mirror of
https://github.com/opus-tango/IntroductionToVulkan.git
synced 2026-03-20 12:05:20 +00:00
Changed line endings from Windows (\r\n) to Linux (\n) style.
This commit is contained in:
Pawel Lapinski
@@ -1,158 +1,158 @@
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////////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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////////////////////////////////////////////////////////////////////////////////
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#include <cmath>
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#include <fstream>
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#include <iostream>
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#include "Tools.h"
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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namespace ApiWithoutSecrets {
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namespace Tools {
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// ************************************************************ //
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// GetBinaryFileContents //
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// //
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// Function reading binary contents of a file //
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// ************************************************************ //
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std::vector<char> GetBinaryFileContents( std::string const &filename ) {
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std::ifstream file( filename, std::ios::binary );
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if( file.fail() ) {
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std::cout << "Could not open \"" << filename << "\" file!" << std::endl;
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return std::vector<char>();
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}
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std::streampos begin, end;
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begin = file.tellg();
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file.seekg( 0, std::ios::end );
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end = file.tellg();
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std::vector<char> result( static_cast<size_t>(end - begin) );
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file.seekg( 0, std::ios::beg );
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file.read( &result[0], end - begin );
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file.close();
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return result;
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}
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// ************************************************************ //
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// GetImageData //
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// //
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// Function loading image (texture) data from a specified file //
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// ************************************************************ //
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std::vector<char> GetImageData( std::string const &filename, int requested_components, int *width, int *height, int *components, int *data_size ) {
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std::vector<char> file_data = Tools::GetBinaryFileContents( filename );
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if( file_data.size() == 0 ) {
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return std::vector<char>();
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}
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int tmp_width = 0, tmp_height = 0, tmp_components = 0;
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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 );
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if( (image_data == nullptr) ||
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(tmp_width <= 0) ||
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(tmp_height <= 0) ||
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(tmp_components <= 0) ) {
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std::cout << "Could not read image data!" << std::endl;
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return std::vector<char>();
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}
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int size = (tmp_width) * (tmp_height) * (requested_components <= 0 ? tmp_components : requested_components);
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if( data_size ) {
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*data_size = size;
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}
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if( width ) {
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*width = tmp_width;
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}
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if( height ) {
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*height = tmp_height;
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}
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if( components ) {
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*components = tmp_components;
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}
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std::vector<char> output(size);
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memcpy( &output[0], image_data, size );
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stbi_image_free( image_data );
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return output;
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}
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// ************************************************************ //
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// GetPerspectiveProjectionMatrix //
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// //
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// Function calculating perspective projection matrix //
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// ************************************************************ //
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std::array<float, 16> GetPerspectiveProjectionMatrix( float const aspect_ratio, float const field_of_view, float const near_clip, float const far_clip ) {
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float f = 1.0f / std::tan( field_of_view * 0.5f * 0.01745329251994329576923690768489f );
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return {
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f / aspect_ratio,
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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f,
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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(near_clip + far_clip) / (near_clip - far_clip),
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-1.0f,
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0.0f,
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0.0f,
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(2.0f * near_clip * far_clip) / (near_clip - far_clip),
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0.0f
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};
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}
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// ************************************************************ //
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// GetOrthographicsProjectionMatrix //
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// //
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// Function calculating orthographic projection matrix //
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// ************************************************************ //
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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 ) {
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return {
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2.0f / (right_plane - left_plane),
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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2.0f / (bottom_plane - top_plane),
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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-2.0f / (far_plane - near_plane),
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0.0f,
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-(right_plane + left_plane) / (right_plane - left_plane),
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-(bottom_plane + top_plane) / (bottom_plane - top_plane),
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-(far_plane + near_plane) / (far_plane - near_plane),
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1.0f
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};
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}
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} // namespace Tools
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////////////////////////////////////////////////////////////////////////////////
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// Copyright 2017 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy
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// of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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////////////////////////////////////////////////////////////////////////////////
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#include <cmath>
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#include <fstream>
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#include <iostream>
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#include "Tools.h"
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#define STB_IMAGE_IMPLEMENTATION
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#include "stb_image.h"
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namespace ApiWithoutSecrets {
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namespace Tools {
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// ************************************************************ //
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// GetBinaryFileContents //
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// //
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// Function reading binary contents of a file //
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// ************************************************************ //
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std::vector<char> GetBinaryFileContents( std::string const &filename ) {
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std::ifstream file( filename, std::ios::binary );
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if( file.fail() ) {
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std::cout << "Could not open \"" << filename << "\" file!" << std::endl;
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return std::vector<char>();
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}
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std::streampos begin, end;
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begin = file.tellg();
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file.seekg( 0, std::ios::end );
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end = file.tellg();
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std::vector<char> result( static_cast<size_t>(end - begin) );
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file.seekg( 0, std::ios::beg );
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file.read( &result[0], end - begin );
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file.close();
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return result;
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}
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// ************************************************************ //
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// GetImageData //
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// //
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// Function loading image (texture) data from a specified file //
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// ************************************************************ //
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std::vector<char> GetImageData( std::string const &filename, int requested_components, int *width, int *height, int *components, int *data_size ) {
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std::vector<char> file_data = Tools::GetBinaryFileContents( filename );
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if( file_data.size() == 0 ) {
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return std::vector<char>();
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}
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int tmp_width = 0, tmp_height = 0, tmp_components = 0;
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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 );
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if( (image_data == nullptr) ||
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(tmp_width <= 0) ||
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(tmp_height <= 0) ||
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(tmp_components <= 0) ) {
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std::cout << "Could not read image data!" << std::endl;
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return std::vector<char>();
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}
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int size = (tmp_width) * (tmp_height) * (requested_components <= 0 ? tmp_components : requested_components);
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if( data_size ) {
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*data_size = size;
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}
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if( width ) {
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*width = tmp_width;
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}
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if( height ) {
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*height = tmp_height;
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}
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if( components ) {
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*components = tmp_components;
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}
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std::vector<char> output(size);
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memcpy( &output[0], image_data, size );
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stbi_image_free( image_data );
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return output;
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}
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// ************************************************************ //
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// GetPerspectiveProjectionMatrix //
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// //
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// Function calculating perspective projection matrix //
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// ************************************************************ //
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std::array<float, 16> GetPerspectiveProjectionMatrix( float const aspect_ratio, float const field_of_view, float const near_clip, float const far_clip ) {
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float f = 1.0f / std::tan( field_of_view * 0.5f * 0.01745329251994329576923690768489f );
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return {
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f / aspect_ratio,
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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f,
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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(near_clip + far_clip) / (near_clip - far_clip),
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-1.0f,
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0.0f,
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0.0f,
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(2.0f * near_clip * far_clip) / (near_clip - far_clip),
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0.0f
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};
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}
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// ************************************************************ //
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// GetOrthographicsProjectionMatrix //
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// //
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// Function calculating orthographic projection matrix //
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// ************************************************************ //
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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 ) {
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return {
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2.0f / (right_plane - left_plane),
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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2.0f / (bottom_plane - top_plane),
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0.0f,
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0.0f,
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0.0f,
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0.0f,
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-2.0f / (far_plane - near_plane),
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0.0f,
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-(right_plane + left_plane) / (right_plane - left_plane),
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-(bottom_plane + top_plane) / (bottom_plane - top_plane),
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-(far_plane + near_plane) / (far_plane - near_plane),
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1.0f
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};
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}
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} // namespace Tools
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} // namespace ApiWithoutSecrets
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