/*
* Copyright (C) 2013 Samsung Electronics Co.Ltd
* Authors:
* Inki Dae <inki.dae@samsung.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <unistd.h>
#include <sys/mman.h>
#include <linux/stddef.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <libkms.h>
#include <drm_fourcc.h>
#include "exynos_drm.h"
#include "exynos_drmif.h"
#include "exynos_fimg2d.h"
#define DRM_MODULE_NAME "exynos"
static unsigned int screen_width, screen_height;
struct connector {
uint32_t id;
char mode_str[64];
drmModeModeInfo *mode;
drmModeEncoder *encoder;
int crtc;
};
static void connector_find_mode(int fd, struct connector *c,
drmModeRes *resources)
{
drmModeConnector *connector;
int i, j;
/* First, find the connector & mode */
c->mode = NULL;
for (i = 0; i < resources->count_connectors; i++) {
connector = drmModeGetConnector(fd, resources->connectors[i]);
if (!connector) {
fprintf(stderr, "could not get connector %i: %s\n",
resources->connectors[i], strerror(errno));
continue;
}
if (!connector->count_modes) {
drmModeFreeConnector(connector);
continue;
}
if (connector->connector_id != c->id) {
drmModeFreeConnector(connector);
continue;
}
for (j = 0; j < connector->count_modes; j++) {
c->mode = &connector->modes[j];
if (!strcmp(c->mode->name, c->mode_str))
break;
}
/* Found it, break out */
if (c->mode)
break;
drmModeFreeConnector(connector);
}
if (!c->mode) {
fprintf(stderr, "failed to find mode \"%s\"\n", c->mode_str);
return;
}
/* Now get the encoder */
for (i = 0; i < resources->count_encoders; i++) {
c->encoder = drmModeGetEncoder(fd, resources->encoders[i]);
if (!c->encoder) {
fprintf(stderr, "could not get encoder %i: %s\n",
resources->encoders[i], strerror(errno));
continue;
}
if (c->encoder->encoder_id == connector->encoder_id)
break;
drmModeFreeEncoder(c->encoder);
}
if (c->crtc == -1)
c->crtc = c->encoder->crtc_id;
}
static int drm_set_crtc(struct exynos_device *dev, struct connector *c,
unsigned int fb_id)
{
int ret;
ret = drmModeSetCrtc(dev->fd, c->crtc,
fb_id, 0, 0, &c->id, 1, c->mode);
if (ret)
drmMsg("failed to set mode: %s\n", strerror(errno));
return ret;
}
static struct exynos_bo *exynos_create_buffer(struct exynos_device *dev,
unsigned long size,
unsigned int flags)
{
struct exynos_bo *bo;
bo = exynos_bo_create(dev, size, flags);
if (!bo)
return bo;
if (!exynos_bo_map(bo)) {
exynos_bo_destroy(bo);
return NULL;
}
return bo;
}
/* Allocate buffer and fill it with checkerboard pattern, where the tiles *
* have a random color. The caller has to free the buffer. */
static void *create_checkerboard_pattern(unsigned int num_tiles_x,
unsigned int num_tiles_y, unsigned int tile_size)
{
unsigned int *buf;
unsigned int x, y, i, j;
const unsigned int stride = num_tiles_x * tile_size;
if (posix_memalign((void*)&buf, 64, num_tiles_y * tile_size * stride * 4) != 0)
return NULL;
for (x = 0; x < num_tiles_x; ++x) {
for (y = 0; y < num_tiles_y; ++y) {
const unsigned int color = 0xff000000 + (random() & 0xffffff);
for (i = 0; i < tile_size; ++i) {
