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renderer-native: Turn dumb buffer into a simple type

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Make dumb buffer creation/destruction reusable by introducing a
MetaDumbBuffer type (private to meta-renderer-native.c). This will
later be used for software based fallback paths for copying render GPU
buffers onto secondary GPUs.

https://bugzilla.gnome.org/show_bug.cgi?id=785381
This commit is contained in:
Jonas Ådahl 2017-07-24 15:38:46 +08:00
parent e45d7f70e8
commit 5c53284bde
1 changed files with 49 additions and 31 deletions
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80
src/backends/native/meta-renderer-native.c
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@ -96,6 +96,14 @@ typedef struct _MetaRendererNativeGpuData
gboolean no_add_fb2;
} MetaRendererNativeGpuData;
typedef struct _MetaDumbBuffer
{
uint32_t fb_id;
uint32_t handle;
void *map;
uint64_t map_size;
} MetaDumbBuffer;
typedef struct _MetaOnscreenNative
{
MetaGpuKms *gpu_kms;
@ -112,12 +120,7 @@ typedef struct _MetaOnscreenNative
struct {
EGLStreamKHR stream;
struct {
uint32_t fb_id;
uint32_t handle;
void *map;
uint64_t map_size;
} dumb_fb;
MetaDumbBuffer dumb_fb;
} egl;
#endif
@ -161,6 +164,18 @@ G_DEFINE_TYPE_WITH_CODE (MetaRendererNative,
static const CoglWinsysEGLVtable _cogl_winsys_egl_vtable;
static const CoglWinsysVtable *parent_vtable;
static void
release_dumb_fb (MetaDumbBuffer *dumb_fb,
MetaGpuKms *gpu_kms);
static gboolean
init_dumb_fb (MetaDumbBuffer *dumb_fb,
MetaGpuKms *gpu_kms,
int width,
int height,
uint32_t format,
GError **error);
static void
meta_renderer_native_gpu_data_free (MetaRendererNativeGpuData *renderer_gpu_data)
{
@ -1179,14 +1194,15 @@ meta_renderer_native_create_surface_egl_device (MetaRendererNative *renderer_nat
}
static gboolean
init_dumb_fb (MetaOnscreenNative *onscreen_native,
int width,
int height,
GError **error)
init_dumb_fb (MetaDumbBuffer *dumb_fb,
MetaGpuKms *gpu_kms,
int width,
int height,
uint32_t format,
GError **error)
{
MetaRendererNativeGpuData *renderer_gpu_data;
MetaGpuKms *gpu_kms = onscreen_native->gpu_kms;
MetaRendererNative *renderer_native = meta_renderer_native_from_gpu (gpu_kms);
MetaRendererNativeGpuData *renderer_gpu_data;
struct drm_mode_create_dumb create_arg;
struct drm_mode_destroy_dumb destroy_arg;
struct drm_mode_map_dumb map_arg;
@ -1210,17 +1226,15 @@ init_dumb_fb (MetaOnscreenNative *onscreen_native,
goto err_ioctl;
}
renderer_gpu_data =
meta_renderer_native_get_gpu_data (renderer_native,
onscreen_native->gpu_kms);
renderer_gpu_data = meta_renderer_native_get_gpu_data (renderer_native,
gpu_kms);
if (!renderer_gpu_data->no_add_fb2)
{
uint32_t handles[4] = { create_arg.handle, };
uint32_t pitches[4] = { create_arg.pitch, };
uint32_t offsets[4] = { 0 };
if (drmModeAddFB2 (kms_fd, width, height,
GBM_FORMAT_XRGB8888,
if (drmModeAddFB2 (kms_fd, width, height, format,
handles, pitches, offsets,
&fb_id, 0) != 0)
{
@ -1271,10 +1285,10 @@ init_dumb_fb (MetaOnscreenNative *onscreen_native,
goto err_mmap;
}
onscreen_native->egl.dumb_fb.fb_id = fb_id;
onscreen_native->egl.dumb_fb.handle = create_arg.handle;
onscreen_native->egl.dumb_fb.map = map;
onscreen_native->egl.dumb_fb.map_size = create_arg.size;
dumb_fb->fb_id = fb_id;
dumb_fb->handle = create_arg.handle;
dumb_fb->map = map;
dumb_fb->map_size = create_arg.size;
return TRUE;
@ -1293,25 +1307,24 @@ err_ioctl:
}
static void
release_dumb_fb (MetaOnscreenNative *onscreen_native)
release_dumb_fb (MetaDumbBuffer *dumb_fb,
MetaGpuKms *gpu_kms)
{
MetaGpuKms *gpu_kms = onscreen_native->gpu_kms;
struct drm_mode_destroy_dumb destroy_arg;
int kms_fd;
if (!onscreen_native->egl.dumb_fb.map)
if (!dumb_fb->map)
return;
munmap (onscreen_native->egl.dumb_fb.map,
onscreen_native->egl.dumb_fb.map_size);
onscreen_native->egl.dumb_fb.map = NULL;
munmap (dumb_fb->map, dumb_fb->map_size);
dumb_fb->map = NULL;
kms_fd = meta_gpu_kms_get_fd (gpu_kms);
drmModeRmFB (kms_fd, onscreen_native->egl.dumb_fb.fb_id);
drmModeRmFB (kms_fd, dumb_fb->fb_id);
destroy_arg = (struct drm_mode_destroy_dumb) {
.handle = onscreen_native->egl.dumb_fb.handle
.handle = dumb_fb->handle
};
drmIoctl (kms_fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
}
@ -1402,7 +1415,11 @@ meta_onscreen_native_allocate (CoglOnscreen *onscreen,
break;
#ifdef HAVE_EGL_DEVICE
case META_RENDERER_NATIVE_MODE_EGL_DEVICE:
if (!init_dumb_fb (onscreen_native, width, height, error))
if (!init_dumb_fb (&onscreen_native->egl.dumb_fb,
onscreen_native->gpu_kms,
width, height,
GBM_FORMAT_XRGB8888,
error))
return FALSE;
view = onscreen_native->view;
@ -1468,7 +1485,8 @@ meta_renderer_native_release_onscreen (CoglOnscreen *onscreen)
break;
#ifdef HAVE_EGL_DEVICE
case META_RENDERER_NATIVE_MODE_EGL_DEVICE:
release_dumb_fb (onscreen_native);
release_dumb_fb (&onscreen_native->egl.dumb_fb,
onscreen_native->gpu_kms);
if (onscreen_native->egl.stream != EGL_NO_STREAM_KHR)
{
MetaBackend *backend = meta_get_backend ();