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/* --COPYRIGHT--,BSD
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* Copyright (c) 2013, Texas Instruments Incorporated
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* --/COPYRIGHT--*/
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#ifndef __GRLIB_H__
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#define __GRLIB_H__
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#define NDEBUG
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#include "assert.h"
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//*****************************************************************************
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//
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//! \addtogroup primitives_api
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//! @{
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//
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//*****************************************************************************
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//*****************************************************************************
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//
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// If building with a C++ compiler, make all of the definitions in this header
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// have a C binding.
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//
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//*****************************************************************************
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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//*****************************************************************************
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//
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//! This structure defines the characteristics of a Bitmap Image
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! Bits per pixel and Compressed/Uncompressed
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//
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unsigned char BPP;
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//
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//! X size
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//
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unsigned int XSize;
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//
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//! Y size
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//
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unsigned int YSize;
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//
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//! Number of Colors in Palette
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//
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unsigned int NumColors;
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//
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//! Pointer to Palette
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//
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const unsigned long * pPalette;
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//
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//! Pointer to pixel data
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//
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const unsigned char * pPixel;
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}
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tImage;
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//*****************************************************************************
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//
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//! This structure defines the extents of a rectangle. All points greater than
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//! or equal to the minimum and less than or equal to the maximum are part of
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//! the rectangle.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! The minimum X coordinate of the rectangle.
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//
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short sXMin;
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//
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//! The minimum Y coordinate of the rectangle.
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//
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short sYMin;
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//
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//! The maximum X coordinate of the rectangle.
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//
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short sXMax;
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//
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//! The maximum Y coordinate of the rectangle.
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//
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short sYMax;
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}
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tRectangle;
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//*****************************************************************************
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//
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//! This structure defines the characteristics of a display driver.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! The size of this structure.
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//
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long lSize;
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//
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//! A pointer to display driver-specific data.
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//
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void *pvDisplayData;
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//
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//! The width of this display.
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//
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unsigned short usWidth;
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//
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//! The height of this display.
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//
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unsigned short usHeight;
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//
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//! A pointer to the function to draw a pixel on this display.
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//
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void (*pfnPixelDraw)(void *pvDisplayData, int lX, int lY,
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unsigned int ulValue);
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//
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//! A pointer to the function to draw multiple pixels on this display.
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//
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void (*pfnPixelDrawMultiple)(void *pvDisplayData, int lX, int lY,
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int lX0, int lCount, int lBPP,
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const unsigned char *pucData,
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const unsigned int *pucPalette);
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//
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//! A pointer to the function to draw a horizontal line on this display.
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//
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void (*pfnLineDrawH)(void *pvDisplayData, int lX1, int lX2, int lY,
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unsigned int ulValue);
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//
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//! A pointer to the function to draw a vertical line on this display.
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//
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void (*pfnLineDrawV)(void *pvDisplayData, int lX, int lY1, int lY2,
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unsigned int ulValue);
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//
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//! A pointer to the function to draw a filled rectangle on this display.
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//
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void (*pfnRectFill)(void *pvDisplayData, const tRectangle *pRect,
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unsigned int ulValue);
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//
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//! A pointer to the function to translate 24-bit RGB colors to
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//! display-specific colors.
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//
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unsigned int (*pfnColorTranslate)(void *pvDisplayData,
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unsigned long ulValue);
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//
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//! A pointer to the function to flush any cached drawing operations on
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//! this display.
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//
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void (*pfnFlush)(void *pvDisplayData);
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//
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//! A pointer to the function to clears Display. Contents of display buffer
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//! unmodified
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//
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void (*pfnClearDisplay)(void *pvDisplayData, unsigned int ulValue);
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}
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tDisplay;
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//*****************************************************************************
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//
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//! This structure describes a font used for drawing text onto the screen.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! The format of the font. Can be one of FONT_FMT_UNCOMPRESSED or
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//! FONT_FMT_PIXEL_RLE.
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//
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unsigned char ucFormat;
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//
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//! The maximum width of a character; this is the width of the widest
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//! character in the font, though any individual character may be narrower
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//! than this width.
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//
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unsigned char ucMaxWidth;
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//
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//! The height of the character cell; this may be taller than the font data
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//! for the characters (to provide inter-line spacing).
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//
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unsigned char ucHeight;
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//
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//! The offset between the top of the character cell and the baseline of
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//! the glyph. The baseline is the bottom row of a capital letter, below
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//! which only the descenders of the lower case letters occur.
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//
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unsigned char ucBaseline;
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//
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//! The offset within pucData to the data for each character in the font.
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//
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unsigned short pusOffset[96];
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//
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//! A pointer to the data for the font.
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//
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const unsigned char *pucData;
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}
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tFont;
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//*****************************************************************************
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//
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//! This is a newer version of the structure which describes a font used
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//! for drawing text onto the screen. This variant allows a font to contain an
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//! arbitrary, contiguous block of codepoints from the 256 basic characters in
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//! an ISO8859-n font and allows support for accented characters in Western
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//! European languages and any left-to-right typeface supported by an ISO8859
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//! variant. Fonts encoded in this format may be used interchangeably with the
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//! original fonts merely by casting the structure pointer when calling any
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//! function or macro which expects a font pointer as a parameter.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! The format of the font. Can be one of FONT_FMT_EX_UNCOMPRESSED or
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//! FONT_FMT_EX_PIXEL_RLE.
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//
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unsigned char ucFormat;
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//
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//! The maximum width of a character; this is the width of the widest
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//! character in the font, though any individual character may be narrower
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//! than this width.
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//
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unsigned char ucMaxWidth;
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//
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//! The height of the character cell; this may be taller than the font data
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//! for the characters (to provide inter-line spacing).
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//
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unsigned char ucHeight;
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//
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//! The offset between the top of the character cell and the baseline of
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//! the glyph. The baseline is the bottom row of a capital letter, below
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//! which only the descenders of the lower case letters occur.
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//
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unsigned char ucBaseline;
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//
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//! The codepoint number representing the first character encoded in the
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//! font.
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//
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unsigned char ucFirst;
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//
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//! The codepoint number representing the last character encoded in the
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//! font.
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//
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unsigned char ucLast;
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//
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//! A pointer to a table containing the offset within pucData to the data
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//! for each character in the font.
