From nobody Mon Feb 9 18:44:22 2026 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) (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 BC2DD13D53B for ; Wed, 14 Aug 2024 08:19:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723623593; cv=none; b=roLwb1asLRLZt1xWA+R7PIttLflJDRRnm2gFw0Q2jukcdS5SlM0a4kTO1p6qp4eZh8HDjJ+L07Ha5pr8aF4vBzprTnMbWv74U0npjUKFU9AMOmdk0YWUtNoqkn08Z0LFF3e4dKWAGEzjYhRiV8XqkDiyt8hF9TalDdjiwDZkDR0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723623593; c=relaxed/simple; bh=RBF+mOuEEb0DdX+OD7VGfrmSjVRcmOGK9r7zIRQVJGs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=oVyQU/LuGxmDDteLvldSoaP8aZ7KtdJzMAby+6rc0KPll4CVKRYTdcPanxwlIxwhQ+BP+UhtHUIS9qm3UfW6xhMtt0yyhlQot3o9dz/fpahN6KxDk1XrFlQJaHELMwydXMdbEqkGGLEPfHgUsCoUUjD4DNtmAakUJYYGKQe3NTs= 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=Sd0rbp/z; arc=none smtp.client-ip=217.70.183.198 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="Sd0rbp/z" Received: by mail.gandi.net (Postfix) with ESMTPSA id 2BCA4C000C; Wed, 14 Aug 2024 08:19:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1723623590; 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=zFpORCPNREBN6z592weC6FbCQDcy1ab/TlfzvnZajH8=; b=Sd0rbp/zVU3E5sdAO1ovMShFfeeQ/f76tcf2hly1/2sRQZOzuCyPTyNqIP09RHmjWMus0+ WGT+PqQmdEL4a5PljmvRgHwb3aNbGbFyZ40ccxZM0V4OkI8CcOzXVy8wPDEPYNS3X2puzD KJvopmH5m7Zrb/nv3d3mOq2dNUX65zFNTPdIV1HhOk83hbaHIYmYzIlBVtM/RgOYh4JnJY pkN621pXFqQRuC6SUcdTcDICPqqPRY2ltqj6h7mSsTl4FL6Uh0rHXFJrQhmmBGnfeVdbSQ y/Bph0YI1Fa5KmcizmYE6scUbXLRzpTF7zve9oQCt7NRvHTJZnUr8Gzf7Cu//A== From: Louis Chauvet Date: Wed, 14 Aug 2024 10:19:37 +0200 Subject: [PATCH v2 4/8] drm/vkms: Add support for RGB565 formats 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="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240814-b4-new-color-formats-v2-4-8b3499cfe90e@bootlin.com> References: <20240814-b4-new-color-formats-v2-0-8b3499cfe90e@bootlin.com> In-Reply-To: <20240814-b4-new-color-formats-v2-0-8b3499cfe90e@bootlin.com> To: Rodrigo Siqueira , Melissa Wen , =?utf-8?q?Ma=C3=ADra_Canal?= , Haneen Mohammed , Daniel Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie Cc: 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, Louis Chauvet , 20240809-yuv-v10-0-1a7c764166f7@bootlin.com X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=2973; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=RBF+mOuEEb0DdX+OD7VGfrmSjVRcmOGK9r7zIRQVJGs=; b=owEBbQKS/ZANAwAIASCtLsZbECziAcsmYgBmvGie0Uv+IgeM70/olFWS+q/JLIewBCr8JhF7F fA1uWNJiu6JAjMEAAEIAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCZrxongAKCRAgrS7GWxAs 4tfSD/9x3h1HuQWRGpzyh61DU+16EAsEYhot+E9HJIKo+J427Hy8DHd7wiE4zBwNiljVIouKJad 4ak6RGZVl7+jHb/ZpelosF1Jn3gqUoPKT1yIBE+o8q0jcbgjlhuV/NJ43GVqxONWKdpFKeW77NB sF+mRK6hgoA+40yBup59ZrC1IXIjmIs8WG3e5+OfxTrLnSr4BJCh7Ur4Sy8IwC86L0neqD1rTDA 284RN80ewGRMqv33FsCNenCNcyIBKLC/aPMkwI/2bdq51ul2vGhO1YZEC5UTQWBTIFnQyAM5TQJ u749opsVYoyy5hvrHmxuaw55rbpo9+RthzpniVm+FFr80pNvpZ1vHdpsHjpo4kIETFcX+oXpqmd OK22adqMKJUJdrVD9AaIqvd04wPUgq8mAP4/ysjXL+xBCh7n2F+kcQ0312zPlwXNn4McYY0kRWy