Add grab example

4 files changed, 38 insertions, 3 deletions

diff --git a/src/grabbers/me4.c b/src/grabbers/me4.c
index 54ac060..5b46c79 100644
--- a/src/grabbers/me4.c
+++ b/src/grabbers/me4.c
@@ -39,8 +39,14 @@ uint32_t uca_me4_alloc(struct uca_grabber_t *grabber, uint32_t n_buffers)
     uint32_t width, height;
     uca_me4_get_property(grabber, FG_WIDTH, &width);
     uca_me4_get_property(grabber, FG_HEIGHT, &height);
+
     /* FIXME: get size of pixel */
-    ((struct uca_me4_grabber_t *) grabber->user)->mem = Fg_AllocMemEx(GET_FG(grabber), n_buffers*width*height*sizeof(uint16_t), n_buffers);
+    dma_mem *mem = Fg_AllocMemEx(GET_FG(grabber), n_buffers*width*height*sizeof(uint16_t), n_buffers);
+    if (mem != NULL) {
+        ((struct uca_me4_grabber_t *) grabber->user)->mem = mem;
+        return UCA_NO_ERROR;
+    }
+    return UCA_ERR_PROP_GENERAL;
 }
 
 uint32_t uca_me4_init(struct uca_grabber_t **grabber)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index b8dfce7..3f1e2a5 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -4,6 +4,8 @@ add_definitions("--std=c99 -Wall")
 
 include_directories(${CMAKE_SOURCE_DIR}/src)
 
-add_executable(test test.c)
+add_executable(enum enum.c)
+add_executable(grab grab.c)
 
-target_link_libraries(test uca)
+target_link_libraries(enum uca)
+target_link_libraries(grab uca)
diff --git a/test/test.c b/test/enum.c
index 0649c64..0649c64 100644
--- a/test/test.c
+++ b/test/enum.c
diff --git a/test/grab.c b/test/grab.c
new file mode 100644
index 0000000..91a3cdc
--- /dev/null
+++ b/test/grab.c
@@ -0,0 +1,27 @@
+
+#include <stdio.h>
+#include "uca.h"
+#include "uca-cam.h"
+
+int main(int argc, char *argv[])
+{
+    struct uca_t *uca = uca_init();
+    if (uca == NULL) {
+        printf("Couldn't find a camera\n");
+        return 1;
+    }
+
+    /* take first camera */
+    struct uca_camera_t *cam = uca->cameras;
+
+    uint32_t val = 5000;
+    cam->set_property(cam, UCA_PROP_EXPOSURE, &val);
+    val = 0;
+    cam->set_property(cam, UCA_PROP_DELAY, &val);
+
+    if (uca_cam_alloc(cam, 20) != UCA_NO_ERROR)
+        printf("Couldn't allocate buffer memory\n");
+    
+    uca_destroy(uca);
+    return 0;
+}