exynos_fimg2d.c revision baaff307
1/*
2 * Copyright (C) 2013 Samsung Electronics Co.Ltd
3 * Authors:
4 *	Inki Dae <inki.dae@samsung.com>
5 *
6 * This program is free software; you can redistribute  it and/or modify it
7 * under  the terms of  the GNU General  Public License as published by the
8 * Free Software Foundation;  either version 2 of the  License, or (at your
9 * option) any later version.
10 *
11 */
12
13#ifdef HAVE_CONFIG_H
14#include "config.h"
15#endif
16
17#include <stdlib.h>
18#include <stdio.h>
19#include <string.h>
20#include <errno.h>
21
22#include <sys/mman.h>
23#include <linux/stddef.h>
24
25#include <xf86drm.h>
26
27#include "libdrm.h"
28#include "exynos_drm.h"
29#include "fimg2d_reg.h"
30#include "fimg2d.h"
31
32#define		SET_BF(val, sc, si, scsa, scda, dc, di, dcsa, dcda) \
33			val.data.src_coeff = sc;		\
34			val.data.inv_src_color_coeff = si;	\
35			val.data.src_coeff_src_a = scsa;	\
36			val.data.src_coeff_dst_a = scda;	\
37			val.data.dst_coeff = dc;		\
38			val.data.inv_dst_color_coeff = di;	\
39			val.data.dst_coeff_src_a = dcsa;	\
40			val.data.dst_coeff_dst_a = dcda;
41
42#define MIN(a, b)	((a) < (b) ? (a) : (b))
43
44static unsigned int g2d_get_blend_op(enum e_g2d_op op)
45{
46	union g2d_blend_func_val val;
47
48	val.val = 0;
49
50	switch (op) {
51	case G2D_OP_CLEAR:
52	case G2D_OP_DISJOINT_CLEAR:
53	case G2D_OP_CONJOINT_CLEAR:
54		SET_BF(val, G2D_COEFF_MODE_ZERO, 0, 0, 0, G2D_COEFF_MODE_ZERO,
55				0, 0, 0);
56		break;
57	case G2D_OP_SRC:
58	case G2D_OP_DISJOINT_SRC:
59	case G2D_OP_CONJOINT_SRC:
60		SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0, G2D_COEFF_MODE_ZERO,
61				0, 0, 0);
62		break;
63	case G2D_OP_DST:
64	case G2D_OP_DISJOINT_DST:
65	case G2D_OP_CONJOINT_DST:
66		SET_BF(val, G2D_COEFF_MODE_ZERO, 0, 0, 0, G2D_COEFF_MODE_ONE,
67				0, 0, 0);
68		break;
69	case G2D_OP_OVER:
70		SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0,
71				G2D_COEFF_MODE_SRC_ALPHA, 1, 0, 0);
72		break;
73	default:
74		fprintf(stderr, "Not support operation(%d).\n", op);
75		SET_BF(val, G2D_COEFF_MODE_ONE, 0, 0, 0, G2D_COEFF_MODE_ZERO,
76				0, 0, 0);
77		break;
78	}
79
80	return val.val;
81}
82
83/*
84 * g2d_add_cmd - set given command and value to user side command buffer.
85 *
86 * @ctx: a pointer to g2d_context structure.
87 * @cmd: command data.
88 * @value: value data.
89 */
90static int g2d_add_cmd(struct g2d_context *ctx, unsigned long cmd,
91			unsigned long value)
92{
93	switch (cmd & ~(G2D_BUF_USERPTR)) {
94	case SRC_BASE_ADDR_REG:
95	case SRC_PLANE2_BASE_ADDR_REG:
96	case DST_BASE_ADDR_REG:
97	case DST_PLANE2_BASE_ADDR_REG:
98	case PAT_BASE_ADDR_REG:
99	case MASK_BASE_ADDR_REG:
100		if (ctx->cmd_buf_nr >= G2D_MAX_GEM_CMD_NR) {
101			fprintf(stderr, "Overflow cmd_gem size.\n");
102			return -EINVAL;
103		}
104
105		ctx->cmd_buf[ctx->cmd_buf_nr].offset = cmd;
106		ctx->cmd_buf[ctx->cmd_buf_nr].data = value;
107		ctx->cmd_buf_nr++;
108		break;
109	default:
110		if (ctx->cmd_nr >= G2D_MAX_CMD_NR) {
111			fprintf(stderr, "Overflow cmd size.\n");
112			return -EINVAL;
113		}
114
115		ctx->cmd[ctx->cmd_nr].offset = cmd;
116		ctx->cmd[ctx->cmd_nr].data = value;
117		ctx->cmd_nr++;
118		break;
119	}
120
121	return TRUE;
122}
123
124/*
125 * g2d_reset - reset fimg2d hardware.
