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-rw-r--r--gst/colorspace/Makefile.am15
-rw-r--r--gst/colorspace/gstcolorspace.c635
-rw-r--r--gst/colorspace/gstcolorspace.h99
-rw-r--r--gst/colorspace/yuv2rgb.c720
-rw-r--r--gst/colorspace/yuv2rgb.h97
5 files changed, 1566 insertions, 0 deletions
diff --git a/gst/colorspace/Makefile.am b/gst/colorspace/Makefile.am
new file mode 100644
index 00000000..a6d2ca32
--- /dev/null
+++ b/gst/colorspace/Makefile.am
@@ -0,0 +1,15 @@
+
+plugin_LTLIBRARIES = libgstcolorspace.la
+
+if HAVE_CPU_I386
+ARCHSRCS = yuv2rgb_mmx16.s
+else
+ARCHSRCS =
+endif
+
+libgstcolorspace_la_SOURCES = gstcolorspace.c yuv2rgb.c yuv2yuv.c
+libgstcolorspace_la_CFLAGS = $(GST_CFLAGS)
+libgstcolorspace_la_LIBADD =
+libgstcolorspace_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
+
+#noinst_HEADERS = yuv2rgb.h yuv2yuv.h
diff --git a/gst/colorspace/gstcolorspace.c b/gst/colorspace/gstcolorspace.c
new file mode 100644
index 00000000..e923c3a1
--- /dev/null
+++ b/gst/colorspace/gstcolorspace.c
@@ -0,0 +1,635 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <gstcolorspace.h>
+#include <gst/gst.h>
+#include <gst/video/video.h>
+
+#include "yuv2rgb.h"
+
+
+static GstColorspaceFormat gst_colorspace_formats[] = {
+ { GST_STATIC_CAPS (GST_VIDEO_YUV_PAD_TEMPLATE_CAPS("I420")) },
+ { GST_STATIC_CAPS (GST_VIDEO_YUV_PAD_TEMPLATE_CAPS("YV12")) },
+ { GST_STATIC_CAPS (GST_VIDEO_RGB_PAD_TEMPLATE_CAPS_32) },
+ { GST_STATIC_CAPS (GST_VIDEO_RGB_PAD_TEMPLATE_CAPS_24) },
+ { GST_STATIC_CAPS (GST_VIDEO_RGB_PAD_TEMPLATE_CAPS_16) },
+};
+
+static GstColorspaceConverter gst_colorspace_converters[] = {
+ { GST_COLORSPACE_I420, GST_COLORSPACE_RGB32, gst_colorspace_I420_to_rgb32 },
+ { GST_COLORSPACE_YV12, GST_COLORSPACE_RGB32, gst_colorspace_YV12_to_rgb32 },
+ { GST_COLORSPACE_I420, GST_COLORSPACE_RGB24, gst_colorspace_I420_to_rgb24 },
+ { GST_COLORSPACE_YV12, GST_COLORSPACE_RGB24, gst_colorspace_YV12_to_rgb24 },
+ { GST_COLORSPACE_I420, GST_COLORSPACE_RGB16, gst_colorspace_I420_to_rgb16 },
+ { GST_COLORSPACE_YV12, GST_COLORSPACE_RGB16, gst_colorspace_YV12_to_rgb16 },
+};
+
+static GstElementDetails colorspace_details = GST_ELEMENT_DETAILS (
+ "Colorspace converter",
+ "Filter/Converter/Video",
+ "Converts video from one colorspace to another",
+ "Wim Taymans <wim.taymans@chello.be>"
+);
+
+static GstStaticPadTemplate gst_colorspace_sink_template =
+GST_STATIC_PAD_TEMPLATE (
+ "sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_VIDEO_YUV_PAD_TEMPLATE_CAPS ("{ I420, YV12 }"))
+);
+
+static GstStaticPadTemplate gst_colorspace_src_template =
+GST_STATIC_PAD_TEMPLATE (
+ "src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (
+ GST_VIDEO_RGB_PAD_TEMPLATE_CAPS_32 "; "
+ GST_VIDEO_RGB_PAD_TEMPLATE_CAPS_24 "; "
+ GST_VIDEO_RGB_PAD_TEMPLATE_CAPS_16
+ )
+);
+
+/* Stereo signals and args */
+enum {
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum {
+ ARG_0,
+ ARG_SOURCE,
+ ARG_DEST,
+};
+
+static void gst_colorspace_base_init (gpointer g_class);
+static void gst_colorspace_class_init (GstColorspaceClass *klass);
+static void gst_colorspace_init (GstColorspace *space);
+
+static void gst_colorspace_set_property (GObject *object, guint prop_id,
+ const GValue *value, GParamSpec *pspec);
+static void gst_colorspace_get_property (GObject *object, guint prop_id,
+ GValue *value, GParamSpec *pspec);
+
+static GstPadLinkReturn
+ gst_colorspace_link (GstPad *pad, const GstCaps *caps);
+static void gst_colorspace_chain (GstPad *pad, GstData *_data);
+static GstElementStateReturn
+ gst_colorspace_change_state (GstElement *element);
+
+
+static GstElementClass *parent_class = NULL;
+/*static guint gst_colorspace_signals[LAST_SIGNAL] = { 0 }; */
+
+#if 0
+static gboolean
+colorspace_setup_converter (GstColorspace *space, GstCaps *from_caps, GstCaps *to_caps)
+{
+ guint32 from_space, to_space;
+ GstStructure *from_struct;
+ GstStructure *to_struct;
+
+ g_return_val_if_fail (to_caps != NULL, FALSE);
+ g_return_val_if_fail (from_caps != NULL, FALSE);
+
+ from_struct = gst_caps_get_structure (from_caps, 0);
+ to_struct = gst_caps_get_structure (to_caps, 0);
+
+ from_space = GST_MAKE_FOURCC ('R','G','B',' ');
+ gst_structure_get_fourcc (from_struct, "format", &from_space);
+
+ to_space = GST_MAKE_FOURCC ('R','G','B',' ');
+ gst_structure_get_fourcc (to_struct, "format", &to_space);
+
+ GST_INFO ("set up converter for " GST_FOURCC_FORMAT
+ " (%08x) to " GST_FOURCC_FORMAT " (%08x)",
+ GST_FOURCC_ARGS (from_space), from_space,
+ GST_FOURCC_ARGS (to_space), to_space);
+
+ switch (from_space) {
+ case GST_MAKE_FOURCC ('R','G','B',' '):
+ {
+ gint from_bpp;
+
+ gst_structure_get_int (from_struct, "bpp", &from_bpp);
+
+ switch (to_space) {
+ case GST_MAKE_FOURCC ('R','G','B',' '):
+#ifdef HAVE_HERMES
+ {
+ gint to_bpp;
+
+ gst_structure_get_int (to_struct, "bpp", &to_bpp);
+
+ gst_structure_get_int (from_struct, "red_mask", &space->source.r);
+ gst_structure_get_int (from_struct, "green_mask", &space->source.g);
+ gst_structure_get_int (from_struct, "blue_mask", &space->source.b);
+ space->source.a = 0;
+ space->srcbpp = space->source.bits = from_bpp;
+ space->source.indexed = 0;
+ space->source.has_colorkey = 0;
+
+ GST_INFO ( "source red mask %08x", space->source.r);
+ GST_INFO ( "source green mask %08x", space->source.g);
+ GST_INFO ( "source blue mask %08x", space->source.b);
+ GST_INFO ( "source bpp %08x", space->srcbpp);
+
+ gst_structure_get_int (to_struct, "red_mask", &space->dest.r);
+ gst_structure_get_int (to_struct, "green_mask", &space->dest.g);
+ gst_structure_get_int (to_struct, "blue_mask", &space->dest.b);
+ space->dest.a = 0;
+ space->destbpp = space->dest.bits = to_bpp;
+ space->dest.indexed = 0;
+ space->dest.has_colorkey = 0;
+
+ GST_INFO ( "dest red mask %08x", space->dest.r);
