TinyArcade/DMA転送を使って60FPSで画面表示
をテンプレートにして作成
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開始行:
[[戻る>TinyArcade]]
*画面表示 [#v816832b]
256色モードでDMAを使用して60FPSで10x10のキャラクタを画面...
96x64バイトの画面の大きさと同じscreen_bufferを2つ作成して...
TinyScreen::writeBufferDMAは画面を転送する前に戻って来る...
DMA転送が終わったかどうか毎回チェックしている。~
TinyScreen::writeBufferでは画面描画には256色で約4550マイ...
TinyScreen::writeBufferDMAではその時間を省く事ができる。~
その代わり画面に表示されている画像は1フレーム前の画像にな...
*サンプルプログラム [#j2698228]
#include <TinyScreen.h>
#define COLOR8(r,g,b) ((b>>5)<<5|(g>>5)<<2|(r>>6))
static const unsigned int SCREEN_WIDTH = 96;
static const unsigned int SCREEN_HEIGHT = 64;
static const unsigned int BUFFER_SIZE = (SCREEN_WIDTH * ...
static const unsigned int BUFFER_COUNT = 2;
static const unsigned long FPS = 60;
static const unsigned long INTERVAL_TIME = 1000000 / FPS;
TinyScreen tiny_screen = TinyScreen(TinyScreenPlus);
unsigned char screen_buffer[BUFFER_COUNT][BUFFER_SIZE];
unsigned long micros_time;
int current_buffer;
int x;
int anime_count;
// Character image
const unsigned char Hiyoko_1[10 * 10] =
{
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0x00, 0...
0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0...
0x00, 0x1B, 0xFF, 0x40, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x5B, 0x5B, 0x5B, 0x5B, 0...
0x0F, 0x0F, 0x0F, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0...
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x5B, 0...
0x00, 0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x5B, 0x00, 0...
0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0F, 0x00, 0x00, 0...
0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0F, 0x00, 0x00, 0...
};
const unsigned char Hiyoko_2[10 * 10] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0...
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0x00, 0...
0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x1B, 0x1B, 0x5B, 0x5B, 0...
0x00, 0x1B, 0xFF, 0x40, 0x1B, 0x1B, 0x5B, 0x1B, 0x1B, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x5B, 0x1B, 0x1B, 0x1B, 0...
0x0F, 0x0F, 0x0F, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x5B, 0...
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x5B, 0x00, 0...
0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0F, 0x00, 0x00, 0...
0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x0F, 0x00, 0...
};
void setup()
{
tiny_screen.begin();
tiny_screen.setBitDepth(TSBitDepth8);
tiny_screen.setBrightness(7);
tiny_screen.setFont(liberationSansNarrow_12ptFontInfo);
tiny_screen.fontColor(TS_8b_White, TS_8b_Black);
tiny_screen.initDMA();
current_buffer = 0;
x = 86;
anime_count = 0;
}
// Draw sprite no clip
void DrawSprite(const unsigned char* buffer, int x, int ...
{
int scan_x;
int scan_y;
int source_address = 0;
int destination_address = SCREEN_WIDTH * y + x;
for(scan_y = 0; scan_y < height; ++ scan_y)
{
for(scan_x = 0; scan_x < width; ++ scan_x)
{
unsigned char color = buffer[source_address + scan_x];
if(static_cast<int>(color) != color_key)
{
screen_buffer[current_buffer][destination_address + ...
}
}
source_address += width;
destination_address += SCREEN_WIDTH;
}
}
void loop()
{
unsigned long interval_time = micros() - micros_time;
if(interval_time > INTERVAL_TIME)
{
// Clear buffer
memset(screen_buffer[current_buffer], COLOR8(30, 30, 1...
// Move & draw sprite
-- x;
if(x < 0)
{
x = 86;
}
++ anime_count;
if(anime_count >= 16)
{
anime_count = 0;
}
if(anime_count < 8)
{
DrawSprite(Hiyoko_1, x, 27, 10, 10, 0);
}
else
{
DrawSprite(Hiyoko_2, x, 27, 10, 10, 0);
}
// Wait DMA transfer
while(!tiny_screen.getReadyStatusDMA());
// End transfer
tiny_screen.endTransfer();
// Start DMA transfer
current_buffer = 1 - current_buffer;
tiny_screen.goTo(0, 0);
tiny_screen.setX(0, SCREEN_WIDTH - 1);
tiny_screen.setY(0, SCREEN_HEIGHT - 1);
tiny_screen.startData();
tiny_screen.writeBufferDMA(screen_buffer[current_buffe...
micros_time = micros();
}
}
*実行結果 [#g155f80a]
#ref(ScreenSample4.jpg)
*サンプルプログラムのダウンロード [#w55975f3]
#ref(ScreenSample4.zip)~
終了行:
[[戻る>TinyArcade]]
*画面表示 [#v816832b]
256色モードでDMAを使用して60FPSで10x10のキャラクタを画面...
