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Froyo 32bpp fixes
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mtx512  
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 More options Aug 2 2010, 3:48 am
From: mtx512 <mtx51...@gmail.com>
Date: Mon, 2 Aug 2010 00:48:41 -0700 (PDT)
Local: Mon, Aug 2 2010 3:48 am
Subject: Froyo 32bpp fixes
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Hi,

Has anyone worked out the 32bpp fixes for Froyo. The patches for that
I had for Eclair (EGLDisplaySurface.cpp) won't work in Froyo.

many thanks!


 
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mtx512  
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 More options Aug 8 2010, 10:41 am
From: mtx512 <mtx51...@gmail.com>
Date: Sun, 8 Aug 2010 07:41:43 -0700 (PDT)
Local: Sun, Aug 8 2010 10:41 am
Subject: Re: Froyo 32bpp fixes
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The initial patches to get the screen displayed correctly are below. I
think a similar patch may need to be applied to some of the
applications to get them to display correctly.

project hardware/libhardware/
diff --git a/modules/gralloc/framebuffer.cpp b/modules/gralloc/
framebuffer.cpp
index 0195103..213af32 100644
--- a/modules/gralloc/framebuffer.cpp
+++ b/modules/gralloc/framebuffer.cpp
@@ -174,7 +174,7 @@ int mapFrameBufferLocked(struct private_module_t*
module)
     /*
      * Explicitly request 5/6/5
      */
-    info.bits_per_pixel = 16;
+/*    info.bits_per_pixel = 16;
     info.red.offset     = 11;
     info.red.length     = 5;
     info.green.offset   = 5;
@@ -183,6 +183,16 @@ int mapFrameBufferLocked(struct private_module_t*
module)
     info.blue.length    = 5;
     info.transp.offset  = 0;
     info.transp.length  = 0;
+*/
+    info.bits_per_pixel = 32;
+    info.red.offset     = 24;
+    info.red.length     = 8;
+    info.green.offset   = 16;
+    info.green.length   = 8;
+    info.blue.offset    = 8;
+    info.blue.length    = 8;
+    info.transp.offset  = 0;
+    info.transp.length  = 0;

      /*
      * Request NUM_BUFFERS screens (at lest 2 for page flipping)
@@ -347,7 +357,8 @@ int fb_device_open(hw_module_t const* module,
const char* name,
             const_cast<uint32_t&>(dev->device.width) = m->info.xres;
             const_cast<uint32_t&>(dev->device.height) = m->info.yres;
             const_cast<int&>(dev->device.stride) = stride;
-            const_cast<int&>(dev->device.format) =
HAL_PIXEL_FORMAT_RGB_565;
+//            const_cast<int&>(dev->device.format) =
HAL_PIXEL_FORMAT_RGB_565;
+            const_cast<int&>(dev->device.format) =
HAL_PIXEL_FORMAT_RGBA_8888;
             const_cast<float&>(dev->device.xdpi) = m->xdpi;
             const_cast<float&>(dev->device.ydpi) = m->ydpi;
             const_cast<float&>(dev->device.fps) = m->fps;

On Aug 2, 8:48 am, mtx512 <mtx51...@gmail.com> wrote:


 
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Yi Sun  
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 More options Aug 8 2010, 2:17 pm
From: Yi Sun <beyo...@gmail.com>
Date: Sun, 8 Aug 2010 11:17:22 -0700
Local: Sun, Aug 8 2010 2:17 pm
Subject: Re: Froyo 32bpp fixes
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How about the performance?
Yi

On Aug 8, 2010, at 7:41 AM, mtx512 <mtx51...@gmail.com> wrote:


 
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mtx512  
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 More options Aug 8 2010, 3:54 pm
From: mtx512 <mtx51...@gmail.com>
Date: Sun, 8 Aug 2010 12:54:00 -0700 (PDT)
Subject: Re: Froyo 32bpp fixes
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We're still depend on finding a OpenGL ES driver for adequate
performance.

On Aug 8, 7:17 pm, Yi Sun <beyo...@gmail.com> wrote:


 
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Yi Sun  
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 More options Aug 9 2010, 12:35 am
From: Yi Sun <beyo...@gmail.com>
Date: Sun, 8 Aug 2010 21:35:14 -0700
Local: Mon, Aug 9 2010 12:35 am
Subject: Re: Froyo 32bpp fixes
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I assume that you have test this patch somehow, do you mind that I put
this patch on to the android-x86.org downloading page? And we could
merge it into the foyo tree later.
Yi

--
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http://www.android-x86.org

 
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mtx512  
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 More options Aug 9 2010, 8:40 am
From: mtx512 <mtx51...@gmail.com>
Date: Mon, 9 Aug 2010 05:40:13 -0700 (PDT)
Local: Mon, Aug 9 2010 8:40 am
Subject: Re: Froyo 32bpp fixes
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Yes you can put the patch on android-x86.org.

