1 /**************************************************************************
3 * Copyright 2009 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
29 * Functions for checking if buffers/textures are referenced when we need
30 * to read/write from/to them. Flush when needed.
36 #include "vg_context.h"
38 #include "pipe/p_context.h"
39 #include "pipe/p_screen.h"
40 #include "pipe/p_defines.h"
41 #include "util/u_inlines.h"
42 #include "pipe/p_state.h"
44 static INLINE struct pipe_transfer *
45 st_cond_flush_get_tex_transfer(struct vg_context *st,
46 struct pipe_texture *pt,
50 enum pipe_transfer_usage usage,
51 unsigned int x, unsigned int y,
52 unsigned int w, unsigned int h)
54 struct pipe_context *pipe = st->pipe;
56 pipe->is_texture_referenced(pipe, pt, face, level);
58 if (referenced && ((referenced & PIPE_REFERENCED_FOR_WRITE) ||
59 (usage & PIPE_TRANSFER_WRITE)))
62 return pipe->get_tex_transfer(pipe, pt, face, level, zslice, usage,
66 static INLINE struct pipe_transfer *
67 st_no_flush_get_tex_transfer(struct vg_context *st,
68 struct pipe_texture *pt,
72 enum pipe_transfer_usage usage,
73 unsigned int x, unsigned int y,
74 unsigned int w, unsigned int h)
76 struct pipe_context *pipe = st->pipe;
78 return pipe->get_tex_transfer(pipe, pt, face, level,
79 zslice, usage, x, y, w, h);
83 st_cond_flush_pipe_buffer_map(struct vg_context *st,
84 struct pipe_buffer *buf,
85 unsigned int map_flags)
87 struct pipe_context *pipe = st->pipe;
88 unsigned int referenced = pipe->is_buffer_referenced(pipe, buf);
90 if (referenced && ((referenced & PIPE_REFERENCED_FOR_WRITE) ||
91 (map_flags & PIPE_BUFFER_USAGE_CPU_WRITE)))
94 return pipe_buffer_map(pipe->screen, buf, map_flags);
98 st_no_flush_pipe_buffer_map(struct vg_context *st,
99 struct pipe_buffer *buf,
100 unsigned int map_flags)
102 return pipe_buffer_map(st->pipe->screen, buf, map_flags);
107 st_cond_flush_pipe_buffer_write(struct vg_context *st,
108 struct pipe_buffer *buf,
113 struct pipe_context *pipe = st->pipe;
115 if (pipe->is_buffer_referenced(pipe, buf))
118 pipe_buffer_write(pipe->screen, buf, offset, size, data);
122 st_no_flush_pipe_buffer_write(struct vg_context *st,
123 struct pipe_buffer *buf,
128 pipe_buffer_write(st->pipe->screen, buf, offset, size, data);
132 st_cond_flush_pipe_buffer_read(struct vg_context *st,
133 struct pipe_buffer *buf,
138 struct pipe_context *pipe = st->pipe;
140 if (pipe->is_buffer_referenced(pipe, buf) & PIPE_REFERENCED_FOR_WRITE)
143 pipe_buffer_read(pipe->screen, buf, offset, size, data);
147 st_no_flush_pipe_buffer_read(struct vg_context *st,
148 struct pipe_buffer *buf,
153 pipe_buffer_read(st->pipe->screen, buf, offset, size, data);