* mediaLib accelerated yuv2rgb conversion routines (for sparc solaris)

* fix a few compiler warnings in video_out_syncfb.c
* yuv2rgb overwrites memory when vertical scale factor is exactly 2.0
  (step_dy == 16384)

CVS patchset: 244
CVS date: 2001/07/04 14:01:50

1 files changed, 288 insertions, 0 deletions

diff --git a/src/video_out/yuv2rgb_mlib.c b/src/video_out/yuv2rgb_mlib.c
new file mode 100644
index 000000000..7d0b56fa7
--- /dev/null
+++ b/src/video_out/yuv2rgb_mlib.c
@@ -0,0 +1,288 @@
+/*
+ * yuv2rgb_mlib.c
+ * Copyright (C) 2000-2001 Silicon Integrated System Corp.
+ * All Rights Reserved.
+ *
+ * Author: Juergen Keil <jk@tools.de>
+ *
+ * This file is part of xine, a free unix video player.
+ *
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * xine 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "config.h"
+
+#if HAVE_MLIB
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <mlib_video.h>
+
+#include "attributes.h"
+#include "yuv2rgb.h"
+
+
+static void scale_line (uint8_t *source, uint8_t *dest,
+			int width, int step) {
+
+  unsigned p1;
+  unsigned p2;
+  int dx;
+
+  p1 = *source++;
+  p2 = *source++;
+  dx = 0;
+
+  while (width) {
+
+    /*
+    printf ("scale_line, width = %d\n", width);
+    printf ("scale_line, dx = %d, p1 = %d, p2 = %d\n", dx, p1, p2);
+    */
+ 
+    *dest = (p1 * (32768 - dx) + p2 * dx) / 32768;
+
+    dx += step;
+    while (dx > 32768) {
+      dx -= 32768;
+      p1 = p2;
+      p2 = *source++;
+    }
+
+    dest ++;
+    width --;
+  }
+}
+			
+
+
+static void mlib_yuv420_rgb24 (yuv2rgb_t *this,
+			       uint8_t * image, uint8_t * py,
+			       uint8_t * pu, uint8_t * pv)
+{
+  int height;
+  int dy;
+  mlib_status mlib_stat;
+
+  if (this->do_scale) {
+    dy = 0;
+    height = this->source_height >> 1;
+
+    while (--height >= 0) {
+      scale_line (pu, this->u_buffer,
+		  this->dest_width >> 1, this->step_dx);
+      pu += this->uv_stride;
+
+      scale_line (pv, this->v_buffer,
+		  this->dest_width >> 1, this->step_dx);
+      pv += this->uv_stride;
+
+      scale_line (py, this->y_buffer, 
+		  this->dest_width, this->step_dx);
+      py += this->y_stride;
+      scale_line (py, this->y_buffer + this->dest_width, 
+		  this->dest_width, this->step_dx);
+      py += this->y_stride;
+	
+      mlib_stat = mlib_VideoColorYUV2RGB420(image,
+					    this->y_buffer, 
+					    this->u_buffer,
+					    this->v_buffer,
+					    this->dest_width & ~1, 2,
+					    this->rgb_stride,
+					    this->dest_width,
+					    this->dest_width >> 1);
+      dy += this->step_dy;
+      image += this->rgb_stride;
+      
+      while (dy < 32768) {
+	memcpy (image, (uint8_t*)image-this->rgb_stride, this->dest_width*6);
+	dy += this->step_dy;
+	image += this->rgb_stride;
+      }
+      dy -= 32768;
+
+      dy += this->step_dy;
+      image += this->rgb_stride;
+      
+      while (dy < 32768) {
+	memcpy (image, (uint8_t*)image-this->rgb_stride, this->dest_width*3);
+	dy += this->step_dy;
+	image += this->rgb_stride;
+      }
+      dy -= 32768;
+    }
+  } else {
+    mlib_stat = mlib_VideoColorYUV2RGB420(image, py, pu, pv,
+					  this->source_width,
+					  this->source_height,
+					  this->rgb_stride,
+					  this->y_stride,
+					  this->uv_stride);
+  }
+}
+
+static void mlib_yuv420_argb32 (yuv2rgb_t *this,
+				uint8_t * image, uint8_t * py,
+				uint8_t * pu, uint8_t * pv)
+{
+  int height;
+  int dy;
+  mlib_status mlib_stat;
+
+  if (this->do_scale) {
+    dy = 0;
+    height = this->source_height >> 1;
+
+    while (--height >= 0) {
