Mercurial > sdl-ios-xcode
view src/video/SDL_blit_0.c @ 2825:620a91b6d263
Date: Tue, 02 Dec 2008 23:38:26 +0100
From: Couriersud
Subject: Re: SDL: Keyboard layout unknown
I have attached a diff which will add an additional keyboard layout to
the x11 driver. The issue arose, when I moved to ubuntu intrepid. I was
only able to map the keys available on my keyboard. The differences to
the existing keyboard was the mapping of HOME,UP,DOWN and some other
keys.
Now only one issue remains. Dead keys (e.g. ^, ` ') on european
keyboards do not generate a "scancode" event. Just a text event when the
key is composed (e.g. ?? ?? ??).
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 03 Dec 2008 04:32:24 +0000 |
parents | 204be4fc2726 |
children | 6258fa7cd300 |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2006 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_video.h" #include "SDL_blit.h" /* Functions to blit from bitmaps to other surfaces */ static void BlitBto1(SDL_BlitInfo * info) { int c; int width, height; Uint8 *src, *map, *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = info->src; srcskip = info->src_skip; dst = info->dst; dstskip = info->dst_skip; map = info->table; srcskip += width - (width + 7) / 8; if (map) { while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (1) { *dst = map[bit]; } dst++; byte <<= 1; } src += srcskip; dst += dstskip; } } else { while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (1) { *dst = bit; } dst++; byte <<= 1; } src += srcskip; dst += dstskip; } } } static void BlitBto2(SDL_BlitInfo * info) { int c; int width, height; Uint8 *src; Uint16 *map, *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = info->src; srcskip = info->src_skip; dst = (Uint16 *) info->dst; dstskip = info->dst_skip / 2; map = (Uint16 *) info->table; srcskip += width - (width + 7) / 8; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (1) { *dst = map[bit]; } byte <<= 1; dst++; } src += srcskip; dst += dstskip; } } static void BlitBto3(SDL_BlitInfo * info) { int c, o; int width, height; Uint8 *src, *map, *dst; int srcskip, dstskip; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = info->src; srcskip = info->src_skip; dst = info->dst; dstskip = info->dst_skip; map = info->table; srcskip += width - (width + 7) / 8; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (1) { o = bit * 4; dst[0] = map[o++]; dst[1] = map[o++]; dst[2] = map[o++]; } byte <<= 1; dst += 3; } src += srcskip; dst += dstskip; } } static void BlitBto4(SDL_BlitInfo * info) { int width, height; Uint8 *src; Uint32 *map, *dst; int srcskip, dstskip; int c; /* Set up some basic variables */ width = info->dst_w; height = info->dst_h; src = info->src; srcskip = info->src_skip; dst = (Uint32 *) info->dst; dstskip = info->dst_skip / 4; map = (Uint32 *) info->table; srcskip += width - (width + 7) / 8; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (1) { *dst = map[bit]; } byte <<= 1; dst++; } src += srcskip; dst += dstskip; } } static void BlitBto1Key(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; Uint8 *dst = info->dst; int srcskip = info->src_skip; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; Uint8 *palmap = info->table; int c; /* Set up some basic variables */ srcskip += width - (width + 7) / 8; if (palmap) { while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (bit != ckey) { *dst = palmap[bit]; } dst++; byte <<= 1; } src += srcskip; dst += dstskip; } } else { while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (bit != ckey) { *dst = bit; } dst++; byte <<= 1; } src += srcskip; dst += dstskip; } } } static void BlitBto2Key(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; Uint16 *dstp = (Uint16 *) info->dst; int srcskip = info->src_skip; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; Uint8 *palmap = info->table; int c; /* Set up some