s444341/Projekt_Grafika
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wojtek #1

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s444341 merged 3 commits from wojtek into master 2021-02-01 10:03:12 +01:00
Conversation 0 Commits 3 Files Changed 60 +502929 -42
60 changed files with 502929 additions and 42 deletions
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<?xml version="1.0" encoding="utf-8"?>
<Project>
<ProjectOutputs>D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\grk-cw8.exe</ProjectOutputs>
<ProjectOutputs>D:\Studia\grk\Projekt_Grafika\Debug\grk-cw8.exe</ProjectOutputs>
<ContentFiles></ContentFiles>
<SatelliteDlls></SatelliteDlls>
<NonRecipeFileRefs></NonRecipeFileRefs>

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Camera.obj : warning LNK4075: zignorowano opcję „/EDITANDCONTINUE” z powodu określenia opcji „/INCREMENTAL:NO”
PhysXExtensions_static_32.lib(ExtCpuWorkerThread.obj) : warning LNK4099: nie znaleziono pliku PDB „PhysXExtensions_static_32.pdb” z elementem „PhysXExtensions_static_32.lib(ExtCpuWorkerThread.obj)” lub w pozycji „D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb”; obiekt zostanie skonsolidowany bez informacji debugowania
PhysXExtensions_static_32.lib(ExtDefaultCpuDispatcher.obj) : warning LNK4099: nie znaleziono pliku PDB „PhysXExtensions_static_32.pdb” z elementem „PhysXExtensions_static_32.lib(ExtDefaultCpuDispatcher.obj)” lub w pozycji „D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb”; obiekt zostanie skonsolidowany bez informacji debugowania
PhysXExtensions_static_32.lib(ExtDefaultErrorCallback.obj) : warning LNK4099: nie znaleziono pliku PDB „PhysXExtensions_static_32.pdb” z elementem „PhysXExtensions_static_32.lib(ExtDefaultErrorCallback.obj)” lub w pozycji „D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb”; obiekt zostanie skonsolidowany bez informacji debugowania
PhysXExtensions_static_32.lib(ExtDefaultSimulationFilterShader.obj) : warning LNK4099: nie znaleziono pliku PDB „PhysXExtensions_static_32.pdb” z elementem „PhysXExtensions_static_32.lib(ExtDefaultSimulationFilterShader.obj)” lub w pozycji „D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb”; obiekt zostanie skonsolidowany bez informacji debugowania
grk-cw8.vcxproj -> D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\grk-cw8.exe
 main_8_1.cpp
Skybox.cpp
Generating Code...
Camera.obj : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/INCREMENTAL:NO' specification
PhysXExtensions_static_32.lib(ExtCpuWorkerThread.obj) : warning LNK4099: PDB 'PhysXExtensions_static_32.pdb' was not found with 'PhysXExtensions_static_32.lib(ExtCpuWorkerThread.obj)' or at 'D:\Studia\grk\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb'; linking object as if no debug info
PhysXExtensions_static_32.lib(ExtDefaultCpuDispatcher.obj) : warning LNK4099: PDB 'PhysXExtensions_static_32.pdb' was not found with 'PhysXExtensions_static_32.lib(ExtDefaultCpuDispatcher.obj)' or at 'D:\Studia\grk\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb'; linking object as if no debug info
PhysXExtensions_static_32.lib(ExtDefaultErrorCallback.obj) : warning LNK4099: PDB 'PhysXExtensions_static_32.pdb' was not found with 'PhysXExtensions_static_32.lib(ExtDefaultErrorCallback.obj)' or at 'D:\Studia\grk\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb'; linking object as if no debug info
PhysXExtensions_static_32.lib(ExtDefaultSimulationFilterShader.obj) : warning LNK4099: PDB 'PhysXExtensions_static_32.pdb' was not found with 'PhysXExtensions_static_32.lib(ExtDefaultSimulationFilterShader.obj)' or at 'D:\Studia\grk\Projekt_Grafika\Debug\PhysXExtensions_static_32.pdb'; linking object as if no debug info
grk-cw8.vcxproj -> D:\Studia\grk\Projekt_Grafika\Debug\grk-cw8.exe

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PlatformToolSet=v142:VCToolArchitecture=Native32Bit:VCToolsVersion=14.27.29110:TargetPlatformVersion=10.0.18362.0:
Debug|Win32|D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\|
PlatformToolSet=v142:VCToolArchitecture=Native32Bit:VCToolsVersion=14.27.29110:TargetPlatformVersion=10.0.17763.0:
Debug|Win32|D:\Studia\grk\Projekt_Grafika\|

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D:\Documents\2020\studia\s3e1\grafika\grk-cw8\Debug\grk-cw8.pdb
D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\grk-cw8.exe
D:\Documents\2020\studia\s3e1\grafika\Projekt_Grafika\Debug\grk-cw8.pdb
D:\Studia\grk\Projekt_Grafika\Debug\grk-cw8.exe
D:\Studia\grk\Projekt_Grafika\Debug\grk-cw8.pdb

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</ItemGroup>
<ItemGroup>
<ClCompile Include="src\Camera.cpp" />
<ClCompile Include="src\main_8_1.cpp" />
<ClCompile Include="src\Physics.cpp" />
<ClCompile Include="src\Render_Utils.cpp" />
<ClCompile Include="src\Shader_Loader.cpp" />
<ClCompile Include="src\Skybox.cpp" />
<ClCompile Include="src\SOIL\image_DXT.c" />
<ClCompile Include="src\SOIL\image_helper.c" />
<ClCompile Include="src\SOIL\SOIL.c" />
<ClCompile Include="src\SOIL\stb_image_aug.c" />
<ClCompile Include="src\start.cpp" />
<ClCompile Include="src\Texture.cpp" />
</ItemGroup>
<ItemGroup>

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<ClCompile Include="src\Physics.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\start.cpp">
<ClCompile Include="src\main_8_1.cpp">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\Skybox.cpp">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>

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# www.blender.org
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vn 0.0000 0.0000 -1.0000
usemtl None
s off
f 1/1/1 2/2/1 4/3/1 3/4/1
f 3/4/2 4/3/2 8/5/2 7/6/2
f 7/6/3 8/5/3 6/7/3 5/8/3
f 5/8/4 6/7/4 2/9/4 1/10/4
f 3/11/5 7/6/5 5/8/5 1/12/5
f 6/7/6 8/5/6 12/13/6 11/14/6
f 12/13/7 10/15/7 9/16/7 11/14/7
f 4/3/8 2/2/8 9/17/8 10/18/8
f 2/9/9 6/7/9 11/14/9 9/19/9
f 8/5/10 4/3/10 10/18/10 12/13/10
o Kostka.004_Kostka.003
v -0.969376 1.369067 -14.278819
v -0.969376 2.585751 -15.931281
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v -0.969376 2.585751 -16.278820
v 1.030624 1.369067 -14.278819
v 1.030624 2.585751 -15.931281
v 1.030624 1.369067 -16.278820
v 1.030624 2.585751 -16.278820
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.375000 0.250000
vt 0.625000 0.500000
vt 0.375000 0.500000
vt 0.625000 0.750000
vt 0.375000 0.750000
vt 0.625000 1.000000
vt 0.375000 1.000000
vt 0.125000 0.500000
vt 0.125000 0.750000
vt 0.875000 0.500000
vt 0.875000 0.750000
vn -1.0000 0.0000 0.0000
vn 0.0000 0.0000 -1.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 0.8053 0.5929
vn 0.0000 -1.0000 0.0000
vn 0.0000 1.0000 0.0000
usemtl None
s off
f 13/20/11 14/21/11 16/22/11 15/23/11
f 15/23/12 16/22/12 20/24/12 19/25/12
f 19/25/13 20/24/13 18/26/13 17/27/13
f 17/27/14 18/26/14 14/28/14 13/29/14
f 15/30/15 19/25/15 17/27/15 13/31/15
f 20/24/16 16/32/16 14/33/16 18/26/16

