAD_GREEN_SHIFT)&QUAD_GREEN_MASK)| \ 117 (((b)<<QUAD_BLUE_SHIFT)&QUAD_BLUE_MASK) \ 118 119 120/* alpha testing threshold. what's >= the threshold is considered non-transparent when doing 121 conversion operation with CVT_ALPHATEST and when generating shapes/regions with 122 BitmapToYXBandedRectangles */ 123 124#define ALPHA_THRESHOLD 0x80000000 125 126void initRect(ImageRect * pRect, int x, int y, int width, int height, int jump, 127 int stride, void *pBits, ImageFormat * format); 128int convertRect2(ImageRect * pSrcRect, ImageRect * pDstRect, int mode, 129 ImageRect * pSrcRect2); 130int convertRect(ImageRect * pSrcRect, ImageRect * pDstRect, int mode); 131void convertLine(void *pSrc, int incSrc, void *pDst, int incDst, int n, 132 ImageFormat * srcFormat, ImageFormat * dstFormat, int mode, 133 void *pSrc2, int incSrc2, ImageFormat * srcFormat2, int row, int col); 134void initFormat(ImageFormat * format, int redMask, int greenMask, 135 int blueMask, int alphaMask); 136int fillRect(rgbquad_t color, ImageRect * pDstRect); 137void dumpFormat(ImageFormat * format); 138 139void optimizeFormat(ImageFormat * format); 140 141void initDither(DitherSettings * pDither, int numColors, int scale); 142 143int quantizeColors(int maxNumColors, int *numColors); 144 145void initColorCube(int *numColors, rgbquad_t * pColorMap, 146 DitherSettings * pDithers, rgbquad_t * colorIndex); 147int platformByteOrder(); 148 149#endif 150