| /* |
| * Copyright 2011 Joakim Sindholt <opensource@zhasha.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * on the rights to use, copy, modify, merge, publish, distribute, sub |
| * license, and/or sell copies of the Software, and to permit persons to whom |
| * the Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. */ |
| |
| #ifndef _NINE_HELPERS_H_ |
| #define _NINE_HELPERS_H_ |
| |
| #include "iunknown.h" |
| #include "nine_lock.h" |
| |
| /* |
| * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to |
| * avoid evaluating arguments (which are often function calls) more than once. |
| */ |
| |
| static inline unsigned _min(unsigned a, unsigned b) |
| { |
| return (a < b) ? a : b; |
| } |
| |
| |
| /* Sshhh ... */ |
| #define nine_reference(a, b) _nine_reference((void **)(a), (b)) |
| |
| static inline void _nine_reference(void **ref, void *ptr) |
| { |
| if (*ref != ptr) { |
| if (*ref) |
| NineUnknown_Release(*ref); |
| if (ptr) |
| NineUnknown_AddRef(ptr); |
| *ref = ptr; |
| } |
| } |
| |
| #define nine_reference_set(a, b) _nine_reference_set((void **)(a), (b)) |
| |
| static inline void _nine_reference_set(void **ref, void *ptr) |
| { |
| *ref = ptr; |
| if (ptr) |
| NineUnknown_AddRef(ptr); |
| } |
| |
| #define nine_bind(a, b) _nine_bind((void **)(a), (b)) |
| |
| static inline void _nine_bind(void **dst, void *obj) |
| { |
| if (*dst != obj) { |
| if (*dst) |
| NineUnknown_Unbind(*dst); |
| if (obj) |
| NineUnknown_Bind(obj); |
| *dst = obj; |
| } |
| } |
| |
| #define NINE_DEVICE_CHILD_NEW(nine, out, dev, ...) \ |
| { \ |
| struct NineUnknownParams __params; \ |
| struct Nine##nine *__data; \ |
| \ |
| __data = CALLOC_STRUCT(Nine##nine); \ |
| if (!__data) { return E_OUTOFMEMORY; } \ |
| \ |
| __params.vtable = ((dev)->params.BehaviorFlags & D3DCREATE_MULTITHREADED) ? &Lock##nine##_vtable : &Nine##nine##_vtable; \ |
| __params.guids = Nine##nine##_IIDs; \ |
| __params.dtor = (void *)Nine##nine##_dtor; \ |
| __params.container = NULL; \ |
| __params.device = dev; \ |
| { \ |
| HRESULT __hr = Nine##nine##_ctor(__data, &__params, ## __VA_ARGS__); \ |
| if (FAILED(__hr)) { \ |
| Nine##nine##_dtor(__data); \ |
| return __hr; \ |
| } \ |
| } \ |
| \ |
| *(out) = __data; \ |
| } \ |
| return D3D_OK |
| |
| #define NINE_NEW(nine, out, lock, ...) \ |
| { \ |
| struct NineUnknownParams __params; \ |
| struct Nine##nine *__data; \ |
| \ |
| __data = CALLOC_STRUCT(Nine##nine); \ |
| if (!__data) { return E_OUTOFMEMORY; } \ |
| \ |
| __params.vtable = (lock) ? &Lock##nine##_vtable : &Nine##nine##_vtable; \ |
| __params.guids = Nine##nine##_IIDs; \ |
| __params.dtor = (void *)Nine##nine##_dtor; \ |
| __params.container = NULL; \ |
| __params.device = NULL; \ |
| { \ |
| HRESULT __hr = Nine##nine##_ctor(__data, &__params, ## __VA_ARGS__); \ |
| if (FAILED(__hr)) { \ |
| Nine##nine##_dtor(__data); \ |
| return __hr; \ |
| } \ |
| } \ |
| \ |
| *(out) = __data; \ |
| } \ |
| return D3D_OK |
| |
| static inline float asfloat(DWORD value) |
| { |
| union { |
| float f; |
| DWORD w; |
| } u; |
| u.w = value; |
| return u.f; |
| } |
| |
| struct nine_range |
| { |
| struct nine_range *next; |
| int16_t bgn; /* inclusive */ |
| int16_t end; /* exclusive */ |
| }; |
| |
| /* We won't ever need more than 256 ranges, so just allocate once. */ |
| struct nine_range_pool |
| { |
| struct nine_range *free; |
| struct nine_range **slabs; |
| unsigned num_slabs; |
| unsigned num_slabs_max; |
| }; |
| |
| static inline void |
| nine_range_pool_put(struct nine_range_pool *pool, struct nine_range *r) |
| { |
| r->next = pool->free; |
| pool->free = r; |
| } |
| |
| static inline void |
| nine_range_pool_put_chain(struct nine_range_pool *pool, |
| struct nine_range *head, |
| struct nine_range *tail) |
| { |
| tail->next = pool->free; |
| pool->free = head; |
| } |
| |
| void |
| nine_ranges_insert(struct nine_range **head, int16_t bgn, int16_t end, |
| struct nine_range_pool *pool); |
| |
| #endif /* _NINE_HELPERS_H_ */ |