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source/Platform/Win32/Win32GLContext.cpp: use GLAD

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This commit is contained in:
Henrik Hautakoski 2018-05-14 16:27:18 +02:00
parent e2195c1d49
commit a1804cd3df
1 changed files with 28 additions and 38 deletions
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44
source/Platform/Win32/Win32GLContext.cpp
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@ -1,6 +1,5 @@
#include <GL/glew.h> #include "glad_wgl.h"
#include <GL/wglew.h>
#include <Platform/PlatformDisplay.h> #include <Platform/PlatformDisplay.h>
#include <Spectre/System/Log.h> #include <Spectre/System/Log.h>
@ -9,14 +8,20 @@
#include "Win32GLContext.h" #include "Win32GLContext.h"
// Ensure that OpenGL extensions are loaded. // Ensure that OpenGL extensions are loaded.
static void ensureExtensionsLoaded() static void ensureExtensionsLoaded(HDC dc)
{ {
glewExperimental = GL_TRUE; static bool init = false;
GLenum ret = glewInit();
if (ret != GLEW_OK) { if (!init) {
log("Win32: Could not initialize GLEW %s\n", init = true;
glewGetErrorString(ret));
return; if (!gladLoadWGL(dc)) {
log("Win32: Could not load WGL extensions\n");
}
if (!gladLoadGL()) {
log("Win32: Could not load OpenGL extensions\n");
}
} }
} }
@ -89,15 +94,12 @@ void Win32GLContext::createGLContext()
tmpDC = ::wglCreateContext(m_deviceContext); tmpDC = ::wglCreateContext(m_deviceContext);
::wglMakeCurrent(m_deviceContext, tmpDC); ::wglMakeCurrent(m_deviceContext, tmpDC);
ensureExtensionsLoaded(); ensureExtensionsLoaded(m_deviceContext);
// Dont need to old one anymore. // Dont need to old one anymore.
wglMakeCurrent(m_deviceContext, NULL); wglMakeCurrent(m_deviceContext, NULL);
::wglDeleteContext(tmpDC); ::wglDeleteContext(tmpDC);
// Have new CreateContextAttribs function.
if (WGLEW_ARB_create_context_profile) {
// TODO: For now.. We force 3.2 Core but this should not be implementation specific. // TODO: For now.. We force 3.2 Core but this should not be implementation specific.
// The Display class should force that for all GLContext Implementations. // The Display class should force that for all GLContext Implementations.
@ -110,21 +112,13 @@ void Win32GLContext::createGLContext()
// Create real context. // Create real context.
m_renderContext = ::wglCreateContextAttribsARB(m_deviceContext, 0, attriblist); m_renderContext = ::wglCreateContextAttribsARB(m_deviceContext, 0, attriblist);
}
// Could create a old context, but anything below 3.2 is so so old.
else {
log("Win32 - OpenGL 3.2 is not available!\n");
}
} }
bool Win32GLContext::activate() bool Win32GLContext::activate()
{ {
// Make sure we have dc and rc before calling MakeCurrent. // Make sure we have dc and rc before calling MakeCurrent.
if (m_deviceContext && m_renderContext) { if (m_deviceContext && m_renderContext) {
bool ret = ::wglMakeCurrent(m_deviceContext, m_renderContext); return ::wglMakeCurrent(m_deviceContext, m_renderContext);
ensureExtensionsLoaded();
return ret;
} }
return false; return false;
} }
@ -141,13 +135,9 @@ bool Win32GLContext::isActive() const
bool Win32GLContext::setSwapInterval(int interval) bool Win32GLContext::setSwapInterval(int interval)
{ {
ensureExtensionsLoaded(); ensureExtensionsLoaded(m_deviceContext);
if (WGLEW_EXT_swap_control) {
return wglSwapIntervalEXT(interval); return wglSwapIntervalEXT(interval);
}
log("wglSwapInterval: function is not supported\n");
return false;
} }
void Win32GLContext::setSize(unsigned int width, unsigned int height) void Win32GLContext::setSize(unsigned int width, unsigned int height)