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//
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const unsigned short *pusOffset;
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//
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//! A pointer to the data for the font.
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//
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const unsigned char *pucData;
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}
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tFontEx;
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//*****************************************************************************
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//
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//! Indicates that the font data is stored in an uncompressed format.
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//
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//*****************************************************************************
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#define FONT_FMT_UNCOMPRESSED 0x00
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//*****************************************************************************
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//
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//! Indicates that the font data is stored using a pixel-based RLE format.
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//
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//*****************************************************************************
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#define FONT_FMT_PIXEL_RLE 0x01
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//*****************************************************************************
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//
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//! A marker used in the ucFormat field of a font to indicates that the font
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//! data is stored using the new tFontEx structure.
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//
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//*****************************************************************************
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#define FONT_EX_MARKER 0x80
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//*****************************************************************************
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//
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//! Indicates that the font data is stored in an uncompressed format and uses
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//! the tFontEx structure format.
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//
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//*****************************************************************************
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#define FONT_FMT_EX_UNCOMPRESSED (FONT_FMT_UNCOMPRESSED | FONT_EX_MARKER)
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//*****************************************************************************
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//
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//! Indicates that the font data is stored using a pixel-based RLE format and
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//! uses the tFontEx structure format.
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//
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//*****************************************************************************
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#define FONT_FMT_EX_PIXEL_RLE (FONT_FMT_PIXEL_RLE | FONT_EX_MARKER)
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//*****************************************************************************
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//
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//! Value to automatically draw the entire length of the string
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//! (subject to clipping)
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//
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//*****************************************************************************
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#define AUTO_STRING_LENGTH -1
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//*****************************************************************************
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//
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//! Value to draw text opaque
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//! The text foreground and background are drawn together
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//
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//*****************************************************************************
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#define OPAQUE_TEXT 1
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//*****************************************************************************
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//
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//! Value to draw text transparently
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//! The text only (no background) is drawn
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//
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//*****************************************************************************
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#define TRANSPARENT_TEXT 0
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//*****************************************************************************
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//
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//! Indicates that the image data is not compressed and represents each pixel
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//! with a single bit.
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//
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//*****************************************************************************
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#define IMAGE_FMT_1BPP_UNCOMP 0x01
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//*****************************************************************************
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//
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//! Indicates that the image data is not compressed and represents each pixel
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//! with two bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_2BPP_UNCOMP 0x02
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//*****************************************************************************
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//
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//! Indicates that the image data is not compressed and represents each pixel
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//! with four bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_4BPP_UNCOMP 0x04
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//*****************************************************************************
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//
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//! Indicates that the image data is not compressed and represents each pixel
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//! with eight bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_8BPP_UNCOMP 0x08
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 4 bit Run Length Encoding
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//! and represents each pixel with a single bit.
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//
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//*****************************************************************************
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#define IMAGE_FMT_1BPP_COMP_RLE4 0x41
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 4 bit Run Length Encoding
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//! and represents each pixel with two bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_2BPP_COMP_RLE4 0x42
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 4 bit Run Length Encoding
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//! and represents each pixel with four bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_4BPP_COMP_RLE4 0x44
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 8 bit Run Length Encoding
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//! and represents each pixel with a single bit.
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//
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//*****************************************************************************
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#define IMAGE_FMT_1BPP_COMP_RLE8 0x81
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 8 bit Run Length Encoding
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//! and represents each pixel with two bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_2BPP_COMP_RLE8 0x82
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 8 bit Run Length Encoding
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//! and represents each pixel with four bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_4BPP_COMP_RLE8 0x84
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed with 8 bit Run Length Encoding
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//! and represents each pixel with eight bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_8BPP_COMP_RLE8 0x88
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//*****************************************************************************
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//
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//! Indicates that the image data is compressed and represents each pixel with
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//! info bits.
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//
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//*****************************************************************************
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#define IMAGE_FMT_8BPP_COMP_RLEBLEND 0x28
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//*****************************************************************************
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//
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//! This structure defines a drawing context to be used to draw onto the
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//! screen. Multiple drawing contexts may exist at any time.
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//
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//*****************************************************************************
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typedef struct
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{
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//
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//! The size of this structure.
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//
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long lSize;
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//
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//! The screen onto which drawing operations are performed.
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//
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const tDisplay *pDisplay;
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//
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//! The clipping region to be used when drawing onto the screen.
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//
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tRectangle sClipRegion;
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//
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//! The color used to draw primitives onto the screen.
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//
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unsigned long ulForeground;
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//
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//! The background color used to draw primitives onto the screen.
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//
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unsigned long ulBackground;
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|
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//
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//! The font used to render text onto the screen.
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//
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const tFont *pFont;
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}
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tContext;
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//*****************************************************************************
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//
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//! Sets the background color to be used.
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//!
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//! \param pContext is a pointer to the drawing context to modify.
|
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//! \param ulValue is the 24-bit RGB color to be used.
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//!
|
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//! This function sets the background color to be used for drawing operations
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//! in the specified drawing context.
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//!
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//! \return None.
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//
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//*****************************************************************************
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#define GrContextBackgroundSet(pContext, ulValue) \
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do \
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{ \
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tContext *pC = pContext; \
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pC->ulBackground = DpyColorTranslate(pC->pDisplay, ulValue); \
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} \
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while(0)
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|
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//*****************************************************************************
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//
|
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//! Sets the background color to be used.
|
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//!
|
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//! \param pContext is a pointer to the drawing context to modify.
|
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//! \param ulValue is the display driver-specific color to be used.
|
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//!
|
|
//! This function sets the background color to be used for drawing operations
|
|
//! in the specified drawing context, using a color that has been previously
|
|
//! translated to a driver-specific color (for example, via
|
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//! DpyColorTranslate()).
|
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//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrContextBackgroundSetTranslated(pContext, ulValue) \
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do \
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{ \
|
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tContext *pC = pContext; \
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pC->ulBackground = ulValue; \
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|
} \
|
|
while(0)
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|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the width of the display being used by this drawing context.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to query.
|
|
//!
|
|
//! This function returns the width of the display that is being used by this
|
|
//! drawing context.
|
|
//!
|
|
//! \return Returns the width of the display in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrContextDpyWidthGet(pContext) \
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(DpyWidthGet((pContext)->pDisplay))
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|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the height of the display being used by this drawing context.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to query.
