93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/*****************************************************************************/
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/* ここから */
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/*****************************************************************************/
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#include "WWLCDPanelP.h"
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/*****************************************************************************/
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/* メンバ関数の定義 */
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/*****************************************************************************/
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int WWLCDPanel_GetWidth( WWLCDPanel p) { return (p->width ); }
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int WWLCDPanel_GetHeight(WWLCDPanel p) { return (p->height); }
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int WWLCDPanel_SetWidth( WWLCDPanel p, int n) { return (p->width = n); }
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int WWLCDPanel_SetHeight(WWLCDPanel p, int n) { return (p->height = n); }
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unsigned char * WWLCDPanel_GetPixelMap(WWLCDPanel p) { return (p->pixel); }
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/* LCDは１ピクセル16色(４ビット必要) */
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int WWLCDPanel_GetPixel(WWLCDPanel lcd_panel, int x, int y)
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{
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unsigned char pixel;
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if ( (x < 0) || (x > WWLCDPanel_GetWidth(lcd_panel) - 1) ||
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(y < 0) || (y > WWLCDPanel_GetHeight(lcd_panel) - 1) )
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return (-1);
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pixel = lcd_panel->pixel[y * (WWLCDPanel_GetWidth(lcd_panel) / 2) + x / 2];
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if (x % 2) pixel = pixel >> 4;
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pixel &= 0x0f;
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return ((int)pixel);
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}
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int WWLCDPanel_SetPixel(WWLCDPanel lcd_panel, int x, int y, int pixel)
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{
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unsigned char p;
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int n;
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if ( (x < 0) || (x > WWLCDPanel_GetWidth(lcd_panel) - 1) ||
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(y < 0) || (y > WWLCDPanel_GetHeight(lcd_panel) - 1) )
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return (-1);
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p = 0x0f;
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if (x % 2) p = p << 4;
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n = y * (WWLCDPanel_GetWidth(lcd_panel) / 2) + x / 2;
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lcd_panel->pixel[n] &= ~p;
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p = ((unsigned char)pixel) & 0x0f;
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if (x % 2) p = p << 4;
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lcd_panel->pixel[n] |= p;
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return (pixel);
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}
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WWLCDPanel WWLCDPanel_Create(int width, int height)
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{
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WWLCDPanel lcd_panel;
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int x, y;
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lcd_panel = (WWLCDPanel)malloc(sizeof(_WWLCDPanel));
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if (lcd_panel == NULL) Error("WWLCDPanel_Create", "Cannot allocate memory.");
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WWLCDPanel_SetWidth( lcd_panel, width);
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WWLCDPanel_SetHeight(lcd_panel, height);
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lcd_panel->pixel =
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(unsigned char *)malloc(sizeof(unsigned char) *
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(WWLCDPanel_GetWidth(lcd_panel) / 2) *
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WWLCDPanel_GetHeight(lcd_panel));
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for (y = 0; y < lcd_panel->height; y++) {
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for (x = 0; x < lcd_panel->width / 2; x++) {
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WWLCDPanel_SetPixel(lcd_panel, x, y, 0x00);
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}
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}
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return (lcd_panel);
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}
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WWLCDPanel WWLCDPanel_Destroy(WWLCDPanel lcd_panel)
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{
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if (lcd_panel == NULL) return (NULL);
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if (lcd_panel->pixel) free(lcd_panel->pixel);
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free(lcd_panel);
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return (NULL);
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}
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/*****************************************************************************/
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/* ここまで */
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/*****************************************************************************/
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/*****************************************************************************/
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/* End of File. */
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/*****************************************************************************/
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