88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
|
// Pi1541 - A Commodore 1541 disk drive emulator
|
||
|
|
// Copyright(C) 2018 Stephen White
|
||
|
|
//
|
||
|
|
// This file is part of Pi1541.
|
||
|
|
//
|
||
|
|
// Pi1541 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.
|
||
|
|
//
|
||
|
|
// Pi1541 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 Pi1541. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
#ifndef SCREEN_H
|
||
|
|
#define SCREEN_H
|
||
|
|
|
||
|
|
#include "types.h"
|
||
|
|
|
||
|
|
typedef u32 RGBA;
|
||
|
|
|
||
|
|
#define RED(colour) ( (u8)(((u32)colour) & 0xFF) )
|
||
|
|
#define GREEN(colour) ( (u8)(((u32)colour >> 8) & 0xFF) )
|
||
|
|
#define BLUE(colour) ( (u8)(((u32)colour >> 16) & 0xFF) )
|
||
|
|
#define ALPHA(colour) ( (u8)(((u32)colour >> 24) & 0xFF) )
|
||
|
|
|
||
|
|
#define RGBA(r, g, b, a) ( ((u32)((u8)(r))) | ((u32)((u8)(g)) << 8) | ((u32)((u8)(b)) << 16) | ((u32)((u8)(a)) << 24) )
|
||
|
|
|
||
|
|
class Screen
|
||
|
|
{
|
||
|
|
|
||
|
|
public:
|
||
|
|
Screen()
|
||
|
|
: opened(false)
|
||
|
|
, width(0)
|
||
|
|
, height(0)
|
||
|
|
, bpp(0)
|
||
|
|
, pitch(0)
|
||
|
|
, framebuffer(0)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void Open(u32 width, u32 height, u32 colourDepth);
|
||
|
|
|
||
|
|
void ClearArea(u32 x1, u32 y1, u32 x2, u32 y2, RGBA colour);
|
||
|
|
void Clear(RGBA colour);
|
||
|
|
|
||
|
|
void ScrollArea(u32 x1, u32 y1, u32 x2, u32 y2);
|
||
|
|
|
||
|
|
void WriteChar(bool petscii, u32 x, u32 y, unsigned char c, RGBA colour);
|
||
|
|
u32 PrintText(bool petscii, u32 xPos, u32 yPos, char *ptr, RGBA TxtColour = RGBA(0xff, 0xff, 0xff, 0xff), RGBA BkColour = RGBA(0, 0, 0, 0xFF), bool measureOnly = false, u32* width = 0, u32* height = 0);
|
||
|
|
u32 MeasureText(bool petscii, char *ptr, u32* width = 0, u32* height = 0);
|
||
|
|
|
||
|
|
void DrawLine(u32 x1, u32 y1, u32 x2, u32 y2, RGBA colour);
|
||
|
|
void DrawLineV(u32 x, u32 y1, u32 y2, RGBA colour);
|
||
|
|
void PlotPixel(u32 x, u32 y, RGBA colour);
|
||
|
|
|
||
|
|
void PlotImage(u32* image, int x, int y, int w, int h);
|
||
|
|
|
||
|
|
u32 Width() const { return width; }
|
||
|
|
u32 Height() const { return height; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
typedef void (Screen::*PlotPixelFunction)(u32 pixel_offset, RGBA Colour);
|
||
|
|
|
||
|
|
void PlotPixel32(u32 pixel_offset, RGBA Colour);
|
||
|
|
void PlotPixel24(u32 pixel_offset, RGBA Colour);
|
||
|
|
void PlotPixel16(u32 pixel_offset, RGBA Colour);
|
||
|
|
void PlotPixel8(u32 pixel_offset, RGBA Colour);
|
||
|
|
|
||
|
|
void ClipRect(u32& x1, u32& y1, u32& x2, u32& y2);
|
||
|
|
|
||
|
|
PlotPixelFunction plotPixelFn;
|
||
|
|
|
||
|
|
bool opened;
|
||
|
|
u32 width;
|
||
|
|
u32 height;
|
||
|
|
u32 bpp;
|
||
|
|
u32 pitch;
|
||
|
|
volatile u8* framebuffer;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|