diff options
Diffstat (limited to 'ui')
| -rw-r--r-- | ui/Makefile.objs | 3 | ||||
| -rw-r--r-- | ui/egl-helpers.c | 148 |
2 files changed, 151 insertions, 0 deletions
diff --git a/ui/Makefile.objs b/ui/Makefile.objs index 029a42a..5c46870 100644 --- a/ui/Makefile.objs +++ b/ui/Makefile.objs @@ -30,11 +30,14 @@ sdl.mo-cflags := $(SDL_CFLAGS) ifeq ($(CONFIG_OPENGL),y) common-obj-y += shader.o common-obj-y += console-gl.o +common-obj-y += egl-helpers.o endif gtk.o-cflags := $(GTK_CFLAGS) $(VTE_CFLAGS) shader.o-cflags += $(OPENGL_CFLAGS) console-gl.o-cflags += $(OPENGL_CFLAGS) +egl-helpers.o-cflags += $(OPENGL_CFLAGS) shader.o-libs += $(OPENGL_LIBS) console-gl.o-libs += $(OPENGL_LIBS) +egl-helpers.o-libs += $(OPENGL_LIBS) diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c new file mode 100644 index 0000000..87d77af --- /dev/null +++ b/ui/egl-helpers.c @@ -0,0 +1,148 @@ +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdbool.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <fcntl.h> +#include <glob.h> + +#include "ui/egl-helpers.h" + +EGLDisplay *qemu_egl_display; +EGLConfig qemu_egl_config; + +/* ---------------------------------------------------------------------- */ + +static bool egl_gles; +static int egl_debug; + +#define egl_dbg(_x ...) \ + do { \ + if (egl_debug) { \ + fprintf(stderr, "egl: " _x); \ + } \ + } while (0); + +/* ---------------------------------------------------------------------- */ + +EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win) +{ + EGLSurface esurface; + EGLBoolean b; + + egl_dbg("eglCreateWindowSurface (x11 win id 0x%lx) ...\n", + (unsigned long) win); + esurface = eglCreateWindowSurface(qemu_egl_display, + qemu_egl_config, + (EGLNativeWindowType)win, NULL); + if (esurface == EGL_NO_SURFACE) { + fprintf(stderr, "egl: eglCreateWindowSurface failed\n"); + return NULL; + } + + b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx); + if (b == EGL_FALSE) { + fprintf(stderr, "egl: eglMakeCurrent failed\n"); + return NULL; + } + + return esurface; +} + +/* ---------------------------------------------------------------------- */ + +int qemu_egl_init_dpy(EGLNativeDisplayType dpy, bool gles, bool debug) +{ + static const EGLint conf_att_gl[] = { + EGL_SURFACE_TYPE, EGL_WINDOW_BIT, + EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, + EGL_RED_SIZE, 5, + EGL_GREEN_SIZE, 5, + EGL_BLUE_SIZE, 5, + EGL_ALPHA_SIZE, 0, + EGL_NONE, + }; + static const EGLint conf_att_gles[] = { + EGL_SURFACE_TYPE, EGL_WINDOW_BIT, + EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, + EGL_RED_SIZE, 5, + EGL_GREEN_SIZE, 5, + EGL_BLUE_SIZE, 5, + EGL_ALPHA_SIZE, 0, + EGL_NONE, + }; + EGLint major, minor; + EGLBoolean b; + EGLint n; + + if (debug) { + egl_debug = 1; + setenv("EGL_LOG_LEVEL", "debug", true); + setenv("LIBGL_DEBUG", "verbose", true); + } + + egl_dbg("eglGetDisplay (dpy %p) ...\n", dpy); + qemu_egl_display = eglGetDisplay(dpy); + if (qemu_egl_display == EGL_NO_DISPLAY) { + fprintf(stderr, "egl: eglGetDisplay failed\n"); + return -1; + } + + egl_dbg("eglInitialize ...\n"); + b = eglInitialize(qemu_egl_display, &major, &minor); + if (b == EGL_FALSE) { + fprintf(stderr, "egl: eglInitialize failed\n"); + return -1; + } + + egl_dbg("eglBindAPI ...\n"); + b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API); + if (b == EGL_FALSE) { + fprintf(stderr, "egl: eglBindAPI failed\n"); + return -1; + } + + egl_dbg("eglChooseConfig ...\n"); + b = eglChooseConfig(qemu_egl_display, + gles ? conf_att_gles : conf_att_gl, + &qemu_egl_config, 1, &n); + if (b == EGL_FALSE || n != 1) { + fprintf(stderr, "egl: eglChooseConfig failed\n"); + return -1; + } + + egl_gles = gles; + return 0; +} + +EGLContext qemu_egl_init_ctx(void) +{ + static const EGLint ctx_att_gl[] = { + EGL_NONE + }; + static const EGLint ctx_att_gles[] = { + EGL_CONTEXT_CLIENT_VERSION, 2, + EGL_NONE + }; + + EGLContext ectx; + EGLBoolean b; + + egl_dbg("eglCreateContext ...\n"); + ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT, + egl_gles ? ctx_att_gles : ctx_att_gl); + if (ectx == EGL_NO_CONTEXT) { + fprintf(stderr, "egl: eglCreateContext failed\n"); + return NULL; + } + + b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx); + if (b == EGL_FALSE) { + fprintf(stderr, "egl: eglMakeCurrent failed\n"); + return NULL; + } + + return ectx; +} |