205
models/platform_2.obj Normal file
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@ -0,0 +1,205 @@
# Blender v2.91.2 OBJ File: 'starting_site_2.blend'
# www.blender.org
mtllib platform_2.mtl
o Kostka.009_Kostka.013
v -49.969376 -2.805061 50.006348
v -49.187107 -0.070366 49.224083
v -49.969376 -2.805061 -49.993652
v -49.187107 -0.070366 -49.211380
v 50.030624 -2.805061 50.006348
v 49.248356 -0.070366 49.224083
v 50.030624 -2.805061 -49.993652
v 49.248356 -0.070366 -49.211380
v -49.187107 1.791470 49.224083
v -49.187107 1.791470 -49.211380
v 49.248356 1.791470 49.224083
v 49.248356 1.791470 -49.211380
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.375000 0.250000
vt 0.625000 0.500000
vt 0.375000 0.500000
vt 0.625000 0.750000
vt 0.375000 0.750000
vt 0.625000 1.000000
vt 0.375000 1.000000
vt 0.125000 0.500000
vt 0.125000 0.750000
vt 0.625000 0.500000
vt 0.625000 0.750000
vt 0.875000 0.500000
vt 0.875000 0.750000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.625000 1.000000
vn -0.9614 0.2750 0.0000
vn 0.0000 0.2750 -0.9614
vn 0.9614 0.2750 0.0000
vn 0.0000 0.2750 0.9614
vn 0.0000 -1.0000 0.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 1.0000 0.0000
vn -1.0000 0.0000 0.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 0.0000 -1.0000
usemtl None
s off
f 1/1/1 2/2/1 4/3/1 3/4/1
f 3/4/2 4/3/2 8/5/2 7/6/2
f 7/6/3 8/5/3 6/7/3 5/8/3
f 5/8/4 6/7/4 2/9/4 1/10/4
f 3/11/5 7/6/5 5/8/5 1/12/5
f 6/7/6 8/5/6 12/13/6 11/14/6
f 12/13/7 10/15/7 9/16/7 11/14/7
f 4/3/8 2/2/8 9/17/8 10/18/8
f 2/9/9 6/7/9 11/14/9 9/19/9
f 8/5/10 4/3/10 10/18/10 12/13/10
o Kostka.002_Kostka.027
v -2.969376 1.555083 7.509674
v -2.969376 30.188183 7.509674
v -2.969376 1.555083 5.493874
v -2.969376 30.188183 5.493874
v 3.030624 1.555083 7.509674
v 3.030624 30.188183 7.509674
v 3.030624 1.555083 5.493874
v 3.030624 30.188183 5.493874
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.375000 0.250000
vt 0.625000 0.500000
vt 0.375000 0.500000
vt 0.625000 0.750000
vt 0.375000 0.750000
vt 0.625000 1.000000
vt 0.375000 1.000000
vt 0.125000 0.500000
vt 0.125000 0.750000
vt 0.875000 0.500000
vt 0.875000 0.750000
vn -1.0000 0.0000 0.0000
vn 0.0000 0.0000 -1.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 -1.0000 0.0000
vn 0.0000 1.0000 0.0000
usemtl None
s off
f 13/20/11 14/21/11 16/22/11 15/23/11
f 15/23/12 16/22/12 20/24/12 19/25/12
f 19/25/13 20/24/13 18/26/13 17/27/13
f 17/27/14 18/26/14 14/28/14 13/29/14
f 15/30/15 19/25/15 17/27/15 13/31/15
f 20/24/16 16/32/16 14/33/16 18/26/16
o Kostka
v -0.162833 15.989394 6.133174
v -0.162833 16.658024 6.133174
v -0.162833 15.989394 0.976624
v -0.162833 16.658024 0.976624
v 0.224081 15.989394 6.133174
v 0.224081 16.658024 6.133174
v 0.224081 15.989394 0.976624
v 0.224081 16.658024 0.976624
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.375000 0.250000
vt 0.625000 0.500000
vt 0.375000 0.500000
vt 0.625000 0.750000
vt 0.375000 0.750000
vt 0.625000 1.000000
vt 0.375000 1.000000
vt 0.125000 0.500000
vt 0.125000 0.750000
vt 0.875000 0.500000
vt 0.875000 0.750000
vn -1.0000 0.0000 0.0000
vn 0.0000 0.0000 -1.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 -1.0000 0.0000
vn 0.0000 1.0000 0.0000
usemtl None
s off
f 21/34/17 22/35/17 24/36/17 23/37/17
f 23/37/18 24/36/18 28/38/18 27/39/18
f 27/39/19 28/38/19 26/40/19 25/41/19
f 25/41/20 26/40/20 22/42/20 21/43/20
f 23/44/21 27/39/21 25/41/21 21/45/21
f 28/38/22 24/46/22 22/47/22 26/40/22
o Kostka.001
v -0.162833 14.651886 6.133174
v -0.162833 15.320517 6.133174
v -0.162833 14.651886 0.976624
v -0.162833 15.320517 0.976624
v 0.224081 14.651886 6.133174
v 0.224081 15.320517 6.133174
v 0.224081 14.651886 0.976624
v 0.224081 15.320517 0.976624
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.375000 0.250000
vt 0.625000 0.500000
vt 0.375000 0.500000
vt 0.625000 0.750000
vt 0.375000 0.750000
vt 0.625000 1.000000
vt 0.375000 1.000000
vt 0.125000 0.500000
vt 0.125000 0.750000
vt 0.875000 0.500000
vt 0.875000 0.750000
vn -1.0000 0.0000 0.0000
vn 0.0000 0.0000 -1.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 -1.0000 0.0000
vn 0.0000 1.0000 0.0000
usemtl None
s off
f 29/48/23 30/49/23 32/50/23 31/51/23
f 31/51/24 32/50/24 36/52/24 35/53/24
f 35/53/25 36/52/25 34/54/25 33/55/25
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f 31/58/27 35/53/27 33/55/27 29/59/27
f 36/52/28 32/60/28 30/61/28 34/54/28
o Kostka.003_Kostka.002
v -0.162833 13.285920 6.133174
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v 0.224081 13.285920 6.133174
v 0.224081 13.954551 6.133174
v 0.224081 13.285920 0.976624
v 0.224081 13.954551 0.976624
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.625000 0.250000
vt 0.375000 0.250000
vt 0.625000 0.500000
vt 0.375000 0.500000
vt 0.625000 0.750000
vt 0.375000 0.750000
vt 0.625000 1.000000
vt 0.375000 1.000000
vt 0.125000 0.500000
vt 0.125000 0.750000
vt 0.875000 0.500000
vt 0.875000 0.750000
vn -1.0000 0.0000 0.0000
vn 0.0000 0.0000 -1.0000
vn 1.0000 0.0000 0.0000
vn 0.0000 0.0000 1.0000
vn 0.0000 -1.0000 0.0000
vn 0.0000 1.0000 0.0000
usemtl None
s off
f 37/62/29 38/63/29 40/64/29 39/65/29
f 39/65/30 40/64/30 44/66/30 43/67/30
f 43/67/31 44/66/31 42/68/31 41/69/31
f 41/69/32 42/68/32 38/70/32 37/71/32
f 39/72/33 43/67/33 41/69/33 37/73/33
f 44/66/34 40/74/34 38/75/34 42/68/34

184320
models/rakieta_saturn.obj Normal file
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142509
models/rocket.obj Normal file
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models/saturn-v.obj Normal file
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11
shaders/shader_skybox.frag Normal file
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#version 430 core
out vec4 FragColor;
in vec3 TexCoords;
uniform samplerCube skybox;
void main()
{
gl_FragColor = texture(skybox, TexCoords);
}

14
shaders/shader_skybox.vert Normal file
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@ -0,0 +1,14 @@
#version 430 core
layout (location = 0) in vec3 aPos;
out vec3 TexCoords;
uniform mat4 projection;
uniform mat4 view;
void main()
{
TexCoords = aPos;
vec4 pos = projection * view * vec4(aPos, 1.0);
gl_Position = pos.xyww;
}

4
shaders/shader_tex.frag
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@ -1,13 +1,15 @@
#version 430 core
uniform sampler2D textureSampler;
uniform vec3 lightDir;
//uniform vec3 lightDir;
uniform vec3 lightPos;
in vec3 interpNormal;
in vec2 interpTexCoord;
void main()
{
vec3 lightDir = normalize(-lightPos);
vec2 modifiedTexCoord = vec2(interpTexCoord.x, 1.0 - interpTexCoord.y); // Poprawka dla tekstur Ziemi, ktore bez tego wyswietlaja sie 'do gory nogami'
vec3 color = texture2D(textureSampler, modifiedTexCoord).rgb;
vec3 normal = normalize(interpNormal);

