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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2014 Intel Corporation All Rights Reserved.
*
* 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 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.
*
* Authors:
* Jason Ekstrand <jason.ekstrand@intel.com>
*/
#include "brw_blorp.h"
#include "brw_fbo.h"
#include "brw_tex.h"
#include "brw_blit.h"
#include "brw_mipmap_tree.h"
#include "main/formats.h"
#include "main/teximage.h"
#include "drivers/common/meta.h"
static void
copy_miptrees(struct brw_context *brw,
struct brw_mipmap_tree *src_mt,
int src_x, int src_y, int src_z, unsigned src_level,
struct brw_mipmap_tree *dst_mt,
int dst_x, int dst_y, int dst_z, unsigned dst_level,
int src_width, int src_height)
{
const struct gen_device_info *devinfo = &brw->screen->devinfo;
if (devinfo->gen <= 5) {
/* On gen4-5, try BLT first.
*
* Gen4-5 have a single ring for both 3D and BLT operations, so there's
* no inter-ring synchronization issues like on Gen6+. It is apparently
* faster than using the 3D pipeline. Original Gen4 also has to rebase
* and copy miptree slices in order to render to unaligned locations.
*/
if (brw_miptree_copy(brw, src_mt, src_level, src_z, src_x, src_y,
dst_mt, dst_level, dst_z, dst_x, dst_y,
src_width, src_height))
return;
}
brw_blorp_copy_miptrees(brw,
src_mt, src_level, src_z,
dst_mt, dst_level, dst_z,
src_x, src_y, dst_x, dst_y,
src_width, src_height);
}
static void
brw_copy_image_sub_data(struct gl_context *ctx,
struct gl_texture_image *src_image,
struct gl_renderbuffer *src_renderbuffer,
int src_x, int src_y, int src_z,
struct gl_texture_image *dst_image,
struct gl_renderbuffer *dst_renderbuffer,
int dst_x, int dst_y, int dst_z,
int src_width, int src_height)
{
struct brw_context *brw = brw_context(ctx);
struct brw_mipmap_tree *src_mt, *dst_mt;
unsigned src_level, dst_level;
if (src_image) {
src_mt = brw_texture_image(src_image)->mt;
src_level = src_image->Level + src_image->TexObject->Attrib.MinLevel;
/* Cube maps actually have different images per face */
if (src_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
src_z = src_image->Face;
src_z += src_image->TexObject->Attrib.MinLayer;
} else {
assert(src_renderbuffer);
src_mt = brw_renderbuffer(src_renderbuffer)->mt;
src_image = src_renderbuffer->TexImage;
src_level = 0;
}
if (dst_image) {
dst_mt = brw_texture_image(dst_image)->mt;
dst_level = dst_image->Level + dst_image->TexObject->Attrib.MinLevel;
/* Cube maps actually have different images per face */
if (dst_image->TexObject->Target == GL_TEXTURE_CUBE_MAP)
dst_z = dst_image->Face;
dst_z += dst_image->TexObject->Attrib.MinLayer;
} else {
assert(dst_renderbuffer);
dst_mt = brw_renderbuffer(dst_renderbuffer)->mt;
dst_image = dst_renderbuffer->TexImage;
dst_level = 0;
}
copy_miptrees(brw, src_mt, src_x, src_y, src_z, src_level,
dst_mt, dst_x, dst_y, dst_z, dst_level,
src_width, src_height);
/* CopyImage only works for equal formats, texture view equivalence
* classes, and a couple special cases for compressed textures.
*
* Notably, GL_DEPTH_STENCIL does not appear in any equivalence
* classes, so we know the formats must be the same, and thus both
* will either have stencil, or not. They can't be mismatched.
*/
assert((src_mt->stencil_mt != NULL) == (dst_mt->stencil_mt != NULL));
if (dst_mt->stencil_mt) {
copy_miptrees(brw, src_mt->stencil_mt, src_x, src_y, src_z, src_level,
dst_mt->stencil_mt, dst_x, dst_y, dst_z, dst_level,
src_width, src_height);
}
}
void
brw_init_copy_image_functions(struct dd_function_table *functions)
{
functions->CopyImageSubData = brw_copy_image_sub_data;
}
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