|
|
//!
|
|
//! This function returns the height of the display that is being used by this
|
|
//! drawing context.
|
|
//!
|
|
//! \return Returns the height of the display in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrContextDpyHeightGet(pContext) \
|
|
(DpyHeightGet((pContext)->pDisplay))
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Sets the font to be used.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to modify.
|
|
//! \param pFnt is a pointer to the font to be used.
|
|
//!
|
|
//! This function sets the font to be used for string drawing operations in the
|
|
//! specified drawing context. If a tFontEx type font is to be used, cast its
|
|
//! pointer to a pFont pointer before passing it as the pFnt parameter.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrContextFontSet(pContext, pFnt) \
|
|
do \
|
|
{ \
|
|
tContext *pC = pContext; \
|
|
const tFont *pF = pFnt; \
|
|
pC->pFont = pF; \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Sets the foreground color to be used.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to modify.
|
|
//! \param ulValue is the 24-bit RGB color to be used.
|
|
//!
|
|
//! This function sets the color to be used for drawing operations in the
|
|
//! specified drawing context.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrContextForegroundSet(pContext, ulValue) \
|
|
do \
|
|
{ \
|
|
tContext *pC = pContext; \
|
|
pC->ulForeground = DpyColorTranslate(pC->pDisplay, ulValue); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Sets the foreground color to be used.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to modify.
|
|
//! \param ulValue is the display driver-specific color to be used.
|
|
//!
|
|
//! This function sets the foreground color to be used for drawing operations
|
|
//! in the specified drawing context, using a color that has been previously
|
|
//! translated to a driver-specific color (for example, via
|
|
//! DpyColorTranslate()).
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrContextForegroundSetTranslated(pContext, ulValue) \
|
|
do \
|
|
{ \
|
|
tContext *pC = pContext; \
|
|
pC->ulForeground = ulValue; \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Flushes any cached drawing operations.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to use.
|
|
//!
|
|
//! This function flushes any cached drawing operations. For display drivers
|
|
//! that draw into a local frame buffer before writing to the actual display,
|
|
//! calling this function will cause the display to be updated to match the
|
|
//! contents of the local frame buffer.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrFlush(pContext) \
|
|
do \
|
|
{ \
|
|
const tContext *pC = pContext; \
|
|
DpyFlush(pC->pDisplay); \
|
|
} \
|
|
while(0)
|
|
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Forces a clear screen. Contents of Display buffer unmodified
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to use.
|
|
//!
|
|
//! This function forces a clear screen.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrClearDisplay(pContext) \
|
|
do \
|
|
{ \
|
|
const tContext *pC = pContext; \
|
|
DpyClearDisplay(pC->pDisplay,pC->ulBackground ); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the baseline of a font.
|
|
//!
|
|
//! \param pFont is a pointer to the font to query.
|
|
//!
|
|
//! This function determines the baseline position of a font. The baseline is
|
|
//! the offset between the top of the font and the bottom of the capital
|
|
//! letters. The only font data that exists below the baseline are the
|
|
//! descenders on some lower-case letters (such as ``y'').
|
|
//!
|
|
//! \return Returns the baseline of the font, in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrFontBaselineGet(pFont) \
|
|
((pFont)->ucBaseline)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the height of a font.
|
|
//!
|
|
//! \param pFont is a pointer to the font to query.
|
|
//!
|
|
//! This function determines the height of a font. The height is the offset
|
|
//! between the top of the font and the bottom of the font, including any
|
|
//! ascenders and descenders.
|
|
//!
|
|
//! \return Returns the height of the font, in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrFontHeightGet(pFont) \
|
|
((pFont)->ucHeight)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the maximum width of a font.
|
|
//!
|
|
//! \param pFont is a pointer to the font to query.
|
|
//!
|
|
//! This function determines the maximum width of a font. The maximum width is
|
|
//! the width of the widest individual character in the font.
|
|
//!
|
|
//! \return Returns the maximum width of the font, in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrFontMaxWidthGet(pFont) \
|
|
((pFont)->ucMaxWidth)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the number of colors in an image.
|
|
//!
|
|
//! \param pImage is a tImage struct
|
|
//!
|
|
//! This function determines the number of colors in the palette of an image.
|
|
//! This is only valid for 4bpp and 8bpp images; 1bpp images do not contain a
|
|
//! palette.
|
|
//!
|
|
//! \return Returns the number of colors in the image.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrImageColorsGet(pImage) \
|
|
pImage->NumColors
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the height of an image.
|
|
//!
|
|
//! \param pImage is a tImage struct
|
|
//!
|
|
//! This function determines the height of an image in pixels.
|
|
//!
|
|
//! \return Returns the height of the image in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrImageHeightGet(pImage) \
|
|
pImage->YSize
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the width of an image.
|
|
//!
|
|
//! \param pImage is a tImage struct
|
|
//!
|
|
//! This function determines the width of an image in pixels.
|
|
//!
|
|
//! \return Returns the width of the image in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrImageWidthGet(pImage) \
|
|
pImage->XSize
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Determines the size of the buffer for a 1 BPP off-screen image.
|
|
//!
|
|
//! \param lWidth is the width of the image in pixels.
|
|
//! \param lHeight is the height of the image in pixels.
|
|
//!
|
|
//! This function determines the size of the memory buffer required to hold a
|
|
//! 1 BPP off-screen image of the specified geometry.
|
|
//!
|
|
//! \return Returns the number of bytes required by the image.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrOffScreen1BPPSize(lWidth, lHeight) \
|
|
(5 + (((lWidth + 7) / 8) * lHeight))
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Determines the size of the buffer for a 4 BPP off-screen image.
|
|
//!
|
|
//! \param lWidth is the width of the image in pixels.
|
|
//! \param lHeight is the height of the image in pixels.
|
|
//!
|
|
//! This function determines the size of the memory buffer required to hold a
|
|
//! 4 BPP off-screen image of the specified geometry.
|
|
//!
|
|
//! \return Returns the number of bytes required by the image.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrOffScreen4BPPSize(lWidth, lHeight) \
|
|
(6 + (16 * 3) + (((lWidth + 1) / 2) * lHeight))
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Determines the size of the buffer for an 8 BPP off-screen image.