+ GST_INFO ( "dest green mask %08x", space->dest.g);
+ GST_INFO ( "dest blue mask %08x", space->dest.b);
+ GST_INFO ( "dest bpp %08x", space->destbpp);
+
+ if (!Hermes_ConverterRequest (space->h_handle, &space->source, &space->dest)) {
+ g_warning ("Hermes: could not get converter\n");
+ return FALSE;
+ }
+ GST_INFO ( "converter set up");
+ space->type = GST_COLORSPACE_HERMES;
+ return TRUE;
+ }
+#else
+ g_warning ("colorspace: compiled without hermes!");
+ return FALSE;
+#endif
+ case GST_MAKE_FOURCC ('Y','V','1','2'):
+ if (from_bpp == 32) {
+ space->type = GST_COLORSPACE_RGB32_YV12;
+ space->destbpp = 12;
+ return TRUE;
+ }
+ case GST_MAKE_FOURCC ('I','4','2','0'):
+ if (from_bpp == 32) {
+ space->type = GST_COLORSPACE_RGB32_I420;
+ space->destbpp = 12;
+ return TRUE;
+ }
+ case GST_MAKE_FOURCC ('Y','U','Y','2'):
+ GST_INFO ( "colorspace: RGB to YUV with bpp %d not implemented!!", from_bpp);
+ return FALSE;
+ }
+ break;
+ }
+ case GST_MAKE_FOURCC ('I','4','2','0'):
+ switch (to_space) {
+ case GST_MAKE_FOURCC ('R','G','B',' '):
+ GST_INFO ( "colorspace: YUV to RGB");
+
+ gst_structure_get_int (to_struct, "bpp", &space->destbpp);
+ space->converter = gst_colorspace_yuv2rgb_get_converter (from_caps, to_caps);
+ space->type = GST_COLORSPACE_YUV_RGB;
+ return TRUE;
+ case GST_MAKE_FOURCC ('I','4','2','0'):
+ space->type = GST_COLORSPACE_NONE;
+ space->destbpp = 12;
+ return TRUE;
+ case GST_MAKE_FOURCC ('Y','V','1','2'):
+ space->type = GST_COLORSPACE_420_SWAP;
+ space->destbpp = 12;
+ return TRUE;
+
+ }
+ break;
+ case GST_MAKE_FOURCC ('Y','U','Y','2'):
+ switch (to_space) {
+ case GST_MAKE_FOURCC ('I','4','2','0'):
+ space->type = GST_COLORSPACE_YUY2_I420;
+ space->destbpp = 12;
+ return TRUE;
+ case GST_MAKE_FOURCC ('Y','U','Y','2'):
+ space->type = GST_COLORSPACE_NONE;
+ space->destbpp = 16;
+ return TRUE;
+ case GST_MAKE_FOURCC ('R','G','B',' '):
+ GST_INFO ( "colorspace: YUY2 to RGB not implemented!!");
+ return FALSE;
+ }
+ break;
+ case GST_MAKE_FOURCC ('Y','V','1','2'):
+ switch (to_space) {
+ case GST_MAKE_FOURCC ('R','G','B',' '):
+ GST_INFO ( "colorspace: YV12 to RGB");
+
+ gst_structure_get_int (to_struct, "bpp", &space->destbpp);
+ space->converter = gst_colorspace_yuv2rgb_get_converter (from_caps, to_caps);
+ space->type = GST_COLORSPACE_YUV_RGB;
+ return TRUE;
+ case GST_MAKE_FOURCC ('I','4','2','0'):
+ space->type = GST_COLORSPACE_420_SWAP;
+ space->destbpp = 12;
+ return TRUE;
+ case GST_MAKE_FOURCC ('Y','V','1','2'):
+ space->type = GST_COLORSPACE_NONE;
+ space->destbpp = 12;
+ return TRUE;
+ }
+ break;
+ }
+ return FALSE;
+}
+#endif
+
+static GstCaps *
+gst_colorspace_caps_remove_format_info (GstCaps *caps, const char *media_type)
+{
+ int i;
+ GstStructure *structure;
+ GstCaps *rgbcaps;
+
+ for (i=0; i<gst_caps_get_size (caps); i++) {
+ structure = gst_caps_get_structure (caps, i);
+
+ gst_structure_set_name (structure, media_type);
+ gst_structure_remove_field (structure, "format");
+ gst_structure_remove_field (structure, "endianness");
+ gst_structure_remove_field (structure, "depth");
+ gst_structure_remove_field (structure, "bpp");
+ gst_structure_remove_field (structure, "red_mask");
+ gst_structure_remove_field (structure, "green_mask");
+ gst_structure_remove_field (structure, "blue_mask");
+ }
+
+ rgbcaps = gst_caps_simplify (caps);
+ gst_caps_free (caps);
+
+ return rgbcaps;
+}
+
+static GstCaps*
+gst_colorspace_getcaps (GstPad *pad)
+{
+ GstColorspace *space;
+ GstPad *otherpad;
+ GstCaps *othercaps;
+ GstCaps *caps;
+
+ space = GST_COLORSPACE (gst_pad_get_parent (pad));
+
+ otherpad = (pad == space->srcpad) ? space->sinkpad : space->srcpad;
+
+ othercaps = gst_pad_get_allowed_caps (otherpad);
+
+ othercaps = gst_colorspace_caps_remove_format_info (othercaps,
+ (pad == space->srcpad) ? "video/x-raw-rgb" : "video/x-raw-yuv");
+
+ caps = gst_caps_intersect (othercaps, gst_pad_get_pad_template_caps (pad));
+ gst_caps_free (othercaps);
+
+ return caps;
+}
+
+static GstColorSpaceFormatType
+gst_colorspace_get_format (const GstCaps *caps)
+{
+ int i;
+
+ for(i=0; i<G_N_ELEMENTS (gst_colorspace_formats); i++) {
+ GstCaps *icaps;
+ GstCaps *fcaps;
+
+ fcaps = gst_caps_copy (gst_static_caps_get (
+ &gst_colorspace_formats[i].caps));
+
+ icaps = gst_caps_intersect (caps, fcaps);
+ if (!gst_caps_is_empty (icaps)) {
+ gst_caps_free (icaps);
+ return i;
+ }
+ gst_caps_free (icaps);
+ }
+
+ g_assert_not_reached();
+ return -1;
+}
+
+#define ROUND_UP_2(x) (((x)+1)&~1)
+#define ROUND_UP_4(x) (((x)+3)&~3)
+#define ROUND_UP_8(x) (((x)+7)&~7)
+
+static int
+gst_colorspace_format_get_size(GstColorSpaceFormatType index, int width,
+ int height)
+{
+ int size;
+
+ switch (index) {
+ case GST_COLORSPACE_I420:
+ case GST_COLORSPACE_YV12:
+ size = ROUND_UP_4 (width) * ROUND_UP_2 (height);
+ size += ROUND_UP_8 (width)/2 * ROUND_UP_2 (height)/2;
+ size += ROUND_UP_8 (width)/2 * ROUND_UP_2 (height)/2;
+ return size;
+ break;
+ case GST_COLORSPACE_RGB32:
+ return width*height*4;
+ break;
+ case GST_COLORSPACE_RGB24:
+ return ROUND_UP_4 (width*3) * height;
+ break;
+ case GST_COLORSPACE_RGB16:
+ return ROUND_UP_4 (width*2) * height;
+ break;
+ }
+
+ g_assert_not_reached();
+ return 0;
+}
+
+static int
+gst_colorspace_get_converter (GstColorSpaceFormatType from,
+ GstColorSpaceFormatType to)
+{
+ int i;
+
+ for (i=0; i<G_N_ELEMENTS (gst_colorspace_converters); i++) {
+ GstColorspaceConverter *converter = gst_colorspace_converters + i;
+ if (from == converter->from && to == converter->to) {
+ return i;
+ }
+ }
+ g_assert_not_reached();
+ return -1;
+}
+
+static GstPadLinkReturn
+gst_colorspace_link (GstPad *pad, const GstCaps *caps)
+{
+ GstColorspace *space;
+ GstPad *otherpad;
+ GstStructure *structure;
+ GstPadLinkReturn link_ret;
+ int width, height;
+ double fps;
