From 4d7ed844313a4be64e9162369c935ce750cd9b06 Mon Sep 17 00:00:00 2001 From: Nicolai Hähnle Date: Sun, 11 Oct 2009 14:18:11 +0200 Subject: r300/compiler: Implement branch emulation for R300 fragment programs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Nicolai Hähnle --- src/mesa/drivers/dri/r300/compiler/memory_pool.h | 31 ++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'src/mesa/drivers/dri/r300/compiler/memory_pool.h') diff --git a/src/mesa/drivers/dri/r300/compiler/memory_pool.h b/src/mesa/drivers/dri/r300/compiler/memory_pool.h index ce23c319ad..42344d0e3b 100644 --- a/src/mesa/drivers/dri/r300/compiler/memory_pool.h +++ b/src/mesa/drivers/dri/r300/compiler/memory_pool.h @@ -46,4 +46,35 @@ void memory_pool_init(struct memory_pool * pool); void memory_pool_destroy(struct memory_pool * pool); void * memory_pool_malloc(struct memory_pool * pool, unsigned int bytes); + +/** + * Generic helper for growing an array that has separate size/count + * and reserved counters to accomodate up to num new element. + * + * type * Array; + * unsigned int Size; + * unsigned int Reserved; + * + * memory_pool_array_reserve(pool, type, Array, Size, Reserved, k); + * assert(Size + k < Reserved); + * + * \note Size is not changed by this macro. + * + * \warning Array, Size, Reserved have to be lvalues and may be evaluated + * several times. + */ +#define memory_pool_array_reserve(pool, type, array, size, reserved, num) do { \ + unsigned int _num = (num); \ + if ((size) + _num > (reserved)) { \ + unsigned int newreserve = (reserved) * 2; \ + type * newarray; \ + if (newreserve < _num) \ + newreserve = 4 * _num; /* arbitrary heuristic */ \ + newarray = memory_pool_malloc((pool), newreserve * sizeof(type)); \ + memcpy(newarray, (array), (size) * sizeof(type)); \ + (array) = newarray; \ + (reserved) = newreserve; \ + } \ +} while(0) + #endif /* MEMORY_POOL_H */ -- cgit v1.2.3