126 *
127 * @ctx: a pointer to g2d_context structure.
128 *
129 */
130static void g2d_reset(struct g2d_context *ctx)
131{
132	ctx->cmd_nr = 0;
133	ctx->cmd_buf_nr = 0;
134
135	g2d_add_cmd(ctx, SOFT_RESET_REG, 0x01);
136}
137
138/*
139 * g2d_flush - summit all commands and values in user side command buffer
140 *		to command queue aware of fimg2d dma.
141 *
142 * @ctx: a pointer to g2d_context structure.
143 *
144 * This function should be called after all commands and values to user
145 * side command buffer is set to summit that buffer to kernel side driver.
146 */
147static int g2d_flush(struct g2d_context *ctx)
148{
149	int ret;
150	struct drm_exynos_g2d_set_cmdlist cmdlist;
151
152	if (ctx->cmd_nr  == 0 && ctx->cmd_buf_nr == 0)
153		return FALSE;
154
155	if (ctx->cmdlist_nr >= G2D_MAX_CMD_LIST_NR) {
156		fprintf(stderr, "Overflow cmdlist.\n");
157		return -EINVAL;
158	}
159
160	memset(&cmdlist, 0, sizeof(struct drm_exynos_g2d_set_cmdlist));
161
162	cmdlist.cmd = (uint64_t)(uintptr_t)&ctx->cmd[0];
163	cmdlist.cmd_buf = (uint64_t)(uintptr_t)&ctx->cmd_buf[0];
164	cmdlist.cmd_nr = ctx->cmd_nr;
165	cmdlist.cmd_buf_nr = ctx->cmd_buf_nr;
166	cmdlist.event_type = G2D_EVENT_NOT;
167	cmdlist.user_data = 0;
168
169	ctx->cmd_nr = 0;
170	ctx->cmd_buf_nr = 0;
171
172	ret = drmIoctl(ctx->fd, DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST, &cmdlist);
173	if (ret < 0) {
174		fprintf(stderr, "failed to set cmdlist.\n");
175		return ret;
176	}
177
178	ctx->cmdlist_nr++;
179
180	return ret;
181}
182
183/**
184 * g2d_init - create a new g2d context and get hardware version.
185 *
186 * fd: a file descriptor to drm device driver opened.
187 */
188drm_public struct g2d_context *g2d_init(int fd)
189{
190	struct drm_exynos_g2d_get_ver ver;
191	struct g2d_context *ctx;
192	int ret;
193
194	ctx = calloc(1, sizeof(*ctx));
195	if (!ctx) {
196		fprintf(stderr, "failed to allocate context.\n");
197		return NULL;
198	}
199
200	ctx->fd = fd;
201
202	ret = drmIoctl(fd, DRM_IOCTL_EXYNOS_G2D_GET_VER, &ver);
203	if (ret < 0) {
204		fprintf(stderr, "failed to get version.\n");
205		free(ctx);
206		return NULL;
207	}
208
209	ctx->major = ver.major;
210	ctx->minor = ver.minor;
211
212	printf("g2d version(%d.%d).\n", ctx->major, ctx->minor);
213	return ctx;
214}
215
216drm_public void g2d_fini(struct g2d_context *ctx)
217{
218	if (ctx)
219		free(ctx);
220}
221
222/**
223 * g2d_exec - start the dma to process all commands summited by g2d_flush().
224 *
225 * @ctx: a pointer to g2d_context structure.