+ int format_index;
+
+ space = GST_COLORSPACE (gst_pad_get_parent (pad));
+ otherpad = (pad == space->sinkpad) ? space->srcpad : space->sinkpad;
+
+ link_ret = gst_pad_try_set_caps (otherpad, caps);
+ if (link_ret == GST_PAD_LINK_OK) {
+ return link_ret;
+ }
+
+ structure = gst_caps_get_structure (caps, 0);
+
+ format_index = gst_colorspace_get_format (caps);
+ g_print("format index is %d\n", format_index);
+
+ gst_structure_get_int (structure, "width", &width);
+ gst_structure_get_int (structure, "height", &height);
+ gst_structure_get_double (structure, "framerate", &fps);
+
+ GST_INFO ( "size: %dx%d", space->width, space->height);
+
+ if (gst_pad_is_negotiated (otherpad)) {
+ GstCaps *othercaps;
+
+ othercaps = gst_caps_copy (gst_pad_get_negotiated_caps (otherpad));
+
+ gst_caps_set_simple (othercaps,
+ "width", G_TYPE_INT, width,
+ "height", G_TYPE_INT, height,
+ "framerate", G_TYPE_DOUBLE, fps, NULL);
+
+ link_ret = gst_pad_try_set_caps (otherpad, othercaps);
+ if (link_ret != GST_PAD_LINK_OK) {
+ return link_ret;
+ }
+ }
+
+ if (pad == space->srcpad) {
+ space->src_format_index = format_index;
+ } else {
+ space->sink_format_index = format_index;
+ }
+
+ if (gst_pad_is_negotiated (otherpad)) {
+ space->converter_index = gst_colorspace_get_converter (
+ space->sink_format_index, space->src_format_index);
+
+ g_print("using index %d\n", space->converter_index);
+
+ space->sink_size = gst_colorspace_format_get_size(space->sink_format_index,
+ width,height);
+ space->src_size = gst_colorspace_format_get_size(space->src_format_index,
+ width,height);
+ space->width = width;
+ space->height = height;
+ space->fps = fps;
+ }
+
+#if 0
+ if (gst_pad_is_negotiated (otherpad)) {
+ g_warning ("could not get converter\n");
+ return GST_PAD_LINK_REFUSED;
+ }
+#endif
+
+ return GST_PAD_LINK_OK;
+}
+
+GType
+gst_colorspace_get_type (void)
+{
+ static GType colorspace_type = 0;
+
+ if (!colorspace_type) {
+ static const GTypeInfo colorspace_info = {
+ sizeof(GstColorspaceClass),
+ gst_colorspace_base_init,
+ NULL,
+ (GClassInitFunc)gst_colorspace_class_init,
+ NULL,
+ NULL,
+ sizeof(GstColorspace),
+ 0,
+ (GInstanceInitFunc)gst_colorspace_init,
+ };
+ colorspace_type = g_type_register_static(GST_TYPE_ELEMENT, "GstColorspace", &colorspace_info, 0);
+ }
+ return colorspace_type;
+}
+
+static void
+gst_colorspace_base_init (gpointer g_class)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_colorspace_src_template));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_colorspace_sink_template));
+
+ gst_element_class_set_details (element_class, &colorspace_details);
+}
+
+static void
+gst_colorspace_class_init (GstColorspaceClass *klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass*)klass;
+ gstelement_class = (GstElementClass*)klass;
+
+ parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
+
+ gobject_class->set_property = gst_colorspace_set_property;
+ gobject_class->get_property = gst_colorspace_get_property;
+
+ gstelement_class->change_state = gst_colorspace_change_state;
+
+ gst_colorspace_table_init(NULL);
+}
+
+static void
+gst_colorspace_init (GstColorspace *space)
+{
+ space->sinkpad = gst_pad_new_from_template (
+ gst_static_pad_template_get (&gst_colorspace_sink_template),
+ "sink");
+ gst_pad_set_link_function (space->sinkpad, gst_colorspace_link);
+ gst_pad_set_getcaps_function (space->sinkpad, gst_colorspace_getcaps);
+ gst_pad_set_chain_function(space->sinkpad,gst_colorspace_chain);
+ gst_element_add_pad(GST_ELEMENT(space),space->sinkpad);
+
+ space->srcpad = gst_pad_new_from_template (
+ gst_static_pad_template_get (&gst_colorspace_src_template),
+ "src");
+ gst_element_add_pad(GST_ELEMENT(space),space->srcpad);
+ gst_pad_set_link_function (space->srcpad, gst_colorspace_link);
+}
+
+static void
+gst_colorspace_chain (GstPad *pad,GstData *_data)
+{
+ GstBuffer *buf = GST_BUFFER (_data);
+ GstColorspace *space;
+ GstBuffer *outbuf = NULL;
+ GstColorspaceConverter *converter;
+
+ g_return_if_fail (pad != NULL);
+ g_return_if_fail (GST_IS_PAD (pad));
+ g_return_if_fail (buf != NULL);
+
+ space = GST_COLORSPACE (gst_pad_get_parent (pad));
+
+ g_return_if_fail (space != NULL);
+ g_return_if_fail (GST_IS_COLORSPACE (space));
+
+ if (GST_BUFFER_SIZE (buf) < space->sink_size) {
+ g_critical ("input size is smaller than expected");
+ }
+
+ outbuf = gst_pad_alloc_buffer (space->srcpad, GST_BUFFER_OFFSET_NONE,
+ space->src_size);
+
+ converter = gst_colorspace_converters + space->converter_index;
+ converter->convert (space, GST_BUFFER_DATA (outbuf),
+ GST_BUFFER_DATA (buf));
+
+ GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
+ GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
+
+ gst_buffer_unref (buf);
+ gst_pad_push (space->srcpad, GST_DATA (outbuf));
+}
+
+static GstElementStateReturn
+gst_colorspace_change_state (GstElement *element)
+{
+ GstColorspace *space;
+
+ space = GST_COLORSPACE (element);
+
+ switch (GST_STATE_TRANSITION (element)) {
+ case GST_STATE_PAUSED_TO_PLAYING:
+ break;
+ case GST_STATE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_PAUSED_TO_READY:
+ break;
+ }
+
+ return parent_class->change_state (element);
+}
+
+static void
+gst_colorspace_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+ GstColorspace *space;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_COLORSPACE(object));
+ space = GST_COLORSPACE(object);
+
+ switch (prop_id) {
+ default:
+ break;
+ }
+}
+
+static void
+gst_colorspace_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+ GstColorspace *space;
+
+ /* it's not null if we got it, but it might not be ours */
+ g_return_if_fail(GST_IS_COLORSPACE(object));
+ space = GST_COLORSPACE(object);
+
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+plugin_init (GstPlugin *plugin)
+{