|
|
//!
|
|
//! \param lWidth is the width of the image in pixels.
|
|
//! \param lHeight is the height of the image in pixels.
|
|
//!
|
|
//! This function determines the size of the memory buffer required to hold an
|
|
//! 8 BPP off-screen image of the specified geometry.
|
|
//!
|
|
//! \return Returns the number of bytes required by the image.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrOffScreen8BPPSize(lWidth, lHeight) \
|
|
(6 + (256 * 3) + (lWidth * lHeight))
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Draws a pixel.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to use.
|
|
//! \param lX is the X coordinate of the pixel.
|
|
//! \param lY is the Y coordinate of the pixel.
|
|
//!
|
|
//! This function draws a pixel if it resides within the clipping region.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrPixelDraw(pContext, lX, lY) \
|
|
do \
|
|
{ \
|
|
const tContext *pC = pContext; \
|
|
if((lX >= pC->sClipRegion.sXMin) && \
|
|
(lX <= pC->sClipRegion.sXMax) && \
|
|
(lY >= pC->sClipRegion.sYMin) && \
|
|
(lY <= pC->sClipRegion.sYMax)) \
|
|
{ \
|
|
DpyPixelDraw(pC->pDisplay, lX, lY, pC->ulForeground); \
|
|
} \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the baseline of a string.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to query.
|
|
//!
|
|
//! This function determines the baseline position of a string. The baseline
|
|
//! is the offset between the top of the string and the bottom of the capital
|
|
//! letters. The only string data that exists below the baseline are the
|
|
//! descenders on some lower-case letters (such as ``y'').
|
|
//!
|
|
//! \return Returns the baseline of the string, in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrStringBaselineGet(pContext) \
|
|
((pContext)->pFont->ucBaseline)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Draws a centered string.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to use.
|
|
//! \param pcString is a pointer to the string to be drawn.
|
|
//! \param lLength is the number of characters from the string that should be
|
|
//! drawn on the screen.
|
|
//! \param lX is the X coordinate of the center of the string position on the
|
|
//! screen.
|
|
//! \param lY is the Y coordinate of the center of the string position on the
|
|
//! screen.
|
|
//! \param bOpaque is \b true if the background of each character should be
|
|
//! drawn and \b false if it should not (leaving the background as is).
|
|
//!
|
|
//! This function draws a string of test on the screen centered upon the
|
|
//! provided position. The \e lLength parameter allows a portion of the
|
|
//! string to be examined without having to insert a NULL character at the
|
|
//! stopping point (which would not be possible if the string was located in
|
|
//! flash); specifying a length of -1 will cause the entire string to be
|
|
//! rendered (subject to clipping).
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrStringDrawCentered(pContext, pcString, lLength, lX, lY, bOpaque) \
|
|
do \
|
|
{ \
|
|
const tContext *pC = pContext; \
|
|
const char *pcStr = pcString; \
|
|
\
|
|
GrStringDraw(pC, pcStr, lLength, \
|
|
(lX) - (GrStringWidthGet(pC, pcStr, lLength) / 2), \
|
|
(lY) - (pC->pFont->ucBaseline / 2), bOpaque); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the height of a string.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to query.
|
|
//!
|
|
//! This function determines the height of a string. The height is the offset
|
|
//! between the top of the string and the bottom of the string, including any
|
|
//! ascenders and descenders. Note that this will not account for the case
|
|
//! where the string in question does not have any characters that use
|
|
//! descenders but the font in the drawing context does contain characters with
|
|
//! descenders.
|
|
//!
|
|
//! \return Returns the height of the string, in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrStringHeightGet(pContext) \
|
|
((pContext)->pFont->ucHeight)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the maximum width of a character in a string.
|
|
//!
|
|
//! \param pContext is a pointer to the drawing context to query.
|
|
//!
|
|
//! This function determines the maximum width of a character in a string. The
|
|
//! maximum width is the width of the widest individual character in the font
|
|
//! used to render the string, which may be wider than the widest character
|
|
//! that is used to render a particular string.
|
|
//!
|
|
//! \return Returns the maximum width of a character in a string, in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrStringMaxWidthGet(pContext) \
|
|
((pContext)->pFont->ucMaxWidth)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// A set of color definitions. This set is the subset of the X11 colors (from
|
|
// rgb.txt) that are supported by typical web browsers.
|
|
//
|
|
//*****************************************************************************
|
|
#define ClrAliceBlue 0x00F0F8FF
|
|
#define ClrAntiqueWhite 0x00FAEBD7
|
|
#define ClrAqua 0x0000FFFF
