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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 helper functions for resources.
#include "command_buffer/common/cross/resource.h"
namespace o3d {
namespace command_buffer {
namespace texture {
// Gets the number of bytes per block for a given format.
unsigned int GetBytesPerBlock(Format format) {
switch (format) {
case kXRGB8:
case kARGB8:
return 4;
case kABGR16F:
return 8;
case kDXT1:
return 8;
default:
LOG(FATAL) << "Invalid format";
return 1;
}
}
// Gets the width of a block for a given format.
unsigned int GetBlockSizeX(Format format) {
switch (format) {
case kXRGB8:
case kARGB8:
case kABGR16F:
return 1;
case kDXT1:
return 4;
default:
LOG(FATAL) << "Invalid format";
return 1;
}
}
// Gets the height of a block for a given format.
unsigned int GetBlockSizeY(Format format) {
// NOTE: currently only supported formats use square blocks.
return GetBlockSizeX(format);
}
} // namespace texture
namespace effect_param {
// Gets the size of the data of a given parameter type.
unsigned int GetDataSize(DataType type) {
switch (type) {
case kUnknown:
return 0;
case kFloat1:
return sizeof(float); // NOLINT
case kFloat2:
return sizeof(float) * 2; // NOLINT
case kFloat3:
return sizeof(float) * 3; // NOLINT
case kFloat4:
return sizeof(float) * 4; // NOLINT
case kMatrix4:
return sizeof(float) * 16; // NOLINT
case kInt:
return sizeof(int); // NOLINT
case kBool:
return sizeof(bool); // NOLINT
case kSampler:
return sizeof(ResourceId); // NOLINT
case kTexture:
return sizeof(ResourceId); // NOLINT
default:
LOG(FATAL) << "Invalid type.";
return 0;
}
}
} // namespace effect_param
} // namespace command_buffer
} // namespace o3d
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