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authorMateusz Krawczuk <m.krawczuk@samsung.com>2015-06-12 20:09:25 +0200
committerSylwester Nawrocki <s.nawrocki@samsung.com>2015-07-09 15:55:04 +0200
commit2915635a0a4d03fe442399a679a42a92b33c8b99 (patch)
treede92f5b23564bc54fff8daf80b135735bdbca1c0 /v4l2-mfc-example
parentfb8b15e776fb02e8f99886092c869a603f1460cb (diff)
v4l2-mfc-example: Add and refactor gem functions
Gem function related moved to gem.c and gem.h It should make code more clean and obviously. Signed-off-by: Mateusz Krawczuk <m.krawczuk@samsung.com>
Diffstat (limited to 'v4l2-mfc-example')
-rw-r--r--v4l2-mfc-example/Makefile2
-rw-r--r--v4l2-mfc-example/gem.c85
-rw-r--r--v4l2-mfc-example/gem.h40
3 files changed, 126 insertions, 1 deletions
diff --git a/v4l2-mfc-example/Makefile b/v4l2-mfc-example/Makefile
index 7056683..64294a8 100644
--- a/v4l2-mfc-example/Makefile
+++ b/v4l2-mfc-example/Makefile
@@ -48,7 +48,7 @@ INCLUDES = $(KERNELHEADERS) $(DRMHEADERS)
#-I$(TARGETROOT)/usr/include/linux
-SOURCES = main.c fileops.c args.c parser.c fb.c fimc.c mfc.c queue.c drm.c
+SOURCES = main.c fileops.c args.c parser.c fb.c fimc.c mfc.c queue.c drm.c gem.c
OBJECTS := $(SOURCES:.c=.o)
EXEC = v4l2_decode
CFLAGS = -Wall -g -DS5PC1XX_FIMC -lm
diff --git a/v4l2-mfc-example/gem.c b/v4l2-mfc-example/gem.c
new file mode 100644
index 0000000..a6d6516
--- /dev/null
+++ b/v4l2-mfc-example/gem.c
@@ -0,0 +1,85 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <linux/videodev2.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "fimc.h"
+#include <drm/exynos_drm.h>
+
+#include <errno.h>
+#include <drm/drm_fourcc.h>
+#include "gem.h"
+
+int exynos_gem_create(int fd, struct drm_exynos_gem_create *gem)
+{
+ int ret;
+ if (!gem) {
+ fprintf(stderr,"%s: %d - GEM object is null\n",__func__,__LINE__);
+ return -EINVAL;
+ }
+
+ ret = ioctl(fd, DRM_IOCTL_EXYNOS_GEM_CREATE, gem) ;
+ if(ret){
+ fprintf(stderr,"%s: %d - Failed to create GEM buffer\n %d %s",__func__,__LINE__,ret,strerror(errno));
+ return -EINVAL;
+
+ }
+ return 0;
+}
+
+int exynos_gem_map_offset(int fd, struct drm_mode_map_dumb *map_off)
+{
+
+ if (ioctl(fd, DRM_IOCTL_MODE_MAP_DUMB, map_off) < 0) {
+ fprintf(stderr,"%s: %d - Failed to get buffer offset\n",__func__,__LINE__);
+ return -EINVAL;
+ }
+ return 0;
+}
+int exynos_gem_mmap(int fd, struct exynos_gem_mmap_data *in_mmap)
+{
+ int ret;
+ void *map;
+ struct drm_mode_map_dumb arg;
+
+ memset(&arg, 0, sizeof(arg));
+ arg.handle = in_mmap->handle;
+
+ ret = ioctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &arg);
+ if (ret) {
+ fprintf(stderr, "%s: %d - failed to map dumb buffer: %s\n",
+ __func__, __LINE__, strerror(errno));
+ return ret;
+ }
+
+ in_mmap->offset = arg.offset;
+
+ map = mmap(NULL, (size_t)in_mmap->size, PROT_READ | PROT_WRITE,
+ MAP_SHARED, fd, (off_t)arg.offset);
+ if (map == MAP_FAILED) {
+ fprintf(stderr, "%s: %d - failed to mmap buffer: %s\n",
+ __func__, __LINE__, strerror(errno));
+ return -EFAULT;
+ }
+
+ in_mmap->addr = map;
+
+ return 0;
+}
+
+int exynos_gem_close(int fd, struct drm_gem_close *gem_close)
+{
+ int ret = 0;
+
+ ret = ioctl(fd, DRM_IOCTL_GEM_CLOSE, gem_close);
+ if (ret < 0)
+ fprintf(stderr, "%s: %d - failed to close: %s\n", __func__, __LINE__, strerror(-ret));
+ return ret;
+} \ No newline at end of file
diff --git a/v4l2-mfc-example/gem.h b/v4l2-mfc-example/gem.h
new file mode 100644
index 0000000..8b92b48
--- /dev/null
+++ b/v4l2-mfc-example/gem.h
@@ -0,0 +1,40 @@
+/*
+ * V4L2 Codec decoding example application
+ * Kamil Debski <k.debski@samsung.com>
+ * Mateusz Krawczuk <m.krawczuk@samsung.com>
+ *
+ * GEM operations header file
+ *
+ * Copyright 2015 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+#ifndef INCLUDE_GEM_H
+#define INCLUDE_GEM_H
+
+#include "common.h"
+#include <drm/exynos_drm.h>
+
+struct exynos_gem_mmap_data {
+ uint32_t handle;
+ uint64_t size;
+ uint64_t offset;
+ void *addr;
+};
+
+int exynos_gem_create(int fd, struct drm_exynos_gem_create *gem);
+int exynos_gem_map_offset(int fd, struct drm_mode_map_dumb *map_off);
+int exynos_gem_mmap(int fd, struct exynos_gem_mmap_data *in_mmap);
+int exynos_gem_close(int fd, struct drm_gem_close *gem_close);
+#endif /* INCLUDE_IPP_H */