diff options
Diffstat (limited to 'src/core.c')
| -rw-r--r-- | src/core.c | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -74,6 +74,11 @@ * Allow scale all the drawn content to match the high-DPI equivalent size (only PLATFORM_DESKTOP) * NOTE: This flag is forced on macOS, since most displays are high-DPI * +* #define SUPPORT_COMPRESSION_API +* Support CompressData() and DecompressData() functions, those functions use zlib implementation +* provided by stb_image and stb_image_write libraries, so, those libraries must be enabled on textures module +* for linkage +* * DEPENDENCIES: * rglfw - Manage graphic device, OpenGL context and inputs on PLATFORM_DESKTOP (Windows, Linux, OSX. FreeBSD, OpenBSD, NetBSD, DragonFly) * raymath - 3D math functionality (Vector2, Vector3, Matrix, Quaternion) @@ -252,6 +257,12 @@ #include <emscripten/html5.h> // Emscripten HTML5 library #endif +#if defined(SUPPORT_COMPRESSION_API) + // NOTE: Those declarations require stb_image and stb_image_write definitions, included in textures module + unsigned char *stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality); + char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen); +#endif + //---------------------------------------------------------------------------------- // Defines and Macros //---------------------------------------------------------------------------------- @@ -2019,6 +2030,32 @@ long GetFileModTime(const char *fileName) return 0; } +// Compress data (DEFLATE algorythm) +unsigned char *CompressData(unsigned char *data, int dataLength, int *compDataLength) +{ + #define COMPRESSION_QUALITY_DEFLATE 8 + + unsigned char *compData = NULL; + +#if defined(SUPPORT_COMPRESSION_API) + compData = stbi_zlib_compress(data, dataLength, compDataLength, COMPRESSION_QUALITY_DEFLATE); +#endif + + return compData; +} + +// Decompress data (DEFLATE algorythm) +char *DecompressData(char *compData, int compDataLength, int *dataLength) +{ + char *data = NULL; + +#if defined(SUPPORT_COMPRESSION_API) + data = stbi_zlib_decode_malloc(compData, compDataLength, dataLength); +#endif + + return data; +} + // Save integer value to storage file (to defined position) // NOTE: Storage positions is directly related to file memory layout (4 bytes each integer) void StorageSaveValue(int position, int value) |