|
|
#define ClrAquamarine 0x007FFFD4
|
|
#define ClrAzure 0x00F0FFFF
|
|
#define ClrBeige 0x00F5F5DC
|
|
#define ClrBisque 0x00FFE4C4
|
|
#define ClrBlack 0x00000000
|
|
#define ClrBlanchedAlmond 0x00FFEBCD
|
|
#define ClrBlue 0x000000FF
|
|
#define ClrBlueViolet 0x008A2BE2
|
|
#define ClrBrown 0x00A52A2A
|
|
#define ClrBurlyWood 0x00DEB887
|
|
#define ClrCadetBlue 0x005F9EA0
|
|
#define ClrChartreuse 0x007FFF00
|
|
#define ClrChocolate 0x00D2691E
|
|
#define ClrCoral 0x00FF7F50
|
|
#define ClrCornflowerBlue 0x006495ED
|
|
#define ClrCornsilk 0x00FFF8DC
|
|
#define ClrCrimson 0x00DC143C
|
|
#define ClrCyan 0x0000FFFF
|
|
#define ClrDarkBlue 0x0000008B
|
|
#define ClrDarkCyan 0x00008B8B
|
|
#define ClrDarkGoldenrod 0x00B8860B
|
|
#define ClrDarkGray 0x00A9A9A9
|
|
#define ClrDarkGreen 0x00006400
|
|
#define ClrDarkKhaki 0x00BDB76B
|
|
#define ClrDarkMagenta 0x008B008B
|
|
#define ClrDarkOliveGreen 0x00556B2F
|
|
#define ClrDarkOrange 0x00FF8C00
|
|
#define ClrDarkOrchid 0x009932CC
|
|
#define ClrDarkRed 0x008B0000
|
|
#define ClrDarkSalmon 0x00E9967A
|
|
#define ClrDarkSeaGreen 0x008FBC8F
|
|
#define ClrDarkSlateBlue 0x00483D8B
|
|
#define ClrDarkSlateGray 0x002F4F4F
|
|
#define ClrDarkTurquoise 0x0000CED1
|
|
#define ClrDarkViolet 0x009400D3
|
|
#define ClrDeepPink 0x00FF1493
|
|
#define ClrDeepSkyBlue 0x0000BFFF
|
|
#define ClrDimGray 0x00696969
|
|
#define ClrDodgerBlue 0x001E90FF
|
|
#define ClrFireBrick 0x00B22222
|
|
#define ClrFloralWhite 0x00FFFAF0
|
|
#define ClrForestGreen 0x00228B22
|
|
#define ClrFuchsia 0x00FF00FF
|
|
#define ClrGainsboro 0x00DCDCDC
|
|
#define ClrGhostWhite 0x00F8F8FF
|
|
#define ClrGold 0x00FFD700
|
|
#define ClrGoldenrod 0x00DAA520
|
|
#define ClrGray 0x00808080
|
|
#define ClrGreen 0x00008000
|
|
#define ClrGreenYellow 0x00ADFF2F
|
|
#define ClrHoneydew 0x00F0FFF0
|
|
#define ClrHotPink 0x00FF69B4
|
|
#define ClrIndianRed 0x00CD5C5C
|
|
#define ClrIndigo 0x004B0082
|
|
#define ClrIvory 0x00FFFFF0
|
|
#define ClrKhaki 0x00F0E68C
|
|
#define ClrLavender 0x00E6E6FA
|
|
#define ClrLavenderBlush 0x00FFF0F5
|
|
#define ClrLawnGreen 0x007CFC00
|
|
#define ClrLemonChiffon 0x00FFFACD
|
|
#define ClrLightBlue 0x00ADD8E6
|
|
#define ClrLightCoral 0x00F08080
|
|
#define ClrLightCyan 0x00E0FFFF
|
|
#define ClrLightGoldenrodYellow 0x00FAFAD2
|
|
#define ClrLightGreen 0x0090EE90
|
|
#define ClrLightGrey 0x00D3D3D3
|
|
#define ClrLightPink 0x00FFB6C1
|
|
#define ClrLightSalmon 0x00FFA07A
|
|
#define ClrLightSeaGreen 0x0020B2AA
|
|
#define ClrLightSkyBlue 0x0087CEFA
|
|
#define ClrLightSlateGray 0x00778899
|
|
#define ClrLightSteelBlue 0x00B0C4DE
|
|
#define ClrLightYellow 0x00FFFFE0
|
|
#define ClrLime 0x0000FF00
|
|
#define ClrLimeGreen 0x0032CD32
|
|
#define ClrLinen 0x00FAF0E6
|
|
#define ClrMagenta 0x00FF00FF
|
|
#define ClrMaroon 0x00800000
|
|
#define ClrMediumAquamarine 0x0066CDAA
|
|
#define ClrMediumBlue 0x000000CD
|
|
#define ClrMediumOrchid 0x00BA55D3
|
|
#define ClrMediumPurple 0x009370DB
|
|
#define ClrMediumSeaGreen 0x003CB371
|
|
#define ClrMediumSlateBlue 0x007B68EE
|
|
#define ClrMediumSpringGreen 0x0000FA9A
|
|
#define ClrMediumTurquoise 0x0048D1CC
|
|
#define ClrMediumVioletRed 0x00C71585
|
|
#define ClrMidnightBlue 0x00191970
|
|
#define ClrMintCream 0x00F5FFFA
|
|
#define ClrMistyRose 0x00FFE4E1
|
|
#define ClrMoccasin 0x00FFE4B5
|
|
#define ClrNavajoWhite 0x00FFDEAD
|
|
#define ClrNavy 0x00000080
|
|
#define ClrOldLace 0x00FDF5E6
|
|
#define ClrOlive 0x00808000
|
|
#define ClrOliveDrab 0x006B8E23
|
|
#define ClrOrange 0x00FFA500
|
|
#define ClrOrangeRed 0x00FF4500
|
|
#define ClrOrchid 0x00DA70D6
|
|
#define ClrPaleGoldenrod 0x00EEE8AA
|
|
#define ClrPaleGreen 0x0098FB98
|
|
#define ClrPaleTurquoise 0x00AFEEEE
|
|
#define ClrPaleVioletRed 0x00DB7093
|
|
#define ClrPapayaWhip 0x00FFEFD5
|
|
#define ClrPeachPuff 0x00FFDAB9
|
|
#define ClrPeru 0x00CD853F
|
|
#define ClrPink 0x00FFC0CB
|
|
#define ClrPlum 0x00DDA0DD
|
|
#define ClrPowderBlue 0x00B0E0E6
|
|
#define ClrPurple 0x00800080
|
|
#define ClrRed 0x00FF0000
|
|
#define ClrRosyBrown 0x00BC8F8F
|
|
#define ClrRoyalBlue 0x004169E1
|
|
#define ClrSaddleBrown 0x008B4513
|
|
#define ClrSalmon 0x00FA8072
|
|
#define ClrSandyBrown 0x00F4A460
|
|
#define ClrSeaGreen 0x002E8B57
|
|
#define ClrSeashell 0x00FFF5EE
|
|
#define ClrSienna 0x00A0522D
|
|
#define ClrSilver 0x00C0C0C0
|
|
#define ClrSkyBlue 0x0087CEEB
|
|
#define ClrSlateBlue 0x006A5ACD
|
|
#define ClrSlateGray 0x00708090
|
|
#define ClrSnow 0x00FFFAFA
|
|
#define ClrSpringGreen 0x0000FF7F
|
|
#define ClrSteelBlue 0x004682B4
|
|
#define ClrTan 0x00D2B48C
|
|
#define ClrTeal 0x00008080
|
|
#define ClrThistle 0x00D8BFD8
|
|
#define ClrTomato 0x00FF6347
|
|
#define ClrTurquoise 0x0040E0D0
|
|
#define ClrViolet 0x00EE82EE
|
|
#define ClrWheat 0x00F5DEB3
|
|
#define ClrWhite 0x00FFFFFF
|
|
#define ClrWhiteSmoke 0x00F5F5F5
|
|
#define ClrYellow 0x00FFFF00
|
|
#define ClrYellowGreen 0x009ACD32
|
|
#define ClrBlack 0x00000000
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Masks and shifts to aid in color format translation by drivers.
