From a56757137c9b8e11e5380270a1ebbbd29ad0b0d0 Mon Sep 17 00:00:00 2001
From: Dave Chapman <dave@dchapman.com>
Date: Mon, 26 Mar 2007 01:32:31 +0000
Subject: [PATCH] mpegplayer for grayscale targets.  Note that performance is
 slow...

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12913 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/SUBDIRS                        |  5 ++-
 apps/plugins/mpegplayer/Makefile            |  2 +-
 apps/plugins/mpegplayer/mpegplayer.c        | 39 +++++++++++++++++++--
 apps/plugins/mpegplayer/video_out_rockbox.c |  6 ++++
 4 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/apps/plugins/SUBDIRS b/apps/plugins/SUBDIRS
index 4a2a819b97..70cffe7e0d 100644
--- a/apps/plugins/SUBDIRS
+++ b/apps/plugins/SUBDIRS
@@ -31,10 +31,9 @@ pacbox
 doom
 #endif
 
-/* For all the colour targets */
-#if defined(HAVE_LCD_COLOR)
+/* For all the swcodec targets */
+#if CONFIG_CODEC == SWCODEC
 mpegplayer
 #endif
 
-
 #endif /* IRIVER_IFP7XX_SERIES */
diff --git a/apps/plugins/mpegplayer/Makefile b/apps/plugins/mpegplayer/Makefile
index 7b52d2df5e..28691f4b17 100644
--- a/apps/plugins/mpegplayer/Makefile
+++ b/apps/plugins/mpegplayer/Makefile
@@ -8,7 +8,7 @@
 #
 
 INCLUDES = -I$(APPSDIR) -I.. -I. $(TARGET_INC) -I$(FIRMDIR)/include -I$(FIRMDIR)/export \
- -I$(FIRMDIR)/common -I$(FIRMDIR)/drivers -I$(OUTDIR) -I$(BUILDDIR)
+ -I$(FIRMDIR)/common -I$(FIRMDIR)/drivers -I$(APPSDIR)/plugins/lib -I$(OUTDIR) -I$(BUILDDIR)
 CFLAGS = $(INCLUDES) $(GCCOPTS) -O2 $(TARGET) $(EXTRA_DEFINES) \
  -DTARGET_ID=$(TARGET_ID) -DMEM=${MEMORYSIZE} -DPLUGIN
 
diff --git a/apps/plugins/mpegplayer/mpegplayer.c b/apps/plugins/mpegplayer/mpegplayer.c
index 80159e3be6..a5b71c089a 100644
--- a/apps/plugins/mpegplayer/mpegplayer.c
+++ b/apps/plugins/mpegplayer/mpegplayer.c
@@ -103,6 +103,7 @@ FPS     | 27Mhz   | 100Hz          | 44.1KHz   | 48KHz
 #include "mpeg2dec_config.h"
 
 #include "plugin.h"
+#include "gray.h"
 
 #include "mpeg2.h"
 #include "mpeg_settings.h"
@@ -270,8 +271,16 @@ static void button_loop(void)
                 /* Wait for video thread to stop */
                 while (videostatus == PLEASE_PAUSE) { rb->sleep(HZ/25); }
             }
+
+#ifndef HAVE_LCD_COLOR
+            gray_show(false);
+#endif
             result = mpeg_menu();
 
+#ifndef HAVE_LCD_COLOR
+            gray_show(true);
+#endif
+
             /* The menu can change the font, so restore */
             rb->lcd_setfont(FONT_SYSFIXED);
 
@@ -911,6 +920,10 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     size_t file_remaining;
     size_t n;
     size_t disk_buf_len;
+#ifndef HAVE_LCD_COLOR
+    long graysize;
+    int grayscales;
+#endif
 
     /* We define this here so it is on the main stack (in IRAM) */
     mad_fixed_t mad_frame_overlap[2][32][18];       /* 4608 bytes */
@@ -939,14 +952,28 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
        PCM audio data and some for libmpeg2 malloc use. */
     buffer_size = audiosize - (PCMBUFFER_SIZE+AUDIOBUFFER_SIZE+LIBMPEG2BUFFER_SIZE);
 
-    DEBUGF("audiosize=%d, buffer_size=%ld\n",audiosize,buffer_size);
-    buffer_size &= ~(0x7ff);  /* Round buffer down to nearest 2KB */
     DEBUGF("audiosize=%d, buffer_size=%ld\n",audiosize,buffer_size);
     buffer = mpeg2_malloc(buffer_size,-1);
 
     if (buffer == NULL)
         return PLUGIN_ERROR;
 
+#ifndef HAVE_LCD_COLOR
+    /* initialize the grayscale buffer: 32 bitplanes for 33 shades of gray. */
+    grayscales = gray_init(rb, buffer, buffer_size, false, LCD_WIDTH, LCD_HEIGHT,
+                           32, 2<<8, &graysize) + 1;
+    buffer += graysize;
+    buffer_size -= graysize;
+    if (grayscales < 33 || buffer_size <= 0)
+    {
+        rb->splash(HZ, "gray buf error");
+        return PLUGIN_ERROR;
+    }
+#endif
+
+    buffer_size &= ~(0x7ff);  /* Round buffer down to nearest 2KB */
+    DEBUGF("audiosize=%d, buffer_size=%ld\n",audiosize,buffer_size);
+
     mpa_buffer_size = AUDIOBUFFER_SIZE;
     mpa_buffer = mpeg2_malloc(mpa_buffer_size,-2);
 
@@ -1026,6 +1053,10 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
     audiostatus = STREAM_BUFFERING;
     videostatus = STREAM_PLAYING;
 
+#ifndef HAVE_LCD_COLOR
+    gray_show(true);
+#endif
+
     /* We put the video thread on the second processor for multi-core targets. */
     if ((videothread_id = rb->create_thread(video_thread,
         (uint8_t*)video_stack,VIDEO_STACKSIZE,"mpgvideo" IF_PRIO(,PRIORITY_PLAYBACK)
@@ -1074,6 +1105,10 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
         rb->sleep(HZ/10);
     }
 
+#ifndef HAVE_LCD_COLOR
+    gray_release();
+#endif
+
     rb->remove_thread(audiothread_id);
     rb->yield(); /* Is this needed? */
 
diff --git a/apps/plugins/mpegplayer/video_out_rockbox.c b/apps/plugins/mpegplayer/video_out_rockbox.c
index f6e33e9d97..b37b75449b 100644
--- a/apps/plugins/mpegplayer/video_out_rockbox.c
+++ b/apps/plugins/mpegplayer/video_out_rockbox.c
@@ -24,6 +24,7 @@
 #include "mpeg2dec_config.h"
 
 #include "plugin.h"
+#include "gray.h"
 
 extern struct plugin_api* rb;
 
@@ -188,6 +189,7 @@ static void yuv_bitmap_part(unsigned char * const src[3],
 
 void vo_draw_frame (uint8_t * const * buf)
 {
+#ifdef HAVE_LCD_COLOR
 #ifdef SIMULATOR
     yuv_bitmap_part(buf,0,0,image_width,
                     output_x,output_y,output_width,output_height);
@@ -197,6 +199,10 @@ void vo_draw_frame (uint8_t * const * buf)
                     0,0,image_width,
                     output_x,output_y,output_width,output_height);
 #endif
+#else
+    gray_ub_gray_bitmap_part(buf[0],0,0,image_width,
+                             output_x,output_y,output_width,output_height);
+#endif
 }
 
 #if LCD_WIDTH >= LCD_HEIGHT