示例#1
0
void B2dPlay::DrawHill(b2Vec2 start,b2Vec2 end,float stepWidth,int width,int peak){
	int steps = width/stepWidth;
	float sideStepCount = steps/2;
	float inclinePerStep = peak/(sideStepCount);
	float innerHeight = peak/sideStepCount;
	b2Vec2 vertices[4];
	b2Vec2  startPos = start;
	for(int i = 1;i<= steps;i++){
		if(i>steps/2){
			GetVertsInclineSquare(vertices,stepWidth,innerHeight,(-1*inclinePerStep));
			GenSquare(vertices,world,startPos);
			startPos.x += vertices[1].x+(vertices[1].x);
			startPos.y +=-(((inclinePerStep/2)));
		}else{
			GetVertsInclineSquare(vertices,stepWidth,innerHeight,inclinePerStep);
			GenSquare(vertices,world,startPos);
			startPos.x += vertices[2].x+(vertices[2].x);
			startPos.y +=(inclinePerStep/2);
		}
	}
}
示例#2
0
文件: ac97_demo.c 项目: Angurboda/ABP
int main() {
	init_platform();

	static XGpio pshBtns;
	static XIntc intCtrl;

	Xuint32 Sample_L;
	Xuint32 Sample_R;

	pAudioData = (DDR2_BASEADDR + 0x02000000);
    pFFTData  = (pAudioData + lNumSamples);

	lBtnStateOld = 0x00000000;
	fsRunAction = 0;

	/*
	 *Initialize the driver structs for the Push button and interrupt cores.
	 *This allows the API functions to be used with these cores.
	 */
	XGpio_Initialize(&pshBtns, BTNS_DEVICE_ID);
	XIntc_Initialize(&intCtrl, INTC_DEVICE_ID);

	/*
	 * Connect the function PushBtnHandler to the interrupt controller so that
	 * it is called whenever the Push button GPIO core signals an interrupt.
	 */
	XIntc_Connect(&intCtrl, BTNS_IRPT_ID, PushBtnHandler, &pshBtns);

	/*
	 * Enable interrupts at the interrupt controller
	 */
	XIntc_Enable(&intCtrl, BTNS_IRPT_ID);

	/*
	 * Register the interrupt controller with the microblaze
	 * processor and then start the Interrupt controller so that it begins
	 * listening to the interrupt core for triggers.
	 */
	microblaze_register_handler(XIntc_DeviceInterruptHandler, INTC_DEVICE_ID);
	microblaze_enable_interrupts();
	XIntc_Start(&intCtrl, XIN_REAL_MODE);

	/*
	 * Enable the push button GPIO core to begin sending interrupts to the
	 * interrupt controller in response to changes in the button states
	 */
	XGpio_InterruptEnable(&pshBtns, lBtnChannel);
	XGpio_InterruptGlobalEnable(&pshBtns);

	/*
	 * Wait for AC97 to become ready
	 */
	while (!(AC97_Link_Is_Ready(AC97_BASEADDR)))
		;

	/*
	 * Set TAG to configure codec
	 */
	AC97_Set_Tag_And_Id(AC97_BASEADDR, 0xF800);

	/*
	 * Enable audio output and set volume
	 */
	AC97_Unmute(AC97_BASEADDR, AC97_MASTER_VOLUME_OFFSET);
	AC97_Unmute(AC97_BASEADDR, AC97_HEADPHONE_VOLUME_OFFSET);
	AC97_Unmute(AC97_BASEADDR, AC97_PCM_OUT_VOLUME_OFFSET);

	AC97_Set_Volume(AC97_BASEADDR, AC97_MASTER_VOLUME_OFFSET, BOTH_CHANNELS,
			VOLUME_MAX);
	AC97_Set_Volume(AC97_BASEADDR, AC97_HEADPHONE_VOLUME_OFFSET, BOTH_CHANNELS,
			VOLUME_MIN);
	AC97_Set_Volume(AC97_BASEADDR, AC97_PCM_OUT_VOLUME_OFFSET, BOTH_CHANNELS,
			VOLUME_MAX);

	while (1) {
		/**************************
		 * Play recorded sample
		 **************************/
		if (sampleMax != 0) {
			if (fsRunAction & bitPlay) {
				/*
				 * Set AC'97 codec TAG to send and receive data in the PCM slots
				 */
				AC97_Set_Tag_And_Id(AC97_BASEADDR, 0x9800);