226 */
227drm_public int g2d_exec(struct g2d_context *ctx)
228{
229	struct drm_exynos_g2d_exec exec;
230	int ret;
231
232	if (ctx->cmdlist_nr == 0)
233		return -EINVAL;
234
235	exec.async = 0;
236
237	ret = drmIoctl(ctx->fd, DRM_IOCTL_EXYNOS_G2D_EXEC, &exec);
238	if (ret < 0) {
239		fprintf(stderr, "failed to execute.\n");
240		return ret;
241	}
242
243	ctx->cmdlist_nr = 0;
244
245	return ret;
246}
247
248/**
249 * g2d_solid_fill - fill given buffer with given color data.
250 *
251 * @ctx: a pointer to g2d_context structure.
252 * @img: a pointer to g2d_image structure including image and buffer
253 *	information.
254 * @x: x start position to buffer filled with given color data.
255 * @y: y start position to buffer filled with given color data.
256 * @w: width value to buffer filled with given color data.
257 * @h: height value to buffer filled with given color data.
258 */
259drm_public int
260g2d_solid_fill(struct g2d_context *ctx, struct g2d_image *img,
261			unsigned int x, unsigned int y, unsigned int w,
262			unsigned int h)
263{
264	union g2d_bitblt_cmd_val bitblt;
265	union g2d_point_val pt;
266
267	g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
268	g2d_add_cmd(ctx, DST_COLOR_MODE_REG, img->color_mode);
269
270	if (img->buf_type == G2D_IMGBUF_USERPTR)
271		g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
272				(unsigned long)&img->user_ptr[0]);
273	else
274		g2d_add_cmd(ctx, DST_BASE_ADDR_REG, img->bo[0]);
275
276	g2d_add_cmd(ctx, DST_STRIDE_REG, img->stride);
277
278	if (x + w > img->width)
279		w = img->width - x;
280	if (y + h > img->height)
281		h = img->height - y;
282
283	pt.val = 0;
284	pt.data.x = x;
285	pt.data.y = y;
286	g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
287
288	pt.val = 0;
289	pt.data.x = x + w;
290	pt.data.y = y + h;
291
292	g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
293
294	g2d_add_cmd(ctx, SF_COLOR_REG, img->color);
295
296	bitblt.val = 0;
297	bitblt.data.fast_solid_color_fill_en = 1;
298	g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
299
300	g2d_flush(ctx);
301
302	return 0;
303}
304
305/**
306 * g2d_copy - copy contents in source buffer to destination buffer.
307 *
308 * @ctx: a pointer to g2d_context structure.
309 * @src: a pointer to g2d_image structure including image and buffer
310 *	information to source.
311 * @dst: a pointer to g2d_image structure including image and buffer
312 *	information to destination.
313 * @src_x: x start position to source buffer.
314 * @src_y: y start position to source buffer.
315 * @dst_x: x start position to destination buffer.
316 * @dst_y: y start position to destination buffer.
317 * @w: width value to source and destination buffers.
318 * @h: height value to source and destination buffers.
319 */
320drm_public int
321g2d_copy(struct g2d_context *ctx, struct g2d_image *src,
322		struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
323		unsigned int dst_x, unsigned dst_y, unsigned int w,
324		unsigned int h)
325{
326	union g2d_rop4_val rop4;
327	union g2d_point_val pt;
328	unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
329
330	g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
331	g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
332	if (dst->buf_type == G2D_IMGBUF_USERPTR)
333		g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
334				(unsigned long)&dst->user_ptr[0]);
335	else
336		g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
337
338	g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
339
340	g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
341	g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
342	if (src->buf_type == G2D_IMGBUF_USERPTR)
343		g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
344				(unsigned long)&src->user_ptr[0]);
345	else
346		g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
347
348	g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
349
350	src_w = w;
351	src_h = h;
352	if (src_x + src->width > w)
353		src_w = src->width - src_x;
354	if (src_y + src->height > h)
355		src_h = src->height - src_y;
356
357	dst_w = w;
358	dst_h = w;
359	if (dst_x + dst->width > w)
360		dst_w = dst->width - dst_x;
361	if (dst_y + dst->height > h)
362		dst_h = dst->height - dst_y;
363
364	w = MIN(src_w, dst_w);
365	h = MIN(src_h, dst_h);
366
367	if (w <= 0 || h <= 0) {
368		fprintf(stderr, "invalid width or height.\n");
369		g2d_reset(ctx);
370		return -EINVAL;
371	}
372
373	pt.val = 0;
374	pt.data.x = src_x;
375	pt.data.y = src_y;
376	g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
377	pt.val = 0;
378	pt.data.x = src_x + w;
379	pt.data.y = src_y + h;
380	g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
381
382	pt.val = 0;
383	pt.data.x = dst_x;
384	pt.data.y = dst_y;
385	g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
386	pt.val = 0;
387	pt.data.x = dst_x + w;
388	pt.data.y = dst_y + h;
389	g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
390
391	rop4.val = 0;
392	rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
393	g2d_add_cmd(ctx, ROP4_REG, rop4.val);
394
395	g2d_flush(ctx);
396
397	return 0;
398}
399
400/**
401 * g2d_copy_with_scale - copy contents in source buffer to destination buffer
402 *	scaling up or down properly.
