From patchwork Mon Aug 12 12:24:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jocelyn Falempe X-Patchwork-Id: 13760508 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8BACEC3DA7F for ; Mon, 12 Aug 2024 12:32:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0DCDC10E1E6; Mon, 12 Aug 2024 12:32:35 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="TjVFykCt"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1387610E1E6 for ; Mon, 12 Aug 2024 12:32:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1723465953; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gZdtDxgJ0Hr/56JCLbmbSPd//DgUSKY4MCutHFvMpfk=; b=TjVFykCtyi07zK0Yt74MRWlL8FmDqpDkFJoj8MlLFao8QcK234EwW3EynsDV27T/9lX+UU A93UtIqPS9/C0eD5LUA6Aghn+bzkNYoFKD8HJXCaS4Ni2+HlgLbpSPam3IDdZ91nrcEHJn 4L7yTtmNlRSG2YGMGU2iNmRQGjP5BbM= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-101-Jlvvg3FTOUehks6TSdrjIw-1; Mon, 12 Aug 2024 08:32:30 -0400 X-MC-Unique: Jlvvg3FTOUehks6TSdrjIw-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id D06AD190ECE4; Mon, 12 Aug 2024 12:32:27 +0000 (UTC) Received: from hydra.redhat.com (unknown [10.39.193.28]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 1154730001A1; Mon, 12 Aug 2024 12:32:21 +0000 (UTC) From: Jocelyn Falempe To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , "Bjorn Roy Baron" , Benno Lossin , Andreas Hindborg , Alice Ryhl , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, rust-for-linux@vger.kernel.org, Danilo Krummrich Cc: Jocelyn Falempe Subject: [PATCH v6 1/4] drm/panic: Add integer scaling to blit() Date: Mon, 12 Aug 2024 14:24:18 +0200 Message-ID: <20240812123147.81356-2-jfalempe@redhat.com> In-Reply-To: <20240812123147.81356-1-jfalempe@redhat.com> References: <20240812123147.81356-1-jfalempe@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add a parameter to the blit function, to upscale the image. This is necessary to draw a QR code, otherwise, the pixels are usually too small to be readable by most QR code reader. It can also be used later for drawing fonts on high DPI display. Signed-off-by: Jocelyn Falempe --- drivers/gpu/drm/drm_panic.c | 33 +++++++++++++++++++-------------- 1 file changed, 19 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c index eff4598e2fc73..0a047152f88b8 100644 --- a/drivers/gpu/drm/drm_panic.c +++ b/drivers/gpu/drm/drm_panic.c @@ -257,20 +257,20 @@ static bool drm_panic_is_pixel_fg(const u8 *sbuf8, unsigned int spitch, int x, i static void drm_panic_blit16(struct iosys_map *dmap, unsigned int dpitch, const u8 *sbuf8, unsigned int spitch, unsigned int height, unsigned int width, - u16 fg16) + unsigned int scale, u16 fg16) { unsigned int y, x; for (y = 0; y < height; y++) for (x = 0; x < width; x++) - if (drm_panic_is_pixel_fg(sbuf8, spitch, x, y)) + if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) iosys_map_wr(dmap, y * dpitch + x * sizeof(u16), u16, fg16); } static void drm_panic_blit24(struct iosys_map *dmap, unsigned int dpitch, const u8 *sbuf8, unsigned int spitch, unsigned int height, unsigned int width, - u32 fg32) + unsigned int scale, u32 fg32) { unsigned int y, x; @@ -278,7 +278,7 @@ static void drm_panic_blit24(struct iosys_map *dmap, unsigned int dpitch, for (x = 0; x < width; x++) { u32 off = y * dpitch + x * 3; - if (drm_panic_is_pixel_fg(sbuf8, spitch, x, y)) { + if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) { /* write blue-green-red to output in little endianness */ iosys_map_wr(dmap, off, u8, (fg32 & 0x000000FF) >> 0); iosys_map_wr(dmap, off + 1, u8, (fg32 & 0x0000FF00) >> 8); @@ -291,24 +291,25 @@ static void drm_panic_blit24(struct iosys_map *dmap, unsigned int dpitch, static void drm_panic_blit32(struct iosys_map *dmap, unsigned int dpitch, const u8 *sbuf8, unsigned int spitch, unsigned int height, unsigned int width, - u32 fg32) + unsigned int scale, u32 fg32) { unsigned int y, x; for (y = 0; y < height; y++) for (x = 0; x < width; x++) - if (drm_panic_is_pixel_fg(sbuf8, spitch, x, y)) + if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, fg32); } static void drm_panic_blit_pixel(struct drm_scanout_buffer *sb, struct drm_rect *clip, - const u8 *sbuf8, unsigned int spitch, u32 fg_color) + const u8 *sbuf8, unsigned int spitch, unsigned int scale, + u32 fg_color) { unsigned int y, x; for (y = 0; y < drm_rect_height(clip); y++) for (x = 0; x < drm_rect_width(clip); x++) - if (drm_panic_is_pixel_fg(sbuf8, spitch, x, y)) + if (drm_panic_is_pixel_fg(sbuf8, spitch, x / scale, y / scale)) sb->set_pixel(sb, clip->x1 + x, clip->y1 + y, fg_color); } @@ -318,18 +319,22 @@ static void drm_panic_blit_pixel(struct drm_scanout_buffer *sb, struct drm_rect * @clip: destination rectangle * @sbuf8: source buffer, in monochrome format, 8 pixels per byte. * @spitch: source pitch in bytes + * @scale: integer scale, source buffer is scale time smaller than destination + * rectangle * @fg_color: foreground color, in destination format * * This can be used to draw a font character, which is a monochrome image, to a * framebuffer in other supported format. */ static void drm_panic_blit(struct drm_scanout_buffer *sb, struct drm_rect *clip, - const u8 *sbuf8, unsigned int spitch, u32 fg_color) + const u8 *sbuf8, unsigned int spitch, + unsigned int scale, u32 fg_color) + { struct iosys_map map; if (sb->set_pixel) - return drm_panic_blit_pixel(sb, clip, sbuf8, spitch, fg_color); + return drm_panic_blit_pixel(sb, clip, sbuf8, spitch, scale, fg_color); map = sb->map[0]; iosys_map_incr(&map, clip->y1 * sb->pitch[0] + clip->x1 * sb->format->cpp[0]); @@ -337,15 +342,15 @@ static void drm_panic_blit(struct drm_scanout_buffer *sb, struct drm_rect *clip, switch (sb->format->cpp[0]) { case 2: drm_panic_blit16(&map, sb->pitch[0], sbuf8, spitch, - drm_rect_height(clip), drm_rect_width(clip), fg_color); + drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); break; case 3: drm_panic_blit24(&map, sb->pitch[0], sbuf8, spitch, - drm_rect_height(clip), drm_rect_width(clip), fg_color); + drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); break; case 4: drm_panic_blit32(&map, sb->pitch[0], sbuf8, spitch, - drm_rect_height(clip), drm_rect_width(clip), fg_color); + drm_rect_height(clip), drm_rect_width(clip), scale, fg_color); break; default: WARN_ONCE(1, "Can't blit with pixel width %d\n", sb->format->cpp[0]); @@ -485,7 +490,7 @@ static void draw_txt_rectangle(struct drm_scanout_buffer *sb, for (j = 0; j < line_len; j++) { src = get_char_bitmap(font, msg[i].txt[j], font_pitch); rec.x2 = rec.x1 + font->width; - drm_panic_blit(sb, &rec, src, font_pitch, color); + drm_panic_blit(sb, &rec, src, font_pitch, 1, color); rec.x1 += font->width; } }