From eac4c984dfe5eebb73b094aaf2ed5ab37b6e8fdf Mon Sep 17 00:00:00 2001 From: karroffel Date: Mon, 4 Dec 2017 13:41:34 +0100 Subject: add GLES 2 renderer for 2D This commit adds a new rendering backend, GLES2, and adds a project setting to enable it. Currently this backend can only be used on the X11 platform, but integrating into other platforms is planned. --- platform/x11/context_gl_x11.cpp | 50 ++++++++++++++++++++++++++++------------- 1 file changed, 34 insertions(+), 16 deletions(-) (limited to 'platform/x11/context_gl_x11.cpp') diff --git a/platform/x11/context_gl_x11.cpp b/platform/x11/context_gl_x11.cpp index 20f2212861..7a659a2734 100644 --- a/platform/x11/context_gl_x11.cpp +++ b/platform/x11/context_gl_x11.cpp @@ -146,20 +146,38 @@ Error ContextGL_X11::initialize() { int (*oldHandler)(Display *, XErrorEvent *) = XSetErrorHandler(&ctxErrorHandler); - if (!opengl_3_context) { - //oldstyle context: - p->glx_context = glXCreateContext(x11_display, vi, 0, GL_TRUE); - } else { - static int context_attribs[] = { - GLX_CONTEXT_MAJOR_VERSION_ARB, 3, - GLX_CONTEXT_MINOR_VERSION_ARB, 3, - GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB /*|GLX_CONTEXT_DEBUG_BIT_ARB*/, - None - }; - - p->glx_context = glXCreateContextAttribsARB(x11_display, fbc[0], NULL, true, context_attribs); - ERR_EXPLAIN("Could not obtain an OpenGL 3.3 context!"); - ERR_FAIL_COND_V(ctxErrorOccurred || !p->glx_context, ERR_UNCONFIGURED); + switch (context_type) { + case GLES_2_0_COMPATIBLE: + case OLDSTYLE: { + p->glx_context = glXCreateContext(x11_display, vi, 0, GL_TRUE); + } break; + /* + case ContextType::GLES_2_0_COMPATIBLE: { + + static int context_attribs[] = { + GLX_CONTEXT_MAJOR_VERSION_ARB, 3, + GLX_CONTEXT_MINOR_VERSION_ARB, 0, + None + }; + + p->glx_context = glXCreateContextAttribsARB(x11_display, fbc[0], NULL, true, context_attribs); + ERR_EXPLAIN("Could not obtain an OpenGL 3.0 context!"); + ERR_FAIL_COND_V(!p->glx_context, ERR_UNCONFIGURED); + } break; + */ + case GLES_3_0_COMPATIBLE: { + + static int context_attribs[] = { + GLX_CONTEXT_MAJOR_VERSION_ARB, 3, + GLX_CONTEXT_MINOR_VERSION_ARB, 3, + GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB /*|GLX_CONTEXT_DEBUG_BIT_ARB*/, + None + }; + + p->glx_context = glXCreateContextAttribsARB(x11_display, fbc[0], NULL, true, context_attribs); + ERR_EXPLAIN("Could not obtain an OpenGL 3.3 context!"); + ERR_FAIL_COND_V(ctxErrorOccurred || !p->glx_context, ERR_UNCONFIGURED); + } break; } XSync(x11_display, False); @@ -229,13 +247,13 @@ bool ContextGL_X11::is_using_vsync() const { return use_vsync; } -ContextGL_X11::ContextGL_X11(::Display *p_x11_display, ::Window &p_x11_window, const OS::VideoMode &p_default_video_mode, bool p_opengl_3_context) : +ContextGL_X11::ContextGL_X11(::Display *p_x11_display, ::Window &p_x11_window, const OS::VideoMode &p_default_video_mode, ContextType p_context_type) : x11_window(p_x11_window) { default_video_mode = p_default_video_mode; x11_display = p_x11_display; - opengl_3_context = p_opengl_3_context; + context_type = p_context_type; double_buffer = false; direct_render = false; -- cgit v1.2.3