403 *
404 * @ctx: a pointer to g2d_context structure.
405 * @src: a pointer to g2d_image structure including image and buffer
406 *	information to source.
407 * @dst: a pointer to g2d_image structure including image and buffer
408 *	information to destination.
409 * @src_x: x start position to source buffer.
410 * @src_y: y start position to source buffer.
411 * @src_w: width value to source buffer.
412 * @src_h: height value to source buffer.
413 * @dst_x: x start position to destination buffer.
414 * @dst_y: y start position to destination buffer.
415 * @dst_w: width value to destination buffer.
416 * @dst_h: height value to destination buffer.
417 * @negative: indicate that it uses color negative to source and
418 *	destination buffers.
419 */
420drm_public int
421g2d_copy_with_scale(struct g2d_context *ctx, struct g2d_image *src,
422				struct g2d_image *dst, unsigned int src_x,
423				unsigned int src_y, unsigned int src_w,
424				unsigned int src_h, unsigned int dst_x,
425				unsigned int dst_y, unsigned int dst_w,
426				unsigned int dst_h, unsigned int negative)
427{
428	union g2d_rop4_val rop4;
429	union g2d_point_val pt;
430	unsigned int scale;
431	double scale_x = 0.0f, scale_y = 0.0f;
432
433	g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
434	g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
435	if (dst->buf_type == G2D_IMGBUF_USERPTR)
436		g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
437				(unsigned long)&dst->user_ptr[0]);
438	else
439		g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
440
441	g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
442
443	g2d_add_cmd(ctx, SRC_SELECT_REG, G2D_SELECT_MODE_NORMAL);
444	g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
445	if (src->buf_type == G2D_IMGBUF_USERPTR)
446		g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
447				(unsigned long)&src->user_ptr[0]);
448	else
449		g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
450
451	g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
452
453	if (src_w == dst_w && src_h == dst_h)
454		scale = 0;
455	else {
456		scale = 1;
457		scale_x = (double)src_w / (double)dst_w;
458		scale_y = (double)src_h / (double)dst_h;
459	}
460
461	if (src_x + src_w > src->width)
462		src_w = src->width - src_x;
463	if (src_y + src_h > src->height)
464		src_h = src->height - src_y;
465
466	if (dst_x + dst_w > dst->width)
467		dst_w = dst->width - dst_x;
468	if (dst_y + dst_h > dst->height)
469		dst_h = dst->height - dst_y;
470
471	if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
472		fprintf(stderr, "invalid width or height.\n");
473		g2d_reset(ctx);
474		return -EINVAL;
475	}
476
477	if (negative) {
478		g2d_add_cmd(ctx, BG_COLOR_REG, 0x00FFFFFF);
479		rop4.val = 0;
480		rop4.data.unmasked_rop3 = G2D_ROP3_SRC^G2D_ROP3_DST;
481		g2d_add_cmd(ctx, ROP4_REG, rop4.val);
482	} else {
483		rop4.val = 0;
484		rop4.data.unmasked_rop3 = G2D_ROP3_SRC;
485		g2d_add_cmd(ctx, ROP4_REG, rop4.val);
486	}
487
488	if (scale) {
489		g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
490		g2d_add_cmd(ctx, SRC_XSCALE_REG, G2D_DOUBLE_TO_FIXED(scale_x));
491		g2d_add_cmd(ctx, SRC_YSCALE_REG, G2D_DOUBLE_TO_FIXED(scale_y));
492	}
493
494	pt.val = 0;
495	pt.data.x = src_x;
496	pt.data.y = src_y;
497	g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
498	pt.val = 0;
499	pt.data.x = src_x + src_w;
500	pt.data.y = src_y + src_h;
501	g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
502
503	pt.val = 0;
504	pt.data.x = dst_x;
505	pt.data.y = dst_y;
506	g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
507	pt.val = 0;
508	pt.data.x = dst_x + dst_w;
509	pt.data.y = dst_y + dst_h;
510	g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
511
512	g2d_flush(ctx);
513
514	return 0;
515}
516
517/**
518 * g2d_blend - blend image data in source and destion buffers
519 *
520 * @ctx: a pointer to g2d_context structure.
