/*
* Class: com_sun_media_protocol_sunvideo_XILCapture
* Method: xilGetLineStride
* Signature: ()I
*/
JNIEXPORT jint JNICALL
Java_com_sun_media_protocol_sunvideo_XILCapture_xilGetLineStride(JNIEnv *env,
jobject jxil)
{
int w;
InstanceState *inst = (InstanceState *) GetLongField(env, jxil, "peer");
if (inst == NULL)
return -1;
if (!inst->started || (inst->do_cis != RAW)) {
/* Debug Message */
PRINT("XILCapture xilLineStride() not started \n");
/* return a guess at what it will be */
return (jint) (inst->inWidth * 3);
}
/* Debug Message*/
PRINT("In xilGetLineStride\n");
if (inst->firstRawRead) {
XilMemoryStorage storage;
int stride = 0;
xil_export(inst->colored_image);
xil_get_memory_storage(inst->colored_image, &storage);
stride = storage.byte.scanline_stride;
xil_import(inst->colored_image, 0);
/* Debug Message */
PRINT("XILCapture xilLineStride() no read done \n");
return (jint) stride;
}
return (jint) inst->inStrideX;
}
void ResetXILFrameBuffers( void )
{
XilMemoryStorage storage_info;
if( (xil_state = xil_open()) == NULL ) {
Sys_Error( "can't start XIL\n" );
}
create_xil_window();
draw_image = xil_create( xil_state, vid.width, vid.height, 1, XIL_BYTE );
xil_export( draw_image );
xil_get_memory_storage( draw_image, &storage_info );
vid.buffer = (byte *)storage_info.byte.data;
vid.rowbytes = vid.width;
/*
* If the window is 24-bit, then create an intermediate image that
* is used to convert from 8-bit indexed colour to 24-bit true colour.
*/
if( use_truecolour ) {
static unsigned char tmp_palette[ 256 * 4 ];
tmp8to24_image = xil_create( xil_state, vid.width, vid.height, 3, XIL_BYTE );
xil_8to24_lookup = xil_lookup_create( xil_state, XIL_BYTE, XIL_BYTE, 3, 256,
0, tmp_palette );
}
}
static int
readRaw(InstanceState *inst, void *buf, int len)
{
XilImage image;
XilMemoryStorage storage;
int clen;
/* Debug Message */
/* PRINT("In readRaw\n"); */
if (inst == NULL) {
return -1;
}
if (inst->scaled_image) {
xil_scale(inst->rtvc_image, inst->scaled_image, "nearest",
inst->sx, inst->sy);
image = inst->scaled_image;
} else {
image = inst->rtvc_image;
}
xil_color_convert(image, inst->colored_image);
xil_toss(image);
xil_export(inst->colored_image);
xil_get_memory_storage(inst->colored_image, &storage);
inst->inStrideX = storage.byte.scanline_stride;
clen = storage.byte.scanline_stride * inst->outHeight;
if (clen > len) {
/* Debug Message */
PRINT("readRaw: buffer too short\n");
clen = -1;
} else {
memcpy(buf, (void *)storage.byte.data, clen);
}
xil_import(inst->colored_image, 0);
xil_toss(inst->colored_image);
return clen;
}