113
src/Skybox.cpp Normal file
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@ -0,0 +1,113 @@
#include "Skybox.h"
#include <vector>
#include <iostream>
#include "glew.h"
#include "freeglut.h"
#include "glm.hpp"
#include "ext.hpp"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
static GLuint skyboxVAO, skyboxVBO;
float skyboxVertices[] = {
// positions
-10.0f, 10.0f, -10.0f,
-10.0f, -10.0f, -10.0f,
10.0f, -10.0f, -10.0f,
10.0f, -10.0f, -10.0f,
10.0f, 10.0f, -10.0f,
-10.0f, 10.0f, -10.0f,
-10.0f, -10.0f, 10.0f,
-10.0f, -10.0f, -10.0f,
-10.0f, 10.0f, -10.0f,
-10.0f, 10.0f, -10.0f,
-10.0f, 10.0f, 10.0f,
-10.0f, -10.0f, 10.0f,
10.0f, -10.0f, -10.0f,
10.0f, -10.0f, 10.0f,
10.0f, 10.0f, 10.0f,
10.0f, 10.0f, 10.0f,
10.0f, 10.0f, -10.0f,
10.0f, -10.0f, -10.0f,
-10.0f, -10.0f, 10.0f,
-10.0f, 10.0f, 10.0f,
10.0f, 10.0f, 10.0f,
10.0f, 10.0f, 10.0f,
10.0f, -10.0f, 10.0f,
-10.0f, -10.0f, 10.0f,
-10.0f, 10.0f, -10.0f,
10.0f, 10.0f, -10.0f,
10.0f, 10.0f, 10.0f,
10.0f, 10.0f, 10.0f,
-10.0f, 10.0f, 10.0f,
-10.0f, 10.0f, -10.0f,
-10.0f, -10.0f, -10.0f,
-10.0f, -10.0f, 10.0f,
10.0f, -10.0f, -10.0f,
10.0f, -10.0f, -10.0f,
-10.0f, -10.0f, 10.0f,
10.0f, -10.0f, 10.0f
};
unsigned int Skybox::loadCubemap(std::vector<std::string> faces)
{
unsigned int textureID;
glGenTextures(1, &textureID);
glBindTexture(GL_TEXTURE_CUBE_MAP, textureID);
int width, height, nrChannels;
for (unsigned int i = 0; i < faces.size(); i++)
{
unsigned char* data = stbi_load(faces[i].c_str(), &width , &height, &nrChannels, 0);
if (data)
{
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i,
0, GL_RGB, width , height , 0, GL_RGB, GL_UNSIGNED_BYTE, data
);
stbi_image_free(data);
}
else
{
std::cout << "Cubemap tex failed to load at path: " << faces[i] << std::endl;
stbi_image_free(data);
}
}
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
return textureID;
}
void Skybox::drawSkybox(GLuint program, glm::mat4 cameraMatrix, glm::mat4 perspectiveMatrix, GLuint texture)
{
glUseProgram(program);
glDepthFunc(GL_LEQUAL);
glGenVertexArrays(1, &skyboxVAO);
glGenBuffers(1, &skyboxVBO);
glBindVertexArray(skyboxVAO);
glBindBuffer(GL_ARRAY_BUFFER, skyboxVBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(skyboxVertices), &skyboxVertices, GL_STATIC_DRAW);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
glEnableVertexAttribArray(0);
glm::mat4 view = glm::mat4(glm::mat3(cameraMatrix));
glUniformMatrix4fv(glGetUniformLocation(program, "projection"), 1, GL_FALSE, (float*)&perspectiveMatrix);
glUniformMatrix4fv(glGetUniformLocation(program, "view"), 1, GL_FALSE, (float*)&view);
glBindVertexArray(skyboxVAO);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_CUBE_MAP, texture);
glDrawArrays(GL_TRIANGLES, 0, 36);
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glDeleteBuffers(1, &skyboxVBO);
glDeleteVertexArrays(1, &skyboxVAO);
glDepthFunc(GL_LESS);
glUseProgram(0);
}

17
src/Skybox.h Normal file
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@ -0,0 +1,17 @@
#pragma once
#include <vector>
#include <iostream>
#include "glew.h"
#include "freeglut.h"
#include "glm.hpp"
#include "ext.hpp"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
class Skybox
{
private:
public:
unsigned static int loadCubemap(std::vector<std::string> faces);
static void drawSkybox(GLuint program, glm::mat4 cameraMatrix, glm::mat4 perspectiveMatrix, GLuint texture);
};

