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Location: cpp/openttd-patchpack/source/src/blitter/8bpp_base.cpp
r19409:5ca3f7c4fb73
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(svn r24326) -Update from WebTranslator v3.0:
afrikaans - 11 changes by telanus
dutch - 7 changes by habell
german - 5 changes by Jogio
greek - 183 changes by kyrm
lithuanian - 4 changes by RunisLabs
polish - 50 changes by wojteks86
afrikaans - 11 changes by telanus
dutch - 7 changes by habell
german - 5 changes by Jogio
greek - 183 changes by kyrm
lithuanian - 4 changes by RunisLabs
polish - 50 changes by wojteks86
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file 8bpp_base.cpp Implementation of the base for all 8 bpp blitters. */
#include "../stdafx.h"
#include "../gfx_func.h"
#include "8bpp_base.hpp"
void Blitter_8bppBase::DrawColourMappingRect(void *dst, int width, int height, PaletteID pal)
{
const uint8 *ctab = GetNonSprite(pal, ST_RECOLOUR) + 1;
do {
for (int i = 0; i != width; i++) *((uint8 *)dst + i) = ctab[((uint8 *)dst)[i]];
dst = (uint8 *)dst + _screen.pitch;
} while (--height);
}
void *Blitter_8bppBase::MoveTo(void *video, int x, int y)
{
return (uint8 *)video + x + y * _screen.pitch;
}
void Blitter_8bppBase::SetPixel(void *video, int x, int y, uint8 colour)
{
*((uint8 *)video + x + y * _screen.pitch) = colour;
}
void Blitter_8bppBase::DrawRect(void *video, int width, int height, uint8 colour)
{
do {
memset(video, colour, width);
video = (uint8 *)video + _screen.pitch;
} while (--height);
}
void Blitter_8bppBase::CopyFromBuffer(void *video, const void *src, int width, int height)
{
uint8 *dst = (uint8 *)video;
const uint8 *usrc = (const uint8 *)src;
for (; height > 0; height--) {
memcpy(dst, usrc, width * sizeof(uint8));
usrc += width;
dst += _screen.pitch;
}
}
void Blitter_8bppBase::CopyToBuffer(const void *video, void *dst, int width, int height)
{
uint8 *udst = (uint8 *)dst;
const uint8 *src = (const uint8 *)video;
for (; height > 0; height--) {
memcpy(udst, src, width * sizeof(uint8));
src += _screen.pitch;
udst += width;
}
}
void Blitter_8bppBase::CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch)
{
uint8 *udst = (uint8 *)dst;
const uint8 *src = (const uint8 *)video;
for (; height > 0; height--) {
memcpy(udst, src, width * sizeof(uint8));
src += _screen.pitch;
udst += dst_pitch;
}
}
void Blitter_8bppBase::ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y)
{
const uint8 *src;
uint8 *dst;
if (scroll_y > 0) {
/* Calculate pointers */
dst = (uint8 *)video + left + (top + height - 1) * _screen.pitch;
src = dst - scroll_y * _screen.pitch;
/* Decrease height and increase top */
top += scroll_y;
height -= scroll_y;
assert(height > 0);
/* Adjust left & width */
if (scroll_x >= 0) {
dst += scroll_x;
left += scroll_x;
width -= scroll_x;
} else {
src -= scroll_x;
width += scroll_x;
}
for (int h = height; h > 0; h--) {
memcpy(dst, src, width * sizeof(uint8));
src -= _screen.pitch;
dst -= _screen.pitch;
}
} else {
/* Calculate pointers */
dst = (uint8 *)video + left + top * _screen.pitch;
src = dst - scroll_y * _screen.pitch;
/* Decrese height. (scroll_y is <=0). */
height += scroll_y;
assert(height > 0);
/* Adjust left & width */
if (scroll_x >= 0) {
dst += scroll_x;
left += scroll_x;
width -= scroll_x;
} else {
src -= scroll_x;
width += scroll_x;
}
/* the y-displacement may be 0 therefore we have to use memmove,
* because source and destination may overlap */
for (int h = height; h > 0; h--) {
memmove(dst, src, width * sizeof(uint8));
src += _screen.pitch;
dst += _screen.pitch;
}
}
}
int Blitter_8bppBase::BufferSize(int width, int height)
{
return width * height;
}
void Blitter_8bppBase::PaletteAnimate(const Palette &palette)
{
/* Video backend takes care of the palette animation */
}
Blitter::PaletteAnimation Blitter_8bppBase::UsePaletteAnimation()
{
return Blitter::PALETTE_ANIMATION_VIDEO_BACKEND;
}
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