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bh=HBceqnriX2pNnf/J/de0sHN1Yjm6AqD5B1qKy0hJKpA=; b=mtfEx+AWlTgtZYJAewjC2/MU9a 325ma9wmCvTP4adpo3kaJVWrF2cviKekHd6v0eYy4nB2WBjS+FrTcWKHXiymchFCyGcplWwGObcPe /2g0/sH0DK7ZLoAiiM23a0jijSDJ9dZgpDocaBEIfOuF915QJxfIlT8y6lvVyrJ8teJ4=; Received: from [87.16.13.60] (port=64127 helo=fedora.fritz.box) by esm19.siteground.biz with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98.1) (envelope-from ) id 1v8lJq-00000000E00-2SM1; Tue, 14 Oct 2025 20:08:26 +0000 From: Francesco Valla Date: Tue, 14 Oct 2025 22:08:12 +0200 Subject: [PATCH v2 1/3] drm/draw: add drm_draw_can_convert_from_xrgb8888 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: 7bit Message-Id: <20251014-drm_draw_conv_check-v2-1-05bef3eb06fb@valla.it> References: <20251014-drm_draw_conv_check-v2-0-05bef3eb06fb@valla.it> In-Reply-To: <20251014-drm_draw_conv_check-v2-0-05bef3eb06fb@valla.it> To: Jocelyn Falempe , Javier Martinez Canillas , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Francesco Valla X-Mailer: b4 0.14.2 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - esm19.siteground.biz X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - valla.it X-Source: X-Source-Args: X-Source-Dir: X-SGantispam-id: fea8dbdeaa4e9fc8afce9fff3a582ff6 AntiSpam-DLS: false AntiSpam-DLSP: AntiSpam-DLSRS: AntiSpam-TS: 1.0 CFBL-Address: feedback@antispam.mailspamprotection.com; report=arf CFBL-Feedback-ID: 1v8lJx-00000005Skw-1rsh-feedback@antispam.mailspamprotection.com Authentication-Results: outgoing.instance-europe-west4-rkph.prod.antispam.mailspamprotection.com; iprev=pass (214.173.214.35.bc.googleusercontent.com) smtp.remote-ip=35.214.173.214; auth=pass (LOGIN) smtp.auth=esm19.siteground.biz; dkim=pass header.d=valla.it header.s=default header.a=rsa-sha256; arc=none Add drm_draw_can_convert_from_xrgb8888() function that can be used to determine if a XRGB8888 color can be converted to the specified format. Signed-off-by: Francesco Valla --- drivers/gpu/drm/drm_draw.c | 29 +++++++++++++++++++++++++++++ drivers/gpu/drm/drm_draw_internal.h | 2 ++ 2 files changed, 31 insertions(+) diff --git a/drivers/gpu/drm/drm_draw.c b/drivers/gpu/drm/drm_draw.c index 9dc0408fbbeadbe8282a2d6b210e0bfb0672967f..ccdd6b16e73fc01d58f45759cf3824be7aac155b 100644 --- a/drivers/gpu/drm/drm_draw.c +++ b/drivers/gpu/drm/drm_draw.c @@ -15,6 +15,35 @@ #include "drm_draw_internal.h" #include "drm_format_internal.h" +/** + * drm_draw_can_convert_from_xrgb8888 - check if xrgb8888 can be converted to the desired format + * @format: format + * + * Returns: + * True if XRGB8888 can be converted to the specified format, false otherwise. + */ +bool drm_draw_can_convert_from_xrgb8888(u32 format) +{ + switch (format) { + case DRM_FORMAT_RGB565: + case DRM_FORMAT_RGBA5551: + case DRM_FORMAT_XRGB1555: + case DRM_FORMAT_ARGB1555: + case DRM_FORMAT_RGB888: + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_ABGR2101010: + return true; + default: + return false; + } +} +EXPORT_SYMBOL(drm_draw_can_convert_from_xrgb8888); + /** * drm_draw_color_from_xrgb8888 - convert one pixel from xrgb8888 to the desired format * @color: input color, in xrgb8888 format diff --git a/drivers/gpu/drm/drm_draw_internal.h b/drivers/gpu/drm/drm_draw_internal.h index f121ee7339dc11537f677c833f0ee94fe0e799cd..2ab4cb341df94fc4173dd6f5e7a512bdcfa5e55c 100644 --- a/drivers/gpu/drm/drm_draw_internal.h +++ b/drivers/gpu/drm/drm_draw_internal.h @@ -24,6 +24,8 @@ static inline const u8 *drm_draw_get_char_bitmap(const struct font_desc *font, return font->data + (c * font->height) * font_pitch; } +bool drm_draw_can_convert_from_xrgb8888(u32 format); + u32 drm_draw_color_from_xrgb8888(u32 color, u32 format); void drm_draw_blit16(struct iosys_map *dmap, unsigned int dpitch, -- 2.51.0