				Count_Samples = 0;

				// Xil_Out32(LED_BASEADDR, bitPlayLED); //turn on LED
				int showLED = 0;
				while ((Count_Samples / 8) < lNumSamples) {
					/*
					 * Block execution until next frame is ready
					 */
					AC97_Wait_For_New_Frame(AC97_BASEADDR);

					/*
					 * Read audio data from memory
					 */
					Sample_L = XIo_In32 (pAudioData + Count_Samples);
					Count_Samples = Count_Samples + 4;
					Sample_R = XIo_In32 (pAudioData + Count_Samples);
					Count_Samples = Count_Samples + 4;

					/* our code */
					/* if(Count_Samples < 100) {  */
					//	printf("Left: %i",(int)Sample_L);
					//	printf("Right: %i",(int)Sample_R);
					/* } */
					if (showLED % 4000 == 0) {
						/*						middleLeft /= 8000;
						 middleRight /= 8000; */
						// Xil_Out32(LED_BASEADDR, Sample_L & AC97_META_MASK);
						// printf("Left: %d",(int)Sample_L);
						// printf("Right: %d",(int)Sample_R);
						setVolumeLEDs(Sample_L & AC97_DATA_MASK,
								Sample_R & AC97_DATA_MASK);
						/*						middleLeft = 0;
						 middleRight = 0;
						 } else {
						 middleLeft += Sample_L;
						 middleRight += Sample_R; */
					}

					/*
					 * Send audio data to codec
					 */XIo_Out32 ((AC97_BASEADDR + AC97_PCM_OUT_L_OFFSET), Sample_L);
					XIo_Out32 ((AC97_BASEADDR + AC97_PCM_OUT_R_OFFSET), Sample_R);
					showLED++;
				}

				Xil_Out32(LED_BASEADDR, 0); //Turn off LED
				fsRunAction = 0; //Forget any button presses that occurred
			}
		}
		/**************************
		 * Output a square wave
		 **************************/
		if (fsRunAction & bitGenWave) {
			//generate square on left, right and then both channels
			GenSquare(AC97_BASEADDR, LEFT_CHANNEL, 1000, 500);
			GenSquare(AC97_BASEADDR, RIGHT_CHANNEL, 1000, 500);
			GenSquare(AC97_BASEADDR, BOTH_CHANNELS, 1000, 500);
			fsRunAction = 0;
		}
		/**************************
		 * LEDTest
		 **************************/
		if (fsRunAction & bitLEDTest) {
			/*	Xil_Out32(LED_BASEADDR, volumeLED0);
			 sleepTimer(1000);
			 Xil_Out32(LED_BASEADDR, volumeLED1);
			 sleepTimer(1000);
			 Xil_Out32(LED_BASEADDR, volumeLED2);
			 sleepTimer(1000);
			 Xil_Out32(LED_BASEADDR, volumeLED3);
			 sleepTimer(1000);
			 Xil_Out32(LED_BASEADDR, volumeLED4);
			 sleepTimer(5000);
			 Xil_Out32(LED_BASEADDR, volumeLED5);
			 sleepTimer(5000);
			 Xil_Out32(LED_BASEADDR, volumeLED6);
			 sleepTimer(5000);
			 Xil_Out32(LED_BASEADDR, volumeLED7);
			 sleepTimer(5000);
			 Xil_Out32(LED_BASEADDR, 0);
			 Xil_Out32(LED_BASEADDR, allLEDs);
			 sleepTimer(5000);
			 Xil_Out32(LED_BASEADDR, 0);
			 fsRunAction = 0;*/
			Xil_Out32(LED_BASEADDR, volumeLED7);
		  	fftSample(pAudioData, lNumSamples, 0);
			Xil_Out32(LED_BASEADDR, 0);
//			fftSample(pFFTData, pAudioData, lNumSamples, 1);
//			addOriginMeta();
//			if (compareValues(pAudioData, pFFTData)) {
//				Xil_Out32(LED_BASEADDR, allLEDs);
//				sleepTimer(5000);
//				Xil_Out32(LED_BASEADDR, 0);
//				Xil_Out32(LED_BASEADDR, allLEDs);
//				sleepTimer(5000);
//				Xil_Out32(LED_BASEADDR, 0);
//			} else {
//				Xil_Out32(LED_BASEADDR, volumeLED0);
//				sleepTimer(1000);
//				Xil_Out32(LED_BASEADDR, volumeLED1);
//				sleepTimer(1000);
//				Xil_Out32(LED_BASEADDR, volumeLED2);
//				sleepTimer(1000);
//				Xil_Out32(LED_BASEADDR, volumeLED3);
//				sleepTimer(1000);
//				Xil_Out32(LED_BASEADDR, volumeLED4);
//			}
			fsRunAction = 0;