96x64バイトの画面の大きさと同じscreen_bufferを2つ作成して...
TinyScreen::writeBufferDMAは画面を転送する前に戻って来る...
DMA転送が終わったかどうか毎回チェックしている。~
TinyScreen::writeBufferでは画面描画には256色で約4550マイ...
TinyScreen::writeBufferDMAではその時間を省く事ができる。~
その代わり画面に表示されている画像は1フレーム前の画像にな...
*サンプルプログラム [#j2698228]
#include <TinyScreen.h>
#define COLOR8(r,g,b) ((b>>5)<<5|(g>>5)<<2|(r>>6))
static const unsigned int SCREEN_WIDTH = 96;
static const unsigned int SCREEN_HEIGHT = 64;
static const unsigned int BUFFER_SIZE = (SCREEN_WIDTH * ...
static const unsigned int BUFFER_COUNT = 2;
static const unsigned long FPS = 60;
static const unsigned long INTERVAL_TIME = 1000000 / FPS;
TinyScreen tiny_screen = TinyScreen(TinyScreenPlus);
unsigned char screen_buffer[BUFFER_COUNT][BUFFER_SIZE];
unsigned long micros_time;
int current_buffer;
int x;
int anime_count;
// Character image
const unsigned char Hiyoko_1[10 * 10] =
{
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0x00, 0...
0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0...
0x00, 0x1B, 0xFF, 0x40, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x5B, 0x5B, 0x5B, 0x5B, 0...
0x0F, 0x0F, 0x0F, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0...
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x5B, 0...
0x00, 0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x5B, 0x00, 0...
0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0F, 0x00, 0x00, 0...
0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0F, 0x00, 0x00, 0...
};
const unsigned char Hiyoko_2[10 * 10] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0...
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0x00, 0...
0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x00, 0x00, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x1B, 0x1B, 0x5B, 0x5B, 0...
0x00, 0x1B, 0xFF, 0x40, 0x1B, 0x1B, 0x5B, 0x1B, 0x1B, 0...
0x00, 0x1B, 0x40, 0x40, 0x1B, 0x5B, 0x1B, 0x1B, 0x1B, 0...
0x0F, 0x0F, 0x0F, 0x1B, 0x1B, 0x1B, 0x1B, 0x1B, 0x5B, 0...
0x00, 0x00, 0x00, 0x1B, 0x1B, 0x1B, 0x1B, 0x5B, 0x00, 0...
0x00, 0x00, 0x00, 0x00, 0x0F, 0x00, 0x0F, 0x00, 0x00, 0...
0x00, 0x00, 0x00, 0x0F, 0x00, 0x00, 0x00, 0x0F, 0x00, 0...
};
void setup()
{
tiny_screen.begin();
tiny_screen.setBitDepth(TSBitDepth8);
tiny_screen.setBrightness(7);
tiny_screen.setFont(liberationSansNarrow_12ptFontInfo);
tiny_screen.fontColor(TS_8b_White, TS_8b_Black);
tiny_screen.initDMA();
current_buffer = 0;
x = 86;
anime_count = 0;
}
// Draw sprite no clip
void DrawSprite(const unsigned char* buffer, int x, int ...
{
int scan_x;
int scan_y;
int source_address = 0;
int destination_address = SCREEN_WIDTH * y + x;
for(scan_y = 0; scan_y < height; ++ scan_y)
{
for(scan_x = 0; scan_x < width; ++ scan_x)
{
unsigned char color = buffer[source_address + scan_x];
if(static_cast<int>(color) != color_key)
{
screen_buffer[current_buffer][destination_address + ...
}
}
source_address += width;
destination_address += SCREEN_WIDTH;
}
}
void loop()
{
unsigned long interval_time = micros() - micros_time;
if(interval_time > INTERVAL_TIME)
{
// Clear buffer
memset(screen_buffer[current_buffer], COLOR8(30, 30, 1...
// Move & draw sprite
-- x;
if(x < 0)
{
x = 86;
}
++ anime_count;
if(anime_count >= 16)
{
anime_count = 0;
}
if(anime_count < 8)
{
DrawSprite(Hiyoko_1, x, 27, 10, 10, 0);
}
else
{
DrawSprite(Hiyoko_2, x, 27, 10, 10, 0);
}
// Wait DMA transfer
while(!tiny_screen.getReadyStatusDMA());
// End transfer
tiny_screen.endTransfer();
// Start DMA transfer
current_buffer = 1 - current_buffer;
tiny_screen.goTo(0, 0);
tiny_screen.setX(0, SCREEN_WIDTH - 1);
tiny_screen.setY(0, SCREEN_HEIGHT - 1);
tiny_screen.startData();
tiny_screen.writeBufferDMA(screen_buffer[current_buffe...
micros_time = micros();
}
}
*実行結果 [#g155f80a]
#ref(ScreenSample4.jpg)
*サンプルプログラムのダウンロード [#w55975f3]
#ref(ScreenSample4.zip)~
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