basic variables */ srcskip += width - (width + 7) / 8; dstskip /= 2; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (bit != ckey) { *dstp = ((Uint16 *) palmap)[bit]; } byte <<= 1; dstp++; } src += srcskip; dstp += dstskip; } } static void BlitBto3Key(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; Uint8 *dst = info->dst; int srcskip = info->src_skip; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; Uint8 *palmap = info->table; int c; /* Set up some basic variables */ srcskip += width - (width + 7) / 8; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (bit != ckey) { SDL_memcpy(dst, &palmap[bit * 4], 3); } byte <<= 1; dst += 3; } src += srcskip; dst += dstskip; } } static void BlitBto4Key(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; Uint32 *dstp = (Uint32 *) info->dst; int srcskip = info->src_skip; int dstskip = info->dst_skip; Uint32 ckey = info->colorkey; Uint8 *palmap = info->table; int c; /* Set up some basic variables */ srcskip += width - (width + 7) / 8; dstskip /= 4; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (bit != ckey) { *dstp = ((Uint32 *) palmap)[bit]; } byte <<= 1; dstp++; } src += srcskip; dstp += dstskip; } } static void BlitBtoNAlpha(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; Uint8 *dst = info->dst; int srcskip = info->src_skip; int dstskip = info->dst_skip; const SDL_Color *srcpal = info->src_fmt->palette->colors; SDL_PixelFormat *dstfmt = info->dst_fmt; int dstbpp; int c; const int A = info->a; /* Set up some basic variables */ dstbpp = dstfmt->BytesPerPixel; srcskip += width - (width + 7) / 8; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (1) { Uint32 pixel; unsigned sR, sG, sB; unsigned dR, dG, dB; sR = srcpal[bit].r; sG = srcpal[bit].g; sB = srcpal[bit].b; DISEMBLE_RGB(dst, dstbpp, dstfmt, pixel, dR, dG, dB); ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); ASSEMBLE_RGB(dst, dstbpp, dstfmt, dR, dG, dB); } byte <<= 1; dst += dstbpp; } src += srcskip; dst += dstskip; } } static void BlitBtoNAlphaKey(SDL_BlitInfo * info) { int width = info->dst_w; int height = info->dst_h; Uint8 *src = info->src; Uint8 *dst = info->dst; int srcskip = info->src_skip; int dstskip = info->dst_skip; SDL_PixelFormat *srcfmt = info->src_fmt; SDL_PixelFormat *dstfmt = info->dst_fmt; const SDL_Color *srcpal = srcfmt->palette->colors; int dstbpp; int c; const int A = info->a; Uint32 ckey = info->colorkey; /* Set up some basic variables */ dstbpp = dstfmt->BytesPerPixel; srcskip += width - (width + 7) / 8; while (height--) { Uint8 byte = 0, bit; for (c = 0; c < width; ++c) { if ((c & 7) == 0) { byte = *src++; } bit = (byte & 0x80) >> 7; if (bit != ckey) { int sR, sG, sB; int dR, dG, dB; Uint32 pixel; sR = srcpal[bit].r; sG = srcpal[bit].g; sB = srcpal[bit].b; DISEMBLE_RGB(dst, dstbpp, dstfmt, pixel, dR, dG, dB); ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); ASSEMBLE_RGB(dst, dstbpp, dstfmt, dR, dG, dB); } byte <<= 1; dst += dstbpp; } src += srcskip; dst += dstskip; } } static SDL_BlitFunc bitmap_blit[] = { NULL, BlitBto1, BlitBto2, BlitBto3, BlitBto4 }; static SDL_BlitFunc colorkey_blit[] = { NULL, BlitBto1Key, BlitBto2Key, BlitBto3Key, BlitBto4Key }; SDL_BlitFunc SDL_CalculateBlit0(SDL_Surface * surface) { int which; if (surface->format->BitsPerPixel != 1) { /* We don't support sub 8-bit packed pixel modes */ return NULL; } if (surface->map->dst->format->BitsPerPixel < 8) { which = 0; } else { which = surface->map->dst->format->BytesPerPixel; } switch (surface->map->info.flags) { case 0: return bitmap_blit[which]; case SDL_COPY_COLORKEY: return colorkey_blit[which]; case SDL_COPY_MODULATE_ALPHA | SDL_COPY_BLEND: return which >= 2 ? BlitBtoNAlpha : NULL; case SDL_COPY_COLORKEY | SDL_COPY_MODULATE_ALPHA | SDL_COPY_BLEND: return which >= 2 ? BlitBtoNAlphaKey : NULL; } return NULL; } /* vi: set ts=4 sw=4 expandtab: */