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/*
* 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(struct brw_bo *buffer)
{
int retained = 0;
if (buffer != NULL)
retained = brw_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)? */
return intel_buffer_purgeable(intel_obj->buffer);
}
}
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->bo == NULL)
return GL_RELEASED_APPLE;
return intel_buffer_purgeable(intel->mt->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->bo);
}
static int
intel_bo_unpurgeable(struct brw_bo *buffer)
{
int retained;
retained = 0;
if (buffer != NULL)
retained = brw_bo_madvise(buffer, I915_MADV_WILLNEED);
return retained;
}
static GLenum
intel_buffer_object_unpurgeable(struct gl_context * ctx,
struct gl_buffer_object *obj,
GLenum option)
{
struct intel_buffer_object *intel = intel_buffer_object(obj);
(void) ctx;
if (!intel->buffer)
return GL_UNDEFINED_APPLE;
if (option == GL_UNDEFINED_APPLE || !intel_bo_unpurgeable(intel->buffer)) {
brw_bo_unreference(intel->buffer);
intel->buffer = NULL;
return GL_UNDEFINED_APPLE;
}
return GL_RETAINED_APPLE;
}
static GLenum
intel_texture_object_unpurgeable(struct gl_context * ctx,
struct gl_texture_object *obj,
GLenum option)
{
struct intel_texture_object *intel;
(void) ctx;
intel = intel_texture_object(obj);
if (intel->mt == NULL || intel->mt->bo == NULL)
return GL_UNDEFINED_APPLE;
if (option == GL_UNDEFINED_APPLE || !intel_bo_unpurgeable(intel->mt->bo)) {
intel_miptree_release(&intel->mt);
return GL_UNDEFINED_APPLE;
}
return GL_RETAINED_APPLE;
}
static GLenum
intel_render_object_unpurgeable(struct gl_context * ctx,
struct gl_renderbuffer *obj,
GLenum option)
{
struct intel_renderbuffer *intel;
(void) ctx;
intel = intel_renderbuffer(obj);
if (intel->mt == NULL)
return GL_UNDEFINED_APPLE;
if (option == GL_UNDEFINED_APPLE || !intel_bo_unpurgeable(intel->mt->bo)) {
intel_miptree_release(&intel->mt);
return GL_UNDEFINED_APPLE;
}
return GL_RETAINED_APPLE;
}
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;
}
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