From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mslow1.mail.gandi.net (mslow1.mail.gandi.net [217.70.178.240]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5EB591D1302 for ; Mon, 28 Oct 2024 09:50:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.178.240 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730109058; cv=none; b=lrWrYJkj8LaC9n3/oAVkbsFXlpxiOoUPJfL0T2Hr8MxJU1KXAxl+g3+l5ZHXQTNTcZktYX8GYIUgr1MPB3eomkZM8+/s9UOjor2G4N4rAO5OCz+VL1BvVWuElm1PBCg3fIC2m3W+tivJYoJZYMsmEtxNCOJEgoEwht3b2nfW6+E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730109058; c=relaxed/simple; bh=pEpLQyOtqsi2BE3Zwt7IXabIsc/i0fnuQ1kzKBJIYIA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=djIxw+7b3boQ0cFl9hSel1rVHq0jCw7ux4eZSIwF9lu0CccI4TATum4dSX4AHZzZRdgh15CQrdIPymxJGwjyoljQwsERoAgDvNle3L9pegDKFtStQkxVYDi4CU7IjRzHXTsx7jcg3xGQBjauoh5gZB2TtzGST7KB2/6csB8jRTM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=KJYtdqqW; arc=none smtp.client-ip=217.70.178.240 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="KJYtdqqW" Received: from relay6-d.mail.gandi.net (unknown [217.70.183.198]) by mslow1.mail.gandi.net (Postfix) with ESMTP id 7A015C24A3 for ; Mon, 28 Oct 2024 09:50:48 +0000 (UTC) Received: by mail.gandi.net (Postfix) with ESMTPSA id 20C59C0008; Mon, 28 Oct 2024 09:50:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1730109041; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7fe/FH3bSXs2d9VlwNT8lNakpyNbunni3I361WgJSR4=; b=KJYtdqqWi6McbqL6m43h2XEi5KaAbT5fKIYEzjCVrXX9Sx25BOqgaM1ilPKxAUZ5apG9Jc UNYESFq7bK8q1igDTv/09ksGU82e9e8dJ2k63wpP1ALjEEjkbyVciDRy0kJaH2TjxASKhR ZWjGYqIdbuo4U1whl36Zhs8dNw1AIgkhnM4cYauMIUAClJfhVU34L8Ok25dSicgrruuZx6 6bpnMSAmy9D0k0M4AU8x5gpY1p0h7awzbOHBmtR8YWSEA/H7izfevweFpyVIccg9TdwlgR Hnpd/WMB2DTzF0Nfnsa8j5vE4JZDOnO5FYJrX/btx/Wr0YIjKnPcbQP+LBkuGQ== Date: Mon, 28 Oct 2024 10:50:38 +0100 From: Louis Chauvet To: =?iso-8859-1?Q?Ma=EDra?= Canal Cc: Rodrigo Siqueira , Melissa Wen , Haneen Mohammed , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Simona Vetter , dri-devel@lists.freedesktop.org, arthurgrillo@riseup.net, linux-kernel@vger.kernel.org, jeremie.dautheribes@bootlin.com, miquel.raynal@bootlin.com, thomas.petazzoni@bootlin.com, seanpaul@google.com, marcheu@google.com, nicolejadeyee@google.com, 20241007-yuv-v12-0-01c1ada6fec8@bootlin.com Subject: Re: [PATCH RESEND v2 1/8] drm/vkms: Create helpers macro to avoid code duplication in format callbacks Message-ID: Mail-Followup-To: =?iso-8859-1?Q?Ma=EDra?= Canal , Rodrigo Siqueira , Melissa Wen , Haneen Mohammed , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Simona Vetter , dri-devel@lists.freedesktop.org, arthurgrillo@riseup.net, linux-kernel@vger.kernel.org, jeremie.dautheribes@bootlin.com, miquel.raynal@bootlin.com, thomas.petazzoni@bootlin.com, seanpaul@google.com, marcheu@google.com, nicolejadeyee@google.com, 20241007-yuv-v12-0-01c1ada6fec8@bootlin.com References: <20241007-b4-new-color-formats-v2-0-d47da50d4674@bootlin.com> <20241007-b4-new-color-formats-v2-1-d47da50d4674@bootlin.com> <0b595d86-dbb5-43ae-9eb4-5f611013f6e8@riseup.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <0b595d86-dbb5-43ae-9eb4-5f611013f6e8@riseup.net> X-GND-Sasl: louis.chauvet@bootlin.com On 26/10/24 - 11:29, Maíra Canal wrote: > Hi Louis, > > On 07/10/24 13:46, Louis Chauvet wrote: > > The callback functions for line conversion are almost identical for > > some format. The generic READ_LINE macro generate all the required > > boilerplate to process a line. > > > > Two overrides of this macro have been added to avoid duplication of > > the same arguments every time. > > > > Signed-off-by: Louis Chauvet > > --- > > drivers/gpu/drm/vkms/vkms_formats.c | 163 +++++++++++++----------------------- > > 1 file changed, 58 insertions(+), 105 deletions(-) > > > > diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c > > index f9841b8000c4..8f1bcca38148 100644 > > --- a/drivers/gpu/drm/vkms/vkms_formats.c > > +++ b/drivers/gpu/drm/vkms/vkms_formats.c > > @@ -292,6 +292,58 @@ VISIBLE_IF_KUNIT struct pixel_argb_u16 argb_u16_from_yuv888(u8 y, u8 channel_1, > > } > > EXPORT_SYMBOL_IF_KUNIT(argb_u16_from_yuv888); > > +/** > > + * READ_LINE() - Generic generator for a read_line function which can be used for format with one > > + * plane and a block_h == block_w == 1. > > + * > > + * @function_name: Function name to generate > + * @pixel_name: temporary pixel name used in the @__VA_ARGS__ parameters > > s/temporary/Temporary > > > + * @pixel_type: Used to specify the type you want to cast the pixel pointer > > + * @callback: Callback to call for each pixels. This fonction should take @__VA_ARGS__ as parameter > > + * and return a pixel_argb_u16 > > + * @__VA_ARGS__: Argument to pass inside the callback. You can use @pixel_name to access current > > + * pixel. > > + */ > > +#define READ_LINE(function_name, pixel_name, pixel_type, callback, ...) \ > > +static void function_name(const struct vkms_plane_state *plane, int x_start, \ > > + int y_start, enum pixel_read_direction direction, int count, \ > > + struct pixel_argb_u16 out_pixel[]) \ > > +{ \ > > + struct pixel_argb_u16 *end = out_pixel + count; \ > > + int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); \ > > + u8 *src_pixels; \ > > + \ > > + packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); \ > > + \ > > + while (out_pixel < end) { \ > > + pixel_type *(pixel_name) = (pixel_type *)src_pixels; \ > > + *out_pixel = (callback)(__VA_ARGS__); \ > > + out_pixel += 1; \ > > + src_pixels += step; \ > > + } \ > > +} > > + > > +/** > > + * READ_LINE_ARGB8888() - Generic generator for ARGB8888 formats. > > + * The pixel type used is u8, so pixel_name[0]..pixel_name[n] are the n components of the pixel. > > + * > > + * @function_name: Function name to generate > > + * @pixel_name: temporary pixel to use in @a, @r, @g and @b parameters > > + * @a, @r, @g, @b: value of each channel > > + */ > > +#define READ_LINE_ARGB8888(function_name, pixel_name, a, r, g, b) \ > > + READ_LINE(function_name, pixel_name, u8, argb_u16_from_u8888, a, r, g, b) > > +/** > > + * READ_LINE_ARGB16161616() - Generic generator for ARGB16161616 formats. > > + * The pixel type used is u8, so pixel_name[0]..pixel_name[n] are the n components of the pixel. > > s/u8/u16 Thanks, Louis Chauvet > Best Regard, > - Maíra > > > + * > > + * @function_name: Function name to generate > > + * @pixel_name: temporary pixel to use in @a, @r, @g and @b parameters > > + * @a, @r, @g, @b: value of each channel > > + */ > > +#define READ_LINE_16161616(function_name, pixel_name, a, r, g, b) \ > > + READ_LINE(function_name, pixel_name, u16, argb_u16_from_u16161616, a, r, g, b) > > + > > /* > > * The following functions are read_line function for each pixel format supported by VKMS. > > * > > @@ -378,118 +430,19 @@ static void R4_read_line(const struct vkms_plane_state *plane, int x_start, > > Rx_read_line(plane, x_start, y_start, direction, count, out_pixel); > > } > > -static void R8_read_line(const struct vkms_plane_state *plane, int x_start, > > - int y_start, enum pixel_read_direction direction, int count, > > - struct pixel_argb_u16 out_pixel[]) > > -{ > > - struct pixel_argb_u16 *end = out_pixel + count; > > - u8 *src_pixels; > > - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); > > - > > - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); > > - > > - while (out_pixel < end) { > > - *out_pixel = argb_u16_from_gray8(*src_pixels); > > - src_pixels += step; > > - out_pixel += 1; > > - } > > -} > > - > > -static void ARGB8888_read_line(const struct vkms_plane_state *plane, int x_start, int y_start, > > - enum pixel_read_direction direction, int count, > > - struct pixel_argb_u16 out_pixel[]) > > -{ > > - struct pixel_argb_u16 *end = out_pixel + count; > > - u8 *src_pixels; > > - > > - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); > > - > > - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); > > - > > - while (out_pixel < end) { > > - u8 *px = (u8 *)src_pixels; > > - *out_pixel = argb_u16_from_u8888(px[3], px[2], px[1], px[0]); > > - out_pixel += 1; > > - src_pixels += step; > > - } > > -} > > - > > -static void XRGB8888_read_line(const struct vkms_plane_state *plane, int x_start, int y_start, > > - enum pixel_read_direction direction, int count, > > - struct pixel_argb_u16 out_pixel[]) > > -{ > > - struct pixel_argb_u16 *end = out_pixel + count; > > - u8 *src_pixels; > > - > > - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); > > - > > - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); > > - > > - while (out_pixel < end) { > > - u8 *px = (u8 *)src_pixels; > > - *out_pixel = argb_u16_from_u8888(255, px[2], px[1], px[0]); > > - out_pixel += 1; > > - src_pixels += step; > > - } > > -} > > - > > -static void ARGB16161616_read_line(const struct vkms_plane_state *plane, int x_start, > > - int y_start, enum pixel_read_direction direction, int count, > > - struct pixel_argb_u16 out_pixel[]) > > -{ > > - struct pixel_argb_u16 *end = out_pixel + count; > > - u8 *src_pixels; > > - > > - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); > > - > > - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); > > - > > - while (out_pixel < end) { > > - u16 *px = (u16 *)src_pixels; > > - *out_pixel = argb_u16_from_u16161616(px[3], px[2], px[1], px[0]); > > - out_pixel += 1; > > - src_pixels += step; > > - } > > -} > > - > > -static void XRGB16161616_read_line(const struct vkms_plane_state *plane, int x_start, > > - int y_start, enum pixel_read_direction direction, int count, > > - struct pixel_argb_u16 out_pixel[]) > > -{ > > - struct pixel_argb_u16 *end = out_pixel + count; > > - u8 *src_pixels; > > - > > - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); > > - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); > > +READ_LINE_ARGB8888(XRGB8888_read_line, px, 255, px[2], px[1], px[0]) > > - while (out_pixel < end) { > > - __le16 *px = (__le16 *)src_pixels; > > - *out_pixel = argb_u16_from_le16161616(cpu_to_le16(0xFFFF), px[2], px[1], px[0]); > > - out_pixel += 1; > > - src_pixels += step; > > - } > > -} > > +READ_LINE_ARGB8888(ARGB8888_read_line, px, px[3], px[2], px[1], px[0]) > > -static void RGB565_read_line(const struct vkms_plane_state *plane, int x_start, > > - int y_start, enum pixel_read_direction direction, int count, > > - struct pixel_argb_u16 out_pixel[]) > > -{ > > - struct pixel_argb_u16 *end = out_pixel + count; > > - u8 *src_pixels; > > - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); > > +READ_LINE_16161616(ARGB16161616_read_line, px, px[3], px[2], px[1], px[0]); > > +READ_LINE_16161616(XRGB16161616_read_line, px, 0xFFFF, px[2], px[1], px[0]); > > - int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); > > +READ_LINE(RGB565_read_line, px, __le16, argb_u16_from_RGB565, px) > > - while (out_pixel < end) { > > - __le16 *px = (__le16 *)src_pixels; > > +READ_LINE(R8_read_line, px, u8, argb_u16_from_gray8, *px) > > - *out_pixel = argb_u16_from_RGB565(px); > > - out_pixel += 1; > > - src_pixels += step; > > - } > > -} > > /* > > * This callback can be used for YUV formats where U and V values are > >