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GL context on command processor.

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This commit is contained in:
Ben Vanik
2014-12-23 20:32:41 -08:00
parent e8de42d9ea
commit 02d52167d3
7 changed files with 569 additions and 62 deletions
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61
src/xenia/gpu/gl4/gl_context.cc
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@@ -9,6 +9,7 @@
#include <xenia/gpu/gl4/gl_context.h>
#include <poly/assert.h>
#include <poly/logging.h>
namespace xe {
@@ -20,17 +21,26 @@ thread_local WGLEWContext* tls_wglew_context_ = nullptr;
extern "C" GLEWContext* glewGetContext() { return tls_glew_context_; }
extern "C" WGLEWContext* wglewGetContext() { return tls_wglew_context_; }
GLContext::GLContext() : dc_(nullptr), glrc_(nullptr) {}
GLContext::GLContext() : hwnd_(nullptr), dc_(nullptr), glrc_(nullptr) {}
GLContext::GLContext(HWND hwnd, HGLRC glrc)
: hwnd_(hwnd), dc_(nullptr), glrc_(glrc) {
dc_ = GetDC(hwnd);
}
GLContext::~GLContext() {
wglMakeCurrent(nullptr, nullptr);
if (glrc_) {
wglDeleteContext(glrc_);
}
if (dc_) {
ReleaseDC(hwnd_, dc_);
}
}
bool GLContext::Initialize(HDC dc) {
dc_ = dc;
bool GLContext::Initialize(HWND hwnd) {
hwnd_ = hwnd;
dc_ = GetDC(hwnd);
PIXELFORMATDESCRIPTOR pfd = {0};
pfd.nSize = sizeof(pfd);
@@ -59,6 +69,7 @@ bool GLContext::Initialize(HDC dc) {
tls_glew_context_ = &glew_context_;
tls_wglew_context_ = &wglew_context_;
glewExperimental = GL_TRUE;
if (glewInit() != GLEW_OK) {
PLOGE("Unable to initialize GLEW");
return false;
@@ -73,11 +84,10 @@ bool GLContext::Initialize(HDC dc) {
return false;
}
int context_flags = WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
int context_flags = 0;
#if DEBUG
context_flags |= WGL_CONTEXT_DEBUG_BIT_ARB;
#endif // DEBUG
#endif // DEBUG
int attrib_list[] = {WGL_CONTEXT_MAJOR_VERSION_ARB, 4, //
WGL_CONTEXT_MINOR_VERSION_ARB, 5, //
WGL_CONTEXT_FLAGS_ARB, context_flags, //
@@ -99,6 +109,45 @@ bool GLContext::Initialize(HDC dc) {
return true;
}
std::unique_ptr<GLContext> GLContext::CreateShared() {
assert_not_null(glrc_);
int context_flags = 0;
#if DEBUG
context_flags |= WGL_CONTEXT_DEBUG_BIT_ARB;
#endif // DEBUG
int attrib_list[] = {WGL_CONTEXT_MAJOR_VERSION_ARB, 4, //
WGL_CONTEXT_MINOR_VERSION_ARB, 5, //
WGL_CONTEXT_FLAGS_ARB, context_flags, //
0};
auto new_glrc = wglCreateContextAttribsARB(dc_, glrc_, attrib_list);
if (!new_glrc) {
PLOGE("Could not create shared context");
return nullptr;
}
auto new_context = std::make_unique<GLContext>(hwnd_, new_glrc);
if (!new_context->MakeCurrent()) {
PLOGE("Could not make new GL context current");
return nullptr;
}
glewExperimental = GL_TRUE;
if (glewInit() != GLEW_OK) {
PLOGE("Unable to initialize GLEW");
return nullptr;
}
if (wglewInit() != GLEW_OK) {
PLOGE("Unable to initialize WGLEW");
return nullptr;
}
new_context->ClearCurrent();
MakeCurrent();
return new_context;
}
bool GLContext::MakeCurrent() {
if (!wglMakeCurrent(dc_, glrc_)) {
return false;