296
src/main_8_1.cpp Normal file
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@ -0,0 +1,296 @@
#include "glew.h"
#include "freeglut.h"
#include "glm.hpp"
#include "ext.hpp"
#include <iostream>
#include <cmath>
#include <vector>
#include "Shader_Loader.h"
#include "Render_Utils.h"
#include "Camera.h"
#include "Texture.h"
#include "Physics.h"
#include "Skybox.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
Core::Shader_Loader shaderLoader;
GLuint programColor;
GLuint programTexture;
GLuint programSkybox;
GLuint cubemapTexture;
GLuint skyboxVAO, skyboxVBO;
obj::Model planeModel;
obj::Model boxModel;
obj::Model shipModel;
obj::Model boosterModel;
obj::Model platformModel;
obj::Model craneModel;
obj::Model lampModel;
glm::mat4 boxModelMatrix;
GLuint boxTexture, groundTexture, shipTexture, stoneTexture, redTex;
Core::RenderContext planeContext, boxContext, shipContext, boosterContext, platformContext, craneContext, lampContext;
glm::vec3 cameraPos = glm::vec3(0, 10, 25);
glm::vec3 cameraDir;
glm::vec3 cameraSide;
float cameraAngle = 0;
glm::mat4 cameraMatrix, perspectiveMatrix;
glm::vec3 lightDir = glm::normalize(glm::vec3(0.5, -1, -0.5));
glm::vec3 lightPos = glm::vec3(-15.75, 2, 0);
// Initalization of physical scene (PhysX)
Physics pxScene(9.8f /* gravity (m/s^2) */);
// fixed timestep for stable and deterministic simulation
const double physicsStepTime = 1.f / 60.f;
double physicsTimeToProcess = 0;
// physical objects
PxRigidStatic *planeBody = nullptr;
PxMaterial *planeMaterial = nullptr;
PxRigidDynamic *boxBody = nullptr;
PxMaterial *boxMaterial = nullptr;
std::vector<std::string> faces
{
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
};
void initRenderables()
{
// load models
planeModel = obj::loadModelFromFile("models/plane.obj");
boxModel = obj::loadModelFromFile("models/box.obj");
shipModel = obj::loadModelFromFile("models/ship.obj");
boosterModel = obj::loadModelFromFile("models/booster.obj");
platformModel = obj::loadModelFromFile("models/platform4.obj");
craneModel = obj::loadModelFromFile("models/crane.obj");
lampModel = obj::loadModelFromFile("models/lamp2.obj");
// load textures
groundTexture = Core::LoadTexture("textures/sand.jpg");
boxTexture = Core::LoadTexture("textures/a.jpg");
shipTexture = Core::LoadTexture("textures/ship.png");
stoneTexture = Core::LoadTexture("textures/stone.png");
redTex = Core::LoadTexture("textures/redTex.png");
planeContext.initFromOBJ(planeModel);
boxContext.initFromOBJ(boxModel);
shipContext.initFromOBJ(shipModel);
boosterContext.initFromOBJ(boosterModel);
platformContext.initFromOBJ(platformModel);
craneContext.initFromOBJ(craneModel);
lampContext.initFromOBJ(lampModel);
}
void initPhysicsScene()
{
}
void updateTransforms()
{
// Here we retrieve the current transforms of the objects from the physical simulation.
auto actorFlags = PxActorTypeFlag::eRIGID_DYNAMIC | PxActorTypeFlag::eRIGID_STATIC;
PxU32 nbActors = pxScene.scene->getNbActors(actorFlags);
if (nbActors)
{
std::vector<PxRigidActor*> actors(nbActors);
pxScene.scene->getActors(actorFlags, (PxActor**)&actors[0], nbActors);
for (auto actor : actors)
{
// We use the userData of the objects to set up the proper model matrices.
if (!actor->userData) continue;
glm::mat4 *modelMatrix = (glm::mat4*)actor->userData;
// get world matrix of the object (actor)
PxMat44 transform = actor->getGlobalPose();
auto &c0 = transform.column0;
auto &c1 = transform.column1;
auto &c2 = transform.column2;
auto &c3 = transform.column3;
// set up the model matrix used for the rendering
*modelMatrix = glm::mat4(
c0.x, c0.y, c0.z, c0.w,
c1.x, c1.y, c1.z, c1.w,
c2.x, c2.y, c2.z, c2.w,
c3.x, c3.y, c3.z, c3.w);
}
}
}
void keyboard(unsigned char key, int x, int y)
{
float angleSpeed = 0.1f;
float moveSpeed = 0.5f;
switch (key)
{
case 'z': cameraAngle -= angleSpeed; break;
case 'x': cameraAngle += angleSpeed; break;
case 'w': cameraPos += cameraDir * moveSpeed; break;
case 's': cameraPos -= cameraDir * moveSpeed; break;
case 'd': cameraPos += cameraSide * moveSpeed; break;
case 'a': cameraPos -= cameraSide * moveSpeed; break;
case 'e': cameraPos += glm::cross(cameraDir, glm::vec3(1, 0, 0)) * moveSpeed; break;
case 'q': cameraPos -= glm::cross(cameraDir, glm::vec3(1, 0, 0)) * moveSpeed; break;
}
}
void mouse(int x, int y)
{
}
glm::mat4 createCameraMatrix()
{
cameraDir = glm::normalize(glm::vec3(cosf(cameraAngle - glm::radians(90.0f)), 0, sinf(cameraAngle - glm::radians(90.0f))));
glm::vec3 up = glm::vec3(0, 1, 0);
cameraSide = glm::cross(cameraDir, up);
return Core::createViewMatrix(cameraPos, cameraDir, up);
}
void drawObjectColor(Core::RenderContext context, glm::mat4 modelMatrix, glm::vec3 color)
{
GLuint program = programColor;
glUseProgram(program);
glUniform3f(glGetUniformLocation(program, "objectColor"), color.x, color.y, color.z);
glUniform3f(glGetUniformLocation(program, "lightDir"), lightDir.x, lightDir.y, lightDir.z);
glm::mat4 transformation = perspectiveMatrix * cameraMatrix * modelMatrix;
glUniformMatrix4fv(glGetUniformLocation(program, "modelViewProjectionMatrix"), 1, GL_FALSE, (float*)&transformation);
glUniformMatrix4fv(glGetUniformLocation(program, "modelMatrix"), 1, GL_FALSE, (float*)&modelMatrix);
Core::DrawContext(context);
glUseProgram(0);
}
void drawObjectTexture(Core::RenderContext context, glm::mat4 modelMatrix, GLuint textureId)
{
GLuint program = programTexture;
glUseProgram(program);
glUniform3f(glGetUniformLocation(program, "lightDir"), lightDir.x, lightDir.y, lightDir.z);
glUniform3f(glGetUniformLocation(program, "lightPos"), lightPos.x, lightPos.y, lightPos.z);
Core::SetActiveTexture(textureId, "textureSampler", program, 0);
glm::mat4 transformation = perspectiveMatrix * cameraMatrix * modelMatrix;
glUniformMatrix4fv(glGetUniformLocation(program, "modelViewProjectionMatrix"), 1, GL_FALSE, (float*)&transformation);
glUniformMatrix4fv(glGetUniformLocation(program, "modelMatrix"), 1, GL_FALSE, (float*)&modelMatrix);
Core::DrawContext(context);
glUseProgram(0);
}
void renderScene()
{
double time = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
static double prevTime = time;
double dtime = time - prevTime;
prevTime = time;
// Update physics
if (dtime < 1.f) {
physicsTimeToProcess += dtime;
while (physicsTimeToProcess > 0) {
// here we perform the physics simulation step
pxScene.step(physicsStepTime);
physicsTimeToProcess -= physicsStepTime;
}
}
// Update of camera and perspective matrices
cameraMatrix = createCameraMatrix();
perspectiveMatrix = Core::createPerspectiveMatrix(0.1f, 1000.f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(0.0f, 0.1f, 0.3f, 1.0f);
glUseProgram(programTexture);
// Drawing skybox
Skybox::drawSkybox(programSkybox, cameraMatrix, perspectiveMatrix, cubemapTexture);
glUniform3f(glGetUniformLocation(programTexture, "lightPos"), 0, 0, 0);
// update transforms from physics simulation
updateTransforms();
// render models
drawObjectTexture(planeContext, glm::translate(glm::vec3(0, 0, 0)), groundTexture);
drawObjectTexture(shipContext, glm::translate(glm::vec3(0,3,0)), shipTexture); // boxModelMatrix was updated in updateTransforms()
drawObjectTexture(boosterContext, glm::translate(glm::vec3(0, 3, 0)), shipTexture);
drawObjectTexture(platformContext, glm::rotate(glm::radians(90.f), glm::vec3(0.f, 1.f, 0.f)), stoneTexture);
drawObjectTexture(craneContext, glm::rotate(glm::radians(90.f), glm::vec3(0.f, 1.f, 0.f)), redTex);
drawObjectColor(lampContext, glm::translate(glm::vec3(lightPos)) * glm::rotate(glm::radians(90.f), glm::vec3(0.f, 1.f, 0.f)), glm::vec3(1, 1, 1));
glutSwapBuffers();
}
void init()
{
srand((unsigned int)time(0));
glEnable(GL_DEPTH_TEST);
programColor = shaderLoader.CreateProgram("shaders/shader_color.vert", "shaders/shader_color.frag");
programTexture = shaderLoader.CreateProgram("shaders/shader_tex.vert", "shaders/shader_tex.frag");
programSkybox = shaderLoader.CreateProgram("shaders/shader_skybox.vert", "shaders/shader_skybox.frag");
cubemapTexture = Skybox::loadCubemap(faces);
initRenderables();
initPhysicsScene();
}
void shutdown()
{
shaderLoader.DeleteProgram(programColor);
shaderLoader.DeleteProgram(programTexture);
planeContext.initFromOBJ(planeModel);
boxContext.initFromOBJ(boxModel);
shipContext.initFromOBJ(shipModel);
boosterContext.initFromOBJ(boosterModel);
platformContext.initFromOBJ(platformModel);
craneContext.initFromOBJ(craneModel);
lampContext.initFromOBJ(lampModel);
}
void idle()
{
glutPostRedisplay();
}
int main(int argc, char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowPosition(200, 200);
glutInitWindowSize(600, 600);
glutCreateWindow("Projekt");
glewInit();
init();
glutKeyboardFunc(keyboard);
glutPassiveMotionFunc(mouse);
glutDisplayFunc(renderScene);
glutIdleFunc(idle);
glutMainLoop();
shutdown();
return 0;
}