+      scale_line (pu, this->u_buffer,
+		  this->dest_width >> 1, this->step_dx);
+      pu += this->uv_stride;
+
+      scale_line (pv, this->v_buffer,
+		  this->dest_width >> 1, this->step_dx);
+      pv += this->uv_stride;
+
+      scale_line (py, this->y_buffer, 
+		  this->dest_width, this->step_dx);
+      py += this->y_stride;
+      scale_line (py, this->y_buffer + this->dest_width, 
+		  this->dest_width, this->step_dx);
+      py += this->y_stride;
+	
+      mlib_stat = mlib_VideoColorYUV2ARGB420(image,
+					     this->y_buffer, 
+					     this->u_buffer,
+					     this->v_buffer,
+					     this->dest_width & ~1, 2,
+					     this->rgb_stride,
+					     this->dest_width,
+					     this->dest_width >> 1);
+      dy += this->step_dy;
+      image += this->rgb_stride;
+      
+      while (dy < 32768) {
+	memcpy (image, (uint8_t*)image-this->rgb_stride, this->dest_width*8);
+	dy += this->step_dy;
+	image += this->rgb_stride;
+      }
+      dy -= 32768;
+
+      dy += this->step_dy;
+      image += this->rgb_stride;
+      
+      while (dy < 32768) {
+	memcpy (image, (uint8_t*)image-this->rgb_stride, this->dest_width*4);
+	dy += this->step_dy;
+	image += this->rgb_stride;
+      }
+      dy -= 32768;
+    }
+  } else {
+    mlib_stat = mlib_VideoColorYUV2ARGB420(image, py, pu, pv,
+					   this->source_width,
+					   this->source_height,
+					   this->rgb_stride,
+					   this->y_stride,
+					   this->uv_stride);
+  }
+}
+
+static void mlib_yuv420_abgr32 (yuv2rgb_t *this,
+				uint8_t * image, uint8_t * py,
+				uint8_t * pu, uint8_t * pv)
+{
+  int height;
+  int dy;
+  mlib_status mlib_stat;
+
+  if (this->do_scale) {
+    dy = 0;
+    height = this->source_height >> 1;
+
+    while (--height >= 0) {
+      scale_line (pu, this->u_buffer,
+		  this->dest_width >> 1, this->step_dx);
+      pu += this->uv_stride;
+
+      scale_line (pv, this->v_buffer,
+		  this->dest_width >> 1, this->step_dx);
+      pv += this->uv_stride;
+
+      scale_line (py, this->y_buffer, 
+		  this->dest_width, this->step_dx);
+      py += this->y_stride;
+      scale_line (py, this->y_buffer + this->dest_width, 
+		  this->dest_width, this->step_dx);
+      py += this->y_stride;
+	
+      mlib_stat = mlib_VideoColorYUV2ABGR420(image,
+					     this->y_buffer, 
+					     this->u_buffer,
+					     this->v_buffer,
+					     this->dest_width & ~1, 2,
+					     this->rgb_stride,
+					     this->dest_width,
+					     this->dest_width >> 1);
+      dy += this->step_dy;
+      image += this->rgb_stride;
+      
+      while (dy < 32768) {
+	memcpy (image, (uint8_t*)image-this->rgb_stride, this->dest_width*8);
+	dy += this->step_dy;
+	image += this->rgb_stride;
+      }
+      dy -= 32768;
+
+      dy += this->step_dy;
+      image += this->rgb_stride;
+      
+      while (dy < 32768) {
+	memcpy (image, (uint8_t*)image-this->rgb_stride, this->dest_width*4);
+	dy += this->step_dy;
+	image += this->rgb_stride;
+      }
+      dy -= 32768;
+    }
+  } else {
+    mlib_stat = mlib_VideoColorYUV2ABGR420(image, py, pu, pv,
+					   this->source_width,
+					   this->source_height,
+					   this->rgb_stride,
+					   this->y_stride,
+					   this->uv_stride);
+  }
+}
+
+
+void yuv2rgb_init_mlib (yuv2rgb_t *this, int mode)
+{
+  switch (mode) {
+  case MODE_24_RGB:
+    this->yuv2rgb_fun = mlib_yuv420_rgb24;
+    break;
+  case MODE_32_RGB:
+    this->yuv2rgb_fun = mlib_yuv420_argb32;
+    break;
+  case MODE_32_BGR:
+    this->yuv2rgb_fun = mlib_yuv420_abgr32;
+    break;
+  }
+}
+
+
+#endif	/* HAVE_MLIB */