1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 /**
25 * @file brw_object_purgeable.c
26 *
27 * The driver implementation of the GL_APPLE_object_purgeable extension.
28 */
29
30 #include "main/imports.h"
31 #include "main/mtypes.h"
32 #include "main/macros.h"
33 #include "main/bufferobj.h"
34
35 #include "brw_context.h"
36 #include "intel_buffer_objects.h"
37 #include "intel_fbo.h"
38 #include "intel_mipmap_tree.h"
39
40 static GLenum
intel_buffer_purgeable(struct brw_bo * buffer)41 intel_buffer_purgeable(struct brw_bo *buffer)
42 {
43 int retained = 0;
44
45 if (buffer != NULL)
46 retained = brw_bo_madvise(buffer, I915_MADV_DONTNEED);
47
48 return retained ? GL_VOLATILE_APPLE : GL_RELEASED_APPLE;
49 }
50
51 static GLenum
intel_buffer_object_purgeable(struct gl_context * ctx,struct gl_buffer_object * obj,GLenum option)52 intel_buffer_object_purgeable(struct gl_context * ctx,
53 struct gl_buffer_object *obj,
54 GLenum option)
55 {
56 struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
57
58 if (intel_obj->buffer != NULL)
59 return intel_buffer_purgeable(intel_obj->buffer);
60
61 if (option == GL_RELEASED_APPLE) {
62 return GL_RELEASED_APPLE;
63 } else {
64 /* XXX Create the buffer and madvise(MADV_DONTNEED)? */
65 return intel_buffer_purgeable(intel_obj->buffer);
66 }
67 }
68
69 static GLenum
intel_texture_object_purgeable(struct gl_context * ctx,struct gl_texture_object * obj,GLenum option)70 intel_texture_object_purgeable(struct gl_context * ctx,
71 struct gl_texture_object *obj,
72 GLenum option)
73 {
74 struct intel_texture_object *intel;
75
76 (void) ctx;
77 (void) option;
78
79 intel = intel_texture_object(obj);
80 if (intel->mt == NULL || intel->mt->bo == NULL)
81 return GL_RELEASED_APPLE;
82
83 return intel_buffer_purgeable(intel->mt->bo);
84 }
85
86 static GLenum
intel_render_object_purgeable(struct gl_context * ctx,struct gl_renderbuffer * obj,GLenum option)87 intel_render_object_purgeable(struct gl_context * ctx,
88 struct gl_renderbuffer *obj,
89 GLenum option)
90 {
91 struct intel_renderbuffer *intel;
92
93 (void) ctx;
94 (void) option;
95
96 intel = intel_renderbuffer(obj);
97 if (intel->mt == NULL)
98 return GL_RELEASED_APPLE;
99
100 return intel_buffer_purgeable(intel->mt->bo);
101 }
102
103 static int
intel_bo_unpurgeable(struct brw_bo * buffer)104 intel_bo_unpurgeable(struct brw_bo *buffer)
105 {
106 int retained;
107
108 retained = 0;
109 if (buffer != NULL)
110 retained = brw_bo_madvise(buffer, I915_MADV_WILLNEED);
111
112 return retained;
113 }
114
115 static GLenum
intel_buffer_object_unpurgeable(struct gl_context * ctx,struct gl_buffer_object * obj,GLenum option)116 intel_buffer_object_unpurgeable(struct gl_context * ctx,
117 struct gl_buffer_object *obj,
118 GLenum option)
119 {
120 struct intel_buffer_object *intel = intel_buffer_object(obj);
121
122 (void) ctx;
123
124 if (!intel->buffer)
125 return GL_UNDEFINED_APPLE;
126
127 if (option == GL_UNDEFINED_APPLE || !intel_bo_unpurgeable(intel->buffer)) {
128 brw_bo_unreference(intel->buffer);
129 intel->buffer = NULL;
130 return GL_UNDEFINED_APPLE;
131 }
132
133 return GL_RETAINED_APPLE;
134 }
135
136 static GLenum
intel_texture_object_unpurgeable(struct gl_context * ctx,struct gl_texture_object * obj,GLenum option)137 intel_texture_object_unpurgeable(struct gl_context * ctx,
138 struct gl_texture_object *obj,
139 GLenum option)
140 {
141 struct intel_texture_object *intel;
142
143 (void) ctx;
144
145 intel = intel_texture_object(obj);
146 if (intel->mt == NULL || intel->mt->bo == NULL)
147 return GL_UNDEFINED_APPLE;
148
149 if (option == GL_UNDEFINED_APPLE || !intel_bo_unpurgeable(intel->mt->bo)) {
150 intel_miptree_release(&intel->mt);
151 return GL_UNDEFINED_APPLE;
152 }
153
154 return GL_RETAINED_APPLE;
155 }
156
157 static GLenum
intel_render_object_unpurgeable(struct gl_context * ctx,struct gl_renderbuffer * obj,GLenum option)158 intel_render_object_unpurgeable(struct gl_context * ctx,
159 struct gl_renderbuffer *obj,
160 GLenum option)
161 {
162 struct intel_renderbuffer *intel;
163
164 (void) ctx;
165
166 intel = intel_renderbuffer(obj);
167 if (intel->mt == NULL)
168 return GL_UNDEFINED_APPLE;
169
170 if (option == GL_UNDEFINED_APPLE || !intel_bo_unpurgeable(intel->mt->bo)) {
171 intel_miptree_release(&intel->mt);
172 return GL_UNDEFINED_APPLE;
173 }
174
175 return GL_RETAINED_APPLE;
176 }
177
178 void
brw_init_object_purgeable_functions(struct dd_function_table * functions)179 brw_init_object_purgeable_functions(struct dd_function_table *functions)
180 {
181 functions->BufferObjectPurgeable = intel_buffer_object_purgeable;
182 functions->TextureObjectPurgeable = intel_texture_object_purgeable;
183 functions->RenderObjectPurgeable = intel_render_object_purgeable;
184
185 functions->BufferObjectUnpurgeable = intel_buffer_object_unpurgeable;
186 functions->TextureObjectUnpurgeable = intel_texture_object_unpurgeable;
187 functions->RenderObjectUnpurgeable = intel_render_object_unpurgeable;
188 }
189