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diff --git a/src/gallium/auxiliary/util/u_inlines.h b/src/gallium/auxiliary/util/u_inlines.h
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+/**************************************************************************
+ *
+ * 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 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 18:13:41 +0000