1 files changed, 72 insertions, 0 deletions
diff --git a/src/cache.h b/src/cache.h
new file mode 100644
index 0000000..7e0ff2f
--- /dev/null
+++ b/src/cache.h
@@ -0,0 +1,72 @@
+/*
+ * This file is part of libplacebo.
+ *
+ * libplacebo is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * libplacebo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with libplacebo. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "common.h"
+#include "hash.h"
+
+#include <libplacebo/cache.h>
+
+// Convenience wrapper around pl_cache_set
+static inline void pl_cache_str(pl_cache cache, uint64_t key, pl_str *str)
+{
+    pl_cache_set(cache, &(pl_cache_obj) {
+        .key  = key,
+        .data = pl_steal(NULL, str->buf),
+        .size = str->len,
+        .free = pl_free,
+    });
+    *str = (pl_str) {0};
+}
+
+// Steal and insert a cache object
+static inline void pl_cache_steal(pl_cache cache, pl_cache_obj *obj)
+{
+    if (obj->free == pl_free)
+        obj->data = pl_steal(NULL, obj->data);
+    pl_cache_set(cache, obj);
+}
+
+// Resize `obj->data` to a given size, re-using allocated buffers where possible
+static inline void pl_cache_obj_resize(void *alloc, pl_cache_obj *obj, size_t size)
+{
+    if (obj->free != pl_free) {
+        if (obj->free)
+            obj->free(obj->data);
+        obj->data = pl_alloc(alloc, size);
+        obj->free = pl_free;
+    } else if (pl_get_size(obj->data) < size) {
+        obj->data = pl_steal(alloc, obj->data);
+        obj->data = pl_realloc(alloc, obj->data, size);
+    }
+    obj->size = size;
+}
+
+// Internal list of base seeds for different object types, randomly generated
+
+enum {
+    CACHE_KEY_SH_LUT    = UINT64_C(0x2206183d320352c6), // sh_lut cache
+    CACHE_KEY_ICC_3DLUT = UINT64_C(0xff703a6dd8a996f6), // ICC 3dlut
+    CACHE_KEY_DITHER    = UINT64_C(0x6fed75eb6dce86cb), // dither matrix
+    CACHE_KEY_H274      = UINT64_C(0x2fb9adca04b42c4d), // H.274 film grain DB
+    CACHE_KEY_GAMUT_LUT = UINT64_C(0x6109e47f15d478b1), // gamut mapping 3DLUT
+    CACHE_KEY_SPIRV     = UINT64_C(0x32352f6605ff60a7), // bare SPIR-V module
+    CACHE_KEY_VK_PIPE   = UINT64_C(0x4bdab2817ad02ad4), // VkPipelineCache
+    CACHE_KEY_GL_PROG   = UINT64_C(0x4274c309f4f0477b), // GL_ARB_get_program_binary
+    CACHE_KEY_D3D_DXBC  = UINT64_C(0x807668516811d3bc), // DXBC bytecode
+};