		}
		/**************************
		 * Record audio from input
		 **************************/
		if (fsRunAction & bitRec) {
			AC97_Set_Tag_And_Id(AC97_BASEADDR, 0xF800); //Set to configure

			/*
			 * Select input source, enable it, and then set the volume
			 */
			if (Xil_In32(SW_BASEADDR) & bitSw0) {
				AC97_Select_Input(AC97_BASEADDR, BOTH_CHANNELS,
						AC97_LINE_IN_SELECT);
				AC97_Unmute(AC97_BASEADDR, AC97_LINE_IN_VOLUME_OFFSET);
				AC97_Set_Volume(AC97_BASEADDR, AC97_LINE_IN_VOLUME_OFFSET,
						BOTH_CHANNELS, VOLUME_MAX);
			} else {
				AC97_Select_Input(AC97_BASEADDR, BOTH_CHANNELS, AC97_MIC_SELECT);
				AC97_Unmute(AC97_BASEADDR, AC97_MIC_VOLUME_OFFSET);
				AC97_Set_Volume(AC97_BASEADDR, AC97_MIC_VOLUME_OFFSET,
						BOTH_CHANNELS, VOLUME_MID);
			}
			//set record gain
			AC97_Set_Volume(AC97_BASEADDR, AC97_RECORD_GAIN_OFFSET,
					BOTH_CHANNELS, 0x00);

			AC97_Set_Tag_And_Id(AC97_BASEADDR, 0x9800); //Set to Send/Receive data

			Count_Samples = 0;

			Xil_Out32(LED_BASEADDR, bitRecLED); //Turn on LED

			middle = 0;
			sampleMax = MIN_UINT;
			countSamples = 0;
			sampleMin = MAX_UINT;
			while ((Count_Samples / 8) < lNumSamples) {
				AC97_Wait_For_New_Frame(AC97_BASEADDR);

				/*
				 * Read audio data from codec
				 */
				Sample_L = XIo_In32(AC97_BASEADDR + AC97_PCM_IN_L_OFFSET);
				Sample_R = XIo_In32(AC97_BASEADDR + AC97_PCM_IN_R_OFFSET);

				/*
				 * our code
				 */
				captureSampleReference(Sample_L & AC97_DATA_MASK,
						Sample_R & AC97_DATA_MASK);

				/*
				 * Write audio data to memory
				 */

				XIo_Out32 (pAudioData + Count_Samples, Sample_L);
				Count_Samples = Count_Samples + 4;
				XIo_Out32 (pAudioData + Count_Samples, Sample_R);
				Count_Samples = Count_Samples + 4;
			}

			//Set Tag and ID to configure the codec
			AC97_Set_Tag_And_Id(AC97_BASEADDR, 0xF800);

			/*
			 * Disable the input source
			 */
			if (Xil_In32(SW_BASEADDR) & bitSw0) {
				AC97_Mute(AC97_BASEADDR, AC97_LINE_IN_VOLUME_OFFSET);
			} else {
				AC97_Mute(AC97_BASEADDR, AC97_MIC_VOLUME_OFFSET);
			}
			middle = middle / countSamples;
			Xil_Out32(LED_BASEADDR, 0); //Turn off LED
			fsRunAction = 0;
		}

	}

	cleanup_platform();

	return 0;
}