qemu-e2k/include/ui/egl-helpers.h
Gerd Hoffmann d2329237af ui/egl: fix framebuffer reads
Fix egl_fb_read() to use the (destination) surface size instead of the
(source) framebuffer source for glReadPixels.  Pass the DisplaySurface
instead of the pixeldata pointer to egl_fb_read() to make this possible.

With that in place framebuffer reads work fine even if the surface and
framebuffer sizes don't match, so we can remove the guest-triggerable
asserts in egl_scanout_flush().

Buglink: https://bugzilla.redhat.com//show_bug.cgi?id=1749659
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190909073911.24787-1-kraxel@redhat.com
2019-09-17 13:42:02 +02:00

56 lines
1.7 KiB
C

#ifndef EGL_HELPERS_H
#define EGL_HELPERS_H
#include <epoxy/gl.h>
#include <epoxy/egl.h>
#include <gbm.h>
#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_OPENGL_DMABUF
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);
int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode);
int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode);
EGLContext qemu_egl_init_ctx(void);
#endif /* EGL_HELPERS_H */