+ if (!gst_element_register (plugin, "colorspace", GST_RANK_PRIMARY,
+ GST_TYPE_COLORSPACE))
+ return FALSE;
+
+ return TRUE;
+}
+
+GST_PLUGIN_DEFINE (
+ GST_VERSION_MAJOR,
+ GST_VERSION_MINOR,
+ "colorspace",
+ "Hermes colorspace converter",
+ plugin_init,
+ VERSION,
+ "LGPL",
+ GST_PACKAGE,
+ GST_ORIGIN)
diff --git a/gst/colorspace/gstcolorspace.h b/gst/colorspace/gstcolorspace.h
new file mode 100644
index 00000000..22e2f7ec
--- /dev/null
+++ b/gst/colorspace/gstcolorspace.h
@@ -0,0 +1,99 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _GST_COLORSPACE_H_
+#define _GST_COLORSPACE_H_
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_COLORSPACE \
+ (gst_colorspace_get_type())
+#define GST_COLORSPACE(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLORSPACE,GstColorspace))
+#define GST_COLORSPACE_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstColorspace))
+#define GST_IS_COLORSPACE(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLORSPACE))
+#define GST_IS_COLORSPACE_CLASS(obj) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLORSPACE))
+
+typedef struct _GstColorspace GstColorspace;
+typedef struct _GstColorspaceClass GstColorspaceClass;
+
+typedef enum {
+ GST_COLORSPACE_NONE,
+ GST_COLORSPACE_HERMES,
+ GST_COLORSPACE_YUV_RGB,
+ GST_COLORSPACE_YUY2_I420,
+ GST_COLORSPACE_RGB32_I420,
+ GST_COLORSPACE_RGB32_YV12,
+ GST_COLORSPACE_420_SWAP,
+} GstColorSpaceConverterType;
+
+struct _GstColorspace {
+ GstElement element;
+
+ GstPad *sinkpad,*srcpad;
+
+ int converter_index;
+
+ int src_format_index;
+ int sink_format_index;
+
+ int src_size;
+ int sink_size;
+
+ int src_stride;
+ int sink_stride;
+
+ gint width, height;
+ gdouble fps;
+};
+
+struct _GstColorspaceClass {
+ GstElementClass parent_class;
+};
+
+GType gst_colorspace_get_type(void);
+
+typedef struct _GstColorspaceFormat {
+ GstStaticCaps caps;
+
+} GstColorspaceFormat;
+
+typedef enum {
+ GST_COLORSPACE_I420,
+ GST_COLORSPACE_YV12,
+ GST_COLORSPACE_RGB32,
+ GST_COLORSPACE_RGB24,
+ GST_COLORSPACE_RGB16,
+} GstColorSpaceFormatType;
+
+typedef struct _GstColorspaceConverter {
+ GstColorSpaceFormatType from;
+ GstColorSpaceFormatType to;
+ void (*convert) (GstColorspace *colorspace, unsigned char *dest, unsigned char *src);
+} GstColorspaceConverter;
+
+G_END_DECLS
+
+#endif
+
diff --git a/gst/colorspace/yuv2rgb.c b/gst/colorspace/yuv2rgb.c
new file mode 100644
index 00000000..3627e896
--- /dev/null
+++ b/gst/colorspace/yuv2rgb.c
@@ -0,0 +1,720 @@
+/* GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <math.h>
+#include <stdlib.h>
+
+#include "yuv2rgb.h"
+
+#undef HAVE_LIBMMX
+
+#ifdef HAVE_LIBMMX
+#include <mmx.h>
+#endif
+
+static int V_r_tab [256];
+static int V_g_tab [256];
+static int U_g_tab [256];
+static int U_b_tab [256];
+
+#define CB_BASE 1
+#define CR_BASE (CB_BASE*CB_RANGE)
+#define LUM_BASE (CR_BASE*CR_RANGE)
+
+#define Min(x,y) (((x) < (y)) ? (x) : (y))
+#define Max(x,y) (((x) > (y)) ? (x) : (y))
+
+#define GAMMA_CORRECTION(x) ((int)(pow((x) / 255.0, 1.0 / gammaCorrect) * 255.0))
+#define CHROMA_CORRECTION256(x) ((x) >= 128 \
+ ? 128 + Min(127, (int)(((x) - 128.0) * chromaCorrect)) \
+ : 128 - Min(128, (int)((128.0 - (x)) * chromaCorrect)))
+#define CHROMA_CORRECTION128(x) ((x) >= 0 \
+ ? Min(127, (int)(((x) * chromaCorrect))) \
+ : Max(-128, (int)(((x) * chromaCorrect))))
+#define CHROMA_CORRECTION256D(x) ((x) >= 128 \
+ ? 128.0 + Min(127.0, (((x) - 128.0) * chromaCorrect)) \
+ : 128.0 - Min(128.0, (((128.0 - (x)) * chromaCorrect))))
+#define CHROMA_CORRECTION128D(x) ((x) >= 0 \
+ ? Min(127.0, ((x) * chromaCorrect)) \
+ : Max(-128.0, ((x) * chromaCorrect)))
+
+
+void gst_colorspace_I420_to_rgb16 (GstColorspace *space, unsigned char *src, unsigned char *dest);
+void gst_colorspace_I420_to_rgb24 (GstColorspace *space, unsigned char *src, unsigned char *dest);
+void gst_colorspace_I420_to_rgb32 (GstColorspace *space, unsigned char *src, unsigned char *dest);
+#ifdef HAVE_LIBMMX
+void gst_colorspace_I420_to_bgr16_mmx (GstColorspace *space, unsigned char *src, unsigned char *dest);
+void gst_colorspace_I420_to_bgr32_mmx (GstColorspace *space, unsigned char *src, unsigned char *dest);
+#endif
+
+void gst_colorspace_YV12_to_rgb16 (GstColorspace *space, unsigned char *src, unsigned char *dest);
+void gst_colorspace_YV12_to_rgb24 (GstColorspace *space, unsigned char *src, unsigned char *dest);
+void gst_colorspace_YV12_to_rgb32 (GstColorspace *space, unsigned char *src, unsigned char *dest);
+#ifdef HAVE_LIBMMX
+void gst_colorspace_YV12_to_bgr16_mmx (GstColorspace *space, unsigned char *src, unsigned char *dest);
+void gst_colorspace_YV12_to_bgr32_mmx (GstColorspace *space, unsigned char *src, unsigned char *dest);
+#endif
+
+static void
+gst_colorspace_yuv_to_rgb16(GstColorspace *space,
+ unsigned char *out,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ int cols, int rows);
+static void
+gst_colorspace_yuv_to_rgb24(GstColorspace *space,
+ unsigned char *out,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ int cols, int rows);
+static void
+gst_colorspace_yuv_to_rgb32(GstColorspace *space,
+ unsigned char *out,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ int cols, int rows);
+#if 0
+static void gst_colorspace_yuv_to_rgb16(GstColorspaceYUVTables *tables,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ unsigned char *out,
+ int cols, int rows);
+static void gst_colorspace_yuv_to_rgb24(GstColorspaceYUVTables *tables,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ unsigned char *out,
+ int cols, int rows);
+static void gst_colorspace_yuv_to_rgb32(GstColorspaceYUVTables *tables,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ unsigned char *out,
+ int cols, int rows);
+#ifdef HAVE_LIBMMX
+void gst_colorspace_yuv_to_bgr32_mmx(GstColorspaceYUVTables *tables,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ unsigned char *out,