I'm testing for x86 by building the source from the main repo
(android.git.kernel.org), unfortunately the trunk for froyo has now
been restricted to build a 64 bit OS only. Therefore I'm currently
using the tag android-2.2_r1.1. I'm currently trying to fix
touchscreen for my board as well explore an OpenGL ES solution for
GMA500.

On Aug 9, 5:35 am, Yi Sun <beyo...@gmail.com> wrote:


 
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Yi Sun  
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 More options Aug 9 2010, 2:51 pm
From: Yi Sun <beyo...@gmail.com>
Date: Mon, 9 Aug 2010 11:51:15 -0700
Local: Mon, Aug 9 2010 2:51 pm
Subject: Re: Froyo 32bpp fixes
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On Mon, Aug 9, 2010 at 5:40 AM, mtx512 <mtx51...@gmail.com> wrote:
> Yes you can put the patch on android-x86.org.

> I'm testing for x86 by building the source from the main repo
> (android.git.kernel.org), unfortunately the trunk for froyo has now
> been restricted to build a 64 bit OS only. Therefore I'm currently
> using the tag android-2.2_r1.1. I'm currently trying to fix
> touchscreen for my board as well explore an OpenGL ES solution for
> GMA500.

Just a double confirm, you did tested your patch with android-2.2_r1.1
and it works, right?

--
Android-x86
http://www.android-x86.org


 
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mtx512  
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 More options Aug 9 2010, 4:03 pm
From: mtx512 <mtx51...@gmail.com>
Date: Mon, 9 Aug 2010 13:03:04 -0700 (PDT)
Local: Mon, Aug 9 2010 4:03 pm
Subject: Re: Froyo 32bpp fixes
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Yes have tested, my screen now displays correctly.

On Aug 9, 7:51 pm, Yi Sun <beyo...@gmail.com> wrote:


 
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Yi Sun  
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 More options Aug 9 2010, 11:58 pm
From: Yi Sun <beyo...@gmail.com>
Date: Mon, 9 Aug 2010 20:58:55 -0700
Local: Mon, Aug 9 2010 11:58 pm
Subject: Re: Froyo 32bpp fixes
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Done
https://sites.google.com/a/android-x86.org/web/download/32bpp.patch?a...

I guess we will push it to repo as soon as we have a solution on the
performance.
Yi

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Chih-Wei Huang  
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 More options Aug 20 2010, 5:16 am
From: Chih-Wei Huang <cwhu...@android-x86.org>
Date: Fri, 20 Aug 2010 17:16:47 +0800
Local: Fri, Aug 20 2010 5:16 am
Subject: Re: Froyo 32bpp fixes
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Hi,
I'm testing the 32bpp patch.
It seems work, but the color is wrong.
Test on both on vm (uvesafb) and eeepc(i915),
with kernel 2.6.35.

Finally I found I have to change the pixel format
to BGRA_8888 to have the correct color:

const_cast<int&>(dev->device.format) = HAL_PIXEL_FORMAT_BGRA_8888;

Do you know what the problem is?

2010/8/10 mtx512 <mtx51...@gmail.com>:

> Yes have tested, my screen now displays correctly.

--
Chih-Wei
Android-x86 project
http://www.android-x86.org

 
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Jack  
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 More options Aug 22 2010, 10:57 pm
From: Jack <jlee2...@gmail.com>
Date: Sun, 22 Aug 2010 19:57:43 -0700 (PDT)
Local: Sun, Aug 22 2010 10:57 pm
Subject: Re: Froyo 32bpp fixes
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It is a way to hard code for 32bpp. That is not good if we want to
support devices which could not support it. Is there a way to
automatically detect current depth and initialize the framebuffer for
it?

On 8月20日, 下午5时16分, Chih-Wei Huang <cwhu...@android-x86.org> wrote:


 
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Chih-Wei Huang  
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 More options Aug 22 2010, 11:46 pm
From: Chih-Wei Huang <cwhu...@android-x86.org>
Date: Mon, 23 Aug 2010 11:46:21 +0800
Local: Sun, Aug 22 2010 11:46 pm
Subject: Re: Froyo 32bpp fixes
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Hmm, good suggestion.
I just checked the code.
Yes, it's possible to detect the bpp
at runtime.

在 2010年8月23日上午10:57，Jack <jlee2...@gmail.com> 寫道：

> It is a way to hard code for 32bpp. That is not good if we want to
> support devices which could not support it. Is there a way to
> automatically detect current depth and initialize the framebuffer for
> it?

--
Chih-Wei
Android-x86 project
http://www.android-x86.org

 
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