mirror of https://gitee.com/openkylin/qemu.git
126 lines
3.6 KiB
C
126 lines
3.6 KiB
C
#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "sysemu/sysemu.h"
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#include "ui/console.h"
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#include "ui/egl-helpers.h"
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#include "ui/egl-context.h"
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typedef struct egl_dpy {
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DisplayChangeListener dcl;
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DisplaySurface *ds;
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egl_fb guest_fb;
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egl_fb blit_fb;
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bool y_0_top;
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} egl_dpy;
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/* ------------------------------------------------------------------ */
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static void egl_refresh(DisplayChangeListener *dcl)
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{
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graphic_hw_update(dcl->con);
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}
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static void egl_gfx_update(DisplayChangeListener *dcl,
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int x, int y, int w, int h)
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{
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}
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static void egl_gfx_switch(DisplayChangeListener *dcl,
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struct DisplaySurface *new_surface)
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{
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egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
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edpy->ds = new_surface;
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}
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static void egl_scanout_disable(DisplayChangeListener *dcl)
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{
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egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
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egl_fb_destroy(&edpy->guest_fb);
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egl_fb_destroy(&edpy->blit_fb);
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}
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static void egl_scanout_texture(DisplayChangeListener *dcl,
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uint32_t backing_id,
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bool backing_y_0_top,
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uint32_t backing_width,
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uint32_t backing_height,
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uint32_t x, uint32_t y,
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uint32_t w, uint32_t h)
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{
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egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
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edpy->y_0_top = backing_y_0_top;
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/* source framebuffer */
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egl_fb_setup_for_tex(&edpy->guest_fb,
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backing_width, backing_height, backing_id, false);
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/* dest framebuffer */
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if (edpy->blit_fb.width != backing_width ||
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edpy->blit_fb.height != backing_height) {
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egl_fb_destroy(&edpy->blit_fb);
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egl_fb_setup_new_tex(&edpy->blit_fb, backing_width, backing_height);
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}
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}
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static void egl_scanout_flush(DisplayChangeListener *dcl,
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uint32_t x, uint32_t y,
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uint32_t w, uint32_t h)
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{
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egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
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if (!edpy->guest_fb.texture || !edpy->ds) {
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return;
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}
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assert(surface_width(edpy->ds) == edpy->guest_fb.width);
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assert(surface_height(edpy->ds) == edpy->guest_fb.height);
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assert(surface_format(edpy->ds) == PIXMAN_x8r8g8b8);
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egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top);
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egl_fb_read(surface_data(edpy->ds), &edpy->blit_fb);
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dpy_gfx_update(edpy->dcl.con, x, y, w, h);
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}
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static const DisplayChangeListenerOps egl_ops = {
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.dpy_name = "egl-headless",
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.dpy_refresh = egl_refresh,
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.dpy_gfx_update = egl_gfx_update,
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.dpy_gfx_switch = egl_gfx_switch,
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.dpy_gl_ctx_create = qemu_egl_create_context,
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.dpy_gl_ctx_destroy = qemu_egl_destroy_context,
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.dpy_gl_ctx_make_current = qemu_egl_make_context_current,
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.dpy_gl_ctx_get_current = qemu_egl_get_current_context,
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.dpy_gl_scanout_disable = egl_scanout_disable,
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.dpy_gl_scanout_texture = egl_scanout_texture,
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.dpy_gl_update = egl_scanout_flush,
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};
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void egl_headless_init(void)
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{
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QemuConsole *con;
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egl_dpy *edpy;
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int idx;
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if (egl_rendernode_init(NULL) < 0) {
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error_report("egl: render node init failed");
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exit(1);
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}
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for (idx = 0;; idx++) {
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con = qemu_console_lookup_by_index(idx);
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if (!con || !qemu_console_is_graphic(con)) {
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break;
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}
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edpy = g_new0(egl_dpy, 1);
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edpy->dcl.con = con;
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edpy->dcl.ops = &egl_ops;
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register_displaychangelistener(&edpy->dcl);
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}
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}
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