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author Vas Crabb <vas@vastheman.com>2023-02-25 08:32:03 +1100
committer Vas Crabb <vas@vastheman.com>2023-02-25 08:43:33 +1100
commit3e27dd60a22b44bca845a70900acb64bb3a4b992 (patch)
tree8329cba1e192c3172920c3b951eef4ac97613d7a /src/osd/modules/render/sdlglcontext.h
parent247e1e1fbb9e49fcfce6400b0c842195ef8b120d (diff)
osd: Fixed various OpenGL issues - fixes -nowaitvsync not working on Windows with -video opengl.
Turned shader tool/shader manager into a class so multiple screens/windows don't nuke each other. Don't try to get supported extensions without a valid GL context with Windows OSD. Use per-context GL function pointers for shader manager and for all functions when using GL dispatch. Windows doesn't guarantee extension functions from one context are valid for another.
Diffstat (limited to 'src/osd/modules/render/sdlglcontext.h')
-rw-r--r--src/osd/modules/render/sdlglcontext.h55
1 files changed, 35 insertions, 20 deletions
diff --git a/src/osd/modules/render/sdlglcontext.h b/src/osd/modules/render/sdlglcontext.h
index b8ff4d72aa2..0f24cdc36ea 100644
--- a/src/osd/modules/render/sdlglcontext.h
+++ b/src/osd/modules/render/sdlglcontext.h
@@ -8,61 +8,76 @@
//
//============================================================
+#ifndef MAME_RENDER_SDLGLCONTEXT_H
+#define MAME_RENDER_SDLGLCONTEXT_H
+
#pragma once
-#ifndef __SDL_GL_CONTEXT__
-#define __SDL_GL_CONTEXT__
+#include "modules/opengl/osd_opengl.h"
+
+#include "strformat.h"
#include <SDL2/SDL.h>
-#include "modules/opengl/osd_opengl.h"
+
+#include <string>
+
class sdl_gl_context : public osd_gl_context
{
public:
- sdl_gl_context(SDL_Window *window) : osd_gl_context(), m_context(0), m_window(window)
+ sdl_gl_context(SDL_Window *window) : m_context(0), m_window(window)
{
- m_error[0] = 0;
m_context = SDL_GL_CreateContext(window);
- if (!m_context)
+ if (!m_context)
{
- snprintf(m_error,255, "OpenGL not supported on this driver: %s", SDL_GetError());
+ try { m_error = util::string_format("OpenGL not supported on this driver: %s", SDL_GetError()); }
+ catch (...) { m_error.clear(); }
}
}
+
virtual ~sdl_gl_context()
{
- SDL_GL_DeleteContext(m_context);
+ if (m_context)
+ SDL_GL_DeleteContext(m_context);
}
- virtual void MakeCurrent() override
+
+ virtual explicit operator bool() const
+ {
+ return bool(m_context);
+ }
+
+ virtual void make_current() override
{
SDL_GL_MakeCurrent(m_window, m_context);
}
- virtual int SetSwapInterval(const int swap) override
+ virtual bool set_swap_interval(const int swap) override
{
- return SDL_GL_SetSwapInterval(swap);
+ return 0 == SDL_GL_SetSwapInterval(swap);
}
- virtual const char *LastErrorMsg() override
+ virtual const char *last_error_message() override
{
- if (m_error[0] == 0)
- return nullptr;
+ if (!m_error.empty())
+ return m_error.c_str();
else
- return m_error;
+ return nullptr;
}
- virtual void *getProcAddress(const char *proc) override
+
+ virtual void *get_proc_address(const char *proc) override
{
return SDL_GL_GetProcAddress(proc);
}
- virtual void SwapBuffer() override
+ virtual void swap_buffer() override
{
SDL_GL_SwapWindow(m_window);
}
private:
SDL_GLContext m_context;
- SDL_Window *m_window;
- char m_error[256];
+ SDL_Window *const m_window;
+ std::string m_error;
};
-#endif // __SDL_GL_CONTEXT__
+#endif // MAME_RENDER_SDLGLCONTEXT_H