for (j = 0; j < tile_size; ++j) {
buf[x * tile_size + y * stride * tile_size + i + j * stride] = color;
}
}
}
}
return buf;
}
static void exynos_destroy_buffer(struct exynos_bo *bo)
{
exynos_bo_destroy(bo);
}
static void wait_for_user_input(int last)
{
printf("press <ENTER> to %s\n", last ? "exit test application" :
"skip to next test");
getchar();
}
static int g2d_solid_fill_test(struct exynos_device *dev, struct exynos_bo *dst)
{
struct g2d_context *ctx;
struct g2d_image img = {0};
unsigned int count, img_w, img_h;
int ret = 0;
ctx = g2d_init(dev->fd);
if (!ctx)
return -EFAULT;
img.bo[0] = dst->handle;
printf("solid fill test.\n");
srand(time(NULL));
img_w = screen_width;
img_h = screen_height;
for (count = 0; count < 2; count++) {
unsigned int x, y, w, h;
x = rand() % (img_w / 2);
y = rand() % (img_h / 2);
w = rand() % (img_w - x);
h = rand() % (img_h - y);
img.width = img_w;
img.height = img_h;
img.stride = img.width * 4;
img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
img.color = 0xff000000 + (random() & 0xffffff);
ret = g2d_solid_fill(ctx, &img, x, y, w, h);
if (ret < 0)
goto err_fini;
ret = g2d_exec(ctx);
if (ret < 0)
break;
}
err_fini:
g2d_fini(ctx);
return ret;
}
static int g2d_copy_test(struct exynos_device *dev, struct exynos_bo *src,
struct exynos_bo *dst,
enum e_g2d_buf_type type)
{
struct g2d_context *ctx;
struct g2d_image src_img = {0}, dst_img = {0};
unsigned int src_x, src_y, dst_x, dst_y, img_w, img_h;
unsigned long userptr, size;
int ret;
ctx = g2d_init(dev->fd);
if (!ctx)
return -EFAULT;
dst_img.bo[0] = dst->handle;
src_x = 0;
src_y = 0;
dst_x = 0;
dst_y = 0;
img_w = screen_width;
img_h = screen_height;
switch (type) {
case G2D_IMGBUF_GEM:
src_img.bo[0] = src->handle;
break;
case G2D_IMGBUF_USERPTR:
size = img_w * img_h * 4;
userptr = (unsigned long)malloc(size);
if (!userptr) {
fprintf(stderr, "failed to allocate userptr.\n");
ret = -EFAULT;
goto fail;
}
src_img.user_ptr[0].userptr = userptr;
src_img.user_ptr[0].size = size;
break;
case G2D_IMGBUF_COLOR:
default:
ret = -EFAULT;
goto fail;
}
printf("copy test with %s.\n",
type == G2D_IMGBUF_GEM ? "gem" : "userptr");
src_img.width = img_w;
src_img.height = img_h;
src_img.stride = src_img.width * 4;
src_img.buf_type = type;
src_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
src_img.color = 0xffff0000;
ret = g2d_solid_fill(ctx, &src_img, src_x, src_y, img_w, img_h);
if (ret < 0)
goto err_free_userptr;
dst_img.width = img_w;
dst_img.height = img_h;
dst_img.stride = dst_img.width * 4;
dst_img.buf_type = G2D_IMGBUF_GEM;
dst_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
ret = g2d_copy(ctx, &src_img, &dst_img, src_x, src_y, dst_x, dst_y,
img_w - 4, img_h - 4);
if (ret < 0)
goto err_free_userptr;
g2d_exec(ctx);
err_free_userptr:
if (type == G2D_IMGBUF_USERPTR)
if (userptr)
free((void *)userptr);
fail:
g2d_fini(ctx);
return ret;
}
static int g2d_move_test(struct exynos_device *dev,
struct exynos_bo *tmp,
struct exynos_bo *buf,