95
src/start.cpp
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@ -11,22 +11,48 @@
#include "Camera.h"
#include "Texture.h"
#include "Physics.h"
#include "Skybox.h"
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
Core::Shader_Loader shaderLoader;
GLuint programColor;
GLuint programTexture;
GLuint programSkybox;
GLuint cubemapTexture;
GLuint skyboxVAO, skyboxVBO;
obj::Model planeModel, spaceshipModel, boosterModel;
Core::RenderContext planeContext, spaceshipContext, boosterContext;
GLuint boxTexture, groundTexture;
obj::Model planeModel;
obj::Model boxModel;
obj::Model shipModel;
obj::Model boosterModel;
obj::Model platformModel;
obj::Model craneModel;
obj::Model lampModel;
glm::mat4 boxModelMatrix;
Core::RenderContext planeContext, boxContext, shipContext, boosterContext, platformContext, craneContext, lampContext;
GLuint boxTexture, groundTexture, shipTexture, stoneTexture, redTex, yellowTex;
glm::vec3 cameraPos = glm::vec3(0, 5, 40);
glm::vec3 cameraPos = glm::vec3(-40, 5, 0);
glm::vec3 cameraDir;
glm::vec3 cameraSide;
float cameraAngle = 0;
glm::mat4 cameraMatrix, perspectiveMatrix;
glm::vec3 lightDir = glm::normalize(glm::vec3(0.5, -1, -0.5));
glm::vec3 lightPos = glm::vec3(-15.75, 2, 0);
// skybox
std::vector<std::string> faces
{
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
"textures/skybox/stars.jpeg",
};
// Initalization of physical scene (PhysX)
@ -58,17 +84,29 @@ std::vector<Renderable*> renderables;
void initRenderables()
{
// load models
planeModel = obj::loadModelFromFile("models/plane.obj");
spaceshipModel = obj::loadModelFromFile("models/ship.obj");
planeModel = obj::loadModelFromFile("models/plane2.obj");
boxModel = obj::loadModelFromFile("models/box.obj");
shipModel = obj::loadModelFromFile("models/ship.obj");
boosterModel = obj::loadModelFromFile("models/booster.obj");
platformModel = obj::loadModelFromFile("models/platform4.obj");
craneModel = obj::loadModelFromFile("models/crane.obj");
lampModel = obj::loadModelFromFile("models/lamp2.obj");
planeContext.initFromOBJ(planeModel);
spaceshipContext.initFromOBJ(spaceshipModel);
boxContext.initFromOBJ(boxModel);
shipContext.initFromOBJ(shipModel);
boosterContext.initFromOBJ(boosterModel);
platformContext.initFromOBJ(platformModel);
craneContext.initFromOBJ(craneModel);
lampContext.initFromOBJ(lampModel);
// load textures
groundTexture = Core::LoadTexture("textures/sand.jpg");
boxTexture = Core::LoadTexture("textures/a.jpg");
shipTexture = Core::LoadTexture("textures/ship.png");
stoneTexture = Core::LoadTexture("textures/stone.png");
redTex = Core::LoadTexture("textures/redTex.png");
yellowTex = Core::LoadTexture("textures/yellowTex.jpg");
// This time we organize all the renderables in a list
// of basic properties (model, transform, texture),
@ -83,13 +121,29 @@ void initRenderables()
Renderable* booster = new Renderable();
booster->context = &boosterContext;
booster->textureId = boxTexture;
booster->textureId = shipTexture;
renderables.emplace_back(booster);
Renderable* spaceship = new Renderable();
spaceship->context = &spaceshipContext;
spaceship->textureId = boxTexture;
spaceship->context = &shipContext;
spaceship->textureId = shipTexture;
renderables.emplace_back(spaceship);
Renderable* platform = new Renderable();
platform->context = &platformContext;
platform->textureId = stoneTexture;
renderables.emplace_back(platform);
Renderable* crane = new Renderable();
crane->context = &craneContext;
crane->textureId = redTex;
renderables.emplace_back(crane);
Renderable* lamp = new Renderable();
lamp->context = &lampContext;
lamp->textureId = yellowTex;
renderables.emplace_back(lamp);
}
void initPhysicsScene()
@ -182,7 +236,7 @@ void mouse(int x, int y)
glm::mat4 createCameraMatrix()
{
cameraDir = glm::normalize(glm::vec3(cosf(cameraAngle - glm::radians(90.0f)), 0, sinf(cameraAngle - glm::radians(90.0f))));
cameraDir = glm::normalize(glm::vec3(cosf(cameraAngle ), 0, sinf(cameraAngle )));
glm::vec3 up = glm::vec3(0, 1, 0);
cameraSide = glm::cross(cameraDir, up);
@ -200,6 +254,7 @@ void drawObjectColor(Core::RenderContext* context, glm::mat4 modelMatrix, glm::v
glUniform3f(glGetUniformLocation(program, "objectColor"), color.x, color.y, color.z);
glUniform3f(glGetUniformLocation(program, "lightDir"), lightDir.x, lightDir.y, lightDir.z);
glUniform3f(glGetUniformLocation(program, "lightPos"), lightPos.x, lightPos.y, lightPos.z);
glm::mat4 transformation = perspectiveMatrix * cameraMatrix * modelMatrix;
glUniformMatrix4fv(glGetUniformLocation(program, "modelViewProjectionMatrix"), 1, GL_FALSE, (float*)&transformation);
@ -217,6 +272,7 @@ void drawObjectTexture(Core::RenderContext * context, glm::mat4 modelMatrix, GLu
glUseProgram(program);
glUniform3f(glGetUniformLocation(program, "lightDir"), lightDir.x, lightDir.y, lightDir.z);
glUniform3f(glGetUniformLocation(program, "lightPos"), lightPos.x, lightPos.y, lightPos.z);
Core::SetActiveTexture(textureId, "textureSampler", program, 0);
glm::mat4 transformation = perspectiveMatrix * cameraMatrix * modelMatrix;
@ -247,11 +303,13 @@ void renderScene()
// Update of camera and perspective matrices
cameraMatrix = createCameraMatrix();
perspectiveMatrix = Core::createPerspectiveMatrix();
perspectiveMatrix = Core::createPerspectiveMatrix(0.1f, 1000.f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearColor(0.0f, 0.1f, 0.3f, 1.0f);
Skybox::drawSkybox(programSkybox, cameraMatrix, perspectiveMatrix, cubemapTexture);
// update transforms from physics simulation
updateTransforms();
@ -282,6 +340,9 @@ void init()
glEnable(GL_DEPTH_TEST);
programColor = shaderLoader.CreateProgram("shaders/shader_color.vert", "shaders/shader_color.frag");
programTexture = shaderLoader.CreateProgram("shaders/shader_tex.vert", "shaders/shader_tex.frag");
programSkybox = shaderLoader.CreateProgram("shaders/shader_skybox.vert", "shaders/shader_skybox.frag");
cubemapTexture = Skybox::loadCubemap(faces);
initRenderables();
initPhysicsScene();
@ -292,6 +353,14 @@ void shutdown()
{
shaderLoader.DeleteProgram(programColor);
shaderLoader.DeleteProgram(programTexture);
planeContext.initFromOBJ(planeModel);
boxContext.initFromOBJ(boxModel);
shipContext.initFromOBJ(shipModel);
boosterContext.initFromOBJ(boosterModel);
platformContext.initFromOBJ(platformModel);
craneContext.initFromOBJ(craneModel);
lampContext.initFromOBJ(lampModel);
}
void idle()
@ -305,7 +374,7 @@ int main(int argc, char ** argv)
glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowPosition(200, 200);
glutInitWindowSize(600, 600);
glutCreateWindow("OpenGL + PhysX");
glutCreateWindow("Projekt GRK");
glewInit();
init();

