mirror of
https://github.com/opus-tango/IntroductionToVulkan.git
synced 2026-03-20 03:55:26 +00:00
Updated License to Apache 2.0
This commit is contained in:
codergirl42
@@ -1,152 +1,148 @@
|
||||
// Copyright 2016 Intel Corporation All Rights Reserved
|
||||
//
|
||||
// Intel makes no representations about the suitability of this software for any purpose.
|
||||
// THIS SOFTWARE IS PROVIDED ""AS IS."" INTEL SPECIFICALLY DISCLAIMS ALL WARRANTIES,
|
||||
// EXPRESS OR IMPLIED, AND ALL LIABILITY, INCLUDING CONSEQUENTIAL AND OTHER INDIRECT DAMAGES,
|
||||
// FOR THE USE OF THIS SOFTWARE, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY
|
||||
// RIGHTS, AND INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
||||
// Intel does not assume any responsibility for any errors which may appear in this software
|
||||
// nor any responsibility to update it.
|
||||
|
||||
#include <cmath>
|
||||
#include <fstream>
|
||||
#include <iostream>
|
||||
#include "Tools.h"
|
||||
#define STB_IMAGE_IMPLEMENTATION
|
||||
#include "stb_image.h"
|
||||
|
||||
namespace ApiWithoutSecrets {
|
||||
|
||||
namespace Tools {
|
||||
|
||||
// ************************************************************ //
|
||||
// GetBinaryFileContents //
|
||||
// //
|
||||
// Function reading binary contents of a file //
|
||||
// ************************************************************ //
|
||||
std::vector<char> GetBinaryFileContents( std::string const &filename ) {
|
||||
|
||||
std::ifstream file( filename, std::ios::binary );
|
||||
if( file.fail() ) {
|
||||
std::cout << "Could not open \"" << filename << "\" file!" << std::endl;
|
||||
return std::vector<char>();
|
||||
}
|
||||
|
||||
std::streampos begin, end;
|
||||
begin = file.tellg();
|
||||
file.seekg( 0, std::ios::end );
|
||||
end = file.tellg();
|
||||
|
||||
std::vector<char> result( static_cast<size_t>(end - begin) );
|
||||
file.seekg( 0, std::ios::beg );
|
||||
file.read( &result[0], end - begin );
|
||||
file.close();
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
// ************************************************************ //
|
||||
// GetImageData //
|
||||
// //
|
||||
// Function loading image (texture) data from a specified file //
|
||||
// ************************************************************ //
|
||||
std::vector<char> GetImageData( std::string const &filename, int requested_components, int *width, int *height, int *components, int *data_size ) {
|
||||
std::vector<char> file_data = Tools::GetBinaryFileContents( filename );
|
||||
if( file_data.size() == 0 ) {
|
||||
return std::vector<char>();
|
||||
}
|
||||
|
||||
int tmp_width = 0, tmp_height = 0, tmp_components = 0;
|
||||
unsigned char *image_data = stbi_load_from_memory( reinterpret_cast<unsigned char*>(&file_data[0]), static_cast<int>(file_data.size()), &tmp_width, &tmp_height, &tmp_components, requested_components );
|
||||
if( (image_data == nullptr) ||
|
||||
(tmp_width <= 0) ||
|
||||
(tmp_height <= 0) ||
|
||||
(tmp_components <= 0) ) {
|
||||
std::cout << "Could not read image data!" << std::endl;
|
||||
return std::vector<char>();
|
||||
}
|
||||
|
||||
int size = (tmp_width) * (tmp_height) * (requested_components <= 0 ? tmp_components : requested_components);
|
||||
if( data_size ) {
|
||||
*data_size = size;
|
||||
}
|
||||
if( width ) {
|
||||
*width = tmp_width;
|
||||
}
|
||||
if( height ) {
|
||||
*height = tmp_height;
|
||||
}
|
||||
if( components ) {
|
||||
*components = tmp_components;
|
||||
}
|
||||
|
||||
std::vector<char> output(size);
|
||||
memcpy( &output[0], image_data, size );
|
||||
|
||||
stbi_image_free( image_data );
|
||||
return output;
|
||||
}
|
||||
|
||||
// ************************************************************ //
|
||||
// GetPerspectiveProjectionMatrix //
|
||||
// //
|
||||
// Function calculating perspective projection matrix //
|
||||
// ************************************************************ //
|
||||
std::array<float, 16> GetPerspectiveProjectionMatrix( float const aspect_ratio, float const field_of_view, float const near_clip, float const far_clip ) {
|
||||
float f = 1.0f / std::tan( field_of_view * 0.5f * 0.01745329251994329576923690768489f );
|
||||
|
||||
return {
|
||||
f / aspect_ratio,
|
||||
0.0f,
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
f,
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
0.0f,
|
||||
(near_clip + far_clip) / (near_clip - far_clip),
|
||||
-1.0f,
|
||||
|
||||
0.0f,
|
||||
0.0f,
|
||||
(2.0f * near_clip * far_clip) / (near_clip - far_clip),
|
||||
0.0f
|
||||
};
|
||||
}
|
||||
|
||||
// ************************************************************ //
|
||||
// GetOrthographicsProjectionMatrix //
|
||||
// //
|
||||
// Function calculating orthographic projection matrix //
|
||||
// ************************************************************ //
|
||||
std::array<float, 16> GetOrthographicProjectionMatrix( float const left_plane, float const right_plane, float const top_plane, float const bottom_plane, float const near_plane, float const far_plane ) {
|
||||
return {
|
||||
2.0f / (right_plane - left_plane),
|
||||
0.0f,
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
