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Add EGL backend

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also fixes #575
This commit is contained in:
UnknownShadow200 2019-03-19 20:00:04 +11:00
parent c7c552e27f
commit 4ea2aca046
1 changed files with 76 additions and 0 deletions
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76
src/Window.c
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@ -663,6 +663,7 @@ void Window_DrawRaw(Rect2D r) {
*#########################################################################################################################*/
#ifdef CC_BUILD_X11
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
@ -2973,4 +2974,79 @@ void GLContext_SetVSync(bool enabled) {
SDL_GL_SetSwapInterval(enabled);
}
#endif
/*########################################################################################################################*
*-------------------------------------------------------EGL OpenGL--------------------------------------------------------*
*#########################################################################################################################*/
#ifdef CC_BUILD_EGL
#include <EGL/egl.h>
static EGLDisplay ctx_display;
static EGLContext ctx_context;
static EGLSurface ctx_surface;
static EGLConfig ctx_config;
static EGLint ctx_numConfig;
static XVisualInfo GLContext_SelectVisual(struct GraphicsMode* mode) {
XVisualInfo info = { 0 };
info.depth = 24;
info.visual = CopyFromParent;
info.visualid = CopyFromParent;
return info;
}
void GLContext_Init(struct GraphicsMode* mode) {
static EGLint attribs[19] = {
EGL_RED_SIZE, 0, EGL_GREEN_SIZE, 0,
EGL_BLUE_SIZE, 0, EGL_ALPHA_SIZE, 0,
EGL_DEPTH_SIZE,0, EGL_STENCIL_SIZE,0,
EGL_COLOR_BUFFER_TYPE, EGL_RGB_BUFFER,
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
EGL_NONE
};
attribs[1] = mode->R; attribs[3] = mode->G;
attribs[5] = mode->B; attribs[7] = mode->A;
attribs[9] = mode->DepthBits;
attribs[11] = mode->StencilBits;
ctx_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
eglInitialize(ctx_display, NULL, NULL);
eglBindAPI(EGL_OPENGL_ES_API);
eglChooseConfig(ctx_display, attribs, &ctx_config, 1, &ctx_numConfig);
EGLint contextAttributes[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
ctx_context = eglCreateContext(ctx_display, ctx_config, EGL_NO_CONTEXT, contextAttributes);
ctx_surface = eglCreateWindowSurface(ctx_display, ctx_config, win_handle, NULL);
eglMakeCurrent(ctx_display, ctx_surface, ctx_surface, ctx_context);\
}
void GLContext_Update(void) {
eglMakeCurrent(ctx_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ctx_context);
eglDestroySurface(ctx_display, ctx_surface);
ctx_surface = eglCreateWindowSurface(ctx_display, ctx_config, win_handle, NULL);
eglMakeCurrent(ctx_display, ctx_surface, ctx_surface, ctx_context);
}
void GLContext_Free(void) {
eglMakeCurrent(ctx_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ctx_context);
eglDestroyContext(ctx_display, ctx_context);
eglDestroySurface(ctx_display, ctx_surface);
eglTerminate(ctx_display);
}
void* GLContext_GetAddress(const char* function) {
return eglGetProcAddress(function);
}
void GLContext_SwapBuffers(void) {
eglSwapBuffers(ctx_display, ctx_surface);
}
void GLContext_SetVSync(bool enabled) {
eglSwapInterval(ctx_display, enabled ? 1 : 0);
}
#endif
#endif