From d34041569e71fc9bd772354e94dc9d16061072a5 Mon Sep 17 00:00:00 2001
From: arpi_esp <arpi_esp@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sat, 24 Feb 2001 20:28:24 +0000
Subject: Initial revision

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@2 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 drivers/mga_vid_test.c | 221 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 221 insertions(+)
 create mode 100644 drivers/mga_vid_test.c

(limited to 'drivers/mga_vid_test.c')

diff --git a/drivers/mga_vid_test.c b/drivers/mga_vid_test.c
new file mode 100644
index 0000000000..c1057a9cf7
--- /dev/null
+++ b/drivers/mga_vid_test.c
@@ -0,0 +1,221 @@
+/*
+ *
+ * mga_vid_test.c
+ *
+ * Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ * Sept 1999
+ *
+ * This software has been released under the terms of the GNU Public
+ * license. See http://www.gnu.org/copyleft/gpl.html for details.
+ */
+
+//#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include "mga_vid.h"
+
+mga_vid_config_t config;
+uint8_t *mga_vid_base;
+uint32_t is_g400;
+
+#define SRC_IMAGE_WIDTH 256
+#define SRC_IMAGE_HEIGHT 256
+
+uint8_t y_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
+uint8_t cr_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
+uint8_t cb_image[SRC_IMAGE_WIDTH * SRC_IMAGE_HEIGHT];
+
+
+void
+write_frame_g200(uint8_t *y,uint8_t *cr, uint8_t *cb)
+{
+	uint8_t *dest;
+	uint32_t bespitch,h,w;
+
+	dest = mga_vid_base;
+	bespitch = (config.src_width + 31) & ~31;
+
+	for(h=0; h < config.src_height; h++) 
+	{
+		memcpy(dest, y, config.src_width);
+		y += config.src_width;
+		dest += bespitch;
+	}
+
+	for(h=0; h < config.src_height/2; h++) 
+	{
+		for(w=0; w < config.src_width/2; w++) 
+		{
+			*dest++ = *cb++;
+			*dest++ = *cr++;
+		}
+		dest += bespitch - config.src_width;
+	}
+}
+
+void
+write_frame_g400(uint8_t *y,uint8_t *cr, uint8_t *cb)
+{
+	uint8_t *dest;
+	uint32_t bespitch,h;
+
+	dest = mga_vid_base;
+	bespitch = (config.src_width + 31) & ~31;
+
+	for(h=0; h < config.src_height; h++) 
+	{
+		memcpy(dest, y, config.src_width);
+		y += config.src_width;
+		dest += bespitch;
+	}
+
+	for(h=0; h < config.src_height/2; h++) 
+	{
+		memcpy(dest, cb, config.src_width/2);
+		cb += config.src_width/2;
+		dest += bespitch/2;
+	}
+
+	for(h=0; h < config.src_height/2; h++) 
+	{
+		memcpy(dest, cr, config.src_width/2);
+		cr += config.src_width/2;
+		dest += bespitch/2;
+	}
+}
+
+void write_frame(uint8_t *y,uint8_t *cr, uint8_t *cb)
+{
+	if(is_g400)
+		write_frame_g400(y,cr,cb);
+	else
+		write_frame_g200(y,cr,cb);
+}
+
+void
+draw_cool_pattern(void)
+{
+	int i,x,y;
+
+	i = 0;
+	for (y=0; y<config.src_height; y++) {
+		for (x=0; x<config.src_width; x++) {
+			y_image[i++] = x*x/2 + y*y/2 - 128;
+		}
+	}
+
+	i = 0;
+	for (y=0; y<config.src_height/2; y++) 
+		for (x=0; x<config.src_width/2; x++) 
+		{
+				cr_image[i++] = x - 128;
+		}
+
+	i = 0;
+	for (y=0; y<config.src_height/2; y++) 
+		for (x=0; x<config.src_width/2; x++) 
+		{
+				cb_image[i++] = y - 128;
+		}
+}
+
+void
+draw_color_blend(void)
+{
+	int i,x,y;
+
+	i = 0;
+	for (y=0; y<config.src_height; y++) {
+		for (x=0; x<config.src_width; x++) {
+			y_image[i++] = 0;
+		}
+	}
+
+	i = 0;
+	for (y=0; y<config.src_height/2; y++) 
+		for (x=0; x<config.src_width/2; x++) 
+		{
+				cr_image[i++] = x - 128;
+		}
+
+	i = 0;
+	for (y=0; y<config.src_height/2; y++) 
+		for (x=0; x<config.src_width/2; x++) 
+		{
+				cb_image[i++] = y - 128;
+		}
+}
+
+
+int 
+main(int argc, char *argv[])
+{
+	int f;
+
+	f = open("/dev/mga_vid",O_RDWR);
+
+	if(f == -1)
+	{
+		fprintf(stderr,"Couldn't open driver\n");
+		exit(1);
+	}
+
+	config.src_width = SRC_IMAGE_WIDTH;
+	config.src_height= SRC_IMAGE_HEIGHT;
+	config.dest_width = SRC_IMAGE_WIDTH;
+	config.dest_height = SRC_IMAGE_HEIGHT;
+	config.x_org= 10;
+	config.y_org= 10;
+	config.colkey_on = 0;
+        config.format = MGA_VID_FORMAT_YV12;
+
+	if (ioctl(f,MGA_VID_CONFIG,&config))
+	{
+		perror("Error in config ioctl");
+	}
+
+	if (config.card_type == MGA_G200) 
+	{
+		printf("Testing MGA G200 Backend Scaler with %d MB of RAM\n", config.ram_size);
+	  is_g400 = 0;
+	}
+	else
+	{
+		printf("Testing MGA G400 Backend Scaler with %d MB of RAM\n", config.ram_size);
+	  is_g400 = 1;
+	}
+	
+	ioctl(f,MGA_VID_ON,0);
+	mga_vid_base = (uint8_t*)mmap(0,256 * 4096,PROT_WRITE,MAP_SHARED,f,0);
+	printf("mga_vid_base = %8p\n",mga_vid_base);
+
+
+	//memset(y_image,80,256 * 128);
+	//memset(cr_image,80,256/2 * 20);
+	//memset(cb_image,80,256/2 * 20);
+	write_frame(y_image,cr_image,cb_image);
+	printf("(1) There should be a green square, offset by 10 pixels from\n"
+			   "    the upper left corner displayed\n");
+	sleep(3);
+
+
+	draw_cool_pattern();
+	write_frame(y_image,cr_image,cb_image);
+	printf("(2) There should be a cool mosaic like pattern now.\n");
+	sleep(3);
+
+	draw_color_blend();
+	write_frame(y_image,cr_image,cb_image);
+	printf("(3) There should be a color blend with black, red, purple, blue\n"
+			   "    corners (starting top left going CW)\n");
+	sleep(3);
+
+	ioctl(f,MGA_VID_OFF,0);
+
+	close(f);
+	return 0;
+}
-- 
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