qemu-e2k/include/ui/egl-helpers.h
Akihiko Odaki bc6a3565c8 configure: Improve OpenGL dependency detections
This has the following visible changes:

- GBM is required only for OpenGL dma-buf.
- X11 is explicitly required by gtk-egl.
- EGL is now mandatory for the OpenGL displays.

The last one needs some detailed description. Before this change,
EGL was tested only for OpenGL dma-buf with the check of
EGL_MESA_image_dma_buf_export. However, all of the OpenGL
displays depend on EGL and EGL_MESA_image_dma_buf_export is always
defined by epoxy's EGL interface.
Therefore, it makes more sense to always check the presence of EGL
and say the OpenGL displays are available along with OpenGL dma-buf
if it is present.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210223060307.87736-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-03-04 09:35:30 +01:00

64 lines
1.8 KiB
C

#ifndef EGL_HELPERS_H
#define EGL_HELPERS_H
#include <epoxy/gl.h>
#include <epoxy/egl.h>
#ifdef CONFIG_GBM
#include <gbm.h>
#endif
#include "ui/console.h"
#include "ui/shader.h"
extern EGLDisplay *qemu_egl_display;
extern EGLConfig qemu_egl_config;
extern DisplayGLMode qemu_egl_mode;
typedef struct egl_fb {
int width;
int height;
GLuint texture;
GLuint framebuffer;
bool delete_texture;
} egl_fb;
void egl_fb_destroy(egl_fb *fb);
void egl_fb_setup_default(egl_fb *fb, int width, int height);
void egl_fb_setup_for_tex(egl_fb *fb, int width, int height,
GLuint texture, bool delete);
void egl_fb_setup_new_tex(egl_fb *fb, int width, int height);
void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip);
void egl_fb_read(DisplaySurface *dst, egl_fb *src);
void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip);
void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip,
int x, int y, double scale_x, double scale_y);
#ifdef CONFIG_GBM
extern int qemu_egl_rn_fd;
extern struct gbm_device *qemu_egl_rn_gbm_dev;
extern EGLContext qemu_egl_rn_ctx;
int egl_rendernode_init(const char *rendernode, DisplayGLMode mode);
int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc,
EGLuint64KHR *modifier);
void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf);
void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf);
#endif
EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, EGLNativeWindowType win);
#if defined(CONFIG_X11) || defined(CONFIG_GBM)
int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode);
int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode);
#endif
EGLContext qemu_egl_init_ctx(void);
bool qemu_egl_has_dmabuf(void);
#endif /* EGL_HELPERS_H */