X-Git-Url: https://git.sesse.net/?p=fjl;a=blobdiff_plain;f=idct.h;h=944db0d642341e254171ad014251124a5deb462a;hp=97a6a5cc1f0ea7c9430748783754ef4f36e6bc42;hb=b86c08340ece81f07ede8740c4cf62abd40ba641;hpb=f2779423add3f07faccc8332914428fc6eea6652

diff --git a/idct.h b/idct.h
index 97a6a5c..944db0d 100644
--- a/idct.h
+++ b/idct.h
@@ -6,13 +6,15 @@
 #define DCTSIZE 8
 #define DCTSIZE2 64
 
-typedef void (idct_func_t)(const int16_t*, const uint32_t*, uint8_t*);
+// void* idct_example_alloc(const uint32_t* quant_table);
+typedef void* (idct_alloc_t)(const uint32_t*);
 
-// Non-factorized reference version (section A.3.3 of the JPEG standard).
-void idct_reference(const int16_t* input, const uint32_t* quant_table, uint8_t* output);
+// void idct_example_free(const void* userdata);
+// userdata is the same as returned by the alloc function.
+typedef void (idct_free_t)(void*);
 
-// Floating-point IDCT due to Arai, Agui and Nakajima (also known as AA&N).
-// See idct.c for more details.
-void idct_float(const int16_t* input, const uint32_t* quant_table, uint8_t* output);
+// void idct_example(const int16_t* input, const void* userdata, uint8_t* output);
+// userdata is the same as returned by the alloc function.
+typedef void (idct_func_t)(const int16_t*, const void*, uint8_t*);
 
 #endif /* !defined(_IDCT_H) */