+ int cols, int rows);
+extern void gst_colorspace_yuv_to_bgr16_mmx(GstColorspaceYUVTables *tables,
+ unsigned char *lum,
+ unsigned char *cr,
+ unsigned char *cb,
+ unsigned char *out,
+ int cols, int rows);
+#endif
+#endif
+
+#define ROUND_UP_2(x) (((x)+1)&~1)
+#define ROUND_UP_4(x) (((x)+3)&~3)
+#define ROUND_UP_8(x) (((x)+7)&~7)
+
+
+void gst_colorspace_I420_to_rgb32(GstColorspace *space, unsigned char *dest,
+ unsigned char *src)
+{
+ unsigned char *src_U;
+ unsigned char *src_V;
+
+ src_U = src + ROUND_UP_4 (space->width) * ROUND_UP_2 (space->height);
+ src_V = src_U + ROUND_UP_8 (space->width)/2 * ROUND_UP_2 (space->height)/2;
+
+ gst_colorspace_yuv_to_rgb32(space,
+ dest,
+ src, src_U, src_V,
+ space->width, space->height);
+}
+
+void gst_colorspace_I420_to_rgb24(GstColorspace *space, unsigned char *dest,
+ unsigned char *src)
+{
+ unsigned char *src_U;
+ unsigned char *src_V;
+
+ src_U = src + ROUND_UP_4 (space->width) * ROUND_UP_2 (space->height);
+ src_V = src_U + ROUND_UP_8 (space->width)/2 * ROUND_UP_2 (space->height)/2;
+
+ gst_colorspace_yuv_to_rgb24(space,
+ dest,
+ src, src_U, src_V,
+ space->width, space->height);
+}
+
+void gst_colorspace_I420_to_rgb16(GstColorspace *space, unsigned char *dest,
+ unsigned char *src)
+{
+ unsigned char *src_U;
+ unsigned char *src_V;
+
+ src_U = src + ROUND_UP_4 (space->width) * ROUND_UP_2 (space->height);
+ src_V = src_U + ROUND_UP_8 (space->width)/2 * ROUND_UP_2 (space->height)/2;
+
+ gst_colorspace_yuv_to_rgb16(space,
+ dest,
+ src, src_U, src_V,
+ space->width, space->height);
+}
+
+void gst_colorspace_YV12_to_rgb32(GstColorspace *space, unsigned char *dest,
+ unsigned char *src)
+{
+ unsigned char *src_U;
+ unsigned char *src_V;
+
+ src_V = src + ROUND_UP_4 (space->width) * ROUND_UP_2 (space->height);
+ src_U = src_V + ROUND_UP_8 (space->width)/2 * ROUND_UP_2 (space->height)/2;
+
+ gst_colorspace_yuv_to_rgb32(space,
+ dest,
+ src, src_U, src_V,
+ space->width, space->height);
+}
+
+void gst_colorspace_YV12_to_rgb24(GstColorspace *space, unsigned char *dest,
+ unsigned char *src)
+{
+ unsigned char *src_U;
+ unsigned char *src_V;
+
+ src_V = src + ROUND_UP_4 (space->width) * ROUND_UP_2 (space->height);
+ src_U = src_V + ROUND_UP_8 (space->width)/2 * ROUND_UP_2 (space->height)/2;
+
+ gst_colorspace_yuv_to_rgb24(space,
+ dest,
+ src, src_U, src_V,
+ space->width, space->height);
+}
+
+void gst_colorspace_YV12_to_rgb16(GstColorspace *space, unsigned char *dest,
+ unsigned char *src)
+{
+ unsigned char *src_U;
+ unsigned char *src_V;
+
+ src_V = src + ROUND_UP_4 (space->width) * ROUND_UP_2 (space->height);
+ src_U = src_V + ROUND_UP_8 (space->width)/2 * ROUND_UP_2 (space->height)/2;
+
+ gst_colorspace_yuv_to_rgb16(space,
+ dest,
+ src, src_U, src_V,
+ space->width, space->height);
+}
+
+#ifdef HAVE_LIBMMX
+void gst_colorspace_I420_to_bgr32_mmx(GstColorspace *space, unsigned char *src, unsigned char *dest) {
+ int size;
+ GST_DEBUG ("gst_colorspace_I420_to_rgb32_mmx");
+
+ size = space->width * space->height;
+
+ gst_colorspace_yuv_to_bgr32_mmx(NULL,
+ src, /* Y component */
+ src+size, /* cr component */
+ src+size+(size>>2), /* cb component */
+ dest,
+ space->height,
+ space->width);
+
+}
+
+void gst_colorspace_I420_to_bgr16_mmx(GstColorspace *space, unsigned char *src, unsigned char *dest) {
+ int size;
+ GST_DEBUG ("gst_colorspace_I420_to_bgr16_mmx ");
+
+ size = space->width * space->height;
+
+ gst_colorspace_yuv_to_bgr16_mmx(NULL,
+ src, /* Y component */
+ src+size, /* cr component */
+ src+size+(size>>2), /* cb component */
+ dest,
+ space->height,
+ space->width);
+ GST_DEBUG ("gst_colorspace_I420_to_bgr16_mmx done");
+
+}
+
+void gst_colorspace_YV12_to_bgr32_mmx(GstColorspace *space, unsigned char *src, unsigned char *dest) {
+ int size;
+ GST_DEBUG ("gst_colorspace_YV12_to_rgb32_mmx");
+
+ size = space->width * space->height;
+
+ gst_colorspace_yuv_to_bgr32_mmx(NULL,
+ src, /* Y component */
+ src+size+(size>>2), /* cb component */
+ src+size, /* cr component */
+ dest,
+ space->height,
+ space->width);
+
+}
+
+void gst_colorspace_YV12_to_bgr16_mmx(GstColorspace *space, unsigned char *src, unsigned char *dest) {
+ int size;
+ GST_DEBUG ("gst_colorspace_YV12_to_bgr16_mmx ");
+
+ size = space->width * space->height;
+
+ gst_colorspace_yuv_to_bgr16_mmx(NULL,
+ src, /* Y component */
+ src+size+(size>>2), /* cb component */
+ src+size, /* cr component */
+ dest,
+ space->height,
+ space->width);
+ GST_DEBUG ("gst_colorspace_YV12_to_bgr16_mmx done");
+
+}
+#endif
+/*
+ * How many 1 bits are there in the longword.
+ * Low performance, do not call often.
+ */
+
+static int
+number_of_bits_set(a)
+unsigned long a;
+{
+ if(!a) return 0;
+ if(a & 1) return 1 + number_of_bits_set(a >> 1);
+ return(number_of_bits_set(a >> 1));
+}
+
+/*
+ * How many 0 bits are there at most significant end of longword.
+ * Low performance, do not call often.
+ */
+static int
+free_bits_at_top(a)
+unsigned long a;
+{
+ /* assume char is 8 bits */
+ if(!a) return sizeof(unsigned long) * 8;
+ /* assume twos complement */
+ if(((long)a) < 0l) return 0;
+ return 1 + free_bits_at_top ( a << 1);
+}
+
+/*
+ * How many 0 bits are there at least significant end of longword.
+ * Low performance, do not call often.
+ */
+static int
+free_bits_at_bottom(a)
+unsigned long a;
+{
+ /* assume char is 8 bits */
+ if(!a) return sizeof(unsigned long) * 8;
+ if(((long)a) & 1l) return 0;
+ return 1 + free_bits_at_bottom ( a >> 1);
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * InitColor16Dither --
+ *
+ * To get rid of the multiply and other conversions in color
+ * dither, we use a lookup table.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * The lookup tables are initialized.
