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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// This file contains the implementation of the SamplerCB class.
#include "core/cross/precompile.h"
#include "core/cross/error.h"
#include "core/cross/command_buffer/sampler_cb.h"
#include "core/cross/command_buffer/renderer_cb.h"
#include "command_buffer/common/cross/cmd_buffer_format.h"
#include "command_buffer/client/cross/cmd_buffer_helper.h"
namespace o3d {
using command_buffer::CommandBufferEntry;
using command_buffer::CommandBufferHelper;
using command_buffer::ResourceId;
namespace sampler = command_buffer::sampler;
namespace {
sampler::AddressingMode AddressModeToCB(Sampler::AddressMode o3d_mode) {
switch (o3d_mode) {
case Sampler::WRAP:
return sampler::kWrap;
case Sampler::MIRROR:
return sampler::kMirrorRepeat;
case Sampler::CLAMP:
return sampler::kClampToEdge;
case Sampler::BORDER:
return sampler::kClampToBorder;
default:
DLOG(ERROR) << "Unknown Address mode " << static_cast<int>(o3d_mode);
return sampler::kWrap;
}
}
sampler::FilteringMode FilterTypeToCB(Sampler::FilterType o3d_mode) {
switch (o3d_mode) {
case Sampler::NONE:
return sampler::kNone;
case Sampler::POINT:
return sampler::kPoint;
case Sampler::LINEAR:
case Sampler::ANISOTROPIC:
return sampler::kLinear;
default:
return sampler::kNone;
}
}
} // anonymous namespace
SamplerCB::SamplerCB(ServiceLocator* service_locator, RendererCB* renderer)
: Sampler(service_locator),
renderer_(renderer) {
DCHECK(renderer_);
resource_id_ = renderer_->sampler_ids().AllocateID();
renderer_->helper()->CreateSampler(resource_id_);
}
SamplerCB::~SamplerCB() {
renderer_->helper()->DestroySampler(resource_id_);
renderer_->sampler_ids().FreeID(resource_id_);
}
void SamplerCB::SetTextureAndStates() {
CommandBufferHelper *helper = renderer_->helper();
sampler::AddressingMode address_mode_u_cb = AddressModeToCB(address_mode_u());
sampler::AddressingMode address_mode_v_cb = AddressModeToCB(address_mode_v());
sampler::AddressingMode address_mode_w_cb = AddressModeToCB(address_mode_w());
sampler::FilteringMode mag_filter_cb = FilterTypeToCB(mag_filter());
sampler::FilteringMode min_filter_cb = FilterTypeToCB(min_filter());
sampler::FilteringMode mip_filter_cb = FilterTypeToCB(mip_filter());
if (mag_filter_cb == sampler::kNone) mag_filter_cb = sampler::kPoint;
if (min_filter_cb == sampler::kNone) min_filter_cb = sampler::kPoint;
int max_max_anisotropy =
command_buffer::cmd::SetSamplerStates::MaxAnisotropy::kMask;
unsigned int max_anisotropy_cb =
std::max(1, std::min(max_max_anisotropy, max_anisotropy()));
if (min_filter() != Sampler::ANISOTROPIC) {
max_anisotropy_cb = 1;
}
helper->SetSamplerStates(
resource_id_,
address_mode_u_cb,
address_mode_v_cb,
address_mode_w_cb,
mag_filter_cb,
min_filter_cb,
mip_filter_cb,
max_anisotropy_cb);
Float4 color = border_color();
helper->SetSamplerBorderColor(resource_id_,
color[0], color[1], color[2], color[3]);
Texture *texture_object = texture();
if (!texture_object) {
texture_object = renderer_->error_texture();
if (!texture_object) {
O3D_ERROR(service_locator())
<< "Missing texture for sampler " << name();
texture_object = renderer_->fallback_error_texture();
}
}
if (texture_object) {
helper->SetSamplerTexture(
resource_id_,
reinterpret_cast<uint32>(texture_object->GetTextureHandle()));
}
}
} // namespace o3d
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