1 /**************************************************************************
3 * Copyright © 2009 Jakob Bornecrantz
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
24 **************************************************************************/
29 #include "pipe/p_compiler.h"
32 struct i915_winsys_buffer;
33 struct i915_winsys_batchbuffer;
35 struct pipe_fence_handle;
38 enum i915_winsys_buffer_usage
41 I915_USAGE_RENDER = 0x01,
42 I915_USAGE_SAMPLER = 0x02,
43 I915_USAGE_2D_TARGET = 0x04,
44 I915_USAGE_2D_SOURCE = 0x08,
46 I915_USAGE_VERTEX = 0x10
49 enum i915_winsys_buffer_type
52 I915_NEW_SCANOUT, /**< a texture used for scanning out from */
56 enum i915_winsys_buffer_tile
63 struct i915_winsys_batchbuffer {
65 struct i915_winsys *iws;
68 * Values exported to speed up the writing the batchbuffer,
69 * instead of having to go trough a accesor function for
84 unsigned pci_id; /**< PCI ID for the device */
87 * Batchbuffer functions.
91 * Create a new batchbuffer.
93 struct i915_winsys_batchbuffer *
94 (*batchbuffer_create)(struct i915_winsys *iws);
97 * Emit a relocation to a buffer.
98 * Target position in batchbuffer is the same as ptr.
101 * @reloc buffer address to be inserted into target.
102 * @usage how is the hardware going to use the buffer.
103 * @offset add this to the reloc buffers address
104 * @target buffer where to write the address, null for batchbuffer.
106 int (*batchbuffer_reloc)(struct i915_winsys_batchbuffer *batch,
107 struct i915_winsys_buffer *reloc,
108 enum i915_winsys_buffer_usage usage,
112 * Flush a bufferbatch.
114 void (*batchbuffer_flush)(struct i915_winsys_batchbuffer *batch,
115 struct pipe_fence_handle **fence);
118 * Destroy a batchbuffer.
120 void (*batchbuffer_destroy)(struct i915_winsys_batchbuffer *batch);
131 struct i915_winsys_buffer *
132 (*buffer_create)(struct i915_winsys *iws,
133 unsigned size, unsigned alignment,
134 enum i915_winsys_buffer_type type);
137 * Creates a buffer from a handle.
138 * Used to implement pipe_screen::resource_from_handle.
139 * Also provides the stride information needed for the
140 * texture via the stride argument.
142 struct i915_winsys_buffer *
143 (*buffer_from_handle)(struct i915_winsys *iws,
144 struct winsys_handle *whandle,
148 * Used to implement pipe_screen::resource_get_handle.
149 * The winsys might need the stride information.
151 boolean (*buffer_get_handle)(struct i915_winsys *iws,
152 struct i915_winsys_buffer *buffer,
153 struct winsys_handle *whandle,
157 * Fence a buffer with a fence reg.
158 * Not to be confused with pipe_fence_handle.
160 int (*buffer_set_fence_reg)(struct i915_winsys *iws,
161 struct i915_winsys_buffer *buffer,
163 enum i915_winsys_buffer_tile tile);
168 void *(*buffer_map)(struct i915_winsys *iws,
169 struct i915_winsys_buffer *buffer,
175 void (*buffer_unmap)(struct i915_winsys *iws,
176 struct i915_winsys_buffer *buffer);
181 * Arguments follows pipe_buffer_write.
183 int (*buffer_write)(struct i915_winsys *iws,
184 struct i915_winsys_buffer *dst,
189 void (*buffer_destroy)(struct i915_winsys *iws,
190 struct i915_winsys_buffer *buffer);
199 * Reference fence and set ptr to fence.
201 void (*fence_reference)(struct i915_winsys *iws,
202 struct pipe_fence_handle **ptr,
203 struct pipe_fence_handle *fence);
206 * Check if a fence has finished.
208 int (*fence_signalled)(struct i915_winsys *iws,
209 struct pipe_fence_handle *fence);
212 * Wait on a fence to finish.
214 int (*fence_finish)(struct i915_winsys *iws,
215 struct pipe_fence_handle *fence);
220 * Destroy the winsys.
222 void (*destroy)(struct i915_winsys *iws);