accelerants/nvidia/Overlay.c

75 	int offset = 0;					/* used to determine next buffer to create */
88 	for (offset = 0; offset < MAXBUFFERS; offset++)
90 		if (si->overlay.myBuffer[offset].buffer == NULL) break;
93 	LOG(4, ("Overlay: Allocate_buffer offset = %d\n", offset));
95 	if (offset < MAXBUFFERS)
104 						si->overlay.myBuffer[offset].width = ((width + 0x000f) & ~0x000f);
109 						si->overlay.myBuffer[offset].width = ((width + 0x001f) & ~0x001f);
111 					si->overlay.myBuffer[offset].bytes_per_row = 2 * si->overlay.myBuffer[offset].width;
115 					if (si->overlay.myBuffer[offset].width > 4088)
143 			if (si->overlay.myBuffer[offset].width > 1024) {
163 			if (si->overlay.myBuffer[offset].width > 1920) {
182 		si->overlay.myBufInfo[offset].slopspace = si->overlay.myBuffer[offset].width - width;
184 		si->overlay.myBuffer[offset].space = cs;
185 		si->overlay.myBuffer[offset].height = height;
216 		oldsize = si->overlay.myBufInfo[offset].size;
217 		si->overlay.myBufInfo[offset].size
218 			= si->overlay.myBuffer[offset].bytes_per_row * si->overlay.myBuffer[offset].height;
239 		for (cnt = 0; cnt <= offset; cnt++)
244 		/* the > G200 scalers require buffers to be aligned to 16 byte pages cardRAM offset, G200 can do with
245 		 * 8 byte pages cardRAM offset. Compatible settings used, has no real downside consequences here */
248 		/* calculate 'would be' cardRAM offset */
254 			si->overlay.myBufInfo[offset].size += (temp32 - (temp32 & 0xfffffff0));
273 		for (cnt = offset; cnt < MAXBUFFERS; cnt++)
278 				if (si->overlay.myBufInfo[offset].size <= oldsize)
282 					adress -= (oldsize - si->overlay.myBufInfo[offset].size);
283 					si->overlay.myBufInfo[offset].size = oldsize;
294 					si->overlay.myBufInfo[offset].size = oldsize;
317 		si->overlay.myBuffer[offset].buffer = (void *) adress;
328 		for (cnt = 0; cnt <= offset; cnt++)
333 		si->overlay.myBuffer[offset].buffer_dma = (void *) adress;
336 			(uint8*)si->overlay.myBuffer[offset].buffer,
337 			(uint8*)si->overlay.myBuffer[offset].buffer_dma, cs));
338 		LOG(4, ("Overlay: New buffer's size is $%08x\n", si->overlay.myBufInfo[offset].size));
343 		return &si->overlay.myBuffer[offset];
359 	int offset = 0;
364 		for (offset = 0; offset < MAXBUFFERS; offset++)
366 			if (si->overlay.myBuffer[offset].buffer == ob->buffer) break;
369 		if (offset < MAXBUFFERS)
372 			si->overlay.myBuffer[offset].buffer = NULL;
373 			si->overlay.myBuffer[offset].buffer_dma = NULL;
375 			LOG(4,("Overlay: Release_buffer offset = %d, buffer released\n",offset));
399 	int offset = 0;
411 	for (offset = 0; offset < MAXBUFFERS; offset++)
413 		if (si->overlay.myBuffer[offset].buffer == ob->buffer) break;
416 	if (offset < MAXBUFFERS)
579 	int offset = 0; /* used for buffer index */
624 		/* find the buffer's offset */
625 		for (offset = 0; offset < MAXBUFFERS; offset++)
627 			if (si->overlay.myBuffer[offset].buffer == ob->buffer) break;
630 		if (offset < MAXBUFFERS)
632 			LOG(4,("succesfull, switching to buffer %d\n", offset));
635 			nv_configure_bes(ob, ow, ov, offset);