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Diffstat (limited to 'src/gallium/auxiliary/vl/vl_ycbcr_buffer.c')
-rw-r--r--src/gallium/auxiliary/vl/vl_ycbcr_buffer.c191
1 files changed, 191 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/vl/vl_ycbcr_buffer.c b/src/gallium/auxiliary/vl/vl_ycbcr_buffer.c
new file mode 100644
index 00000000000..56183891f9b
--- /dev/null
+++ b/src/gallium/auxiliary/vl/vl_ycbcr_buffer.c
@@ -0,0 +1,191 @@
+/**************************************************************************
+ *
+ * Copyright 2011 Christian König.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "vl_ycbcr_buffer.h"
+#include <util/u_format.h>
+#include <util/u_inlines.h>
+#include <util/u_sampler.h>
+#include <pipe/p_screen.h>
+#include <pipe/p_context.h>
+#include <assert.h>
+
+bool vl_ycbcr_buffer_init(struct vl_ycbcr_buffer *buffer,
+ struct pipe_context *pipe,
+ unsigned width, unsigned height,
+ enum pipe_video_chroma_format chroma_format,
+ enum pipe_format resource_format,
+ unsigned usage)
+{
+ struct pipe_resource templ;
+
+ assert(buffer && pipe);
+
+ memset(buffer, 0, sizeof(struct vl_ycbcr_buffer));
+ buffer->pipe = pipe;
+
+ memset(&templ, 0, sizeof(templ));
+ templ.target = PIPE_TEXTURE_2D;
+ templ.format = resource_format;
+ templ.width0 = width / util_format_get_nr_components(resource_format);
+ templ.height0 = height;
+ templ.depth0 = 1;
+ templ.array_size = 1;
+ templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
+ templ.usage = usage;
+
+ buffer->resources.y = pipe->screen->resource_create(pipe->screen, &templ);
+ if (!buffer->resources.y)
+ goto error_resource_y;
+
+ if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
+ templ.width0 /= 2;
+ templ.height0 /= 2;
+ } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
+ templ.height0 /= 2;
+ }
+
+ buffer->resources.cb = pipe->screen->resource_create(pipe->screen, &templ);
+ if (!buffer->resources.cb)
+ goto error_resource_cb;
+
+ buffer->resources.cr = pipe->screen->resource_create(pipe->screen, &templ);
+ if (!buffer->resources.cr)
+ goto error_resource_cr;
+
+ return true;
+
+error_resource_cr:
+ pipe_resource_reference(&buffer->resources.cb, NULL);
+
+error_resource_cb:
+ pipe_resource_reference(&buffer->resources.y, NULL);
+
+error_resource_y:
+ return false;
+}
+
+struct vl_ycbcr_sampler_views *vl_ycbcr_get_sampler_views(struct vl_ycbcr_buffer *buffer)
+{
+ struct pipe_sampler_view sv_templ;
+ struct pipe_context *pipe;
+
+ assert(buffer);
+
+ pipe = buffer->pipe;
+
+ if (!buffer->sampler_views.y) {
+ memset(&sv_templ, 0, sizeof(sv_templ));
+ u_sampler_view_default_template(&sv_templ, buffer->resources.y, buffer->resources.y->format);
+ buffer->sampler_views.y = pipe->create_sampler_view(pipe, buffer->resources.y, &sv_templ);
+ if (!buffer->sampler_views.y)
+ goto error;
+ }
+
+ if (!buffer->sampler_views.cb) {
+ memset(&sv_templ, 0, sizeof(sv_templ));
+ u_sampler_view_default_template(&sv_templ, buffer->resources.cb, buffer->resources.cb->format);
+ buffer->sampler_views.cb = pipe->create_sampler_view(pipe, buffer->resources.cb, &sv_templ);
+ if (!buffer->sampler_views.cb)
+ goto error;
+ }
+
+ if (!buffer->sampler_views.cr) {
+ memset(&sv_templ, 0, sizeof(sv_templ));
+ u_sampler_view_default_template(&sv_templ, buffer->resources.cr, buffer->resources.cr->format);
+ buffer->sampler_views.cr = pipe->create_sampler_view(pipe, buffer->resources.cr, &sv_templ);
+ if (!buffer->sampler_views.cr)
+ goto error;
+ }
+
+ return &buffer->sampler_views;
+
+error:
+ pipe_sampler_view_reference(&buffer->sampler_views.y, NULL);
+ pipe_sampler_view_reference(&buffer->sampler_views.cb, NULL);
+ pipe_sampler_view_reference(&buffer->sampler_views.cr, NULL);
+ return NULL;
+}
+
+struct vl_ycbcr_surfaces *vl_ycbcr_get_surfaces(struct vl_ycbcr_buffer *buffer)
+{
+ struct pipe_surface surf_templ;
+ struct pipe_context *pipe;
+
+ assert(buffer);
+
+ pipe = buffer->pipe;
+
+ if (!buffer->surfaces.y) {
+ memset(&surf_templ, 0, sizeof(surf_templ));
+ surf_templ.format = buffer->resources.y->format;
+ surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
+ buffer->surfaces.y = pipe->create_surface(pipe, buffer->resources.y, &surf_templ);
+ if (!buffer->surfaces.y)
+ goto error;
+ }
+
+ if (!buffer->surfaces.cb) {
+ memset(&surf_templ, 0, sizeof(surf_templ));
+ surf_templ.format = buffer->resources.cb->format;
+ surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
+ buffer->surfaces.cb = pipe->create_surface(pipe, buffer->resources.cb, &surf_templ);
+ if (!buffer->surfaces.cb)
+ goto error;
+ }
+
+ if (!buffer->surfaces.cr) {
+ memset(&surf_templ, 0, sizeof(surf_templ));
+ surf_templ.format = buffer->resources.cr->format;
+ surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
+ buffer->surfaces.cr = pipe->create_surface(pipe, buffer->resources.cr, &surf_templ);
+ if (!buffer->surfaces.cr)
+ goto error;
+ }
+
+ return &buffer->surfaces;
+
+error:
+ pipe_surface_reference(&buffer->surfaces.y, NULL);
+ pipe_surface_reference(&buffer->surfaces.cb, NULL);
+ pipe_surface_reference(&buffer->surfaces.cr, NULL);
+ return NULL;
+}
+
+void vl_ycbcr_buffer_cleanup(struct vl_ycbcr_buffer *buffer)
+{
+ pipe_surface_reference(&buffer->surfaces.y, NULL);
+ pipe_surface_reference(&buffer->surfaces.cb, NULL);
+ pipe_surface_reference(&buffer->surfaces.cr, NULL);
+
+ pipe_sampler_view_reference(&buffer->sampler_views.y, NULL);
+ pipe_sampler_view_reference(&buffer->sampler_views.cb, NULL);
+ pipe_sampler_view_reference(&buffer->sampler_views.cr, NULL);
+
+ pipe_resource_reference(&buffer->resources.y, NULL);
+ pipe_resource_reference(&buffer->resources.cb, NULL);
+ pipe_resource_reference(&buffer->resources.cr, NULL);
+}
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