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BitBltDispatch.h
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/
BitBltDispatch.h
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/*
* Copyright © 2013 Raspberry Pi Foundation
* Copyright © 2013 RISC OS Open Ltd
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. The copyright holders make no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*
*/
#ifndef BITBLTDISPATCH_H_
#define BITBLTDISPATCH_H_
#include <stdbool.h>
#include "sqVirtualMachine.h"
#ifndef ColorMapPresent
#define ColorMapPresent 1
#define ColorMapFixedPart 2
#define ColorMapIndexedPart 4
#endif
typedef enum {
CR_clearWord, /* 0 */
CR_bitAnd, /* 1 */
CR_bitAndInvert, /* 2 */
CR_sourceWord, /* 3 */
CR_bitInvertAnd, /* 4 */
CR_destinationWord, /* 5 */
CR_bitXor, /* 6 */
CR_bitOr, /* 7 */
CR_bitInvertAndInvert, /* 8 */
CR_bitInvertXor, /* 9 */
CR_bitInvertDestination, /* 10 */
CR_bitOrInvert, /* 11 */
CR_bitInvertSource, /* 12 */
CR_bitInvertOr, /* 13 */
CR_bitInvertOrInvert, /* 14 */
CR_destinationWord_alt1, /* 15 */
CR_destinationWord_alt2, /* 16 */
CR_destinationWord_alt3, /* 17 */
CR_addWord, /* 18 */
CR_subWord, /* 19 */
CR_rgbAdd, /* 20 */
CR_rgbSub, /* 21 */
CR_OLDrgbDiff, /* 22 */
CR_OLDtallyIntoMap, /* 23 */
CR_alphaBlend, /* 24 */
CR_pixPaint, /* 25 */
CR_pixMask, /* 26 */
CR_rgbMax, /* 27 */
CR_rgbMin, /* 28 */
CR_rgbMinInvert, /* 29 */
CR_alphaBlendConst, /* 30 */
CR_alphaPaintConst, /* 31 */
CR_rgbDiff, /* 32 */
CR_tallyIntoMap, /* 33 */
CR_alphaBlendScaled, /* 34 */
CR_alphaBlendScaled_alt1, /* 35 */
CR_alphaBlendScaled_alt2, /* 36 */
CR_rgbMul, /* 37 */
CR_pixSwap, /* 38 */
CR_pixClear, /* 39 */
CR_fixAlpha, /* 40 */
CR_rgbComponentAlpha, /* 41 */
CR_any = -1u
}
combination_rule_t;
typedef enum {
MR_pixelMatch, /* 0 */
MR_notAnotB, /* 1 */
MR_notAmatchB, /* 2 */
}
match_rule_t;
typedef struct {
void *bits;
usqInt depth;
usqInt pitch;
bool msb;
sqInt x;
sqInt y;
}
src_or_dest_t;
typedef struct {
combination_rule_t combinationRule;
bool noSource;
src_or_dest_t src;
src_or_dest_t dest;
usqInt width;
usqInt height;
sqInt cmFlags;
int (*cmShiftTable)[4];
unsigned int (*cmMaskTable)[4];
usqInt cmMask;
unsigned int (*cmLookupTable)[];
bool noHalftone;
usqInt halftoneHeight;
sqInt (*halftoneBase)[];
union {
sqInt sourceAlpha;
struct {
sqInt componentAlphaModeColor;
sqInt componentAlphaModeAlpha;
unsigned char (*gammaLookupTable)[256];
unsigned char (*ungammaLookupTable)[256];
} componentAlpha;
} opt;
}
operation_t;
typedef struct {
match_rule_t matchRule;
bool tally;
src_or_dest_t srcA;
src_or_dest_t srcB;
usqInt width;
usqInt height;
usqInt colorA;
usqInt colorB;
}
compare_operation_t;
typedef usqInt (*compare_colors_fn_t)(const compare_operation_t *op, usqInt log2bppA, usqInt log2bppB);
extern compare_colors_fn_t compareColorsFns[3*2*3*3];
void initialiseCopyBits(void);
void copyBitsDispatch(operation_t *op);
sqInt compareColorsDispatch(const compare_operation_t *op);
#endif /* BITBLTDISPATCH_H_ */