enum e_g2d_buf_type type)
{
struct g2d_context *ctx;
struct g2d_image img = {0}, tmp_img = {0};
unsigned int img_w, img_h, count;
int cur_x, cur_y;
void *checkerboard;
int ret;
static const struct g2d_step {
int x, y;
} steps[] = {
{ 1, 0}, { 0, 1},
{-1, 0}, { 0, -1},
{ 1, 1}, {-1, -1},
{ 1, -1}, {-1, 1},
{ 2, 1}, { 1, 2},
{-2, -1}, {-1, -2},
{ 2, -1}, { 1, -2},
{-2, 1}, {-1, 2}
};
static const unsigned int num_steps =
sizeof(steps) / sizeof(struct g2d_step);
ctx = g2d_init(dev->fd);
if (!ctx)
return -EFAULT;
img.bo[0] = buf->handle;
/* create pattern of half the screen size */
checkerboard = create_checkerboard_pattern(screen_width / 64, screen_height / 64, 32);
if (!checkerboard) {
ret = -EFAULT;
goto fail;
}
img_w = (screen_width / 64) * 32;
img_h = (screen_height / 64) * 32;
switch (type) {
case G2D_IMGBUF_GEM:
memcpy(tmp->vaddr, checkerboard, img_w * img_h * 4);
tmp_img.bo[0] = tmp->handle;
break;
case G2D_IMGBUF_USERPTR:
tmp_img.user_ptr[0].userptr = (unsigned long)checkerboard;
tmp_img.user_ptr[0].size = img_w * img_h * 4;
break;
case G2D_IMGBUF_COLOR:
default:
ret = -EFAULT;
goto fail;
}
/* solid fill framebuffer with white color */
img.width = screen_width;
img.height = screen_height;
img.stride = screen_width * 4;
img.buf_type = G2D_IMGBUF_GEM;
img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
img.color = 0xffffffff;
/* put checkerboard pattern in the center of the framebuffer */
cur_x = (screen_width - img_w) / 2;
cur_y = (screen_height - img_h) / 2;
tmp_img.width = img_w;
tmp_img.height = img_h;
tmp_img.stride = img_w * 4;
tmp_img.buf_type = type;
tmp_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
ret = g2d_solid_fill(ctx, &img, 0, 0, screen_width, screen_height) ||
g2d_copy(ctx, &tmp_img, &img, 0, 0, cur_x, cur_y, img_w, img_h);
if (!ret)
ret = g2d_exec(ctx);
if (ret < 0)
goto fail;
printf("move test with %s.\n",
type == G2D_IMGBUF_GEM ? "gem" : "userptr");
srand(time(NULL));
for (count = 0; count < 256; ++count) {
const struct g2d_step *s;
/* select step and validate it */
while (1) {
s = &steps[random() % num_steps];
if (cur_x + s->x < 0 || cur_y + s->y < 0 ||
cur_x + img_w + s->x >= screen_width ||
cur_y + img_h + s->y >= screen_height)
continue;
else
break;
}
ret = g2d_move(ctx, &img, cur_x, cur_y, cur_x + s->x, cur_y + s->y,
img_w, img_h);
if (!ret)
ret = g2d_exec(ctx);
if (ret < 0)
goto fail;
cur_x += s->x;
cur_y += s->y;
usleep(100000);
}
fail:
g2d_fini(ctx);
free(checkerboard);
return ret;
}
static int g2d_copy_with_scale_test(struct exynos_device *dev,
struct exynos_bo *src,
struct exynos_bo *dst,
enum e_g2d_buf_type type)
{
struct g2d_context *ctx;
struct g2d_image src_img = {0}, dst_img = {0};
unsigned int src_x, src_y, img_w, img_h;
unsigned long userptr, size;
int ret;
ctx = g2d_init(dev->fd);
if (!ctx)
return -EFAULT;
dst_img.bo[0] = dst->handle;
src_x = 0;
src_y = 0;
img_w = screen_width;
img_h = screen_height;
switch (type) {
case G2D_IMGBUF_GEM:
src_img.bo[0] = src->handle;
