| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #ifndef SPLASHSCREEN_GFX_H |
| #define SPLASHSCREEN_GFX_H |
| |
| /* splashscreen_gfx is a general purpose code for converting pixmaps between various visuals |
| it is not very effective, but is universal and concise */ |
| |
| #include "splashscreen_config.h" |
| |
| enum |
| { |
| BYTE_ORDER_LSBFIRST = 0, // least significant byte first |
| BYTE_ORDER_MSBFIRST = 1, // most significant byte first |
| BYTE_ORDER_NATIVE = 2 // exactly the same as the arch we're running this on |
| // will behave identical to _LSBFIRST or _MSBFIRST, |
| // but more effective |
| }; |
| |
| enum |
| { |
| DITHER_SIZE = 16, |
| DITHER_MASK = 15 |
| }; |
| |
| typedef struct DitherSettings |
| { |
| int numColors; |
| rgbquad_t colorTable[512]; |
| unsigned matrix[DITHER_SIZE][DITHER_SIZE]; |
| } DitherSettings; |
| |
| /* this structure is similar to Xlib's Visual */ |
| |
| typedef struct ImageFormat |
| { |
| rgbquad_t mask[4]; |
| int shift[4]; |
| int depthBytes; // 1,2,3 or 4. 3 is not supported for XCVT_BYTE_ORDER_NATIVE. |
| int byteOrder; // see BYTE_ORDER_LSBFIRST, BYTE_ORDER_MSBFIRST or BYTE_ORDER_NATIVE |
| int fixedBits; // this value is or'ed with the color value on get or put, non-indexed only |
| // for indexed color, may be used when pre-decoding the colormap |
| rgbquad_t *colorMap; // colormap should be pre-decoded (i.e. an array of rgbquads) |
| // when colormap is non-NULL, the source color is an index to a colormap, and |
| // masks/shifts are unused. |
| unsigned transparentColor; // only for indexed colors. this is transparent color _INDEX_. |
| // use a more-than-max value when you don't need transparency. |
| int premultiplied; |
| DitherSettings *dithers; |
| int numColors; // in the colormap, only for indexed color |
| rgbquad_t *colorIndex; // color remapping index for dithering mode |
| } ImageFormat; |
| |
| /* this structure defines a rectangular portion of an image buffer. height and/or width may be inverted. */ |
| |
| typedef struct ImageRect |
| { |
| int numLines; // number of scanlines in the rectangle |
| int numSamples; // number of samples in the line |
| int stride; // distance between first samples of n'th and n+1'th scanlines, in bytes |
| int depthBytes; // distance between n'th and n+1'th sample in a scanline, in bytes |
| void *pBits; // points to sample 0, scanline 0 |
| ImageFormat *format; // format of the samples |
| int row, col, jump; // dithering indexes |
| } ImageRect; |
| |
| enum |
| { |
| CVT_COPY, |
| CVT_ALPHATEST, |
| CVT_BLEND |
| }; |
| |
| #define MAX_COLOR_VALUE 255 |
| #define QUAD_ALPHA_MASK 0xFF000000 |
| #define QUAD_RED_MASK 0x00FF0000 |
| #define QUAD_GREEN_MASK 0x0000FF00 |
| #define QUAD_BLUE_MASK 0x000000FF |
| |
| #define QUAD_ALPHA_SHIFT 24 |
| #define QUAD_RED_SHIFT 16 |
| #define QUAD_GREEN_SHIFT 8 |
| #define QUAD_BLUE_SHIFT 0 |
| |
| #define QUAD_ALPHA(value) (((value)&QUAD_ALPHA_MASK)>>QUAD_ALPHA_SHIFT) |
| #define QUAD_RED(value) (((value)&QUAD_RED_MASK)>>QUAD_RED_SHIFT) |
| #define QUAD_GREEN(value) (((value)&QUAD_GREEN_MASK)>>QUAD_GREEN_SHIFT) |
| #define QUAD_BLUE(value) (((value)&QUAD_BLUE_MASK)>>QUAD_BLUE_SHIFT) |
| |
| #define MAKE_QUAD(r,g,b,a) \ |
| (((a)<<QUAD_ALPHA_SHIFT)&QUAD_ALPHA_MASK)| \ |
| (((r)<<QUAD_RED_SHIFT)&QUAD_RED_MASK)| \ |
| (((g)<<QUAD_GREEN_SHIFT)&QUAD_GREEN_MASK)| \ |
| (((b)<<QUAD_BLUE_SHIFT)&QUAD_BLUE_MASK) \ |
| |
| |
| /* alpha testing threshold. what's >= the threshold is considered non-transparent when doing |
| conversion operation with CVT_ALPHATEST and when generating shapes/regions with |
| BitmapToYXBandedRectangles */ |
| |
| #define ALPHA_THRESHOLD 0x80000000 |
| |
| void initRect(ImageRect * pRect, int x, int y, int width, int height, int jump, |
| int stride, void *pBits, ImageFormat * format); |
| int convertRect2(ImageRect * pSrcRect, ImageRect * pDstRect, int mode, |
| ImageRect * pSrcRect2); |
| int convertRect(ImageRect * pSrcRect, ImageRect * pDstRect, int mode); |
| void convertLine(void *pSrc, int incSrc, void *pDst, int incDst, int n, |
| ImageFormat * srcFormat, ImageFormat * dstFormat, int mode, |
| void *pSrc2, int incSrc2, ImageFormat * srcFormat2, int row, int col); |
| void initFormat(ImageFormat * format, int redMask, int greenMask, |
| int blueMask, int alphaMask); |
| int fillRect(rgbquad_t color, ImageRect * pDstRect); |
| void dumpFormat(ImageFormat * format); |
| |
| void optimizeFormat(ImageFormat * format); |
| |
| void initDither(DitherSettings * pDither, int numColors, int scale); |
| |
| int quantizeColors(int maxNumColors, int *numColors); |
| |
| void initColorCube(int *numColors, rgbquad_t * pColorMap, |
| DitherSettings * pDithers, rgbquad_t * colorIndex); |
| int platformByteOrder(); |
| |
| #endif |