|
|
//
|
|
//*****************************************************************************
|
|
#define ClrRedMask 0x00FF0000
|
|
#define ClrRedShift 16
|
|
#define ClrGreenMask 0x0000FF00
|
|
#define ClrGreenShift 8
|
|
#define ClrBlueMask 0x000000FF
|
|
#define ClrBlueShift 0
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Prototypes for the predefined fonts in the graphics library. ..Cm.. is the
|
|
// computer modern font, which is a serif font. ..Cmsc.. is the computer
|
|
// modern small-caps font, which is also a serif font. ..Cmss.. is the
|
|
// computer modern sans-serif font.
|
|
//
|
|
//*****************************************************************************
|
|
extern const tFont g_sFontCm12;
|
|
extern const tFont g_sFontCm12b;
|
|
extern const tFont g_sFontCm12i;
|
|
extern const tFont g_sFontCm14;
|
|
extern const tFont g_sFontCm14b;
|
|
extern const tFont g_sFontCm14i;
|
|
extern const tFont g_sFontCm16;
|
|
extern const tFont g_sFontCm16b;
|
|
extern const tFont g_sFontCm16i;
|
|
extern const tFont g_sFontCm18;
|
|
extern const tFont g_sFontCm18b;
|
|
extern const tFont g_sFontCm18i;
|
|
extern const tFont g_sFontCm20;
|
|
extern const tFont g_sFontCm20b;
|
|
extern const tFont g_sFontCm20i;
|
|
extern const tFont g_sFontCm22;
|
|
extern const tFont g_sFontCm22b;
|
|
extern const tFont g_sFontCm22i;
|
|
extern const tFont g_sFontCm24;
|
|
extern const tFont g_sFontCm24b;
|
|
extern const tFont g_sFontCm24i;
|
|
extern const tFont g_sFontCm26;
|
|
extern const tFont g_sFontCm26b;
|
|
extern const tFont g_sFontCm26i;
|
|
extern const tFont g_sFontCm28;
|
|
extern const tFont g_sFontCm28b;
|
|
extern const tFont g_sFontCm28i;
|
|
extern const tFont g_sFontCm30;
|
|
extern const tFont g_sFontCm30b;
|
|
extern const tFont g_sFontCm30i;
|
|
extern const tFont g_sFontCm32;
|
|
extern const tFont g_sFontCm32b;
|
|
extern const tFont g_sFontCm32i;
|
|
extern const tFont g_sFontCm34;
|
|
extern const tFont g_sFontCm34b;
|
|
extern const tFont g_sFontCm34i;
|
|
extern const tFont g_sFontCm36;
|
|
extern const tFont g_sFontCm36b;
|
|
extern const tFont g_sFontCm36i;
|
|
extern const tFont g_sFontCm38;
|
|
extern const tFont g_sFontCm38b;
|
|
extern const tFont g_sFontCm38i;
|
|
extern const tFont g_sFontCm40;
|
|
extern const tFont g_sFontCm40b;
|
|
extern const tFont g_sFontCm40i;
|
|
extern const tFont g_sFontCm42;
|
|
extern const tFont g_sFontCm42b;
|
|
extern const tFont g_sFontCm42i;
|
|
extern const tFont g_sFontCm44;
|
|
extern const tFont g_sFontCm44b;
|
|
extern const tFont g_sFontCm44i;
|
|
extern const tFont g_sFontCm46;
|
|
extern const tFont g_sFontCm46b;
|
|
extern const tFont g_sFontCm46i;
|
|
extern const tFont g_sFontCm48;
|
|
extern const tFont g_sFontCm48b;
|
|
extern const tFont g_sFontCm48i;
|
|
extern const tFont g_sFontCmsc12;
|
|
extern const tFont g_sFontCmsc14;
|
|
extern const tFont g_sFontCmsc16;
|
|
extern const tFont g_sFontCmsc18;
|
|
extern const tFont g_sFontCmsc20;
|
|
extern const tFont g_sFontCmsc22;
|
|
extern const tFont g_sFontCmsc24;
|
|
extern const tFont g_sFontCmsc26;
|
|
extern const tFont g_sFontCmsc28;
|
|
extern const tFont g_sFontCmsc30;
|
|
extern const tFont g_sFontCmsc32;
|
|
extern const tFont g_sFontCmsc34;
|
|
extern const tFont g_sFontCmsc36;
|
|
extern const tFont g_sFontCmsc38;
|
|
extern const tFont g_sFontCmsc40;
|
|
extern const tFont g_sFontCmsc42;
|
|
extern const tFont g_sFontCmsc44;
|
|
extern const tFont g_sFontCmsc46;
|
|
extern const tFont g_sFontCmsc48;
|
|
extern const tFont g_sFontCmss12;
|
|
extern const tFont g_sFontCmss12b;
|
|
extern const tFont g_sFontCmss12i;
|
|
extern const tFont g_sFontCmss14;
|
|
extern const tFont g_sFontCmss14b;
|
|
extern const tFont g_sFontCmss14i;
|
|
extern const tFont g_sFontCmss16;
|
|
extern const tFont g_sFontCmss16b;
|
|
extern const tFont g_sFontCmss16i;
|
|
extern const tFont g_sFontCmss18;
|
|
extern const tFont g_sFontCmss18b;
|
|
extern const tFont g_sFontCmss18i;
|
|
extern const tFont g_sFontCmss20;
|
|
extern const tFont g_sFontCmss20b;
|
|
extern const tFont g_sFontCmss20i;
|
|
extern const tFont g_sFontCmss22;
|
|
extern const tFont g_sFontCmss22b;
|
|
extern const tFont g_sFontCmss22i;
|
|
extern const tFont g_sFontCmss24;
|
|
extern const tFont g_sFontCmss24b;
|
|
extern const tFont g_sFontCmss24i;
|
|
extern const tFont g_sFontCmss26;
|
|
extern const tFont g_sFontCmss26b;
|
|
extern const tFont g_sFontCmss26i;
|
|
extern const tFont g_sFontCmss28;
|
|
extern const tFont g_sFontCmss28b;
|
|
extern const tFont g_sFontCmss28i;
|
|
extern const tFont g_sFontCmss30;
|
|
extern const tFont g_sFontCmss30b;
|
|
extern const tFont g_sFontCmss30i;
|
|
extern const tFont g_sFontCmss32;
|
|
extern const tFont g_sFontCmss32b;
|
|
extern const tFont g_sFontCmss32i;
|
|
extern const tFont g_sFontCmss34;
|
|
extern const tFont g_sFontCmss34b;
|
|
extern const tFont g_sFontCmss34i;
|
|
extern const tFont g_sFontCmss36;
|
|
extern const tFont g_sFontCmss36b;
|
|
extern const tFont g_sFontCmss36i;
|
|
extern const tFont g_sFontCmss38;
|
|
extern const tFont g_sFontCmss38b;
|
|
extern const tFont g_sFontCmss38i;
|
|
extern const tFont g_sFontCmss40;
|
|
extern const tFont g_sFontCmss40b;
|
|
extern const tFont g_sFontCmss40i;
|