break;
case G2D_IMGBUF_USERPTR:
size = img_w * img_h * 4;
userptr = (unsigned long)malloc(size);
if (!userptr) {
fprintf(stderr, "failed to allocate userptr.\n");
ret = -EFAULT;
goto fail;
}
src_img.user_ptr[0].userptr = userptr;
src_img.user_ptr[0].size = size;
break;
case G2D_IMGBUF_COLOR:
default:
ret = -EFAULT;
goto fail;
}
printf("copy and scale test with %s.\n",
type == G2D_IMGBUF_GEM ? "gem" : "userptr");
src_img.width = img_w;
src_img.height = img_h;
src_img.stride = src_img.width * 4;
src_img.buf_type = type;
src_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
src_img.color = 0xffffffff;
ret = g2d_solid_fill(ctx, &src_img, src_x, src_y, img_w , img_h);
if (ret < 0)
goto err_free_userptr;
src_img.color = 0xff00ff00;
ret = g2d_solid_fill(ctx, &src_img, 5, 5, 100, 100);
if (ret < 0)
goto err_free_userptr;
dst_img.width = img_w;
dst_img.height = img_h;
dst_img.buf_type = G2D_IMGBUF_GEM;
dst_img.stride = dst_img.width * 4;
dst_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
ret = g2d_copy_with_scale(ctx, &src_img, &dst_img, 5, 5, 100, 100,
100, 100, 200, 200, 0);
if (ret < 0)
goto err_free_userptr;
g2d_exec(ctx);
err_free_userptr:
if (type == G2D_IMGBUF_USERPTR)
if (userptr)
free((void *)userptr);
fail:
g2d_fini(ctx);
return ret;
}
#ifdef EXYNOS_G2D_USERPTR_TEST
static int g2d_blend_test(struct exynos_device *dev,
struct exynos_bo *src,
struct exynos_bo *dst,
enum e_g2d_buf_type type)
{
struct g2d_context *ctx;
struct g2d_image src_img = {0}, dst_img = {0};
unsigned int src_x, src_y, dst_x, dst_y, img_w, img_h;
unsigned long userptr, size;
int ret;
ctx = g2d_init(dev->fd);
if (!ctx)
return -EFAULT;
dst_img.bo[0] = dst->handle;
src_x = 0;
src_y = 0;
dst_x = 0;
dst_y = 0;
img_w = screen_width;
img_h = screen_height;
switch (type) {
case G2D_IMGBUF_GEM:
src_img.bo[0] = src->handle;
break;
case G2D_IMGBUF_USERPTR:
size = img_w * img_h * 4;
userptr = (unsigned long)malloc(size);
if (!userptr) {
fprintf(stderr, "failed to allocate userptr.\n");
ret = -EFAULT;
goto fail;
}
src_img.user_ptr[0].userptr = userptr;
src_img.user_ptr[0].size = size;
break;
case G2D_IMGBUF_COLOR:
default:
ret = -EFAULT;
goto fail;
}
printf("blend test with %s.\n",
type == G2D_IMGBUF_GEM ? "gem" : "userptr");
src_img.width = img_w;
src_img.height = img_h;
src_img.stride = src_img.width * 4;
src_img.buf_type = type;
src_img.select_mode = G2D_SELECT_MODE_NORMAL;
src_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
src_img.color = 0xffffffff;
ret = g2d_solid_fill(ctx, &src_img, src_x, src_y, img_w, img_h);
if (ret < 0)
goto err_free_userptr;
src_img.color = 0x770000ff;
ret = g2d_solid_fill(ctx, &src_img, 5, 5, 200, 200);
if (ret < 0)
goto err_free_userptr;
dst_img.width = img_w;
dst_img.height = img_h;
dst_img.stride = dst_img.width * 4;
dst_img.buf_type = G2D_IMGBUF_GEM;
dst_img.select_mode = G2D_SELECT_MODE_NORMAL;
dst_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
dst_img.color = 0xffffffff;