2.0f / (bottom_plane - top_plane),
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
0.0f,
|
||||
-2.0f / (far_plane - near_plane),
|
||||
0.0f,
|
||||
|
||||
-(right_plane + left_plane) / (right_plane - left_plane),
|
||||
-(bottom_plane + top_plane) / (bottom_plane - top_plane),
|
||||
-(far_plane + near_plane) / (far_plane - near_plane),
|
||||
1.0f
|
||||
};
|
||||
}
|
||||
|
||||
} // namespace Tools
|
||||
|
||||
/////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Copyright 2017 Intel Corporation
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
/////////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
#include <cmath>
|
||||
#include <fstream>
|
||||
#include <iostream>
|
||||
#include "Tools.h"
|
||||
#define STB_IMAGE_IMPLEMENTATION
|
||||
#include "stb_image.h"
|
||||
|
||||
namespace ApiWithoutSecrets {
|
||||
|
||||
namespace Tools {
|
||||
|
||||
// ************************************************************ //
|
||||
// GetBinaryFileContents //
|
||||
// //
|
||||
// Function reading binary contents of a file //
|
||||
// ************************************************************ //
|
||||
std::vector<char> GetBinaryFileContents( std::string const &filename ) {
|
||||
|
||||
std::ifstream file( filename, std::ios::binary );
|
||||
if( file.fail() ) {
|
||||
std::cout << "Could not open \"" << filename << "\" file!" << std::endl;
|
||||
return std::vector<char>();
|
||||
}
|
||||
|
||||
std::streampos begin, end;
|
||||
begin = file.tellg();
|
||||
file.seekg( 0, std::ios::end );
|
||||
end = file.tellg();
|
||||
|
||||
std::vector<char> result( static_cast<size_t>(end - begin) );
|
||||
file.seekg( 0, std::ios::beg );
|
||||
file.read( &result[0], end - begin );
|
||||
file.close();
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
// ************************************************************ //
|
||||
// GetImageData //
|
||||
// //
|
||||
// Function loading image (texture) data from a specified file //
|
||||
// ************************************************************ //
|
||||
std::vector<char> GetImageData( std::string const &filename, int requested_components, int *width, int *height, int *components, int *data_size ) {
|
||||
std::vector<char> file_data = Tools::GetBinaryFileContents( filename );
|
||||
if( file_data.size() == 0 ) {
|
||||
return std::vector<char>();
|
||||
}
|
||||
|
||||
int tmp_width = 0, tmp_height = 0, tmp_components = 0;
|
||||
unsigned char *image_data = stbi_load_from_memory( reinterpret_cast<unsigned char*>(&file_data[0]), static_cast<int>(file_data.size()), &tmp_width, &tmp_height, &tmp_components, requested_components );
|
||||
if( (image_data == nullptr) ||
|
||||
(tmp_width <= 0) ||
|
||||
(tmp_height <= 0) ||
|
||||
(tmp_components <= 0) ) {
|
||||
std::cout << "Could not read image data!" << std::endl;
|
||||
return std::vector<char>();
|
||||
}
|
||||
|
||||
int size = (tmp_width) * (tmp_height) * (requested_components <= 0 ? tmp_components : requested_components);
|
||||
if( data_size ) {
|
||||
*data_size = size;
|
||||
}
|
||||
if( width ) {
|
||||
*width = tmp_width;
|
||||
}
|
||||
if( height ) {
|
||||
*height = tmp_height;
|
||||
}
|
||||
if( components ) {
|
||||
*components = tmp_components;
|
||||
}
|
||||
|
||||
std::vector<char> output(size);
|
||||
memcpy( &output[0], image_data, size );
|
||||
|
||||
stbi_image_free( image_data );
|
||||
return output;
|
||||
}
|
||||
|
||||
// ************************************************************ //
|
||||
// GetPerspectiveProjectionMatrix //
|
||||
// //
|
||||
// Function calculating perspective projection matrix //
|
||||
// ************************************************************ //
|
||||
std::array<float, 16> GetPerspectiveProjectionMatrix( float const aspect_ratio, float const field_of_view, float const near_clip, float const far_clip ) {
|
||||
float f = 1.0f / std::tan( field_of_view * 0.5f * 0.01745329251994329576923690768489f );
|
||||
|
||||
return {
|
||||
f / aspect_ratio,
|
||||
0.0f,
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
f,
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
0.0f,
|
||||
(near_clip + far_clip) / (near_clip - far_clip),
|
||||
-1.0f,
|
||||
|
||||
0.0f,
|
||||
0.0f,
|
||||
(2.0f * near_clip * far_clip) / (near_clip - far_clip),
|
||||
0.0f
|
||||
};
|
||||
}
|
||||
|
||||
// ************************************************************ //
|
||||
// GetOrthographicsProjectionMatrix //
|
||||
// //
|
||||
// Function calculating orthographic projection matrix //
|
||||
// ************************************************************ //
|
||||
std::array<float, 16> GetOrthographicProjectionMatrix( float const left_plane, float const right_plane, float const top_plane, float const bottom_plane, float const near_plane, float const far_plane ) {
|
||||
return {
|
||||
2.0f / (right_plane - left_plane),
|
||||
0.0f,
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
2.0f / (bottom_plane - top_plane),
|
||||
0.0f,
|
||||
0.0f,
|
||||
|
||||
0.0f,
|
||||
0.0f,
|
||||
-2.0f / (far_plane - near_plane),
|
||||
0.0f,
|
||||
|
||||
Reference in New Issue
Block a user