domain_read.br

用于GPU通用计算的编程语言BrookGPU 0.4

// domain_read.br
// tests that reading from a domain works

#include <stdio.h>

kernel void copy( float input<>, out float output<> )
{
  output = input;
}

int main()
{
	int i, j;
	float a1< 100 >;
	float b1< 50 >;
	float a2< 100, 100 >;
	float b2< 4, 7 >;

	float input_a1[100];
	float output_b1[100];
	float input_a2[100][100];
	float output_b2[4][7];
	
	// initialize data
	for( i = 0; i < 100; i++ )
	{
		input_a1[i] = (float)i;

		for( j = 0; j < 100; j++ )
		{
			input_a2[i][j] = (float)(i*100 + j);
		}
	}
	streamRead( a1, input_a1 );
	streamRead( a2, input_a2 );
	
	copy( a1.domain( 30, 80 ), b1 );
	copy( a2.domain( int2(5,90), int2(12,94) ), b2 );
	
	streamWrite( b1, output_b1 );
	streamWrite( b2, output_b2 );
	
	for( i = 0; i < 10; i++ )
	{
		for( j = 0; j < 5; j++ )
			printf( "%3.2f ", output_b1[5*i+j] );
		printf("\n");
	}
	
	printf("***\n");
	
	for( i = 0; i < 4; i++ )
	{
		for( j = 0; j < 7; j++ )
			printf( "%3.2f ", output_b2[i][j] );
		printf("\n");
	}
	
	return 0;
}