ret = g2d_solid_fill(ctx, &dst_img, dst_x, dst_y, img_w, img_h);
if (ret < 0)
goto err_free_userptr;
dst_img.color = 0x77ff0000;
ret = g2d_solid_fill(ctx, &dst_img, 105, 105, 200, 200);
if (ret < 0)
goto err_free_userptr;
ret = g2d_blend(ctx, &src_img, &dst_img, 5, 5, 105, 105, 200, 200,
G2D_OP_OVER);
if (ret < 0)
goto err_free_userptr;
g2d_exec(ctx);
err_free_userptr:
if (type == G2D_IMGBUF_USERPTR)
if (userptr)
free((void *)userptr);
fail:
g2d_fini(ctx);
return ret;
}
#endif
static int g2d_checkerboard_test(struct exynos_device *dev,
struct exynos_bo *src,
struct exynos_bo *dst,
enum e_g2d_buf_type type)
{
struct g2d_context *ctx;
struct g2d_image src_img = {0}, dst_img = {0};
unsigned int src_x, src_y, dst_x, dst_y, img_w, img_h;
void *checkerboard = NULL;
int ret;
ctx = g2d_init(dev->fd);
if (!ctx)
return -EFAULT;
dst_img.bo[0] = dst->handle;
src_x = 0;
src_y = 0;
dst_x = 0;
dst_y = 0;
checkerboard = create_checkerboard_pattern(screen_width / 32, screen_height / 32, 32);
if (!checkerboard) {
ret = -EFAULT;
goto fail;
}
img_w = screen_width - (screen_width % 32);
img_h = screen_height - (screen_height % 32);
switch (type) {
case G2D_IMGBUF_GEM:
memcpy(src->vaddr, checkerboard, img_w * img_h * 4);
src_img.bo[0] = src->handle;
break;
case G2D_IMGBUF_USERPTR:
src_img.user_ptr[0].userptr = (unsigned long)checkerboard;
src_img.user_ptr[0].size = img_w * img_h * 4;
break;
case G2D_IMGBUF_COLOR:
default:
ret = -EFAULT;
goto fail;
}
printf("checkerboard test with %s.\n",
type == G2D_IMGBUF_GEM ? "gem" : "userptr");
src_img.width = img_w;
src_img.height = img_h;
src_img.stride = src_img.width * 4;
src_img.buf_type = type;
src_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
dst_img.width = screen_width;
dst_img.height = screen_height;
dst_img.stride = dst_img.width * 4;
dst_img.buf_type = G2D_IMGBUF_GEM;
dst_img.color_mode = G2D_COLOR_FMT_ARGB8888 | G2D_ORDER_AXRGB;
src_img.color = 0xff000000;
ret = g2d_solid_fill(ctx, &dst_img, src_x, src_y, screen_width, screen_height);
if (ret < 0)
goto fail;
ret = g2d_copy(ctx, &src_img, &dst_img, src_x, src_y, dst_x, dst_y,
img_w, img_h);
if (ret < 0)
goto fail;
g2d_exec(ctx);
fail:
free(checkerboard);
g2d_fini(ctx);
return ret;
}
static void usage(char *name)
{
fprintf(stderr, "usage: %s [-s]\n", name);
fprintf(stderr, "-s <connector_id>@<crtc_id>:<mode>\n");
exit(0);
}
extern char *optarg;
static const char optstr[] = "s:";
int main(int argc, char **argv)
{
struct exynos_device *dev;
struct exynos_bo *bo, *src;
struct connector con;
unsigned int fb_id;
uint32_t handles[4] = {0}, pitches[4] = {0}, offsets[4] = {0};
drmModeRes *resources;
int ret, fd, c;
memset(&con, 0, sizeof(struct connector));
if (argc != 3) {
usage(argv[0]);
return -EINVAL;
}
while ((c = getopt(argc, argv, optstr)) != -1) {
switch (c) {
case 's':
con.crtc = -1;
if (sscanf(optarg, "%d:0x%64s",
&con.id,
con.mode_str) != 2 &&
sscanf(optarg, "%d@%d:%64s",
&con.id,
&con.crtc,
con.mode_str) != 3)
usage(argv[0]);
break;
default:
usage(argv[0]);