4395
src/stb_image.c Normal file
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269
src/stb_image.h Normal file
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@ -0,0 +1,269 @@
#ifndef STBI_INCLUDE_STB_IMAGE_H
#define STBI_INCLUDE_STB_IMAGE_H
// To get a header file for this, either cut and paste the header,
// or create stb_image.h, #define STBI_HEADER_FILE_ONLY, and
// then include stb_image.c from it.
//// begin header file ////////////////////////////////////////////////////
//
// Limitations:
// - no jpeg progressive support
// - non-HDR formats support 8-bit samples only (jpeg, png)
// - no delayed line count (jpeg) -- IJG doesn't support either
// - no 1-bit BMP
// - GIF always returns *comp=4
//
// Basic usage (see HDR discussion below):
// int x,y,n;
// unsigned char *data = stbi_load(filename, &x, &y, &n, 0);
// // ... process data if not NULL ...
// // ... x = width, y = height, n = # 8-bit components per pixel ...
// // ... replace '0' with '1'..'4' to force that many components per pixel
// // ... but 'n' will always be the number that it would have been if you said 0
// stbi_image_free(data)
//
// Standard parameters:
// int *x -- outputs image width in pixels
// int *y -- outputs image height in pixels
// int *comp -- outputs # of image components in image file
// int req_comp -- if non-zero, # of image components requested in result
//
// The return value from an image loader is an 'unsigned char *' which points
// to the pixel data. The pixel data consists of *y scanlines of *x pixels,
// with each pixel consisting of N interleaved 8-bit components; the first
// pixel pointed to is top-left-most in the image. There is no padding between
// image scanlines or between pixels, regardless of format. The number of
// components N is 'req_comp' if req_comp is non-zero, or *comp otherwise.
// If req_comp is non-zero, *comp has the number of components that _would_
// have been output otherwise. E.g. if you set req_comp to 4, you will always
// get RGBA output, but you can check *comp to easily see if it's opaque.
//
// An output image with N components has the following components interleaved
// in this order in each pixel:
//
// N=#comp components
// 1 grey
// 2 grey, alpha
// 3 red, green, blue
// 4 red, green, blue, alpha
//
// If image loading fails for any reason, the return value will be NULL,
// and *x, *y, *comp will be unchanged. The function stbi_failure_reason()
// can be queried for an extremely brief, end-user unfriendly explanation
// of why the load failed. Define STBI_NO_FAILURE_STRINGS to avoid
// compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly
// more user-friendly ones.
//
// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized.
//
// ===========================================================================
//
// iPhone PNG support:
//
// By default we convert iphone-formatted PNGs back to RGB; nominally they
// would silently load as BGR, except the existing code should have just
// failed on such iPhone PNGs. But you can disable this conversion by
// by calling stbi_convert_iphone_png_to_rgb(0), in which case
// you will always just get the native iphone "format" through.
//
// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per
// pixel to remove any premultiplied alpha *only* if the image file explicitly
// says there's premultiplied data (currently only happens in iPhone images,
// and only if iPhone convert-to-rgb processing is on).
//
// ===========================================================================
//
// HDR image support (disable by defining STBI_NO_HDR)
//
// stb_image now supports loading HDR images in general, and currently
// the Radiance .HDR file format, although the support is provided
// generically. You can still load any file through the existing interface;
// if you attempt to load an HDR file, it will be automatically remapped to
// LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1;
// both of these constants can be reconfigured through this interface:
//
// stbi_hdr_to_ldr_gamma(2.2f);
// stbi_hdr_to_ldr_scale(1.0f);
//
// (note, do not use _inverse_ constants; stbi_image will invert them
// appropriately).
//
// Additionally, there is a new, parallel interface for loading files as
// (linear) floats to preserve the full dynamic range:
//
// float *data = stbi_loadf(filename, &x, &y, &n, 0);
//
// If you load LDR images through this interface, those images will
// be promoted to floating point values, run through the inverse of
// constants corresponding to the above:
//
// stbi_ldr_to_hdr_scale(1.0f);
// stbi_ldr_to_hdr_gamma(2.2f);
//
// Finally, given a filename (or an open file or memory block--see header
// file for details) containing image data, you can query for the "most
// appropriate" interface to use (that is, whether the image is HDR or
// not), using:
//
// stbi_is_hdr(char *filename);
//
// ===========================================================================
//
// I/O callbacks
//
// I/O callbacks allow you to read from arbitrary sources, like packaged
// files or some other source. Data read from callbacks are processed
// through a small internal buffer (currently 128 bytes) to try to reduce
// overhead.
//
// The three functions you must define are "read" (reads some bytes of data),
// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end).
#ifndef STBI_NO_STDIO
#if defined(_MSC_VER) && _MSC_VER >= 0x1400
#define _CRT_SECURE_NO_WARNINGS // suppress bogus warnings about fopen()
#endif
#include <stdio.h>
#endif
#define STBI_VERSION 1
enum
{
STBI_default = 0, // only used for req_comp
STBI_grey = 1,
STBI_grey_alpha = 2,
STBI_rgb = 3,
STBI_rgb_alpha = 4
};
typedef unsigned char stbi_uc;
#ifdef __cplusplus
extern "C" {
#endif
//////////////////////////////////////////////////////////////////////////////
//
// PRIMARY API - works on images of any type
//
//
// load image by filename, open file, or memory buffer
//
extern stbi_uc* stbi_load_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp, int req_comp);
#ifndef STBI_NO_STDIO
extern stbi_uc* stbi_load(char const* filename, int* x, int* y, int* comp, int req_comp);
extern stbi_uc* stbi_load_from_file(FILE* f, int* x, int* y, int* comp, int req_comp);
// for stbi_load_from_file, file pointer is left pointing immediately after image
#endif
typedef struct
{
int (*read) (void* user, char* data, int size); // fill 'data' with 'size' bytes. return number of bytes actually read
void (*skip) (void* user, unsigned n); // skip the next 'n' bytes
int (*eof) (void* user); // returns nonzero if we are at end of file/data
} stbi_io_callbacks;
extern stbi_uc* stbi_load_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* comp, int req_comp);
#ifndef STBI_NO_HDR
extern float* stbi_loadf_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp, int req_comp);
#ifndef STBI_NO_STDIO
extern float* stbi_loadf(char const* filename, int* x, int* y, int* comp, int req_comp);
extern float* stbi_loadf_from_file(FILE* f, int* x, int* y, int* comp, int req_comp);
#endif
extern float* stbi_loadf_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* comp, int req_comp);
extern void stbi_hdr_to_ldr_gamma(float gamma);
extern void stbi_hdr_to_ldr_scale(float scale);
extern void stbi_ldr_to_hdr_gamma(float gamma);
extern void stbi_ldr_to_hdr_scale(float scale);
#endif // STBI_NO_HDR
// stbi_is_hdr is always defined
extern int stbi_is_hdr_from_callbacks(stbi_io_callbacks const* clbk, void* user);
extern int stbi_is_hdr_from_memory(stbi_uc const* buffer, int len);
#ifndef STBI_NO_STDIO
extern int stbi_is_hdr(char const* filename);
extern int stbi_is_hdr_from_file(FILE* f);
#endif // STBI_NO_STDIO
// get a VERY brief reason for failure
// NOT THREADSAFE
extern const char* stbi_failure_reason(void);
// free the loaded image -- this is just free()
extern void stbi_image_free(void* retval_from_stbi_load);
// get image dimensions & components without fully decoding
extern int stbi_info_from_memory(stbi_uc const* buffer, int len, int* x, int* y, int* comp);
extern int stbi_info_from_callbacks(stbi_io_callbacks const* clbk, void* user, int* x, int* y, int* comp);
#ifndef STBI_NO_STDIO
extern int stbi_info(char const* filename, int* x, int* y, int* comp);
extern int stbi_info_from_file(FILE* f, int* x, int* y, int* comp);
#endif
// for image formats that explicitly notate that they have premultiplied alpha,
// we just return the colors as stored in the file. set this flag to force
// unpremultiplication. results are undefined if the unpremultiply overflow.
extern void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply);
// indicate whether we should process iphone images back to canonical format,
// or just pass them through "as-is"
extern void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert);
// ZLIB client - used by PNG, available for other purposes
extern char* stbi_zlib_decode_malloc_guesssize(const char* buffer, int len, int initial_size, int* outlen);
extern char* stbi_zlib_decode_malloc(const char* buffer, int len, int* outlen);
extern int stbi_zlib_decode_buffer(char* obuffer, int olen, const char* ibuffer, int ilen);
extern char* stbi_zlib_decode_noheader_malloc(const char* buffer, int len, int* outlen);
extern int stbi_zlib_decode_noheader_buffer(char* obuffer, int olen, const char* ibuffer, int ilen);
// define faster low-level operations (typically SIMD support)
#ifdef STBI_SIMD
typedef void (*stbi_idct_8x8)(stbi_uc* out, int out_stride, short data[64], unsigned short* dequantize);
// compute an integer IDCT on "input"
// input[x] = data[x] * dequantize[x]
// write results to 'out': 64 samples, each run of 8 spaced by 'out_stride'
// CLAMP results to 0..255
typedef void (*stbi_YCbCr_to_RGB_run)(stbi_uc* output, stbi_uc const* y, stbi_uc const* cb, stbi_uc const* cr, int count, int step);
// compute a conversion from YCbCr to RGB
// 'count' pixels
// write pixels to 'output'; each pixel is 'step' bytes (either 3 or 4; if 4, write '255' as 4th), order R,G,B
// y: Y input channel
// cb: Cb input channel; scale/biased to be 0..255
// cr: Cr input channel; scale/biased to be 0..255
extern void stbi_install_idct(stbi_idct_8x8 func);
extern void stbi_install_YCbCr_to_RGB(stbi_YCbCr_to_RGB_run func);
#endif // STBI_SIMD
#ifdef __cplusplus
}
#endif
//
//
//// end header file /////////////////////////////////////////////////////
#endif // STBI_INCLUDE_STB_IMAGE_H

