diff options
author | Kenneth Graunke <kenneth@whitecape.org> | 2013-08-01 15:35:35 -0700 |
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committer | Kenneth Graunke <kenneth@whitecape.org> | 2013-08-16 19:00:49 -0700 |
commit | 76c2533470ec805fdb45592c72becd632d8bf6d4 (patch) | |
tree | 4fd2786ee22e2eddf20ba0f8cc26fa4eb7239310 /src/mesa/drivers/dri/i965/brw_object_purgeable.c | |
parent | aafb0f9e06a0e08ebb38a92ce2090739d380df71 (diff) |
i965: Move GL_APPLE_object_purgeable functionality into a new file.
GL_APPLE_object_purgeable creates a mechanism for marking OpenGL objects
as "purgeable" so they can be thrown away when system resources become
scarce. It specifically applies to buffer objects, textures, and
renderbuffers.
The intel_buffer_objects.c file provides core functionality for GL
buffer objects, such as MapBufferRange and CopyBufferSubData. Having
texture and renderbuffer functionality in that file is a bit strange.
The 2010 copyright on the new file is because Chris Wilson first added
this code in January 2010 (commit 755915fa).
v2: Actually remember to call the new dd table setup function.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_object_purgeable.c')
-rw-r--r-- | src/mesa/drivers/dri/i965/brw_object_purgeable.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_object_purgeable.c b/src/mesa/drivers/dri/i965/brw_object_purgeable.c new file mode 100644 index 00000000000..46304167b22 --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_object_purgeable.c @@ -0,0 +1,173 @@ +/* + * Copyright © 2010 Intel Corporation + * + * 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, sublicense, + * 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS 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. + */ + +/** + * @file brw_object_purgeable.c + * + * The driver implementation of the GL_APPLE_object_purgeable extension. + */ + +#include "main/imports.h" +#include "main/mtypes.h" +#include "main/macros.h" +#include "main/bufferobj.h" + +#include "brw_context.h" +#include "intel_buffer_objects.h" +#include "intel_fbo.h" +#include "intel_mipmap_tree.h" + +static GLenum +intel_buffer_purgeable(drm_intel_bo *buffer) +{ + int retained = 0; + + if (buffer != NULL) + retained = drm_intel_bo_madvise(buffer, I915_MADV_DONTNEED); + + return retained ? GL_VOLATILE_APPLE : GL_RELEASED_APPLE; +} + +static GLenum +intel_buffer_object_purgeable(struct gl_context * ctx, + struct gl_buffer_object *obj, + GLenum option) +{ + struct intel_buffer_object *intel_obj = intel_buffer_object(obj); + + if (intel_obj->buffer != NULL) + return intel_buffer_purgeable(intel_obj->buffer); + + if (option == GL_RELEASED_APPLE) { + return GL_RELEASED_APPLE; + } else { + /* XXX Create the buffer and madvise(MADV_DONTNEED)? */ + struct brw_context *brw = brw_context(ctx); + drm_intel_bo *bo = intel_bufferobj_buffer(brw, intel_obj, INTEL_READ); + + return intel_buffer_purgeable(bo); + } +} + +static GLenum +intel_texture_object_purgeable(struct gl_context * ctx, + struct gl_texture_object *obj, + GLenum option) +{ + struct intel_texture_object *intel; + + (void) ctx; + (void) option; + + intel = intel_texture_object(obj); + if (intel->mt == NULL || intel->mt->region == NULL) + return GL_RELEASED_APPLE; + + return intel_buffer_purgeable(intel->mt->region->bo); +} + +static GLenum +intel_render_object_purgeable(struct gl_context * ctx, + struct gl_renderbuffer *obj, + GLenum option) +{ + struct intel_renderbuffer *intel; + + (void) ctx; + (void) option; + + intel = intel_renderbuffer(obj); + if (intel->mt == NULL) + return GL_RELEASED_APPLE; + + return intel_buffer_purgeable(intel->mt->region->bo); +} + +static GLenum +intel_buffer_unpurgeable(drm_intel_bo *buffer) +{ + int retained; + + retained = 0; + if (buffer != NULL) + retained = drm_intel_bo_madvise(buffer, I915_MADV_WILLNEED); + + return retained ? GL_RETAINED_APPLE : GL_UNDEFINED_APPLE; +} + +static GLenum +intel_buffer_object_unpurgeable(struct gl_context * ctx, + struct gl_buffer_object *obj, + GLenum option) +{ + (void) ctx; + (void) option; + + return intel_buffer_unpurgeable(intel_buffer_object(obj)->buffer); +} + +static GLenum +intel_texture_object_unpurgeable(struct gl_context * ctx, + struct gl_texture_object *obj, + GLenum option) +{ + struct intel_texture_object *intel; + + (void) ctx; + (void) option; + + intel = intel_texture_object(obj); + if (intel->mt == NULL || intel->mt->region == NULL) + return GL_UNDEFINED_APPLE; + + return intel_buffer_unpurgeable(intel->mt->region->bo); +} + +static GLenum +intel_render_object_unpurgeable(struct gl_context * ctx, + struct gl_renderbuffer *obj, + GLenum option) +{ + struct intel_renderbuffer *intel; + + (void) ctx; + (void) option; + + intel = intel_renderbuffer(obj); + if (intel->mt == NULL) + return GL_UNDEFINED_APPLE; + + return intel_buffer_unpurgeable(intel->mt->region->bo); +} + +void +brw_init_object_purgeable_functions(struct dd_function_table *functions) +{ + functions->BufferObjectPurgeable = intel_buffer_object_purgeable; + functions->TextureObjectPurgeable = intel_texture_object_purgeable; + functions->RenderObjectPurgeable = intel_render_object_purgeable; + + functions->BufferObjectUnpurgeable = intel_buffer_object_unpurgeable; + functions->TextureObjectUnpurgeable = intel_texture_object_unpurgeable; + functions->RenderObjectUnpurgeable = intel_render_object_unpurgeable; +} |