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vulkan/swapper: add get_surface_rectangles

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Retrieve the input, output and covered rectangles.
This commit is contained in:
Matthew Waters 2020-02-17 15:07:10 +11:00 committed by GStreamer Merge Bot
parent af19fa94f4
commit 52a9135a2b
2 changed files with 61 additions and 9 deletions
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64
gst-libs/gst/vulkan/gstvkswapper.c
View file

@ -82,6 +82,9 @@ struct _GstVulkanSwapperPrivate
/* source sizes accounting for all aspect ratios */
guint dar_width;
guint dar_height;
GstVideoRectangle surface_location;
GstVideoRectangle display_rect;
};
enum
@ -738,6 +741,8 @@ _allocate_swapchain (GstVulkanSwapper * swapper, GstCaps * caps,
swapchain_dims = priv->surf_props.currentExtent;
priv->any_current_extent = FALSE;
}
priv->surface_location.w = swapchain_dims.width;
priv->surface_location.h = swapchain_dims.height;
/* If mailbox mode is available, use it, as is the lowest-latency non-
* tearing mode. If not, try IMMEDIATE which will usually be available,
@ -1007,7 +1012,7 @@ _build_render_buffer_cmd (GstVulkanSwapper * swapper, guint32 swap_idx,
GstMemory *in_mem;
GstVulkanImageMemory *swap_img;
GstVulkanCommandBuffer *cmd_buf;
GstVideoRectangle src, dst, rslt;
GstVideoRectangle src;
VkResult err;
g_return_val_if_fail (swap_idx < priv->n_swap_chain_images, FALSE);
@ -1063,15 +1068,18 @@ _build_render_buffer_cmd (GstVulkanSwapper * swapper, guint32 swap_idx,
src.w = priv->dar_width;
src.h = priv->dar_height;
dst.x = dst.y = 0;
dst.w = gst_vulkan_image_memory_get_width (swap_img);
dst.h = gst_vulkan_image_memory_get_height (swap_img);
g_assert (priv->surface_location.w ==
gst_vulkan_image_memory_get_width (swap_img));
g_assert (priv->surface_location.h ==
gst_vulkan_image_memory_get_height (swap_img));
gst_video_sink_center_rect (src, dst, &rslt, priv->force_aspect_ratio);
gst_video_sink_center_rect (src, priv->surface_location, &priv->display_rect,
priv->force_aspect_ratio);
GST_TRACE_OBJECT (swapper, "rendering into result rectangle %ux%u+%u,%u "
"src %ux%u dst %ux%u", rslt.w, rslt.h, rslt.x, rslt.y, src.w, src.h,
dst.w, dst.h);
"src %ux%u dst %ux%u", priv->display_rect.w, priv->display_rect.h,
priv->display_rect.x, priv->display_rect.y, src.w, src.h,
priv->surface_location.w, priv->surface_location.h);
in_mem = gst_buffer_peek_memory (buffer, 0);
{
@ -1095,8 +1103,8 @@ _build_render_buffer_cmd (GstVulkanSwapper * swapper, guint32 swap_idx,
.layerCount = 1,
},
.dstOffsets = {
{rslt.x, rslt.y, 0},
{rslt.x + rslt.w, rslt.y + rslt.h, 1},
{priv->display_rect.x, priv->display_rect.y, 0},
{priv->display_rect.x + priv->display_rect.w, priv->display_rect.y + priv->display_rect.h, 1},
},
};
VkImageMemoryBarrier image_memory_barrier = {
@ -1424,3 +1432,41 @@ _on_window_resize (GstVulkanWindow * window, guint width, guint height,
}
RENDER_UNLOCK (swapper);
}
/**
* gst_vulkan_swapper_get_surface_rectangles:
* @swapper: a #GstVulkanSwapper
* @input_image: (out) (nullable): The #GstVideoRectangle for the configured
* caps modified for DAR.
* @surface_location: (out) (nullable): The #GstVideoRectangle for where the
* output surface is located relative to its parent
* @display_rect: (out) (nullable): The #GstVideoRectangle for where the input
* images are placed inside @surface_location
*/
void
gst_vulkan_swapper_get_surface_rectangles (GstVulkanSwapper * swapper,
GstVideoRectangle * input_image, GstVideoRectangle * surface_location,
GstVideoRectangle * display_rect)
{
GstVulkanSwapperPrivate *priv;
g_return_if_fail (GST_IS_VULKAN_SWAPPER (swapper));
priv = GET_PRIV (swapper);
RENDER_LOCK (swapper);
if (input_image) {
input_image->x = input_image->y = 0;
input_image->w = priv->dar_width;
input_image->h = priv->dar_height;
}
if (surface_location) {
*display_rect = priv->surface_location;
}
if (display_rect) {
*display_rect = priv->display_rect;
}
RENDER_UNLOCK (swapper);
}

6
gst-libs/gst/vulkan/gstvkswapper.h
View file

@ -77,6 +77,12 @@ gboolean gst_vulkan_swapper_render_buffer (GstVulkanSwappe
GstBuffer * buffer,
GError ** error);
GST_VULKAN_API
void gst_vulkan_swapper_get_surface_rectangles (GstVulkanSwapper *swapper,
GstVideoRectangle *input_image,
GstVideoRectangle *surface_location,
GstVideoRectangle *display_rect);
G_END_DECLS
#endif /* __GST_VULKAN_SWAPPER_H__ */