+ *
+ *--------------------------------------------------------------
+ */
+
+void
+gst_colorspace_table_init (GstColorspace *space)
+{
+ int i;
+
+ for (i=0; i<256; i++) {
+ V_r_tab[i] = (0.419/0.299) * (i-128);
+ V_g_tab[i] = -(0.299/0.419) * (i-128);
+ U_g_tab[i] = -(0.114/0.331) * (i-128);
+ U_b_tab[i] = (0.587/0.331) * (i-128);
+ }
+#if 0
+ int CR, CB, i;
+ int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
+ long *r_2_pix_alloc;
+ long *g_2_pix_alloc;
+ long *b_2_pix_alloc;
+ long depth = 32;
+ long red_mask = 0xff0000;
+ long green_mask = 0x00ff00;
+ long blue_mask = 0x0000ff;
+
+ L_tab = space->L_tab = (int *)malloc(256*sizeof(int));
+ Cr_r_tab = space->Cr_r_tab = (int *)malloc(256*sizeof(int));
+ Cr_g_tab = space->Cr_g_tab = (int *)malloc(256*sizeof(int));
+ Cb_g_tab = space->Cb_g_tab = (int *)malloc(256*sizeof(int));
+ Cb_b_tab = space->Cb_b_tab = (int *)malloc(256*sizeof(int));
+
+ r_2_pix_alloc = (long *)malloc(768*sizeof(long));
+ g_2_pix_alloc = (long *)malloc(768*sizeof(long));
+ b_2_pix_alloc = (long *)malloc(768*sizeof(long));
+
+ if (L_tab == NULL ||
+ Cr_r_tab == NULL ||
+ Cr_g_tab == NULL ||
+ Cb_g_tab == NULL ||
+ Cb_b_tab == NULL ||
+ r_2_pix_alloc == NULL ||
+ g_2_pix_alloc == NULL ||
+ b_2_pix_alloc == NULL) {
+ fprintf(stderr, "Could not get enough memory in InitColorDither\n");
+ exit(1);
+ }
+
+ for (i=0; i<256; i++) {
+ L_tab[i] = i;
+ /*
+ if (gammaCorrectFlag) {
+ L_tab[i] = GAMMA_CORRECTION(i);
+ }
+ */
+
+ CB = CR = i;
+ /*
+ if (chromaCorrectFlag) {
+ CB -= 128;
+ CB = CHROMA_CORRECTION128(CB);
+ CR -= 128;
+ CR = CHROMA_CORRECTION128(CR);
+ }
+ else
+ */
+ {
+ CB -= 128; CR -= 128;
+ }
+ Cr_r_tab[i] = (0.419/0.299) * CR;
+ Cr_g_tab[i] = -(0.299/0.419) * CR;
+ Cb_g_tab[i] = -(0.114/0.331) * CB;
+ Cb_b_tab[i] = (0.587/0.331) * CB;
+
+ }
+
+ /*
+ * Set up entries 0-255 in rgb-to-pixel value tables.
+ */
+ for (i = 0; i < 256; i++) {
+ r_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(red_mask));
+ r_2_pix_alloc[i + 256] <<= free_bits_at_bottom(red_mask);
+ g_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(green_mask));
+ g_2_pix_alloc[i + 256] <<= free_bits_at_bottom(green_mask);
+ b_2_pix_alloc[i + 256] = i >> (8 - number_of_bits_set(blue_mask));
+ b_2_pix_alloc[i + 256] <<= free_bits_at_bottom(blue_mask);
+ /*
+ * If we have 16-bit output depth, then we double the value
+ * in the top word. This means that we can write out both
+ * pixels in the pixel doubling mode with one op. It is
+ * harmless in the normal case as storing a 32-bit value
+ * through a short pointer will lose the top bits anyway.
+ * A similar optimisation for Alpha for 64 bit has been
+ * prepared for, but is not yet implemented.
+ */
+ if(!(depth == 32) && !(depth == 24)) {
+
+ r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 16;
+ g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 16;
+ b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 16;
+
+ }
+#ifdef SIXTYFOUR_BIT
+ if(depth == 32) {
+
+ r_2_pix_alloc[i + 256] |= (r_2_pix_alloc[i + 256]) << 32;
+ g_2_pix_alloc[i + 256] |= (g_2_pix_alloc[i + 256]) << 32;
+ b_2_pix_alloc[i + 256] |= (b_2_pix_alloc[i + 256]) << 32;
+
+ }
+#endif
+ }
+
+ /*
+ * Spread out the values we have to the rest of the array so that
+ * we do not need to check for overflow.
+ */
+ for (i = 0; i < 256; i++) {
+ r_2_pix_alloc[i] = r_2_pix_alloc[256];
+ r_2_pix_alloc[i+ 512] = r_2_pix_alloc[511];
+ g_2_pix_alloc[i] = g_2_pix_alloc[256];
+ g_2_pix_alloc[i+ 512] = g_2_pix_alloc[511];
+ b_2_pix_alloc[i] = b_2_pix_alloc[256];
+ b_2_pix_alloc[i+ 512] = b_2_pix_alloc[511];
+ }
+
+ space->r_2_pix = r_2_pix_alloc + 256;
+ space->g_2_pix = g_2_pix_alloc + 256;
+ space->b_2_pix = b_2_pix_alloc + 256;
+#endif
+}
+
+static void
+gst_colorspace_yuv_to_rgb32(GstColorspace *space,
+ unsigned char *dest,
+ unsigned char *Y,
+ unsigned char *U,
+ unsigned char *V,
+ int width, int height)
+{
+ int x,y;
+ int src_rowstride;
+ int dest_rowstride;
+
+ src_rowstride = ROUND_UP_4 (space->width);
+ dest_rowstride = width * 4;
+ for(y=0;y<height;y++){
+ for(x=0;x<width;x++){
+ dest[x*4 + 0] = 0;
+ dest[x*3 + 1] = CLAMP (Y[x] + V_r_tab[V[x/2]], 0, 255);
+ dest[x*3 + 2] = CLAMP (Y[x] + U_g_tab[U[x/2]] + V_g_tab[V[x/2]], 0, 255);
+ dest[x*3 + 3] = CLAMP (Y[x] + U_b_tab[U[x/2]], 0, 255);
+ }
+ Y += src_rowstride;
+ dest += dest_rowstride;
+ if (y&1) {
+ U += src_rowstride/2;
+ V += src_rowstride/2;
+ }
+ }
+}
+
+static void
+gst_colorspace_yuv_to_rgb24(GstColorspace *space,
+ unsigned char *dest,
+ unsigned char *Y,
+ unsigned char *U,
+ unsigned char *V,
+ int width, int height)
+{
+ int x,y;
+ int src_rowstride;
+ int dest_rowstride;
+
+ src_rowstride = ROUND_UP_4 (space->width);
+ dest_rowstride = ROUND_UP_4 (width * 3);
