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Diffstat (limited to 'include/framebuffer.h')
| -rw-r--r-- | include/framebuffer.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/framebuffer.h b/include/framebuffer.h new file mode 100644 index 0000000..695bf44 --- /dev/null +++ b/include/framebuffer.h @@ -0,0 +1,90 @@ +/* + ds81 - Nintendo DS ZX81 emulator. + + Copyright (C) 2006 Ian Cowburn <ianc@noddybox.co.uk> + + 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 2 + 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, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + $Id: framebuffer.h 43 2007-03-12 00:59:51Z ianc $ +*/ +#ifndef DS81_FRAMEBUFFER_H +#define DS81_FRAMEBUFFER_H + +/* Predefined colours. +*/ +typedef enum +{ + COL_TRANSPARENT = -1, + COL_BLACK = 0, + COL_WHITE = 240, + COL_RED = 241, + COL_GREEN = 242, + COL_BLUE = 243, + COL_GUISELECT = 244, + COL_GREY = 245, + COL_LIGHTGREY = 246, + COL_DARKGREY = 247, + COL_YELLOW = 248 +} FB_Colour; + + +/* Initialise 'framebuffer' code. vram is where the 8-bit framebuffer is. + palette is the palette to use/set. +*/ +void FB_Init(uint16 *vram, uint16 *palette); + +/* Gives access to the parameters of the frame buffer. +*/ +uint16 *FB_VRAM(void); +uint16 *FB_PALETTE(void); + +/* Load the internal framebuffer font as a set of ASCII tiles (starting with + space) at tiles. The tiles will use colour COL_WHITE. +*/ +void FB_LoadASCIITiles(uint16 *tiles); + +/* Print the text into the framebuffer. +*/ +void FB_Print(const char *text, int x, int y, + FB_Colour colour, FB_Colour paper); +void FB_Centre(const char *text, int y, + FB_Colour colour, FB_Colour paper); +void FB_printf(int x, int y, FB_Colour colour, FB_Colour paper, + const char *format, ...); + +/* Lines and boxes. +*/ +void FB_HLine(int x1, int x2, int y, FB_Colour colour); +void FB_VLine(int x, int y1, int y2, FB_Colour colour); +void FB_Box(int x, int y, int w, int h, FB_Colour colour); +void FB_FillBox(int x, int y, int w, int h, FB_Colour colour); + +/* Clear to background +*/ +void FB_Clear(void); + +/* Draw the image. The image must be an 8-bit image, but with only the first + 16 palette entries used. Just to complicate matters! + + The image is assumed to be an even number of pixels wide. Also the passed + X co-ord will be forced even. + + offset is used to give an offset into the palette to place colours from the + image. Palette entries 1 - 128 will always be safe to use (these routines + will never use them). +*/ +void FB_Blit(sImage *img, int x, int y, int offset); + +#endif /* DS81_FRAMEBUFFER_H */ |