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Diffstat (limited to 'src/gallium/auxiliary/util/u_inlines.h')
-rw-r--r-- | src/gallium/auxiliary/util/u_inlines.h | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h new file mode 100644 index 0000000000..53f0de4215 --- /dev/null +++ b/src/gallium/auxiliary/util/u_inlines.h @@ -0,0 +1,301 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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 U_INLINES_H +#define U_INLINES_H + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" + + +#ifdef __cplusplus +extern "C" { +#endif + + +/* + * Reference counting helper functions. + */ + + +static INLINE void +pipe_reference_init(struct pipe_reference *reference, unsigned count) +{ + p_atomic_set(&reference->count, count); +} + +static INLINE boolean +pipe_is_referenced(struct pipe_reference *reference) +{ + return p_atomic_read(&reference->count) != 0; +} + +/** + * Update reference counting. + * The old thing pointed to, if any, will be unreferenced. + * Both 'ptr' and 'reference' may be NULL. + * \return TRUE if the object's refcount hits zero and should be destroyed. + */ +static INLINE boolean +pipe_reference(struct pipe_reference *ptr, struct pipe_reference *reference) +{ + boolean destroy = FALSE; + + if(ptr != reference) { + /* bump the reference.count first */ + if (reference) { + assert(pipe_is_referenced(reference)); + p_atomic_inc(&reference->count); + } + + if (ptr) { + assert(pipe_is_referenced(ptr)); + if (p_atomic_dec_zero(&ptr->count)) { + destroy = TRUE; + } + } + } + + return destroy; +} + +static INLINE void +pipe_buffer_reference(struct pipe_buffer **ptr, struct pipe_buffer *buf) +{ + struct pipe_buffer *old_buf = *ptr; + + if (pipe_reference(&(*ptr)->reference, &buf->reference)) + old_buf->screen->buffer_destroy(old_buf); + *ptr = buf; +} + +static INLINE void +pipe_surface_reference(struct pipe_surface **ptr, struct pipe_surface *surf) +{ + struct pipe_surface *old_surf = *ptr; + + if (pipe_reference(&(*ptr)->reference, &surf->reference)) + old_surf->texture->screen->tex_surface_destroy(old_surf); + *ptr = surf; +} + +static INLINE void +pipe_texture_reference(struct pipe_texture **ptr, struct pipe_texture *tex) +{ + struct pipe_texture *old_tex = *ptr; + + if (pipe_reference(&(*ptr)->reference, &tex->reference)) + old_tex->screen->texture_destroy(old_tex); + *ptr = tex; +} + + +/* + * Convenience wrappers for screen buffer functions. + */ + +static INLINE struct pipe_buffer * +pipe_buffer_create( struct pipe_screen *screen, + unsigned alignment, unsigned usage, unsigned size ) +{ + return screen->buffer_create(screen, alignment, usage, size); +} + +static INLINE struct pipe_buffer * +pipe_user_buffer_create( struct pipe_screen *screen, void *ptr, unsigned size ) +{ + return screen->user_buffer_create(screen, ptr, size); +} + +static INLINE void * +pipe_buffer_map(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned usage) +{ + if(screen->buffer_map_range) { + unsigned offset = 0; + unsigned length = buf->size; + return screen->buffer_map_range(screen, buf, offset, length, usage); + } + else + return screen->buffer_map(screen, buf, usage); +} + +static INLINE void +pipe_buffer_unmap(struct pipe_screen *screen, + struct pipe_buffer *buf) +{ + screen->buffer_unmap(screen, buf); +} + +static INLINE void * +pipe_buffer_map_range(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned offset, + unsigned length, + unsigned usage) +{ + assert(offset < buf->size); + assert(offset + length <= buf->size); + assert(length); + if(screen->buffer_map_range) + return screen->buffer_map_range(screen, buf, offset, length, usage); + else + return screen->buffer_map(screen, buf, usage); +} + +static INLINE void +pipe_buffer_flush_mapped_range(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned offset, + unsigned length) +{ + assert(offset < buf->size); + assert(offset + length <= buf->size); + assert(length); + if(screen->buffer_flush_mapped_range) + screen->buffer_flush_mapped_range(screen, buf, offset, length); +} + +static INLINE void +pipe_buffer_write(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned offset, unsigned size, + const void *data) +{ + void *map; + + assert(offset < buf->size); + assert(offset + size <= buf->size); + assert(size); + + map = pipe_buffer_map_range(screen, buf, offset, size, + PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_FLUSH_EXPLICIT | + PIPE_BUFFER_USAGE_DISCARD); + assert(map); + if(map) { + memcpy((uint8_t *)map + offset, data, size); + pipe_buffer_flush_mapped_range(screen, buf, offset, size); + pipe_buffer_unmap(screen, buf); + } +} + +/** + * Special case for writing non-overlapping ranges. + * + * We can avoid GPU/CPU synchronization when writing range that has never + * been written before. + */ +static INLINE void +pipe_buffer_write_nooverlap(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned offset, unsigned size, + const void *data) +{ + void *map; + + assert(offset < buf->size); + assert(offset + size <= buf->size); + assert(size); + + map = pipe_buffer_map_range(screen, buf, offset, size, + PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_FLUSH_EXPLICIT | + PIPE_BUFFER_USAGE_DISCARD | + PIPE_BUFFER_USAGE_UNSYNCHRONIZED); + assert(map); + if(map) { + memcpy((uint8_t *)map + offset, data, size); + pipe_buffer_flush_mapped_range(screen, buf, offset, size); + pipe_buffer_unmap(screen, buf); + } +} + +static INLINE void +pipe_buffer_read(struct pipe_screen *screen, + struct pipe_buffer *buf, + unsigned offset, unsigned size, + void *data) +{ + void *map; + + assert(offset < buf->size); + assert(offset + size <= buf->size); + assert(size); + + map = pipe_buffer_map_range(screen, buf, offset, size, PIPE_BUFFER_USAGE_CPU_READ); + assert(map); + if(map) { + memcpy(data, (const uint8_t *)map + offset, size); + pipe_buffer_unmap(screen, buf); + } +} + +static INLINE void * +pipe_transfer_map( struct pipe_transfer *transf ) +{ + struct pipe_screen *screen = transf->texture->screen; + return screen->transfer_map(screen, transf); +} + +static INLINE void +pipe_transfer_unmap( struct pipe_transfer *transf ) +{ + struct pipe_screen *screen = transf->texture->screen; + screen->transfer_unmap(screen, transf); +} + +static INLINE void +pipe_transfer_destroy( struct pipe_transfer *transf ) +{ + struct pipe_screen *screen = transf->texture->screen; + screen->tex_transfer_destroy(transf); +} + +static INLINE unsigned +pipe_transfer_buffer_flags( struct pipe_transfer *transf ) +{ + switch (transf->usage & PIPE_TRANSFER_READ_WRITE) { + case PIPE_TRANSFER_READ_WRITE: + return PIPE_BUFFER_USAGE_CPU_READ | PIPE_BUFFER_USAGE_CPU_WRITE; + case PIPE_TRANSFER_READ: + return PIPE_BUFFER_USAGE_CPU_READ; + case PIPE_TRANSFER_WRITE: + return PIPE_BUFFER_USAGE_CPU_WRITE; + default: + debug_assert(0); + return 0; + } +} + +#ifdef __cplusplus +} +#endif + +#endif /* U_INLINES_H */ |