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 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 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 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 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 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 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 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 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 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