wonx/WWDisplay.c
Hiroaki Sakai 3547ae13a1 Significantly modified WWDisplay_DrawScreen () algorithm.
It did not get much faster.  When the X server drawing is a hot spot
Since it seems, efforts to reduce drawing amount are necessary.

Version 0.0.6 alpha - from wonx-a06.tar.gz
2000-10-04 12:00:00 +09:00

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/*****************************************************************************/
/* ここから */
/*****************************************************************************/
#include "WWDisplayP.h"
/*****************************************************************************/
/* メンバ関数の定義 */
/*****************************************************************************/
/*===========================================================================*/
/* メンバの取得 */
/*===========================================================================*/
WWColorMap WWDisplay_GetColorMap(WWDisplay d) { return (d->color_map); }
WWPalette WWDisplay_GetPalette(WWDisplay d, int n) { return (d->palette[n]); }
WWCharacter WWDisplay_GetCharacter(WWDisplay d, int n)
{ return (d->character[n]); }
WWSprite WWDisplay_GetSprite(WWDisplay d, int n) { return (d->sprite[n]); }
WWScreen WWDisplay_GetScreen(WWDisplay d, int n) { return (d->screen[n]); }
WWLCDPanel WWDisplay_GetLCDPanel(WWDisplay d) { return (d->lcd_panel); }
int WWDisplay_GetSpriteEnable(WWDisplay d) { return (d->sprite_enable); }
int WWDisplay_GetSpriteWindowEnable(WWDisplay d)
{ return (d->sprite_window_enable); }
int WWDisplay_GetSpriteWindowX(WWDisplay d)
{ return (d->sprite_window_x); }
int WWDisplay_GetSpriteWindowY(WWDisplay d)
{ return (d->sprite_window_y); }
int WWDisplay_GetSpriteWindowWidth(WWDisplay d)
{ return (d->sprite_window_width); }
int WWDisplay_GetSpriteWindowHeight(WWDisplay d)
{ return (d->sprite_window_height); }
int WWDisplay_GetBorder(WWDisplay d) { return (d->border); }
int WWDisplay_GetForegroundColor(WWDisplay d) { return (d->foreground_color); }
int WWDisplay_GetBackgroundColor(WWDisplay d) { return (d->background_color); }
int WWDisplay_GetSpriteStart(WWDisplay d) { return (d->sprite_start); }
int WWDisplay_GetSpriteCount(WWDisplay d) { return (d->sprite_count); }
/*===========================================================================*/
/* メンバの設定 */
/*===========================================================================*/
WWColorMap WWDisplay_SetColorMap(WWDisplay d, WWColorMap cm)
{ return (d->color_map = cm); }
WWPalette WWDisplay_SetPalette(WWDisplay d, int n, WWPalette p)
{ return (d->palette[n] = p); }
WWCharacter WWDisplay_SetCharacter(WWDisplay d, int n, WWCharacter c)
{ return (d->character[n] = c); }
WWSprite WWDisplay_SetSprite(WWDisplay d, int n, WWSprite s)
{ return (d->sprite[n] = s); }
WWScreen WWDisplay_SetScreen(WWDisplay d, int n, WWScreen s)
{ return (d->screen[n] = s); }
WWLCDPanel WWDisplay_SetLCDPanel(WWDisplay d, WWLCDPanel p)
{ return (d->lcd_panel = p); }
int WWDisplay_SetSpriteEnable(WWDisplay d, int f)
{ return (d->sprite_enable = f); }
int WWDisplay_SetSpriteWindowEnable(WWDisplay d, int f)
{ return (d->sprite_window_enable = f); }
int WWDisplay_SetSpriteWindowX(WWDisplay d, int n)
{ return (d->sprite_window_x = n); }
int WWDisplay_SetSpriteWindowY(WWDisplay d, int n)
{ return (d->sprite_window_y = n); }
int WWDisplay_SetSpriteWindowWidth(WWDisplay d, int n)
{ return (d->sprite_window_width = n); }
int WWDisplay_SetSpriteWindowHeight(WWDisplay d, int n)
{ return (d->sprite_window_height = n); }
int WWDisplay_SetBorder(WWDisplay d, int b) { return (d->border = b); }
int WWDisplay_SetForegroundColor(WWDisplay d, int c)
{ return (d->foreground_color = c); }
int WWDisplay_SetBackgroundColor(WWDisplay d, int c)