+ for(y=0;y<height;y++){
+ for(x=0;x<width;x++){
+ dest[x*3 + 0] = CLAMP (Y[x] + V_r_tab[V[x/2]], 0, 255);
+ dest[x*3 + 1] = CLAMP (Y[x] + U_g_tab[U[x/2]] + V_g_tab[V[x/2]], 0, 255);
+ dest[x*3 + 2] = CLAMP (Y[x] + U_b_tab[U[x/2]], 0, 255);
+ }
+ Y += src_rowstride;
+ dest += dest_rowstride;
+ if (y&1) {
+ U += src_rowstride/2;
+ V += src_rowstride/2;
+ }
+ }
+}
+
+static void
+gst_colorspace_yuv_to_rgb16(GstColorspace *space,
+ unsigned char *dest,
+ unsigned char *Y,
+ unsigned char *U,
+ unsigned char *V,
+ int width, int height)
+{
+ int x,y;
+ int src_rowstride;
+ int dest_rowstride;
+ int r, g, b;
+
+ src_rowstride = ROUND_UP_4 (space->width);
+ dest_rowstride = ROUND_UP_4 (width * 2);
+ for(y=0;y<height;y++){
+ for(x=0;x<width;x++){
+ r = CLAMP (Y[x] + V_r_tab[V[x/2]], 0, 255);
+ g = CLAMP (Y[x] + U_g_tab[U[x/2]] + V_g_tab[V[x/2]], 0, 255);
+ b = CLAMP (Y[x] + U_b_tab[U[x/2]], 0, 255);
+ *(unsigned short *)(dest + x*2) = ((r&0xf8)<<8) | ((g&0xfc)<<3) | (b>>3);
+ }
+ Y += src_rowstride;
+ dest += dest_rowstride;
+ if (y&1) {
+ U += src_rowstride/2;
+ V += src_rowstride/2;
+ }
+ }
+}
+
+#ifdef HAVE_LIBMMX
+static mmx_t MMX_80w = (mmx_t)(long long)0x0080008000800080LL; /*dd 00080 0080h, 000800080h */
+
+static mmx_t MMX_00FFw = (mmx_t)(long long)0x00ff00ff00ff00ffLL; /*dd 000FF 00FFh, 000FF00FFh */
+static mmx_t MMX_FF00w = (mmx_t)(long long)0xff00ff00ff00ff00LL; /*dd 000FF 00FFh, 000FF00FFh */
+
+static mmx_t MMX32_Vredcoeff = (mmx_t)(long long)0x0059005900590059LL;
+static mmx_t MMX32_Ubluecoeff = (mmx_t)(long long)0x0072007200720072LL;
+static mmx_t MMX32_Ugrncoeff = (mmx_t)(long long)0xffeaffeaffeaffeaLL;
+static mmx_t MMX32_Vgrncoeff = (mmx_t)(long long)0xffd2ffd2ffd2ffd2LL;
+
+static void
+gst_colorspace_yuv_to_bgr32_mmx(tables, lum, cr, cb, out, rows, cols)
+ GstColorspaceYUVTables *tables;
+ unsigned char *lum;
+ unsigned char *cr;
+ unsigned char *cb;
+ unsigned char *out;
+ int cols, rows;
+
+{
+ guint32 *row1 = (guint32 *)out; /* 32 bit target */
+ int cols4 = cols>>2;
+
+ int y, x;
+
+ for (y=rows>>1; y; y--) {
+ for (x=cols4; x; x--) {
+
+ /* create Cr (result in mm1) */
+ movd_m2r(*(mmx_t *)cb, mm1); /* 0 0 0 0 v3 v2 v1 v0 */
+ pxor_r2r(mm7, mm7); /* 00 00 00 00 00 00 00 00 */
+ movd_m2r(*(mmx_t *)lum, mm2); /* 0 0 0 0 l3 l2 l1 l0 */
+ punpcklbw_r2r(mm7, mm1); /* 0 v3 0 v2 00 v1 00 v0 */
+ punpckldq_r2r(mm1, mm1); /* 00 v1 00 v0 00 v1 00 v0 */
+ psubw_m2r(MMX_80w, mm1); /* mm1-128:r1 r1 r0 r0 r1 r1 r0 r0 */
+
+ /* create Cr_g (result in mm0) */
+ movq_r2r(mm1, mm0); /* r1 r1 r0 r0 r1 r1 r0 r0 */
+ pmullw_m2r(MMX32_Vgrncoeff, mm0); /* red*-46dec=0.7136*64 */
+ pmullw_m2r(MMX32_Vredcoeff, mm1); /* red*89dec=1.4013*64 */
+ psraw_i2r(6, mm0); /* red=red/64 */
+ psraw_i2r(6, mm1); /* red=red/64 */
+
+ /* create L1 L2 (result in mm2,mm4) */
+ /* L2=lum+cols */
+ movq_m2r(*(mmx_t *)(lum+cols),mm3); /* 0 0 0 0 L3 L2 L1 L0 */
+ punpckldq_r2r(mm3, mm2); /* L3 L2 L1 L0 l3 l2 l1 l0 */
+ movq_r2r(mm2, mm4); /* L3 L2 L1 L0 l3 l2 l1 l0 */
+ pand_m2r(MMX_FF00w, mm2); /* L3 0 L1 0 l3 0 l1 0 */
+ pand_m2r(MMX_00FFw, mm4); /* 0 L2 0 L0 0 l2 0 l0 */
+ psrlw_i2r(8, mm2); /* 0 L3 0 L1 0 l3 0 l1 */
+
+ /* create R (result in mm6) */
+ movq_r2r(mm2, mm5); /* 0 L3 0 L1 0 l3 0 l1 */
+ movq_r2r(mm4, mm6); /* 0 L2 0 L0 0 l2 0 l0 */
+ paddsw_r2r(mm1, mm5); /* lum1+red:x R3 x R1 x r3 x r1 */
+ paddsw_r2r(mm1, mm6); /* lum1+red:x R2 x R0 x r2 x r0 */
+ packuswb_r2r(mm5, mm5); /* R3 R1 r3 r1 R3 R1 r3 r1 */
+ packuswb_r2r(mm6, mm6); /* R2 R0 r2 r0 R2 R0 r2 r0 */
+ pxor_r2r(mm7, mm7); /* 00 00 00 00 00 00 00 00 */
+ punpcklbw_r2r(mm5, mm6); /* R3 R2 R1 R0 r3 r2 r1 r0 */
+
+ /* create Cb (result in mm1) */
+ movd_m2r(*(mmx_t *)cr, mm1); /* 0 0 0 0 u3 u2 u1 u0 */
+ punpcklbw_r2r(mm7, mm1); /* 0 u3 0 u2 00 u1 00 u0 */
+ punpckldq_r2r(mm1, mm1); /* 00 u1 00 u0 00 u1 00 u0 */
+ psubw_m2r(MMX_80w, mm1); /* mm1-128:u1 u1 u0 u0 u1 u1 u0 u0 */
+ /* create Cb_g (result in mm5) */
+ movq_r2r(mm1, mm5); /* u1 u1 u0 u0 u1 u1 u0 u0 */
+ pmullw_m2r(MMX32_Ugrncoeff, mm5); /* blue*-109dec=1.7129*64 */
+ pmullw_m2r(MMX32_Ubluecoeff, mm1); /* blue*114dec=1.78125*64 */
+ psraw_i2r(6, mm5); /* blue=red/64 */
+ psraw_i2r(6, mm1); /* blue=blue/64 */
+
+ /* create G (result in mm7) */
+ movq_r2r(mm2, mm3); /* 0 L3 0 L1 0 l3 0 l1 */
+ movq_r2r(mm4, mm7); /* 0 L2 0 L0 0 l2 0 l1 */
+ paddsw_r2r(mm5, mm3); /* lum1+Cb_g:x G3t x G1t x g3t x g1t */
+ paddsw_r2r(mm5, mm7); /* lum1+Cb_g:x G2t x G0t x g2t x g0t */
+ paddsw_r2r(mm0, mm3); /* lum1+Cr_g:x G3 x G1 x g3 x g1 */
+ paddsw_r2r(mm0, mm7); /* lum1+blue:x G2 x G0 x g2 x g0 */
+ packuswb_r2r(mm3, mm3); /* G3 G1 g3 g1 G3 G1 g3 g1 */
+ packuswb_r2r(mm7, mm7); /* G2 G0 g2 g0 G2 G0 g2 g0 */
+ punpcklbw_r2r(mm3, mm7); /* G3 G2 G1 G0 g3 g2 g1 g0 */
+
