static void set_gmem_copy_quad(struct gmem_shadow_t *shadow)
{
/* set vertex buffer values */
gmem_copy_quad[1] = uint2float(shadow->height);
gmem_copy_quad[3] = uint2float(shadow->width);
gmem_copy_quad[4] = uint2float(shadow->height);
gmem_copy_quad[9] = uint2float(shadow->width);
gmem_copy_quad[0] = 0;
gmem_copy_quad[6] = 0;
gmem_copy_quad[7] = 0;
gmem_copy_quad[10] = 0;
memcpy(shadow->quad_vertices.hostptr, gmem_copy_quad, QUAD_LEN << 2);
memcpy(shadow->quad_texcoords.hostptr, gmem_copy_texcoord,
TEXCOORD_LEN << 2);
}
/* This routine will be called by the PortAudio engine when audio is needed.
** It may called at interrupt level on some machines so don't do anything
** that could mess up the system like calling malloc() or free().
*/
static int patestCallback( const void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
const PaStreamCallbackTimeInfo* timeInfo,
PaStreamCallbackFlags statusFlags,
void *userData)
{
//paTestData *data = (paTestData*)userData;
struct wav_file *waveData = (struct wav_file*)userData;
float *out = (float*)outputBuffer;
unsigned long k;
(void) timeInfo; /* Prevent unused variable warnings. */
(void) statusFlags;
(void) inputBuffer;
unsigned int tempLeft = 0;
unsigned int tempRight = 0;
unsigned long int j = 0;
for( k=0; k<framesPerBuffer; k++ )
{
j = waveData->playProgress;
if((j + 7) < waveData->subChunk3Size)
{
tempLeft = waveData->data[j+0] | waveData->data[j+1]<<8 | waveData->data[j+2]<<16 | waveData->data[j+3]<<24;
tempRight = waveData->data[j+4] | waveData->data[j+5]<<8 | waveData->data[j+6]<<16 | waveData->data[j+7]<<24;
*out++ = uint2float(tempLeft);
*out++ = uint2float(tempRight);
waveData->playProgress += 8;
}
else
{
*out++ = 0.0;
*out++ = 0.0;
}
}
return paContinue;
}
static void set_gmem_copy_quad(struct gmem_shadow_t *shadow)
{
gmem_copy_quad[1] = uint2float(shadow->height);
gmem_copy_quad[3] = uint2float(shadow->width);
gmem_copy_quad[4] = uint2float(shadow->height);
gmem_copy_quad[9] = uint2float(shadow->width);
gmem_restore_quad[5] = uint2float(shadow->height);
gmem_restore_quad[7] = uint2float(shadow->width);
memcpy(shadow->quad_vertices.hostptr, gmem_copy_quad, QUAD_LEN << 2);
memcpy(shadow->quad_vertices_restore.hostptr, gmem_restore_quad,
QUAD_RESTORE_LEN << 2);
memcpy(shadow->quad_texcoords.hostptr, gmem_copy_texcoord,
TEXCOORD_LEN << 2);
}