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Merge branch 'master' into viewport

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# Conflicts:
#	examples/imgui_impl_opengl2.cpp
#	examples/imgui_impl_opengl3.cpp
#	imgui.cpp
This commit is contained in:
omar
2018-08-13 17:50:48 -07:00
parent 8ef0ca9765 caaa746424
commit e5f2295398
26 changed files with 237 additions and 142 deletions
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30
examples/imgui_impl_opengl3.cpp
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@ -1,4 +1,4 @@
// ImGui Renderer for: OpenGL3 (modern OpenGL with shaders / programmatic pipeline)
// ImGui Renderer for: OpenGL3 / OpenGL ES2 / OpenGL ES3 (modern OpenGL with shaders / programmatic pipeline)
// This needs to be used along with a Platform Binding (e.g. GLFW, SDL, Win32, custom..)
// (Note: We are using GL3W as a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc..)
@ -13,6 +13,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2018-08-09: OpenGL: Default to OpenGL ES 3 on iOS and Android. GLSL version default to "#version 300 ES".
// 2018-07-30: OpenGL: Support for GLSL 300 ES and 410 core. Fixes for Emscripten compilation.
// 2018-07-10: OpenGL: Support for more GLSL versions (based on the GLSL version string). Added error output when shaders fail to compile/link.
// 2018-06-08: Misc: Extracted imgui_impl_opengl3.cpp/.h away from the old combined GLFW/SDL+OpenGL3 examples.
@ -59,14 +60,24 @@
#else
#include <stdint.h> // intptr_t
#endif
#if defined(__APPLE__)
#include "TargetConditionals.h"
#endif
#ifdef __EMSCRIPTEN__
// iOS, Android and Emscripten can use GL ES 3
// Call ImGui_ImplOpenGL3_Init() with "#version 300 es"
#if (defined(__APPLE__) && TARGET_OS_IOS) || (defined(__ANDROID__)) || (defined(__EMSCRIPTEN__))
#define USE_GL_ES3
#endif
#ifdef USE_GL_ES3
// OpenGL ES 3
#include <GLES3/gl3.h> // Use GL ES 3
#else
// About OpenGL function loaders:
// Modern OpenGL requires individual functions to be loaded manually. Helper libraries are often used for this purpose.
// Here we are using gl3w.h, which requires a call to gl3wInit().
// You may use another any other loader/header of your choice, such as glew, glext, glad, glLoadGen, etc.
// OpenGL Regular
// (About OpenGL function loaders: modern OpenGL doesn't have a standard header file and requires individual functions to be loaded manually.
// Helper libraries are often used for this purpose! Here we are using gl3w.h, which requires a call to gl3wInit().
// You may use another any other loader/header of your choice, such as glew, glext, glad, glLoadGen, etc.)
#include <GL/gl3w.h>
//#include <glew.h>
//#include <glext.h>
@ -89,8 +100,13 @@ static void ImGui_ImplOpenGL3_ShutdownPlatformInterface();
bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
{
// Store GLSL version string so we can refer to it later in case we recreate shaders. Note: GLSL version is NOT the same as GL version. Leave this to NULL if unsure.
#ifdef USE_GL_ES3
if (glsl_version == NULL)
glsl_version = "#version 300 es";
#else
if (glsl_version == NULL)
glsl_version = "#version 130";
#endif
IM_ASSERT((int)strlen(glsl_version) + 2 < IM_ARRAYSIZE(g_GlslVersionString));
strcpy(g_GlslVersionString, glsl_version);
strcat(g_GlslVersionString, "\n");
@ -277,7 +293,7 @@ bool ImGui_ImplOpenGL3_CreateFontsTexture()
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
// Store our identifier
io.Fonts->TexID = (void *)(intptr_t)g_FontTexture;
io.Fonts->TexID = (ImTextureID)(intptr_t)g_FontTexture;
// Restore state
glBindTexture(GL_TEXTURE_2D, last_texture);