{ return (d->background_color = c); }
int WWDisplay_SetSpriteStart(WWDisplay d, int n)
{ return (d->sprite_start = n); }
int WWDisplay_SetSpriteCount(WWDisplay d, int n)
{ return (d->sprite_count = n); }
/*===========================================================================*/
/* オブジェクトの生成と消去 */
/*===========================================================================*/
WWDisplay WWDisplay_Create(int lcd_panel_width, int lcd_panel_height,
int screen_width, int screen_height)
{
WWDisplay display;
int i;
display = (WWDisplay)malloc(sizeof(_WWDisplay));
if (display == NULL) Error("WWDisplay_Create", "Cannot allocate memory.");
WWDisplay_SetColorMap(display, WWColorMap_Create(NULL));
for (i = 0; i < 16; i++) {
WWDisplay_SetPalette(display, i,
WWPalette_Create(i, NULL, ((i / 4) % 2) ? 1 : 0));
}
for (i = 0; i < 512; i++) {
WWDisplay_SetCharacter(display, i, WWCharacter_Create(i, NULL));
}
for (i = 0; i < 128; i++) {
WWDisplay_SetSprite(display, i,
WWSprite_Create(i, 0, 0, 0, 0, 0, 0,
WWDisplay_GetPalette(display, 0),
WWDisplay_GetCharacter(display, 0)));
}
for (i = 0; i < 2; i++) {
WWDisplay_SetScreen(display, i,
WWScreen_Create(i, screen_width, screen_height,
WWDisplay_GetPalette(display, 0),
WWDisplay_GetCharacter(display, 0),
0, 0,
lcd_panel_width, lcd_panel_height));
}
WWDisplay_SetLCDPanel(display, WWLCDPanel_Create(lcd_panel_width,
lcd_panel_height));
WWDisplay_SetSpriteEnable(display, 0);
WWDisplay_SetSpriteWindowEnable(display, 0);
WWDisplay_SetSpriteWindowX( display, 0);
WWDisplay_SetSpriteWindowY( display, 0);
WWDisplay_SetSpriteWindowWidth( display, lcd_panel_width);
WWDisplay_SetSpriteWindowHeight(display, lcd_panel_height);
WWDisplay_SetBorder(display, 0);
WWDisplay_SetForegroundColor(display, 3);
WWDisplay_SetBackgroundColor(display, 0);
WWDisplay_SetSpriteStart(display, 0);
WWDisplay_SetSpriteCount(display, 0);
return (display);
}
WWDisplay WWDisplay_Destroy(WWDisplay display)
{
int i;
if (display == NULL) return (NULL);
if (WWDisplay_GetColorMap(display) != NULL)
WWDisplay_SetColorMap(display,
WWColorMap_Destroy(WWDisplay_GetColorMap(display)));
for (i = 0; i < 16; i++) {
if (WWDisplay_GetPalette(display, i) != NULL)
WWDisplay_SetPalette(display, i,
WWPalette_Destroy(WWDisplay_GetPalette(display, i))
);
}
for (i = 0; i < 512; i++) {
if (WWDisplay_GetCharacter(display, i) != NULL)
WWDisplay_SetCharacter(display, i,
WWCharacter_Destroy(WWDisplay_GetCharacter(display
, i)));
}
for (i = 0; i < 128; i++) {
if (WWDisplay_GetSprite(display, i) != NULL)
WWDisplay_SetSprite(display, i,
WWSprite_Destroy(WWDisplay_GetSprite(display, i)));
}
for (i = 0; i < 2; i++) {
if (WWDisplay_GetScreen(display, i) != NULL)
WWDisplay_SetScreen(display, i,
WWScreen_Destroy(WWDisplay_GetScreen(display, i)));
}
if (WWDisplay_GetLCDPanel(display) != NULL)
WWDisplay_SetLCDPanel(display,
WWLCDPanel_Destroy(WWDisplay_GetLCDPanel(display)));
free(display);
return (NULL);
}
/*===========================================================================*/
/* LCDパネルの描画 */
/*===========================================================================*/
static int WWDisplay_DrawScreen(WWDisplay display, WWScreen screen,
int lcd_x, int lcd_y)
{
int pixel;
int px, py;
int sx, sy, ex, ey;
if (!WWScreen_GetEnable(screen)) return (-1);
if ( (WWScreen_GetMode(screen) == WWSCREEN_INSIDE_ONLY) ||
(WWScreen_GetMode(screen) == WWSCREEN_OUTSIDE_ONLY) ) {
sx = WWScreen_GetDrawX(screen);
sy = WWScreen_GetDrawX(screen);
/*
* マニュアルの screen2_set_window() の説明には「表示領域の横幅と縦幅」と
* 書いてあるが,実際には「表示領域の横幅+1と縦幅+1」で動作する
* みたい?(未確認)なので,-1 しなくてよい?
* もしくはWonderWitch での実際の動作は,
* ex = sx + WWScreen_GetDrawWidth( screen);
* でなく
* ex = WWScreen_GetDrawWidth( screen);
* なのかもしれない.