521 * @src: a pointer to g2d_image structure including image and buffer
522 *	information to source.
523 * @dst: a pointer to g2d_image structure including image and buffer
524 *	information to destination.
525 * @src_x: x start position to source buffer.
526 * @src_y: y start position to source buffer.
527 * @dst_x: x start position to destination buffer.
528 * @dst_y: y start position to destination buffer.
529 * @w: width value to source and destination buffer.
530 * @h: height value to source and destination buffer.
531 * @op: blend operation type.
532 */
533drm_public int
534g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
535		struct g2d_image *dst, unsigned int src_x,
536		unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
537		unsigned int w, unsigned int h, enum e_g2d_op op)
538{
539	union g2d_point_val pt;
540	union g2d_bitblt_cmd_val bitblt;
541	union g2d_blend_func_val blend;
542	unsigned int src_w = 0, src_h = 0, dst_w = 0, dst_h = 0;
543
544	bitblt.val = 0;
545	blend.val = 0;
546
547	if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
548		g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
549	else
550		g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
551
552	g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
553	if (dst->buf_type == G2D_IMGBUF_USERPTR)
554		g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
555				(unsigned long)&dst->user_ptr[0]);
556	else
557		g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
558
559	g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
560
561	g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
562	g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
563
564	switch (src->select_mode) {
565	case G2D_SELECT_MODE_NORMAL:
566		if (src->buf_type == G2D_IMGBUF_USERPTR)
567			g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
568					(unsigned long)&src->user_ptr[0]);
569		else
570			g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
571
572		g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
573		break;
574	case G2D_SELECT_MODE_FGCOLOR:
575		g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
576		break;
577	case G2D_SELECT_MODE_BGCOLOR:
578		g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
579		break;
580	default:
581		fprintf(stderr , "failed to set src.\n");
582		return -EINVAL;
583	}
584
585	src_w = w;
586	src_h = h;
587	if (src_x + w > src->width)
588		src_w = src->width - src_x;
589	if (src_y + h > src->height)
590		src_h = src->height - src_y;
591
592	dst_w = w;
593	dst_h = h;
594	if (dst_x + w > dst->width)
595		dst_w = dst->width - dst_x;
596	if (dst_y + h > dst->height)
597		dst_h = dst->height - dst_y;
598
599	w = MIN(src_w, dst_w);
600	h = MIN(src_h, dst_h);
601
602	if (w <= 0 || h <= 0) {
603		fprintf(stderr, "invalid width or height.\n");
604		g2d_reset(ctx);
605		return -EINVAL;
606	}
607
608	bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
609	blend.val = g2d_get_blend_op(op);
610	g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
611	g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
612
613	pt.val = 0;
614	pt.data.x = src_x;
615	pt.data.y = src_y;
616	g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
617	pt.val = 0;
618	pt.data.x = src_x + w;
619	pt.data.y = src_y + h;
620	g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
621
622	pt.val = 0;
623	pt.data.x = dst_x;
624	pt.data.y = dst_y;
625	g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
626	pt.val = 0;
627	pt.data.x = dst_x + w;
628	pt.data.y = dst_y + h;
629	g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
630
631	g2d_flush(ctx);
632
633	return 0;
634}
635
636