ox5H96k1s0KGxeHjRg1jGe1XnnKzri2V1PlyRm7oqVoQdtlCNNvDB2ZfBi2z5N0N9UM75oMXyr4 h8UGAtrFSNPXPREMQVGQdCsmMrj5iX5AInDovU69xaSSybIE8JRVpcSpNJsYg8FscBG87blzNsz pb4zTTjgHj/Peqb0mXCczAAVYMIWL5e52/LBtJ094WITOqwLsVjyj3fy8+ftHl24SKEgkIuBFB2 EIOdZjVM0JNS9Ag== X-Developer-Key: i=louis.chauvet@bootlin.com; a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-GND-Sasl: louis.chauvet@bootlin.com The format RGB565 was already supported. Add the support for: - BGR565 Signed-off-by: Louis Chauvet --- drivers/gpu/drm/vkms/vkms_formats.c | 25 ++++++++++++++++++++++++- drivers/gpu/drm/vkms/vkms_plane.c | 1 + 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkm= s_formats.c index 691fd8275f14..76cefd301b4a 100644 --- a/drivers/gpu/drm/vkms/vkms_formats.c +++ b/drivers/gpu/drm/vkms/vkms_formats.c @@ -247,7 +247,7 @@ static struct pixel_argb_u16 argb_u16_from_RGB565(const= __le16 *pixel) return out_pixel; } =20 -static struct pixel_argb_u16 argb_u16_from_gray8(u16 gray) +static struct pixel_argb_u16 argb_u16_from_gray8(u8 gray) { return argb_u16_from_u8888(255, gray, gray, gray); } @@ -257,6 +257,26 @@ static struct pixel_argb_u16 argb_u16_from_grayu16(u16= gray) return argb_u16_from_u16161616(0xFFFF, gray, gray, gray); } =20 +static struct pixel_argb_u16 argb_u16_from_BGR565(const __le16 *pixel) +{ + struct pixel_argb_u16 out_pixel; + + s64 fp_rb_ratio =3D drm_fixp_div(drm_int2fixp(65535), drm_int2fixp(31)); + s64 fp_g_ratio =3D drm_fixp_div(drm_int2fixp(65535), drm_int2fixp(63)); + + u16 rgb_565 =3D le16_to_cpu(*pixel); + s64 fp_b =3D drm_int2fixp((rgb_565 >> 11) & 0x1f); + s64 fp_g =3D drm_int2fixp((rgb_565 >> 5) & 0x3f); + s64 fp_r =3D drm_int2fixp(rgb_565 & 0x1f); + + out_pixel.a =3D (u16)0xffff; + out_pixel.b =3D drm_fixp2int_round(drm_fixp_mul(fp_b, fp_rb_ratio)); + out_pixel.g =3D drm_fixp2int_round(drm_fixp_mul(fp_g, fp_g_ratio)); + out_pixel.r =3D drm_fixp2int_round(drm_fixp_mul(fp_r, fp_rb_ratio)); + + return out_pixel; +} + VISIBLE_IF_KUNIT struct pixel_argb_u16 argb_u16_from_yuv888(u8 y, u8 chann= el_1, u8 channel_2, const struct conversion_matrix *matrix) { @@ -445,6 +465,7 @@ READ_LINE_16161616(XRGB16161616_read_line, px, 0xFFFF, = px[2], px[1], px[0]) READ_LINE_16161616(XBGR16161616_read_line, px, 0xFFFF, px[0], px[1], px[2]) =20 READ_LINE(RGB565_read_line, px, __le16, argb_u16_from_RGB565, px) +READ_LINE(BGR565_read_line, px, __le16, argb_u16_from_BGR565, px) =20 READ_LINE(R8_read_line, px, u8, argb_u16_from_gray8, *px) =20 @@ -666,6 +687,8 @@ pixel_read_line_t get_pixel_read_line_function(u32 form= at) return &XBGR16161616_read_line; case DRM_FORMAT_RGB565: return &RGB565_read_line; + case DRM_FORMAT_BGR565: + return &BGR565_read_line; case DRM_FORMAT_NV12: case DRM_FORMAT_NV16: case DRM_FORMAT_NV24: diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_= plane.c index 1e971c7760d9..a243a706459f 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -26,6 +26,7 @@ static const u32 vkms_formats[] =3D { DRM_FORMAT_ARGB16161616, DRM_FORMAT_ABGR16161616, DRM_FORMAT_RGB565, + DRM_FORMAT_BGR565, DRM_FORMAT_NV12, DRM_FORMAT_NV16, DRM_FORMAT_NV24, --=20 2.44.2