*/
#if 0
ex = sx + WWScreen_GetDrawWidth( screen) - 1;
ey = sy + WWScreen_GetDrawHeight(screen) - 1;
#else
ex = sx + WWScreen_GetDrawWidth( screen);
ey = sy + WWScreen_GetDrawHeight(screen);
#endif
}
switch (WWScreen_GetMode(screen)) {
case WWSCREEN_INSIDE_ONLY:
if ( (lcd_x < sx) || (lcd_x > ex) || (lcd_y < sy) || (lcd_y > ey) )
return (-1);
break;
case WWSCREEN_OUTSIDE_ONLY:
if ( !( (lcd_x < sx) || (lcd_x > ex) || (lcd_y < sy) || (lcd_y > ey) ) )
return (-1);
break;
}
px = lcd_x + WWScreen_GetRollX(screen);
py = lcd_y + WWScreen_GetRollY(screen);
pixel = WWScreen_GetPixel(screen, px, py);
/* 透明色の場合 */
if (pixel == -1) return (-1);
pixel = WWColorMap_GetLCDColor(WWDisplay_GetColorMap(display), pixel);
WWLCDPanel_SetPixel(WWDisplay_GetLCDPanel(display), lcd_x, lcd_y, pixel);
return (pixel);
}
static int WWDisplay_DrawSprite(WWDisplay display, WWSprite sprite,
int lcd_x, int lcd_y)
{
int x, y, sprite_x, sprite_y;
int sx, sy, ex, ey;
int pixel, outside;
sx = WWDisplay_GetSpriteWindowX(display) - 1;
sy = WWDisplay_GetSpriteWindowY(display) - 1;
/* 以下は WWDisplay_DrawScreen() に合わせた */
#if 0
ex = sx + WWDisplay_GetSpriteWindowWidth(display) - 1;
ey = sy + WWDisplay_GetSpriteWindowHeight(display) - 1;
#else
ex = sx + WWDisplay_GetSpriteWindowWidth(display);
ey = sy + WWDisplay_GetSpriteWindowHeight(display);
#endif
sprite_x = WWSprite_GetX(sprite);
sprite_y = WWSprite_GetY(sprite);
if ( (lcd_x < sprite_x) || (lcd_x > sprite_x + 7) ||
(lcd_y < sprite_y) || (lcd_y > sprite_y + 7) )
return (-1);
x = lcd_x - sprite_x;
y = lcd_y - sprite_y;
pixel = WWSprite_GetPixel(sprite, x, y);
/* 透明色の場合 */
if (pixel == -1) return (-1);
if (WWDisplay_GetSpriteWindowEnable(display)) {
if ( (lcd_x < sx) || (lcd_y < sy) || (lcd_x > ex) || (lcd_y > ey) )
outside = 1;
else
outside = 0;
if (WWSprite_GetClipping(sprite)) { /* ウインドウの外側部分を表示 */
if (!outside) return (-1);
} else { /* ウインドウの内側部分を表示 */
if (outside) return (-1);
}
}
pixel = WWColorMap_GetLCDColor(WWDisplay_GetColorMap(display), pixel);
WWLCDPanel_SetPixel(WWDisplay_GetLCDPanel(display), lcd_x, lcd_y, pixel);
return (pixel);
}
int WWDisplay_DrawLCDPanel(WWDisplay display)
{
WWLCDPanel lcd_panel;
WWScreen screen;
int x, y, i;
int lcd_panel_width;
int lcd_panel_height;
WWColorMap color_map;
int border;
WWSprite sprite;
int ret;
lcd_panel = WWDisplay_GetLCDPanel(display);
lcd_panel_width = WWLCDPanel_GetWidth( lcd_panel);
lcd_panel_height = WWLCDPanel_GetHeight(lcd_panel);
color_map = WWDisplay_GetColorMap(display);
border = WWDisplay_GetBorder(display);
for (x = 0; x < lcd_panel_width; x++) {
for (y = 0; y < lcd_panel_height; y++) {
/* スクリーン2より優先のスプライトの描画 */
/* 重なった場合は,番号の若いものが手前に表示される */
ret = -1;
if (WWDisplay_GetSpriteEnable(display)) {
for (i = 0; i < WWDisplay_GetSpriteCount(display); i++) {
sprite = WWDisplay_GetSprite(display,
i + WWDisplay_GetSpriteStart(display));
if (WWSprite_GetPriority(sprite)) {
ret = WWDisplay_DrawSprite(display, sprite, x, y);
if (ret != -1) break;
}
}
}
if (ret != -1) continue;
/* スクリーン2の描画 */
ret = WWDisplay_DrawScreen(display, WWDisplay_GetScreen(display, 1),
x, y);
if (ret != -1) continue;
/* スクリーン2より優先でないスプライトの描画 */
/* 重なった場合は,番号の若いものが手前に表示される */
ret = -1;
if (WWDisplay_GetSpriteEnable(display)) {
for (i = 0; i < WWDisplay_GetSpriteCount(display); i++) {
sprite = WWDisplay_GetSprite(display,
i + WWDisplay_GetSpriteStart(display));
if (!WWSprite_GetPriority(sprite)) {
ret = WWDisplay_DrawSprite(display, sprite, x, y);
if (ret != -1) break;
}
}
}
if (ret != -1) continue;
/* スクリーン1の描画 */
ret = WWDisplay_DrawScreen(display, WWDisplay_GetScreen(display, 0),
x, y);
if (ret != -1) continue;
/* ボーダーカラーの描画 */
WWLCDPanel_SetPixel(lcd_panel, x, y,
WWColorMap_GetLCDColor(color_map, border));
}
}
return (0);
}
/*****************************************************************************/
/* ここまで */
/*****************************************************************************/
/*****************************************************************************/
/* End of File. */
/*****************************************************************************/