445
src/stbi_image_write.c Normal file
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@ -0,0 +1,445 @@
#define STB_IMAGE_WRITE_IMPLEMENTATION
#include "stbi_image_write.h"
#ifdef STB_IMAGE_WRITE_IMPLEMENTATION
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
typedef unsigned int stbiw_uint32;
typedef int stb_image_write_test[sizeof(stbiw_uint32)==4 ? 1 : -1];
static void writefv(FILE *f, const char *fmt, va_list v)
{
while (*fmt) {
switch (*fmt++) {
case ' ': break;
case '1': { unsigned char x = (unsigned char) va_arg(v, int); fputc(x,f); break; }
case '2': { int x = va_arg(v,int); unsigned char b[2];
b[0] = (unsigned char) x; b[1] = (unsigned char) (x>>8);
fwrite(b,2,1,f); break; }
case '4': { stbiw_uint32 x = va_arg(v,int); unsigned char b[4];
b[0]=(unsigned char)x; b[1]=(unsigned char)(x>>8);
b[2]=(unsigned char)(x>>16); b[3]=(unsigned char)(x>>24);
fwrite(b,4,1,f); break; }
default:
assert(0);
return;
}
}
}
static void write3(FILE *f, unsigned char a, unsigned char b, unsigned char c)
{
unsigned char arr[3];
arr[0] = a, arr[1] = b, arr[2] = c;
fwrite(arr, 3, 1, f);
}
static void write_pixels(FILE *f, int rgb_dir, int vdir, int x, int y, int comp, void *data, int write_alpha, int scanline_pad)
{
unsigned char bg[3] = { 255, 0, 255}, px[3];
stbiw_uint32 zero = 0;
int i,j,k, j_end;
if (y <= 0)
return;
if (vdir < 0)
j_end = -1, j = y-1;
else
j_end = y, j = 0;
for (; j != j_end; j += vdir) {
for (i=0; i < x; ++i) {
unsigned char *d = (unsigned char *) data + (j*x+i)*comp;
if (write_alpha < 0)
fwrite(&d[comp-1], 1, 1, f);
switch (comp) {
case 1:
case 2: write3(f, d[0],d[0],d[0]);
break;
case 4:
if (!write_alpha) {
// composite against pink background
for (k=0; k < 3; ++k)
px[k] = bg[k] + ((d[k] - bg[k]) * d[3])/255;
write3(f, px[1-rgb_dir],px[1],px[1+rgb_dir]);
break;
}
/* FALLTHROUGH */
case 3:
write3(f, d[1-rgb_dir],d[1],d[1+rgb_dir]);
break;
}
if (write_alpha > 0)
fwrite(&d[comp-1], 1, 1, f);
}
fwrite(&zero,scanline_pad,1,f);
}
}
static int outfile(char const *filename, int rgb_dir, int vdir, int x, int y, int comp, void *data, int alpha, int pad, const char *fmt, ...)
{
FILE *f;
if (y < 0 || x < 0) return 0;
f = fopen(filename, "wb");
if (f) {
va_list v;
va_start(v, fmt);
writefv(f, fmt, v);
va_end(v);
write_pixels(f,rgb_dir,vdir,x,y,comp,data,alpha,pad);
fclose(f);
}
return f != NULL;
}
int stbi_write_bmp(char const *filename, int x, int y, int comp, const void *data)
{
int pad = (-x*3) & 3;
return outfile(filename,-1,-1,x,y,comp,(void *) data,0,pad,
"11 4 22 4" "4 44 22 444444",
'B', 'M', 14+40+(x*3+pad)*y, 0,0, 14+40, // file header
40, x,y, 1,24, 0,0,0,0,0,0); // bitmap header
}
int stbi_write_tga(char const *filename, int x, int y, int comp, const void *data)
{
int has_alpha = !(comp & 1);
return outfile(filename, -1,-1, x, y, comp, (void *) data, has_alpha, 0,
"111 221 2222 11", 0,0,2, 0,0,0, 0,0,x,y, 24+8*has_alpha, 8*has_alpha);
}
// stretchy buffer; stbi__sbpush() == vector<>::push_back() -- stbi__sbcount() == vector<>::size()
#define stbi__sbraw(a) ((int *) (a) - 2)
#define stbi__sbm(a) stbi__sbraw(a)[0]
#define stbi__sbn(a) stbi__sbraw(a)[1]
#define stbi__sbneedgrow(a,n) ((a)==0 || stbi__sbn(a)+n >= stbi__sbm(a))
#define stbi__sbmaybegrow(a,n) (stbi__sbneedgrow(a,(n)) ? stbi__sbgrow(a,n) : 0)
#define stbi__sbgrow(a,n) stbi__sbgrowf((void **) &(a), (n), sizeof(*(a)))
#define stbi__sbpush(a, v) (stbi__sbmaybegrow(a,1), (a)[stbi__sbn(a)++] = (v))
#define stbi__sbcount(a) ((a) ? stbi__sbn(a) : 0)
#define stbi__sbfree(a) ((a) ? free(stbi__sbraw(a)),0 : 0)
static void *stbi__sbgrowf(void **arr, int increment, int itemsize)
{
int m = *arr ? 2*stbi__sbm(*arr)+increment : increment+1;
void *p = realloc(*arr ? stbi__sbraw(*arr) : 0, itemsize * m + sizeof(int)*2);
assert(p);
if (p) {
if (!*arr) ((int *) p)[1] = 0;
*arr = (void *) ((int *) p + 2);
stbi__sbm(*arr) = m;
}
return *arr;
}
static unsigned char *stbi__zlib_flushf(unsigned char *data, unsigned int *bitbuffer, int *bitcount)
{
while (*bitcount >= 8) {
stbi__sbpush(data, (unsigned char) *bitbuffer);
*bitbuffer >>= 8;
*bitcount -= 8;
}
return data;
}
static int stbi__zlib_bitrev(int code, int codebits)
{
int res=0;
while (codebits--) {
res = (res << 1) | (code & 1);
code >>= 1;
}
return res;
}
static unsigned int stbi__zlib_countm(unsigned char *a, unsigned char *b, int limit)
{
int i;
for (i=0; i < limit && i < 258; ++i)
if (a[i] != b[i]) break;
return i;
}
static unsigned int stbi__zhash(unsigned char *data)
{
stbiw_uint32 hash = data[0] + (data[1] << 8) + (data[2] << 16);
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
#define stbi__zlib_flush() (out = stbi__zlib_flushf(out, &bitbuf, &bitcount))
#define stbi__zlib_add(code,codebits) \
(bitbuf |= (code) << bitcount, bitcount += (codebits), stbi__zlib_flush())
#define stbi__zlib_huffa(b,c) stbi__zlib_add(stbi__zlib_bitrev(b,c),c)
// default huffman tables
#define stbi__zlib_huff1(n) stbi__zlib_huffa(0x30 + (n), 8)
#define stbi__zlib_huff2(n) stbi__zlib_huffa(0x190 + (n)-144, 9)
#define stbi__zlib_huff3(n) stbi__zlib_huffa(0 + (n)-256,7)
#define stbi__zlib_huff4(n) stbi__zlib_huffa(0xc0 + (n)-280,8)
#define stbi__zlib_huff(n) ((n) <= 143 ? stbi__zlib_huff1(n) : (n) <= 255 ? stbi__zlib_huff2(n) : (n) <= 279 ? stbi__zlib_huff3(n) : stbi__zlib_huff4(n))
#define stbi__zlib_huffb(n) ((n) <= 143 ? stbi__zlib_huff1(n) : stbi__zlib_huff2(n))
#define stbi__ZHASH 16384
unsigned char * stbi_zlib_compress(unsigned char *data, int data_len, int *out_len, int quality)
{
static unsigned short lengthc[] = { 3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,51,59,67,83,99,115,131,163,195,227,258, 259 };
static unsigned char lengtheb[]= { 0,0,0,0,0,0,0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0 };
static unsigned short distc[] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577, 32768 };
static unsigned char disteb[] = { 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13 };
unsigned int bitbuf=0;
int i,j, bitcount=0;
unsigned char *out = NULL;
unsigned char **hash_table[stbi__ZHASH]; // 64KB on the stack!
if (quality < 5) quality = 5;
stbi__sbpush(out, 0x78); // DEFLATE 32K window
stbi__sbpush(out, 0x5e); // FLEVEL = 1
stbi__zlib_add(1,1); // BFINAL = 1
stbi__zlib_add(1,2); // BTYPE = 1 -- fixed huffman
for (i=0; i < stbi__ZHASH; ++i)
hash_table[i] = NULL;
i=0;
while (i < data_len-3) {
// hash next 3 bytes of data to be compressed
int h = stbi__zhash(data+i)&(stbi__ZHASH-1), best=3;
unsigned char *bestloc = 0;
unsigned char **hlist = hash_table[h];
int n = stbi__sbcount(hlist);
for (j=0; j < n; ++j) {
if (hlist[j]-data > i-32768) { // if entry lies within window
int d = stbi__zlib_countm(hlist[j], data+i, data_len-i);
if (d >= best) best=d,bestloc=hlist[j];
}
}
// when hash table entry is too long, delete half the entries
if (hash_table[h] && stbi__sbn(hash_table[h]) == 2*quality) {
memcpy(hash_table[h], hash_table[h]+quality, sizeof(hash_table[h][0])*quality);
stbi__sbn(hash_table[h]) = quality;
}
stbi__sbpush(hash_table[h],data+i);
if (bestloc) {
// "lazy matching" - check match at *next* byte, and if it's better, do cur byte as literal
h = stbi__zhash(data+i+1)&(stbi__ZHASH-1);
hlist = hash_table[h];
n = stbi__sbcount(hlist);
for (j=0; j < n; ++j) {
if (hlist[j]-data > i-32767) {
int e = stbi__zlib_countm(hlist[j], data+i+1, data_len-i-1);
if (e > best) { // if next match is better, bail on current match
bestloc = NULL;
break;
}
}
}
}
if (bestloc) {
int d = data+i - bestloc; // distance back
assert(d <= 32767 && best <= 258);
for (j=0; best > lengthc[j+1]-1; ++j);
stbi__zlib_huff(j+257);
if (lengtheb[j]) stbi__zlib_add(best - lengthc[j], lengtheb[j]);
for (j=0; d > distc[j+1]-1; ++j);
stbi__zlib_add(stbi__zlib_bitrev(j,5),5);
if (disteb[j]) stbi__zlib_add(d - distc[j], disteb[j]);
i += best;
} else {
stbi__zlib_huffb(data[i]);
++i;
}
}
// write out final bytes
for (;i < data_len; ++i)
stbi__zlib_huffb(data[i]);
stbi__zlib_huff(256); // end of block
// pad with 0 bits to byte boundary
while (bitcount)
stbi__zlib_add(0,1);
for (i=0; i < stbi__ZHASH; ++i)
(void) stbi__sbfree(hash_table[i]);
{
// compute adler32 on input
unsigned int i=0, s1=1, s2=0, blocklen = data_len % 5552;
int j=0;
while (j < data_len) {
for (i=0; i < blocklen; ++i) s1 += data[j+i], s2 += s1;
s1 %= 65521, s2 %= 65521;
j += blocklen;
blocklen = 5552;
}
stbi__sbpush(out, (unsigned char) (s2 >> 8));
stbi__sbpush(out, (unsigned char) s2);
stbi__sbpush(out, (unsigned char) (s1 >> 8));
stbi__sbpush(out, (unsigned char) s1);
}
*out_len = stbi__sbn(out);
// make returned pointer freeable
memmove(stbi__sbraw(out), out, *out_len);
return (unsigned char *) stbi__sbraw(out);
}
unsigned int stbi__crc32(unsigned char *buffer, int len)
{
static unsigned int crc_table[256];
unsigned int crc = ~0u;
int i,j;
if (crc_table[1] == 0)
for(i=0; i < 256; i++)
for (crc_table[i]=i, j=0; j < 8; ++j)
crc_table[i] = (crc_table[i] >> 1) ^ (crc_table[i] & 1 ? 0xedb88320 : 0);
for (i=0; i < len; ++i)
crc = (crc >> 8) ^ crc_table[buffer[i] ^ (crc & 0xff)];
return ~crc;
}
#define stbi__wpng4(o,a,b,c,d) ((o)[0]=(unsigned char)(a),(o)[1]=(unsigned char)(b),(o)[2]=(unsigned char)(c),(o)[3]=(unsigned char)(d),(o)+=4)
#define stbi__wp32(data,v) stbi__wpng4(data, (v)>>24,(v)>>16,(v)>>8,(v));
#define stbi__wptag(data,s) stbi__wpng4(data, s[0],s[1],s[2],s[3])
static void stbi__wpcrc(unsigned char **data, int len)
{
unsigned int crc = stbi__crc32(*data - len - 4, len+4);
stbi__wp32(*data, crc);
}
static unsigned char stbi__paeth(int a, int b, int c)
{
int p = a + b - c, pa = abs(p-a), pb = abs(p-b), pc = abs(p-c);
if (pa <= pb && pa <= pc) return (unsigned char) a;
if (pb <= pc) return (unsigned char) b;
return (unsigned char) c;
}
unsigned char *stbi_write_png_to_mem(unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
{
int ctype[5] = { -1, 0, 4, 2, 6 };
unsigned char sig[8] = { 137,80,78,71,13,10,26,10 };
unsigned char *out,*o, *filt, *zlib;
signed char *line_buffer;
int i,j,k,p,zlen;
if (stride_bytes == 0)
stride_bytes = x * n;
filt = (unsigned char *) malloc((x*n+1) * y); if (!filt) return 0;
line_buffer = (signed char *) malloc(x * n); if (!line_buffer) { free(filt); return 0; }
for (j=0; j < y; ++j) {
static int mapping[] = { 0,1,2,3,4 };
static int firstmap[] = { 0,1,0,5,6 };
int *mymap = j ? mapping : firstmap;
int best = 0, bestval = 0x7fffffff;
for (p=0; p < 2; ++p) {
for (k= p?best:0; k < 5; ++k) {
int type = mymap[k],est=0;
unsigned char *z = pixels + stride_bytes*j;
for (i=0; i < n; ++i)
switch (type) {
case 0: line_buffer[i] = z[i]; break;
case 1: line_buffer[i] = z[i]; break;
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
case 3: line_buffer[i] = z[i] - (z[i-stride_bytes]>>1); break;
case 4: line_buffer[i] = (signed char) (z[i] - stbi__paeth(0,z[i-stride_bytes],0)); break;
case 5: line_buffer[i] = z[i]; break;
case 6: line_buffer[i] = z[i]; break;
}
for (i=n; i < x*n; ++i) {
switch (type) {
case 0: line_buffer[i] = z[i]; break;
case 1: line_buffer[i] = z[i] - z[i-n]; break;
case 2: line_buffer[i] = z[i] - z[i-stride_bytes]; break;
case 3: line_buffer[i] = z[i] - ((z[i-n] + z[i-stride_bytes])>>1); break;
case 4: line_buffer[i] = z[i] - stbi__paeth(z[i-n], z[i-stride_bytes], z[i-stride_bytes-n]); break;
case 5: line_buffer[i] = z[i] - (z[i-n]>>1); break;
case 6: line_buffer[i] = z[i] - stbi__paeth(z[i-n], 0,0); break;
}
}
if (p) break;
for (i=0; i < x*n; ++i)
est += abs((signed char) line_buffer[i]);
if (est < bestval) { bestval = est; best = k; }
}
}
// when we get here, best contains the filter type, and line_buffer contains the data
filt[j*(x*n+1)] = (unsigned char) best;
memcpy(filt+j*(x*n+1)+1, line_buffer, x*n);
}
free(line_buffer);
zlib = stbi_zlib_compress(filt, y*( x*n+1), &zlen, 8); // increase 8 to get smaller but use more memory
free(filt);
if (!zlib) return 0;
// each tag requires 12 bytes of overhead
out = (unsigned char *) malloc(8 + 12+13 + 12+zlen + 12);
if (!out) return 0;
*out_len = 8 + 12+13 + 12+zlen + 12;
o=out;
memcpy(o,sig,8); o+= 8;
stbi__wp32(o, 13); // header length
stbi__wptag(o, "IHDR");
stbi__wp32(o, x);
stbi__wp32(o, y);
*o++ = 8;
*o++ = (unsigned char) ctype[n];
*o++ = 0;
*o++ = 0;
*o++ = 0;
stbi__wpcrc(&o,13);
stbi__wp32(o, zlen);
stbi__wptag(o, "IDAT");
memcpy(o, zlib, zlen); o += zlen; free(zlib);
stbi__wpcrc(&o, zlen);
stbi__wp32(o,0);
stbi__wptag(o, "IEND");
stbi__wpcrc(&o,0);
assert(o == out + *out_len);
return out;
}
int stbi_write_png(char const *filename, int x, int y, int comp, const void *data, int stride_bytes)
{
FILE *f;
int len;
unsigned char *png = stbi_write_png_to_mem((unsigned char *) data, stride_bytes, x, y, comp, &len);
if (!png) return 0;
f = fopen(filename, "wb");
if (!f) { free(png); return 0; }
fwrite(png, 1, len, f);
fclose(f);
free(png);
return 1;
}
#endif // STB_IMAGE_WRITE_IMPLEMENTATION
/* Revision history
0.92 (2010-08-01)
casts to unsigned char to fix warnings
0.91 (2010-07-17)
first public release
0.90 first internal release
*/