+ /* create B (result in mm5) */
+ movq_r2r(mm2, mm3); /* 0 L3 0 L1 0 l3 0 l1 */
+ movq_r2r(mm4, mm5); /* 0 L2 0 L0 0 l2 0 l1 */
+ paddsw_r2r(mm1, mm3); /* lum1+blue:x B3 x B1 x b3 x b1 */
+ paddsw_r2r(mm1, mm5); /* lum1+blue:x B2 x B0 x b2 x b0 */
+ packuswb_r2r(mm3, mm3); /* B3 B1 b3 b1 B3 B1 b3 b1 */
+ packuswb_r2r(mm5, mm5); /* B2 B0 b2 b0 B2 B0 b2 b0 */
+ punpcklbw_r2r(mm3, mm5); /* B3 B2 B1 B0 b3 b2 b1 b0 */
+
+ /* fill destination row1 (needed are mm6=Rr,mm7=Gg,mm5=Bb) */
+
+ pxor_r2r(mm2, mm2); /* 0 0 0 0 0 0 0 0 */
+ pxor_r2r(mm4, mm4); /* 0 0 0 0 0 0 0 0 */
+ movq_r2r(mm6, mm1); /* R3 R2 R1 R0 r3 r2 r1 r0 */
+ movq_r2r(mm5, mm3); /* B3 B2 B1 B0 b3 b2 b1 b0 */
+ /* process lower lum */
+ punpcklbw_r2r(mm4, mm1); /* 0 r3 0 r2 0 r1 0 r0 */
+ punpcklbw_r2r(mm4, mm3); /* 0 b3 0 b2 0 b1 0 b0 */
+ movq_r2r(mm1, mm2); /* 0 r3 0 r2 0 r1 0 r0 */
+ movq_r2r(mm3, mm0); /* 0 b3 0 b2 0 b1 0 b0 */
+ punpcklwd_r2r(mm1, mm3); /* 0 r1 0 b1 0 r0 0 b0 */
+ punpckhwd_r2r(mm2, mm0); /* 0 r3 0 b3 0 r2 0 b2 */
+
+ pxor_r2r(mm2, mm2); /* 0 0 0 0 0 0 0 0 */
+ movq_r2r(mm7, mm1); /* G3 G2 G1 G0 g3 g2 g1 g0 */
+ punpcklbw_r2r(mm1, mm2); /* g3 0 g2 0 g1 0 g0 0 */
+ punpcklwd_r2r(mm4, mm2); /* 0 0 g1 0 0 0 g0 0 */
+ por_r2r(mm3, mm2); /* 0 r1 g1 b1 0 r0 g0 b0 */
+ movq_r2m(mm2, *(mmx_t *)row1); /* wrote out ! row1 */
+
+ pxor_r2r(mm2, mm2); /* 0 0 0 0 0 0 0 0 */
+ punpcklbw_r2r(mm1, mm4); /* g3 0 g2 0 g1 0 g0 0 */
+ punpckhwd_r2r(mm2, mm4); /* 0 0 g3 0 0 0 g2 0 */
+ por_r2r(mm0, mm4); /* 0 r3 g3 b3 0 r2 g2 b2 */
+ movq_r2m(mm4, *(mmx_t *)(row1+2)); /* wrote out ! row1 */
+
+ /* fill destination row2 (needed are mm6=Rr,mm7=Gg,mm5=Bb) */
+ /* this can be done "destructive" */
+ pxor_r2r(mm2, mm2); /* 0 0 0 0 0 0 0 0 */
+ punpckhbw_r2r(mm2, mm6); /* 0 R3 0 R2 0 R1 0 R0 */
+ punpckhbw_r2r(mm1, mm5); /* G3 B3 G2 B2 G1 B1 G0 B0 */
+ movq_r2r(mm5, mm1); /* G3 B3 G2 B2 G1 B1 G0 B0 */
+ punpcklwd_r2r(mm6, mm1); /* 0 R1 G1 B1 0 R0 G0 B0 */
+ movq_r2m(mm1, *(mmx_t *)(row1+cols)); /* wrote out ! row2 */
+ punpckhwd_r2r(mm6, mm5); /* 0 R3 G3 B3 0 R2 G2 B2 */
+ movq_r2m(mm5, *(mmx_t *)(row1+cols+2)); /* wrote out ! row2 */
+
+ lum+=4;
+ cr+=2;
+ cb+=2;
+ row1 +=4;
+ }
+ lum += cols;
+ row1 += cols;
+ }
+
+ emms();
+
+}
+#endif
+
diff --git a/gst/colorspace/yuv2rgb.h b/gst/colorspace/yuv2rgb.h
new file mode 100644
index 00000000..be173bca
--- /dev/null
+++ b/gst/colorspace/yuv2rgb.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 1995 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice and the following
+ * two paragraphs appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef __YUV2RGB_H__
+#define __YUV2RGB_H__
+
+#include <gst/gst.h>
+#include <gstcolorspace.h>
+
+G_BEGIN_DECLS
+
+#if 0
+typedef struct _GstColorspaceYUVTables GstColorspaceYUVTables;
+
+struct _GstColorspaceYUVTables {
+ int gammaCorrectFlag;
+ double gammaCorrect;
+ int chromaCorrectFlag;
+ double chromaCorrect;
+
+ int *L_tab, *Cr_r_tab, *Cr_g_tab, *Cb_g_tab, *Cb_b_tab;
+
+ /*
+ * We define tables that convert a color value between -256 and 512
+ * into the R, G and B parts of the pixel. The normal range is 0-255.
+ **/
+
+ long *r_2_pix;
+ long *g_2_pix;
+ long *b_2_pix;
+};
+
+
+typedef struct _GstColorspaceConverter GstColorspaceConverter;
+typedef void (*GstColorspaceConvertFunction) (GstColorspaceConverter *space, guchar *src, guchar *dest);
+
+struct _GstColorspaceConverter {
+ guint width;
+ guint height;
+ guint insize;
+ guint outsize;
+ /* private */
+ GstColorspaceYUVTables *color_tables;
+ GstColorspaceConvertFunction convert;
+};
+#endif
+
+void gst_colorspace_table_init (GstColorspace *space);
+
+void gst_colorspace_I420_to_rgb32(GstColorspace *space,
+ unsigned char *src, unsigned char *dest);
+void gst_colorspace_I420_to_rgb24(GstColorspace *space,
+ unsigned char *src, unsigned char *dest);
+void gst_colorspace_I420_to_rgb16(GstColorspace *space,
+ unsigned char *src, unsigned char *dest);
+void gst_colorspace_YV12_to_rgb32(GstColorspace *space,
+ unsigned char *src, unsigned char *dest);
+void gst_colorspace_YV12_to_rgb24(GstColorspace *space,
+ unsigned char *src, unsigned char *dest);
+void gst_colorspace_YV12_to_rgb16(GstColorspace *space,
+ unsigned char *src, unsigned char *dest);
+
+#if 0
+GstColorspaceYUVTables * gst_colorspace_init_yuv(long depth,
+ long red_mask, long green_mask, long blue_mask);
+#endif
+
+
+#if 0
+GstColorspaceConverter* gst_colorspace_yuv2rgb_get_converter (const GstCaps *from, const GstCaps *to);
+#define gst_colorspace_convert(converter, src, dest) \
+ (converter)->convert((converter), (src), (dest))
+void gst_colorspace_converter_destroy (GstColorspaceConverter *space);
+#endif
+
+G_END_DECLS
+
+#endif
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-09-06 01:35:59 +0000