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hvif-light
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Return error if the pointer for a return value is NULL

This commit is contained in:
Hans-Joerg Schurr 2021-06-05 22:48:38 +02:00
parent 1ec380ae54
commit e39473e4fb
2 changed files with 8 additions and 1 deletions
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6
src/hvif-light.c
View File

@ -799,6 +799,7 @@ hvif_status
hvif_style_gradient_type(
hvif_image* image, uint8_t style, hvif_gradients_type* type)
{
if (type == NULL) return ERROR_NULL_OUT;
if (image == NULL) return ERROR_STYLE;
if (style >= image->num_styles) return ERROR_STYLE;
*type = image->styles[style].gradient_type;
@ -808,6 +809,7 @@ hvif_style_gradient_type(
hvif_status
hvif_style_num_stops(hvif_image* image, uint8_t style, uint8_t* num_stops)
{
if (num_stops == NULL) return ERROR_NULL_OUT;
if (image == NULL) return ERROR_STYLE;
if (style >= image->num_styles) return ERROR_STYLE;
*num_stops = image->styles[style].num_stops;
@ -819,6 +821,7 @@ hvif_style_stop(
hvif_image* image, uint8_t style, uint8_t stop,
hvif_gradient_stop* gradient_stop)
{
if (gradient_stop == NULL) return ERROR_NULL_OUT;
if (image == NULL) return ERROR_STYLE;
if (style >= image->num_styles) return ERROR_STYLE;
if (stop >= image->styles[style].num_stops) return ERROR_STYLE;
@ -831,6 +834,7 @@ hvif_status
hvif_style_transformation(
hvif_image* image, uint8_t style, hvif_matrix* transformation)
{
if (transformation == NULL) return ERROR_NULL_OUT;
if (image == NULL) return ERROR_STYLE;
if (style >= image->num_styles) return ERROR_STYLE;
*transformation = image->styles[style].transformation;
@ -839,6 +843,7 @@ hvif_style_transformation(
hvif_status hvif_path_num_points(
hvif_image* image, uint8_t path, uint8_t* points) {
if (points == NULL) return ERROR_NULL_OUT;
if (image == NULL) return ERROR_PATH;
if (path >= image->num_paths) return ERROR_PATH;
*points = image->paths[path].num_points;
@ -847,6 +852,7 @@ hvif_status hvif_path_num_points(
hvif_status hvif_path_closed(
hvif_image* image, uint8_t path, bool* closed) {
if (closed == NULL) return ERROR_NULL_OUT;
if (image == NULL) return ERROR_PATH;
if (path >= image->num_paths) return ERROR_PATH;
*closed = image->paths[path].closed;

3
src/hvif-light.h
View File

@ -28,7 +28,8 @@ typedef enum hvif_status
ERROR_MAGIC, /**< The magic number of the file is wrong. */
ERROR_STYLE, /**< A style related error occurred. */
ERROR_PATH, /**< A path related error occurred. */
ERROR_SHAPE /**< A shape related error occurred. */
ERROR_SHAPE, /**< A shape related error occurred. */
ERROR_NULL_OUT /**< A pointer used for results was NULL. */
} hvif_status;
/**