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blitbuffer.h
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/*
KOReader: blitbuffer implementation for jit-disabled platforms
Copyright (C) 2011 Hans-Werner Hilse <hilse@web.de>
2017 Huang Xin <chrox.huang@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _BLITBUFFER_H
#define _BLITBUFFER_H
#include <stdint.h>
typedef struct Color8 {
uint8_t a;
} Color8;
typedef struct Color8A {
uint8_t a;
uint8_t alpha;
} Color8A;
typedef struct ColorRGB16 {
uint16_t v;
} ColorRGB16;
typedef struct ColorRGB24 {
uint8_t r;
uint8_t g;
uint8_t b;
} ColorRGB24;
typedef struct ColorRGB32 {
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t alpha;
} ColorRGB32;
typedef struct BlitBuffer {
int w;
int pixel_stride; // nb of pixels from the start of a line to the start of next line
int h;
int stride; // nb of bytes from the start of a line to the start of next line
uint8_t *data;
uint8_t config;
} BlitBuffer;
typedef struct BlitBuffer8 {
int w;
int pixel_stride;
int h;
int stride;
Color8 *data;
uint8_t config;
} BlitBuffer8;
typedef struct BlitBuffer8A {
int w;
int pixel_stride;
int h;
int stride;
Color8A *data;
uint8_t config;
} BlitBuffer8A;
typedef struct BlitBufferRGB16 {
int w;
int pixel_stride;
int h;
int stride;
ColorRGB16 *data;
uint8_t config;
} BlitBufferRGB16;
typedef struct BlitBufferRGB24 {
int w;
int pixel_stride;
int h;
int stride;
ColorRGB24 *data;
uint8_t config;
} BlitBufferRGB24;
typedef struct BlitBufferRGB32 {
int w;
int pixel_stride;
int h;
int stride;
ColorRGB32 *data;
uint8_t config;
} BlitBufferRGB32;
void BB_fill_rect(BlitBuffer *bb, int x, int y, int w, int h, uint8_t v);
void BB_blend_rect(BlitBuffer *bb, int x, int y, int w, int h, Color8A *color);
void BB_invert_rect(BlitBuffer *bb, int x, int y, int w, int h);
void BB_blit_to_BB8(BlitBuffer *src, BlitBuffer *dst,
int dest_x, int dest_y, int offs_x, int offs_y, int w, int h);
void BB_dither_blit_to_BB8(BlitBuffer *src, BlitBuffer *dst,
int dest_x, int dest_y, int offs_x, int offs_y, int w, int h);
void BB_blit_to_BB8A(BlitBuffer *src, BlitBuffer *dst,
int dest_x, int dest_y, int offs_x, int offs_y, int w, int h);
void BB_blit_to_BB16(BlitBuffer *src, BlitBuffer *dst,
int dest_x, int dest_y, int offs_x, int offs_y, int w, int h);
void BB_blit_to_BB24(BlitBuffer *src, BlitBuffer *dst,
int dest_x, int dest_y, int offs_x, int offs_y, int w, int h);
void BB_blit_to_BB32(BlitBuffer *src, BlitBuffer *dst,
int dest_x, int dest_y, int offs_x, int offs_y, int w, int h);
void BB_blit_to(BlitBuffer *source, BlitBuffer *dest, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h);
void BB_dither_blit_to(BlitBuffer *source, BlitBuffer *dest, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h);
void BB_add_blit_from(BlitBuffer *dest, BlitBuffer *source, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h, uint8_t alpha);
void BB_alpha_blit_from(BlitBuffer *dest, BlitBuffer *source, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h);
void BB_pmulalpha_blit_from(BlitBuffer *dest, BlitBuffer *source, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h);
void BB_dither_pmulalpha_blit_from(BlitBuffer *dest, BlitBuffer *source, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h);
void BB_invert_blit_from(BlitBuffer *dest, BlitBuffer *source, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h);
void BB_color_blit_from(BlitBuffer *dest, BlitBuffer *source, int dest_x, int dest_y,
int offs_x, int offs_y, int w, int h, Color8A *color);
#endif