|
extern const tFont g_sFontCmss42;
|
|
extern const tFont g_sFontCmss42b;
|
|
extern const tFont g_sFontCmss42i;
|
|
extern const tFont g_sFontCmss44;
|
|
extern const tFont g_sFontCmss44b;
|
|
extern const tFont g_sFontCmss44i;
|
|
extern const tFont g_sFontCmss46;
|
|
extern const tFont g_sFontCmss46b;
|
|
extern const tFont g_sFontCmss46i;
|
|
extern const tFont g_sFontCmss48;
|
|
extern const tFont g_sFontCmss48b;
|
|
extern const tFont g_sFontCmss48i;
|
|
extern const tFont g_sFontCmtt12;
|
|
extern const tFont g_sFontCmtt14;
|
|
extern const tFont g_sFontCmtt16;
|
|
extern const tFont g_sFontCmtt18;
|
|
extern const tFont g_sFontCmtt20;
|
|
extern const tFont g_sFontCmtt22;
|
|
extern const tFont g_sFontCmtt24;
|
|
extern const tFont g_sFontCmtt26;
|
|
extern const tFont g_sFontCmtt28;
|
|
extern const tFont g_sFontCmtt30;
|
|
extern const tFont g_sFontCmtt32;
|
|
extern const tFont g_sFontCmtt34;
|
|
extern const tFont g_sFontCmtt36;
|
|
extern const tFont g_sFontCmtt38;
|
|
extern const tFont g_sFontCmtt40;
|
|
extern const tFont g_sFontCmtt42;
|
|
extern const tFont g_sFontCmtt44;
|
|
extern const tFont g_sFontCmtt46;
|
|
extern const tFont g_sFontCmtt48;
|
|
extern const tFont g_sFontFixed6x8;
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Language identifiers supported by the string table processing functions.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrLangZhPRC 0x0804 // Chinese (PRC)
|
|
#define GrLangZhTW 0x0404 // Chinese (Taiwan)
|
|
#define GrLangEnUS 0x0409 // English (United States)
|
|
#define GrLangEnUK 0x0809 // English (United Kingdom)
|
|
#define GrLangEnAUS 0x0C09 // English (Australia)
|
|
#define GrLangEnCA 0x1009 // English (Canada)
|
|
#define GrLangEnNZ 0x1409 // English (New Zealand)
|
|
#define GrLangFr 0x040C // French (Standard)
|
|
#define GrLangDe 0x0407 // German (Standard)
|
|
#define GrLangHi 0x0439 // Hindi
|
|
#define GrLangIt 0x0410 // Italian (Standard)
|
|
#define GrLangJp 0x0411 // Japanese
|
|
#define GrLangKo 0x0412 // Korean
|
|
#define GrLangEsMX 0x080A // Spanish (Mexico)
|
|
#define GrLangEsSP 0x0C0A // Spanish (Spain)
|
|
#define GrLangSwKE 0x0441 // Swahili (Kenya)
|
|
#define GrLangUrIN 0x0820 // Urdu (India)
|
|
#define GrLangUrPK 0x0420 // Urdu (Pakistan)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Translates a 24-bit RGB color to a display driver-specific color.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param ulValue is the 24-bit RGB color. The least-significant byte is the
|
|
//! blue channel, the next byte is the green channel, and the third byte is the
|
|
//! red channel.
|
|
//!
|
|
//! This function translates a 24-bit RGB color into a value that can be
|
|
//! written into the display's frame buffer in order to reproduce that color,
|
|
//! or the closest possible approximation of that color.
|
|
//!
|
|
//! \return Returns the display-driver specific color.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyColorTranslate(pDisplay, ulValue) \
|
|
((pDisplay)->pfnColorTranslate((pDisplay)->pvDisplayData, ulValue))
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Flushes cached drawing operations.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//!
|
|
//! This function flushes any cached drawing operations on a display.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyFlush(pDisplay) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnFlush(pD->pvDisplayData); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Forces a clear Display.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param ulValue is the current background color to fill the screen with.
|
|
//!
|
|
//! This function clears the Display
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyClearDisplay(pDisplay, ulValue) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnClearDisplay(pD->pvDisplayData, ulValue); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the height of the display.
|
|
//!
|
|
//! \param pDisplay is a pointer to the display driver structure for the
|
|
//! display to query.
|
|
//!
|
|
//! This function determines the height of the display.
|
|
//!
|
|
//! \return Returns the height of the display in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyHeightGet(pDisplay) \
|
|
((pDisplay)->usHeight)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Draws a horizontal line on a display.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param lX1 is the starting X coordinate of the line.
|
|
//! \param lX2 is the ending X coordinate of the line.
|
|
//! \param lY is the Y coordinate of the line.
|
|
//! \param ulValue is the color to draw the line.
|
|
//!
|
|
//! This function draws a horizontal line on a display. This assumes that
|
|
//! clipping has already been performed, and that both end points of the line
|
|
//! are within the extents of the display.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyLineDrawH(pDisplay, lX1, lX2, lY, ulValue) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnLineDrawH(pD->pvDisplayData, lX1, lX2, lY, ulValue); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Draws a vertical line on a display.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param lX is the X coordinate of the line.
