egl_dri2: add swrast
This enables the egl_dri2 driver to load swrast driver
for software rendering. It could be used when hardware
dri2 drivers are not available, such as in VM.
Signed-off-by: Haitao Feng <haitao.feng@intel.com>
diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index e0d2db9..99f87f0 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -276,6 +276,17 @@
{ NULL, 0, 0 }
};
+static struct dri2_extension_match swrast_driver_extensions[] = {
+ { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
+ { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
+ { NULL }
+};
+
+static struct dri2_extension_match swrast_core_extensions[] = {
+ { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
+ { NULL }
+};
+
static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
struct dri2_extension_match *matches,
@@ -363,10 +374,17 @@
return EGL_FALSE;
}
- if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
- dlclose(dri2_dpy->driver);
- return EGL_FALSE;
- }
+ if (strcmp(dri2_dpy->driver_name, "swrast") == 0) {
+ if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
+ dlclose(dri2_dpy->driver);
+ return EGL_FALSE;
+ }
+ } else {
+ if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
+ dlclose(dri2_dpy->driver);
+ return EGL_FALSE;
+ }
+ }
return EGL_TRUE;
}
@@ -379,9 +397,17 @@
unsigned int api_mask;
dri2_dpy = disp->DriverData;
- dri2_dpy->dri_screen =
- dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
- &dri2_dpy->driver_configs, disp);
+
+ if (dri2_dpy->dri2) {
+ dri2_dpy->dri_screen =
+ dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
+ &dri2_dpy->driver_configs, disp);
+ } else {
+ assert(dri2_dpy->swrast);
+ dri2_dpy->dri_screen =
+ dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
+ &dri2_dpy->driver_configs, disp);
+ }
if (dri2_dpy->dri_screen == NULL) {
_eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
@@ -389,13 +415,28 @@
}
extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
- if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
- goto cleanup_dri_screen;
+
+ if (dri2_dpy->dri2) {
+ if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
+ goto cleanup_dri_screen;
+ } else {
+ assert(dri2_dpy->swrast);
+ if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
+ goto cleanup_dri_screen;
+ }
- if (dri2_dpy->dri2->base.version >= 2)
- api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
- else
- api_mask = 1 << __DRI_API_OPENGL;
+ if (dri2_dpy->dri2) {
+ if (dri2_dpy->dri2->base.version >= 2)
+ api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
+ else
+ api_mask = 1 << __DRI_API_OPENGL;
+ } else {
+ assert(dri2_dpy->swrast);
+ if (dri2_dpy->swrast->base.version >= 2)
+ api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
+ else
+ api_mask = 1 << __DRI_API_OPENGL;
+ }
disp->ClientAPIs = 0;
if (api_mask & (1 <<__DRI_API_OPENGL))
@@ -405,10 +446,19 @@
if (api_mask & (1 << __DRI_API_GLES2))
disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
- if (dri2_dpy->dri2->base.version >= 2) {
- disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
- disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
- disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
+ if (dri2_dpy->dri2) {
+ if (dri2_dpy->dri2->base.version >= 2) {
+ disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
+ disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
+ disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
+ }
+ } else {
+ assert(dri2_dpy->swrast);
+ if (dri2_dpy->swrast->base.version >= 2) {
+ disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
+ disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
+ disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
+ }
}
return EGL_TRUE;
@@ -465,7 +515,8 @@
_eglCleanupDisplay(disp);
dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
- close(dri2_dpy->fd);
+ if (dri2_dpy->fd)
+ close(dri2_dpy->fd);
dlclose(dri2_dpy->driver);
if (disp->PlatformDisplay == NULL)
xcb_disconnect(dri2_dpy->conn);
@@ -539,23 +590,45 @@
else
dri_config = NULL;
- if (dri2_dpy->dri2->base.version >= 2) {
- dri2_ctx->dri_context =
- dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
- api,
- dri_config,
- dri2_ctx_shared ?
- dri2_ctx_shared->dri_context : NULL,
- dri2_ctx);
- } else if (api == __DRI_API_OPENGL) {
- dri2_ctx->dri_context =
- dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
- dri_config,
- dri2_ctx_shared ?
- dri2_ctx_shared->dri_context : NULL,
- dri2_ctx);
+ if (dri2_dpy->dri2) {
+ if (dri2_dpy->dri2->base.version >= 2) {
+ dri2_ctx->dri_context =
+ dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
+ api,
+ dri_config,
+ dri2_ctx_shared ?
+ dri2_ctx_shared->dri_context : NULL,
+ dri2_ctx);
+ } else if (api == __DRI_API_OPENGL) {
+ dri2_ctx->dri_context =
+ dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
+ dri_config,
+ dri2_ctx_shared ?
+ dri2_ctx_shared->dri_context : NULL,
+ dri2_ctx);
+ } else {
+ /* fail */
+ }
} else {
- /* fail */
+ assert(dri2_dpy->swrast);
+ if (dri2_dpy->swrast->base.version >= 2) {
+ dri2_ctx->dri_context =
+ dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
+ api,
+ dri_config,
+ dri2_ctx_shared ?
+ dri2_ctx_shared->dri_context : NULL,
+ dri2_ctx);
+ } else if (api == __DRI_API_OPENGL) {
+ dri2_ctx->dri_context =
+ dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
+ dri_config,
+ dri2_ctx_shared ?
+ dri2_ctx_shared->dri_context : NULL,
+ dri2_ctx);
+ } else {
+ /* fail */
+ }
}
if (!dri2_ctx->dri_context)