break;
}
}
fd = drmOpen(DRM_MODULE_NAME, NULL);
if (fd < 0) {
fprintf(stderr, "failed to open.\n");
return fd;
}
dev = exynos_device_create(fd);
if (!dev) {
ret = -EFAULT;
goto err_drm_close;
}
resources = drmModeGetResources(dev->fd);
if (!resources) {
fprintf(stderr, "drmModeGetResources failed: %s\n",
strerror(errno));
ret = -EFAULT;
goto err_dev_destory;
}
connector_find_mode(dev->fd, &con, resources);
drmModeFreeResources(resources);
if (!con.mode) {
fprintf(stderr, "failed to find usable connector\n");
ret = -EFAULT;
goto err_dev_destory;
}
screen_width = con.mode->hdisplay;
screen_height = con.mode->vdisplay;
if (screen_width == 0 || screen_height == 0) {
fprintf(stderr, "failed to find sane resolution on connector\n");
ret = -EFAULT;
goto err_dev_destory;
}
printf("screen width = %d, screen height = %d\n", screen_width,
screen_height);
bo = exynos_create_buffer(dev, screen_width * screen_height * 4, 0);
if (!bo) {
ret = -EFAULT;
goto err_dev_destory;
}
handles[0] = bo->handle;
pitches[0] = screen_width * 4;
offsets[0] = 0;
ret = drmModeAddFB2(dev->fd, screen_width, screen_height,
DRM_FORMAT_XRGB8888, handles,
pitches, offsets, &fb_id, 0);
if (ret < 0)
goto err_destroy_buffer;
memset(bo->vaddr, 0xff, screen_width * screen_height * 4);
ret = drm_set_crtc(dev, &con, fb_id);
if (ret < 0)
goto err_rm_fb;
ret = g2d_solid_fill_test(dev, bo);
if (ret < 0) {
fprintf(stderr, "failed to solid fill operation.\n");
goto err_rm_fb;
}
wait_for_user_input(0);
src = exynos_create_buffer(dev, screen_width * screen_height * 4, 0);
if (!src) {
ret = -EFAULT;
goto err_rm_fb;
}
ret = g2d_copy_test(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to test copy operation.\n");
goto err_free_src;
}
wait_for_user_input(0);
ret = g2d_move_test(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to test move operation.\n");
goto err_free_src;
}
wait_for_user_input(0);
ret = g2d_copy_with_scale_test(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to test copy and scale operation.\n");
goto err_free_src;
}
wait_for_user_input(0);
ret = g2d_checkerboard_test(dev, src, bo, G2D_IMGBUF_GEM);
if (ret < 0) {
fprintf(stderr, "failed to issue checkerboard test.\n");
goto err_free_src;
}
wait_for_user_input(1);
/*
* The blend test uses the userptr functionality of exynos-drm, which
* is currently not safe to use. If the kernel hasn't been build with
* exynos-iommu support, then the blend test is going to produce (kernel)
* memory corruption, eventually leading to a system crash.
*
* Disable the test for now, until the kernel code has been sanitized.
*/
#ifdef EXYNOS_G2D_USERPTR_TEST
ret = g2d_blend_test(dev, src, bo, G2D_IMGBUF_USERPTR);
if (ret < 0)
fprintf(stderr, "failed to test blend operation.\n");
getchar();
#endif
err_free_src:
if (src)
exynos_destroy_buffer(src);
err_rm_fb:
drmModeRmFB(dev->fd, fb_id);
err_destroy_buffer:
exynos_destroy_buffer(bo);
err_dev_destory:
exynos_device_destroy(dev);
err_drm_close:
drmClose(fd);
return ret;
}