mirror of
https://github.com/SatDump/SatDump
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67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
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#include "imgui/imgui_image.h"
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// GL includes
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#if defined(IMGUI_IMPL_OPENGL_ES2)
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#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
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#include <OpenGLES/ES2/gl.h> // Use GL ES 2
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#else
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#include <GLES2/gl2.h> // Use GL ES 2
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#endif
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#if defined(__EMSCRIPTEN__)
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#ifndef GL_GLEXT_PROTOTYPES
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#define GL_GLEXT_PROTOTYPES
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#endif
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#include <GLES2/gl2ext.h>
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#endif
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#elif defined(IMGUI_IMPL_OPENGL_ES3)
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#if defined(__APPLE__)
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#include <TargetConditionals.h>
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#endif
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#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
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#include <OpenGLES/ES3/gl.h> // Use GL ES 3
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#else
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#include <GLES3/gl3.h> // Use GL ES 3
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#endif
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#elif !defined(IMGUI_IMPL_OPENGL_LOADER_CUSTOM)
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// Modern desktop OpenGL doesn't have a standard portable header file to load OpenGL function pointers.
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// Helper libraries are often used for this purpose! Here we are using our own minimal custom loader based on gl3w.
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// In the rest of your app/engine, you can use another loader of your choice (gl3w, glew, glad, glbinding, glext, glLoadGen, etc.).
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// If you happen to be developing a new feature for this backend (imgui_impl_opengl3.cpp):
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// - You may need to regenerate imgui_impl_opengl3_loader.h to add new symbols. See https://github.com/dearimgui/gl3w_stripped
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// - You can temporarily use an unstripped version. See https://github.com/dearimgui/gl3w_stripped/releases
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// Changes to this backend using new APIs should be accompanied by a regenerated stripped loader version.
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#define IMGL3W_IMPL
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#include "imgui_impl_opengl3_loader.h"
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#endif
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unsigned int funcMakeImageTexture()
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{
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GLuint gl_text;
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glGenTextures(1, &gl_text);
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return gl_text;
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}
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void funcUpdateImageTexture(unsigned int gl_text, uint32_t *buffer, int width, int height)
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{
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glBindTexture(GL_TEXTURE_2D, gl_text);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
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glBindTexture(GL_TEXTURE_2D, 0);
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}
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void funcDeleteImageTexture(unsigned int /*gl_text*/)
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{
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//glDeleteTextures(1, &gl_text);
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}
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void bindImageTextureFunctions()
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{
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makeImageTexture = funcMakeImageTexture;
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updateImageTexture = funcUpdateImageTexture;
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deleteImageTexture = funcDeleteImageTexture;
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}
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