|
|
//! \param lY1 is the starting Y coordinate of the line.
|
|
//! \param lY2 is the ending Y coordinate of the line.
|
|
//! \param ulValue is the color to draw the line.
|
|
//!
|
|
//! This function draws a vertical line on a display. This assumes that
|
|
//! clipping has already been performed, and that both end points of the line
|
|
//! are within the extents of the display.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyLineDrawV(pDisplay, lX, lY1, lY2, ulValue) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnLineDrawV(pD->pvDisplayData, lX, lY1, lY2, ulValue); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Draws a pixel on a display.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param lX is the X coordinate of the pixel.
|
|
//! \param lY is the Y coordinate of the pixel.
|
|
//! \param ulValue is the color to draw the pixel.
|
|
//!
|
|
//! This function draws a pixel on a display. This assumes that clipping has
|
|
//! already been performed.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyPixelDraw(pDisplay, lX, lY, ulValue) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnPixelDraw(pD->pvDisplayData, lX, lY, ulValue); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Draws a horizontal sequence of pixels on a display.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param lX is the X coordinate of the first pixel.
|
|
//! \param lY is the Y coordinate of the first pixel.
|
|
//! \param lX0 is sub-pixel offset within the pixel data, which is valid for 1
|
|
//! or 4 bit per pixel formats.
|
|
//! \param lCount is the number of pixels to draw.
|
|
//! \param lBPP is the number of bits per pixel; must be 1, 4, or 8.
|
|
//! \param pucData is a pointer to the pixel data. For 1 and 4 bit per pixel
|
|
//! formats, the most significant bit(s) represent the left-most pixel.
|
|
//! \param pucPalette is a pointer to the palette used to draw the pixels.
|
|
//!
|
|
//! This function draws a horizontal sequence of pixels on a display, using the
|
|
//! supplied palette. For 1 bit per pixel format, the palette contains
|
|
//! pre-translated colors; for 4 and 8 bit per pixel formats, the palette
|
|
//! contains 24-bit RGB values that must be translated before being written to
|
|
//! the display.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyPixelDrawMultiple(pDisplay, lX, lY, lX0, lCount, lBPP, pucData, \
|
|
pucPalette) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnPixelDrawMultiple(pD->pvDisplayData, lX, lY, lX0, lCount, \
|
|
lBPP, pucData, pucPalette); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Fills a rectangle on a display.
|
|
//!
|
|
//! \param pDisplay is the pointer to the display driver structure for the
|
|
//! display to operate upon.
|
|
//! \param pRect is a pointer to the structure describing the rectangle to
|
|
//! fill.
|
|
//! \param ulValue is the color to fill the rectangle.
|
|
//!
|
|
//! This function fills a rectangle on the display. This assumes that clipping
|
|
//! has already been performed, and that all sides of the rectangle are within
|
|
//! the extents of the display.
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyRectFill(pDisplay, pRect, ulValue) \
|
|
do \
|
|
{ \
|
|
const tDisplay *pD = pDisplay; \
|
|
pD->pfnRectFill(pD->pvDisplayData, pRect, ulValue); \
|
|
} \
|
|
while(0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Gets the width of the display.
|
|
//!
|
|
//! \param pDisplay is a pointer to the display driver structure for the
|
|
//! display to query.
|
|
//!
|
|
//! This function determines the width of the display.
|
|
//!
|
|
//! \return Returns the width of the display in pixels.
|
|
//
|
|
//*****************************************************************************
|
|
#define DpyWidthGet(pDisplay) \
|
|
((pDisplay)->usWidth)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Determines if a point lies within a given rectangle.
|
|
//!
|
|
//! \param pRect is a pointer to the rectangle which the point is to be checked
|
|
//! against.
|
|
//! \param lX is the X coordinate of the point to be checked.
|
|
//! \param lY is the Y coordinate of the point to be checked.
|
|
//!
|
|
//! This function determines whether point (lX, lY) lies within the rectangle
|
|
//! described by \e pRect.
|
|
//!
|
|
//! \return Returns 1 if the point is within the rectangle or 0 otherwise.
|
|
//
|
|
//*****************************************************************************
|
|
#define GrRectContainsPoint(pRect, lX, lY) \
|
|
((((lX) >= (pRect)->sXMin) && ((lX) <= (pRect)->sXMax) && \
|
|
((lY) >= (pRect)->sYMin) && ((lY) <= (pRect)->sYMax)) ? 1 : 0)
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Prototypes for the graphics library functions.
|
|
//
|
|
//*****************************************************************************
|
|
extern void GrCircleDraw(const tContext *pContext, long lX, long lY,
|
|
long lRadius);
|
|
extern void GrCircleFill(const tContext *pContext, long lX, long lY,
|
|
long lRadius);
|
|
extern void GrContextClipRegionSet(tContext *pContext, tRectangle *pRect);
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extern void GrContextInit(tContext *pContext, const tDisplay *pDisplay);
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extern void GrImageDraw(const tContext *pContext,
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const tImage *pBitmap, int lX, int lY);
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extern void GrLineDraw(const tContext *pContext, long lX1, long lY1, long lX2,
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long lY2);
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extern void GrLineDrawH(const tContext *pContext, long lX1, long lX2, long lY);
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extern void GrLineDrawV(const tContext *pContext, long lX, long lY1, long lY2);
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extern void GrRectDraw(const tContext *pContext, const tRectangle *pRect);
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extern void GrRectFill(const tContext *pContext, const tRectangle *pRect);
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extern void GrStringDraw(const tContext *pContext, const char *pcString,
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long lLength, long lX, long lY,
|
|
unsigned long bOpaque);
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|
extern long GrStringWidthGet(const tContext *pContext, const char *pcString,
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|
long lLength);
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|
extern long GrRectOverlapCheck(tRectangle *psRect1, tRectangle *psRect2);
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extern long GrRectIntersectGet(tRectangle *psRect1, tRectangle *psRect2,
|
|
tRectangle *psIntersect);
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|
|
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//*****************************************************************************
|
|
//
|
|
// Mark the end of the C bindings section for C++ compilers.
|
|
//
|
|
//*****************************************************************************
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Close the Doxygen group.
|
|
//! @}
|
|
//
|
|
//*****************************************************************************
|
|
|
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#endif // __GRLIB_H__
|