picoproj: add a note about image dimensions and native resolution

[libam7xxx.git] / src / am7xxx.c

diff --git a/src/am7xxx.c b/src/am7xxx.c
index 1035e23..8087f89 100644 (file)
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -36,6 +36,20 @@
 #  define  __attribute__(x)  /*NOTHING*/
 #endif
 
+/* Control shared library symbols visibility */
+#if defined _WIN32 || defined __CYGWIN__
+       #define AM7XXX_PUBLIC __declspec(dllexport)
+       #define AM7XXX_LOCAL
+#else
+       #if __GNUC__ >= 4
+               #define AM7XXX_PUBLIC __attribute__ ((visibility ("default")))
+               #define AM7XXX_LOCAL  __attribute__ ((visibility ("hidden")))
+       #else
+               #define AM7XXX_PUBLIC
+               #define AM7XXX_LOCAL
+       #endif
+#endif
+
 static void log_message(am7xxx_context *ctx,
                        int level,
                        const char *function,
@@ -551,7 +565,9 @@ out:
        return ret;
 }
 
-int am7xxx_init(am7xxx_context **ctx)
+/* Public API */
+
+AM7XXX_PUBLIC int am7xxx_init(am7xxx_context **ctx)
 {
        int ret = 0;
 
@@ -590,7 +606,7 @@ out:
        return ret;
 }
 
-void am7xxx_shutdown(am7xxx_context *ctx)
+AM7XXX_PUBLIC void am7xxx_shutdown(am7xxx_context *ctx)
 {
        am7xxx_device *current;
 
@@ -612,12 +628,12 @@ void am7xxx_shutdown(am7xxx_context *ctx)
        ctx = NULL;
 }
 
-void am7xxx_set_log_level(am7xxx_context *ctx, am7xxx_log_level log_level)
+AM7XXX_PUBLIC void am7xxx_set_log_level(am7xxx_context *ctx, am7xxx_log_level log_level)
 {
        ctx->log_level = log_level;
 }
 
-int am7xxx_open_device(am7xxx_context *ctx, am7xxx_device **dev,
+AM7XXX_PUBLIC int am7xxx_open_device(am7xxx_context *ctx, am7xxx_device **dev,
                       unsigned int device_index)
 {
        int ret;
@@ -639,7 +655,7 @@ int am7xxx_open_device(am7xxx_context *ctx, am7xxx_device **dev,
        return ret;
 }
 
-int am7xxx_close_device(am7xxx_device *dev)
+AM7XXX_PUBLIC int am7xxx_close_device(am7xxx_device *dev)
 {
        if (dev == NULL) {
                fatal("dev must not be NULL!\n");
@@ -653,7 +669,7 @@ int am7xxx_close_device(am7xxx_device *dev)
        return 0;
 }
 
-int am7xxx_get_device_info(am7xxx_device *dev,
+AM7XXX_PUBLIC int am7xxx_get_device_info(am7xxx_device *dev,
                           am7xxx_device_info *device_info)
 {
        int ret;
@@ -692,7 +708,7 @@ int am7xxx_get_device_info(am7xxx_device *dev,
        return 0;
 }
 
-int am7xxx_calc_scaled_image_dimensions(am7xxx_device *dev,
+AM7XXX_PUBLIC int am7xxx_calc_scaled_image_dimensions(am7xxx_device *dev,
                                        unsigned int upscale,
                                        unsigned int original_width,
                                        unsigned int original_height,
@@ -754,7 +770,7 @@ int am7xxx_calc_scaled_image_dimensions(am7xxx_device *dev,
        return 0;
 }
 
-int am7xxx_send_image(am7xxx_device *dev,
+AM7XXX_PUBLIC int am7xxx_send_image(am7xxx_device *dev,
                      am7xxx_image_format format,
                      unsigned int width,
                      unsigned int height,
@@ -790,7 +806,7 @@ int am7xxx_send_image(am7xxx_device *dev,
        return send_data(dev, image, image_size);
 }
 
-int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode mode)
+AM7XXX_PUBLIC int am7xxx_set_power_mode(am7xxx_device *dev, am7xxx_power_mode mode)
 {
        int ret;
        struct am7xxx_header h = {