diff options
author | 2016-05-18 13:18:31 +0300 | |
---|---|---|
committer | 2016-05-18 13:42:15 +0300 | |
commit | 437fd90c0250dee670290f9b714253671a990160 (patch) | |
tree | b871786c360704244a07411c69fb58da9ead4a06 /qemu/ui/egl-helpers.c | |
parent | 5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff) |
These changes are the raw update to qemu-2.6.
Collission happened in the following patches:
migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)
The code provided by the patches was already in the upstreamed
version.
Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/ui/egl-helpers.c')
-rw-r--r-- | qemu/ui/egl-helpers.c | 137 |
1 files changed, 129 insertions, 8 deletions
diff --git a/qemu/ui/egl-helpers.c b/qemu/ui/egl-helpers.c index 87d77afaa..558edfdeb 100644 --- a/qemu/ui/egl-helpers.c +++ b/qemu/ui/egl-helpers.c @@ -1,12 +1,6 @@ -#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 "qemu/osdep.h" #include <glob.h> +#include <dirent.h> #include "ui/egl-helpers.h" @@ -27,6 +21,133 @@ static int egl_debug; /* ---------------------------------------------------------------------- */ +#ifdef CONFIG_OPENGL_DMABUF + +int qemu_egl_rn_fd; +struct gbm_device *qemu_egl_rn_gbm_dev; +EGLContext qemu_egl_rn_ctx; + +int qemu_egl_rendernode_open(void) +{ + DIR *dir; + struct dirent *e; + int r, fd; + char *p; + + dir = opendir("/dev/dri"); + if (!dir) { + return -1; + } + + fd = -1; + while ((e = readdir(dir))) { + if (e->d_type != DT_CHR) { + continue; + } + + if (strncmp(e->d_name, "renderD", 7)) { + continue; + } + + r = asprintf(&p, "/dev/dri/%s", e->d_name); + if (r < 0) { + return -1; + } + + r = open(p, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK); + if (r < 0) { + free(p); + continue; + } + fd = r; + free(p); + break; + } + + closedir(dir); + if (fd < 0) { + return -1; + } + return fd; +} + +int egl_rendernode_init(void) +{ + qemu_egl_rn_fd = -1; + + qemu_egl_rn_fd = qemu_egl_rendernode_open(); + if (qemu_egl_rn_fd == -1) { + fprintf(stderr, "egl: no drm render node available\n"); + goto err; + } + + qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd); + if (!qemu_egl_rn_gbm_dev) { + fprintf(stderr, "egl: gbm_create_device failed\n"); + goto err; + } + + qemu_egl_init_dpy((EGLNativeDisplayType)qemu_egl_rn_gbm_dev, false, false); + + if (!epoxy_has_egl_extension(qemu_egl_display, + "EGL_KHR_surfaceless_context")) { + fprintf(stderr, "egl: EGL_KHR_surfaceless_context not supported\n"); + goto err; + } + if (!epoxy_has_egl_extension(qemu_egl_display, + "EGL_MESA_image_dma_buf_export")) { + fprintf(stderr, "egl: EGL_MESA_image_dma_buf_export not supported\n"); + goto err; + } + + qemu_egl_rn_ctx = qemu_egl_init_ctx(); + if (!qemu_egl_rn_ctx) { + fprintf(stderr, "egl: egl_init_ctx failed\n"); + goto err; + } + + return 0; + +err: + if (qemu_egl_rn_gbm_dev) { + gbm_device_destroy(qemu_egl_rn_gbm_dev); + } + if (qemu_egl_rn_fd != -1) { + close(qemu_egl_rn_fd); + } + + return -1; +} + +int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc) +{ + EGLImageKHR image; + EGLint num_planes, fd; + + image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(), + EGL_GL_TEXTURE_2D_KHR, + (EGLClientBuffer)(unsigned long)tex_id, + NULL); + if (!image) { + return -1; + } + + eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc, + &num_planes, NULL); + if (num_planes != 1) { + eglDestroyImageKHR(qemu_egl_display, image); + return -1; + } + eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL); + eglDestroyImageKHR(qemu_egl_display, image); + + return fd; +} + +#endif /* CONFIG_OPENGL_DMABUF */ + +/* ---------------------------------------------------------------------- */ + EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win) { EGLSurface esurface; |