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#include "qemu/osdep.h"
#include "qemu-common.h"
#include "sysemu/sysemu.h"
#include "ui/console.h"
#include "ui/egl-helpers.h"
#include "ui/egl-context.h"
#include "ui/shader.h"
typedef struct egl_dpy {
DisplayChangeListener dcl;
DisplaySurface *ds;
QemuGLShader *gls;
egl_fb guest_fb;
egl_fb cursor_fb;
egl_fb blit_fb;
bool y_0_top;
uint32_t pos_x;
uint32_t pos_y;
} egl_dpy;
/* ------------------------------------------------------------------ */
static void egl_refresh(DisplayChangeListener *dcl)
{
graphic_hw_update(dcl->con);
}
static void egl_gfx_update(DisplayChangeListener *dcl,
int x, int y, int w, int h)
{
}
static void egl_gfx_switch(DisplayChangeListener *dcl,
struct DisplaySurface *new_surface)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
edpy->ds = new_surface;
}
static QEMUGLContext egl_create_context(DisplayChangeListener *dcl,
QEMUGLParams *params)
{
eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
qemu_egl_rn_ctx);
return qemu_egl_create_context(dcl, params);
}
static void egl_scanout_disable(DisplayChangeListener *dcl)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
egl_fb_destroy(&edpy->guest_fb);
egl_fb_destroy(&edpy->blit_fb);
}
static void egl_scanout_texture(DisplayChangeListener *dcl,
uint32_t backing_id,
bool backing_y_0_top,
uint32_t backing_width,
uint32_t backing_height,
uint32_t x, uint32_t y,
uint32_t w, uint32_t h)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
edpy->y_0_top = backing_y_0_top;
/* source framebuffer */
egl_fb_setup_for_tex(&edpy->guest_fb,
backing_width, backing_height, backing_id, false);
/* dest framebuffer */
if (edpy->blit_fb.width != backing_width ||
edpy->blit_fb.height != backing_height) {
egl_fb_destroy(&edpy->blit_fb);
egl_fb_setup_new_tex(&edpy->blit_fb, backing_width, backing_height);
}
}
static void egl_scanout_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf)
{
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
}
egl_scanout_texture(dcl, dmabuf->texture,
false, dmabuf->width, dmabuf->height,
0, 0, dmabuf->width, dmabuf->height);
}
static void egl_cursor_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf, bool have_hot,
uint32_t hot_x, uint32_t hot_y)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
if (dmabuf) {
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
}
egl_fb_setup_for_tex(&edpy->cursor_fb, dmabuf->width, dmabuf->height,
dmabuf->texture, false);
} else {
egl_fb_destroy(&edpy->cursor_fb);
}
}
static void egl_cursor_position(DisplayChangeListener *dcl,
uint32_t pos_x, uint32_t pos_y)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
edpy->pos_x = pos_x;
edpy->pos_y = pos_y;
}
static void egl_release_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf)
{
egl_dmabuf_release_texture(dmabuf);
}
static void egl_scanout_flush(DisplayChangeListener *dcl,
uint32_t x, uint32_t y,
uint32_t w, uint32_t h)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
if (!edpy->guest_fb.texture || !edpy->ds) {
return;
}
assert(surface_width(edpy->ds) == edpy->guest_fb.width);
assert(surface_height(edpy->ds) == edpy->guest_fb.height);
assert(surface_format(edpy->ds) == PIXMAN_x8r8g8b8);
if (edpy->cursor_fb.texture) {
/* have cursor -> render using textures */
egl_texture_blit(edpy->gls, &edpy->blit_fb, &edpy->guest_fb,
!edpy->y_0_top);
egl_texture_blend(edpy->gls, &edpy->blit_fb, &edpy->cursor_fb,
!edpy->y_0_top, edpy->pos_x, edpy->pos_y,
1.0, 1.0);
} else {
/* no cursor -> use simple framebuffer blit */
egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top);
}
egl_fb_read(surface_data(edpy->ds), &edpy->blit_fb);
dpy_gfx_update(edpy->dcl.con, x, y, w, h);
}
static const DisplayChangeListenerOps egl_ops = {
.dpy_name = "egl-headless",
.dpy_refresh = egl_refresh,
.dpy_gfx_update = egl_gfx_update,
.dpy_gfx_switch = egl_gfx_switch,
.dpy_gl_ctx_create = egl_create_context,
.dpy_gl_ctx_destroy = qemu_egl_destroy_context,
.dpy_gl_ctx_make_current = qemu_egl_make_context_current,
.dpy_gl_ctx_get_current = qemu_egl_get_current_context,
.dpy_gl_scanout_disable = egl_scanout_disable,
.dpy_gl_scanout_texture = egl_scanout_texture,
.dpy_gl_scanout_dmabuf = egl_scanout_dmabuf,
.dpy_gl_cursor_dmabuf = egl_cursor_dmabuf,
.dpy_gl_cursor_position = egl_cursor_position,
.dpy_gl_release_dmabuf = egl_release_dmabuf,
.dpy_gl_update = egl_scanout_flush,
};
static void early_egl_headless_init(DisplayOptions *opts)
{
display_opengl = 1;
}
static void egl_headless_init(DisplayState *ds, DisplayOptions *opts)
{
DisplayGLMode mode = opts->has_gl ? opts->gl : DISPLAYGL_MODE_ON;
QemuConsole *con;
egl_dpy *edpy;
int idx;
if (egl_rendernode_init(opts->u.egl_headless.rendernode, mode) < 0) {
error_report("egl: render node init failed");
exit(1);
}
for (idx = 0;; idx++) {
con = qemu_console_lookup_by_index(idx);
if (!con || !qemu_console_is_graphic(con)) {
break;
}
edpy = g_new0(egl_dpy, 1);
edpy->dcl.con = con;
edpy->dcl.ops = &egl_ops;
edpy->gls = qemu_gl_init_shader();
register_displaychangelistener(&edpy->dcl);
}
}
static QemuDisplay qemu_display_egl = {
.type = DISPLAY_TYPE_EGL_HEADLESS,
.early_init = early_egl_headless_init,
.init = egl_headless_init,
};
static void register_egl(void)
{
qemu_display_register(&qemu_display_egl);
}
type_init(register_egl);
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