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/* stbiw-0.92 - public domain - http://nothings.org/stb/stb_image_write.h
writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010
no warranty implied; use at your own risk
Before including,
#define STB_IMAGE_WRITE_IMPLEMENTATION
in the file that you want to have the implementation.
ABOUT:
This header file is a library for writing images to C stdio. It could be
adapted to write to memory or a general streaming interface; let me know.
The PNG output is not optimal; it is 20-50% larger than the file
written by a decent optimizing implementation. This library is designed
for source code compactness and simplicitly, not optimal image file size
or run-time performance.
USAGE:
There are three functions, one for each image file format:
int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
Each function returns 0 on failure and non-0 on success.
The functions create an image file defined by the parameters. The image
is a rectangle of pixels stored from left-to-right, top-to-bottom.
Each pixel contains 'comp' channels of data stored interleaved with 8-bits
per channel, in the following order: 1=Y, 2=YA, 3=RGB, 4=RGBA. (Y is
monochrome color.) The rectangle is 'w' pixels wide and 'h' pixels tall.
The *data pointer points to the first byte of the top-left-most pixel.
For PNG, "stride_in_bytes" is the distance in bytes from the first byte of
a row of pixels to the first byte of the next row of pixels.
PNG creates output files with the same number of components as the input.
The BMP and TGA formats expand Y to RGB in the file format. BMP does not
output alpha.
PNG supports writing rectangles of data even when the bytes storing rows of
data are not consecutive in memory (e.g. sub-rectangles of a larger image),
by supplying the stride between the beginning of adjacent rows. The other
formats do not. (Thus you cannot write a native-format BMP through the BMP
writer, both because it is in BGR order and because it may have padding
at the end of the line.)
*/
#ifndef INCLUDE_STB_IMAGE_WRITE_H
#define INCLUDE_STB_IMAGE_WRITE_H
#ifdef __cplusplus
extern "C" {
#endif
extern int stbi_write_png(char const *filename, int w, int h, int comp, const void *data, int stride_in_bytes);
extern int stbi_write_bmp(char const *filename, int w, int h, int comp, const void *data);
extern int stbi_write_tga(char const *filename, int w, int h, int comp, const void *data);
#ifdef __cplusplus
}
#endif
#endif//INCLUDE_STB_IMAGE_WRITE_H

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