From patchwork Tue Aug 17 12:29:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441407 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1AFEEC4338F for ; Tue, 17 Aug 2021 12:29:53 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id B4CA860F41 for ; Tue, 17 Aug 2021 12:29:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B4CA860F41 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=tronnes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 34FC76E0D2; Tue, 17 Aug 2021 12:29:46 +0000 (UTC) Received: from asav21.altibox.net (asav21.altibox.net [109.247.116.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id B635D6E0D2 for ; Tue, 17 Aug 2021 12:29:44 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id E208680044; Tue, 17 Aug 2021 14:29:40 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= Subject: [PATCH 1/7] drm/fourcc: Add R8 to drm_format_info Date: Tue, 17 Aug 2021 14:29:11 +0200 Message-Id: <20210817122917.49929-2-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=BovG-DV1gW-IbL17DIEA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 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 an entry in drm_format_info for the existing format DRM_FORMAT_R8. Signed-off-by: Noralf Trønnes Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_fourcc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index eda832f9200d..783844bfecc1 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -133,6 +133,7 @@ const struct drm_format_info *__drm_format_info(u32 format) { static const struct drm_format_info formats[] = { { .format = DRM_FORMAT_C8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 }, + { .format = DRM_FORMAT_R8, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 }, { .format = DRM_FORMAT_RGB332, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 }, { .format = DRM_FORMAT_BGR233, .depth = 8, .num_planes = 1, .cpp = { 1, 0, 0 }, .hsub = 1, .vsub = 1 }, { .format = DRM_FORMAT_XRGB4444, .depth = 0, .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 1, .vsub = 1 }, From patchwork Tue Aug 17 12:29:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441411 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06489C4338F for ; Tue, 17 Aug 2021 12:29:59 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 96F2860F38 for ; Tue, 17 Aug 2021 12:29:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 96F2860F38 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=tronnes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 19AF36E0FB; Tue, 17 Aug 2021 12:29:47 +0000 (UTC) Received: from asav21.altibox.net (asav21.altibox.net [109.247.116.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id 25F4A6E0D2 for ; Tue, 17 Aug 2021 12:29:45 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id 113D780045; Tue, 17 Aug 2021 14:29:43 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= , Thomas Zimmermann Subject: [PATCH 2/7] drm/format-helper: Add drm_fb_xrgb8888_to_rgb332() Date: Tue, 17 Aug 2021 14:29:12 +0200 Message-Id: <20210817122917.49929-3-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=zqkKrupjHR22pmQUYOQA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 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 XRGB8888 emulation support for devices that can only do RGB332. Cc: Thomas Zimmermann Signed-off-by: Noralf Trønnes Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_format_helper.c | 47 +++++++++++++++++++++++++++++ include/drm/drm_format_helper.h | 2 ++ 2 files changed, 49 insertions(+) diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 5231104b1498..53b426da7467 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -135,6 +135,53 @@ void drm_fb_swab(void *dst, void *src, struct drm_framebuffer *fb, } EXPORT_SYMBOL(drm_fb_swab); +static void drm_fb_xrgb8888_to_rgb332_line(u8 *dbuf, u32 *sbuf, unsigned int pixels) +{ + unsigned int x; + + for (x = 0; x < pixels; x++) + dbuf[x] = ((sbuf[x] & 0x00e00000) >> 16) | + ((sbuf[x] & 0x0000e000) >> 11) | + ((sbuf[x] & 0x000000c0) >> 6); +} + +/** + * drm_fb_xrgb8888_to_rgb332 - Convert XRGB8888 to RGB332 clip buffer + * @dst: RGB332 destination buffer + * @src: XRGB8888 source buffer + * @fb: DRM framebuffer + * @clip: Clip rectangle area to copy + * + * Drivers can use this function for RGB332 devices that don't natively support XRGB8888. + * + * This function does not apply clipping on dst, i.e. the destination is a small buffer + * containing the clip rect only. + */ +void drm_fb_xrgb8888_to_rgb332(void *dst, void *src, struct drm_framebuffer *fb, + struct drm_rect *clip) +{ + size_t width = drm_rect_width(clip); + size_t src_len = width * sizeof(u32); + unsigned int y; + void *sbuf; + + /* Use a buffer to speed up access on buffers with uncached read mapping (i.e. WC) */ + sbuf = kmalloc(src_len, GFP_KERNEL); + if (!sbuf) + return; + + src += clip_offset(clip, fb->pitches[0], sizeof(u32)); + for (y = 0; y < drm_rect_height(clip); y++) { + memcpy(sbuf, src, src_len); + drm_fb_xrgb8888_to_rgb332_line(dst, sbuf, width); + src += fb->pitches[0]; + dst += width; + } + + kfree(sbuf); +} +EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb332); + static void drm_fb_xrgb8888_to_rgb565_line(u16 *dbuf, u32 *sbuf, unsigned int pixels, bool swab) diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 4e0258a61311..d0809aff5cf8 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -16,6 +16,8 @@ void drm_fb_memcpy_dstclip(void __iomem *dst, unsigned int dst_pitch, void *vadd struct drm_rect *clip); void drm_fb_swab(void *dst, void *src, struct drm_framebuffer *fb, struct drm_rect *clip, bool cached); +void drm_fb_xrgb8888_to_rgb332(void *dst, void *vaddr, struct drm_framebuffer *fb, + struct drm_rect *clip); void drm_fb_xrgb8888_to_rgb565(void *dst, void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip, bool swab); From patchwork Tue Aug 17 12:29:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441415 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 591D2C4338F for ; Tue, 17 Aug 2021 12:30:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1C0B260F38 for ; Tue, 17 Aug 2021 12:30:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1C0B260F38 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=tronnes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0788F6E183; Tue, 17 Aug 2021 12:29:54 +0000 (UTC) Received: from asav21.altibox.net (asav21.altibox.net [109.247.116.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4E1216E0FB for ; Tue, 17 Aug 2021 12:29:45 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id 7DBCE80046; Tue, 17 Aug 2021 14:29:43 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= , Thomas Zimmermann Subject: [PATCH 3/7] drm/format-helper: Add drm_fb_xrgb8888_to_rgb888() Date: Tue, 17 Aug 2021 14:29:13 +0200 Message-Id: <20210817122917.49929-4-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=tPL1tCCEqSU9nWG0KxwA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 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 XRGB8888 emulation support for devices that can only do RGB888. Cc: Thomas Zimmermann Signed-off-by: Noralf Trønnes Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_format_helper.c | 38 +++++++++++++++++++++++++++++ include/drm/drm_format_helper.h | 2 ++ 2 files changed, 40 insertions(+) diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 53b426da7467..c42d50315123 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -297,6 +297,44 @@ static void drm_fb_xrgb8888_to_rgb888_line(u8 *dbuf, u32 *sbuf, } } +/** + * drm_fb_xrgb8888_to_rgb888 - Convert XRGB8888 to RGB888 clip buffer + * @dst: RGB888 destination buffer + * @src: XRGB8888 source buffer + * @fb: DRM framebuffer + * @clip: Clip rectangle area to copy + * + * Drivers can use this function for RGB888 devices that don't natively + * support XRGB8888. + * + * This function does not apply clipping on dst, i.e. the destination + * is a small buffer containing the clip rect only. + */ +void drm_fb_xrgb8888_to_rgb888(void *dst, void *src, struct drm_framebuffer *fb, + struct drm_rect *clip) +{ + size_t width = drm_rect_width(clip); + size_t src_len = width * sizeof(u32); + unsigned int y; + void *sbuf; + + /* Use a buffer to speed up access on buffers with uncached read mapping (i.e. WC) */ + sbuf = kmalloc(src_len, GFP_KERNEL); + if (!sbuf) + return; + + src += clip_offset(clip, fb->pitches[0], sizeof(u32)); + for (y = 0; y < drm_rect_height(clip); y++) { + memcpy(sbuf, src, src_len); + drm_fb_xrgb8888_to_rgb888_line(dst, sbuf, width); + src += fb->pitches[0]; + dst += width * 3; + } + + kfree(sbuf); +} +EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb888); + /** * drm_fb_xrgb8888_to_rgb888_dstclip - Convert XRGB8888 to RGB888 clip buffer * @dst: RGB565 destination buffer (iomem) diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index d0809aff5cf8..e86925cf07b9 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -24,6 +24,8 @@ void drm_fb_xrgb8888_to_rgb565(void *dst, void *vaddr, void drm_fb_xrgb8888_to_rgb565_dstclip(void __iomem *dst, unsigned int dst_pitch, void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip, bool swab); +void drm_fb_xrgb8888_to_rgb888(void *dst, void *src, struct drm_framebuffer *fb, + struct drm_rect *clip); void drm_fb_xrgb8888_to_rgb888_dstclip(void __iomem *dst, unsigned int dst_pitch, void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip); From patchwork Tue Aug 17 12:29:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441417 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 162C8C432BE for ; Tue, 17 Aug 2021 12:30:05 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id D8E166023F for ; Tue, 17 Aug 2021 12:30:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org D8E166023F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=tronnes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 383286E185; Tue, 17 Aug 2021 12:29:54 +0000 (UTC) Received: from asav21.altibox.net (asav21.altibox.net [109.247.116.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id 755BF6E17C for ; Tue, 17 Aug 2021 12:29:45 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id A3ABB80047; Tue, 17 Aug 2021 14:29:43 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= Subject: [PATCH 4/7] drm/gud: Add GUD_PIXEL_FORMAT_R8 Date: Tue, 17 Aug 2021 14:29:14 +0200 Message-Id: <20210817122917.49929-5-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=8akw2Lq4Ih2G6NqqFAUA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 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 support for 8-bit greyscale format. Signed-off-by: Noralf Trønnes --- drivers/gpu/drm/gud/gud_drv.c | 2 ++ drivers/gpu/drm/gud/gud_internal.h | 4 ++++ drivers/gpu/drm/gud/gud_pipe.c | 2 ++ include/drm/gud.h | 4 ++-- 4 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c index eb4e08846da4..a8d76c76e868 100644 --- a/drivers/gpu/drm/gud/gud_drv.c +++ b/drivers/gpu/drm/gud/gud_drv.c @@ -523,6 +523,8 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) switch (format) { case GUD_DRM_FORMAT_R1: fallthrough; + case DRM_FORMAT_R8: + fallthrough; case GUD_DRM_FORMAT_XRGB1111: if (!xrgb8888_emulation_format) xrgb8888_emulation_format = info; diff --git a/drivers/gpu/drm/gud/gud_internal.h b/drivers/gpu/drm/gud/gud_internal.h index 2a388e27d5d7..8499e713dbbc 100644 --- a/drivers/gpu/drm/gud/gud_internal.h +++ b/drivers/gpu/drm/gud/gud_internal.h @@ -80,6 +80,8 @@ static inline u8 gud_from_fourcc(u32 fourcc) switch (fourcc) { case GUD_DRM_FORMAT_R1: return GUD_PIXEL_FORMAT_R1; + case DRM_FORMAT_R8: + return GUD_PIXEL_FORMAT_R8; case GUD_DRM_FORMAT_XRGB1111: return GUD_PIXEL_FORMAT_XRGB1111; case DRM_FORMAT_RGB565: @@ -98,6 +100,8 @@ static inline u32 gud_to_fourcc(u8 format) switch (format) { case GUD_PIXEL_FORMAT_R1: return GUD_DRM_FORMAT_R1; + case GUD_PIXEL_FORMAT_R8: + return DRM_FORMAT_R8; case GUD_PIXEL_FORMAT_XRGB1111: return GUD_DRM_FORMAT_XRGB1111; case GUD_PIXEL_FORMAT_RGB565: diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c index b9b0e435ea0f..be4f95b2d59c 100644 --- a/drivers/gpu/drm/gud/gud_pipe.c +++ b/drivers/gpu/drm/gud/gud_pipe.c @@ -189,6 +189,8 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb, ret = -ENOMEM; goto end_cpu_access; } + } else if (format->format == DRM_FORMAT_R8) { + drm_fb_xrgb8888_to_gray8(buf, vaddr, fb, rect); } else if (format->format == DRM_FORMAT_RGB565) { drm_fb_xrgb8888_to_rgb565(buf, vaddr, fb, rect, gud_is_big_endian()); } else { diff --git a/include/drm/gud.h b/include/drm/gud.h index 0b46b54fe56e..1dc781009e62 100644 --- a/include/drm/gud.h +++ b/include/drm/gud.h @@ -246,8 +246,8 @@ struct gud_state_req { /* Get supported pixel formats as a byte array of GUD_PIXEL_FORMAT_* */ #define GUD_REQ_GET_FORMATS 0x40 #define GUD_FORMATS_MAX_NUM 32 - /* R1 is a 1-bit monochrome transfer format presented to userspace as XRGB8888 */ - #define GUD_PIXEL_FORMAT_R1 0x01 + #define GUD_PIXEL_FORMAT_R1 0x01 /* 1-bit monochrome */ + #define GUD_PIXEL_FORMAT_R8 0x08 /* 8-bit greyscale */ #define GUD_PIXEL_FORMAT_XRGB1111 0x20 #define GUD_PIXEL_FORMAT_RGB565 0x40 #define GUD_PIXEL_FORMAT_XRGB8888 0x80 From patchwork Tue Aug 17 12:29:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441409 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E592C4338F for ; Tue, 17 Aug 2021 12:29:56 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 1A2CD6023F for ; Tue, 17 Aug 2021 12:29:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1A2CD6023F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=tronnes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A2B026E17C; Tue, 17 Aug 2021 12:29:46 +0000 (UTC) Received: from asav21.altibox.net (asav21.altibox.net [109.247.116.8]) by gabe.freedesktop.org (Postfix) with ESMTPS id 968596E17D for ; Tue, 17 Aug 2021 12:29:45 +0000 (UTC) Received: from localhost.localdomain (211.81-166-168.customer.lyse.net [81.166.168.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: noralf.tronnes@ebnett.no) by asav21.altibox.net (Postfix) with ESMTPSA id C5CA380048; Tue, 17 Aug 2021 14:29:43 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= Subject: [PATCH 5/7] drm/gud: Add GUD_PIXEL_FORMAT_RGB332 Date: Tue, 17 Aug 2021 14:29:15 +0200 Message-Id: <20210817122917.49929-6-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=DmnpHc4pua4SWowHEBAA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 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 support for the RGB332 pixel format. Signed-off-by: Noralf Trønnes --- drivers/gpu/drm/gud/gud_drv.c | 2 ++ drivers/gpu/drm/gud/gud_internal.h | 4 ++++ drivers/gpu/drm/gud/gud_pipe.c | 2 ++ include/drm/gud.h | 1 + 4 files changed, 9 insertions(+) diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c index a8d76c76e868..e571ad10a12b 100644 --- a/drivers/gpu/drm/gud/gud_drv.c +++ b/drivers/gpu/drm/gud/gud_drv.c @@ -526,6 +526,8 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) case DRM_FORMAT_R8: fallthrough; case GUD_DRM_FORMAT_XRGB1111: + fallthrough; + case DRM_FORMAT_RGB332: if (!xrgb8888_emulation_format) xrgb8888_emulation_format = info; break; diff --git a/drivers/gpu/drm/gud/gud_internal.h b/drivers/gpu/drm/gud/gud_internal.h index 8499e713dbbc..249e02d1f5ed 100644 --- a/drivers/gpu/drm/gud/gud_internal.h +++ b/drivers/gpu/drm/gud/gud_internal.h @@ -84,6 +84,8 @@ static inline u8 gud_from_fourcc(u32 fourcc) return GUD_PIXEL_FORMAT_R8; case GUD_DRM_FORMAT_XRGB1111: return GUD_PIXEL_FORMAT_XRGB1111; + case DRM_FORMAT_RGB332: + return GUD_PIXEL_FORMAT_RGB332; case DRM_FORMAT_RGB565: return GUD_PIXEL_FORMAT_RGB565; case DRM_FORMAT_XRGB8888: @@ -104,6 +106,8 @@ static inline u32 gud_to_fourcc(u8 format) return DRM_FORMAT_R8; case GUD_PIXEL_FORMAT_XRGB1111: return GUD_DRM_FORMAT_XRGB1111; + case GUD_PIXEL_FORMAT_RGB332: + return DRM_FORMAT_RGB332; case GUD_PIXEL_FORMAT_RGB565: return DRM_FORMAT_RGB565; case GUD_PIXEL_FORMAT_XRGB8888: diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c index be4f95b2d59c..868a0b8a1f3e 100644 --- a/drivers/gpu/drm/gud/gud_pipe.c +++ b/drivers/gpu/drm/gud/gud_pipe.c @@ -191,6 +191,8 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb, } } else if (format->format == DRM_FORMAT_R8) { drm_fb_xrgb8888_to_gray8(buf, vaddr, fb, rect); + } else if (format->format == DRM_FORMAT_RGB332) { + drm_fb_xrgb8888_to_rgb332(buf, vaddr, fb, rect); } else if (format->format == DRM_FORMAT_RGB565) { drm_fb_xrgb8888_to_rgb565(buf, vaddr, fb, rect, gud_is_big_endian()); } else { diff --git a/include/drm/gud.h b/include/drm/gud.h index 1dc781009e62..4118dce2fcec 100644 --- a/include/drm/gud.h +++ b/include/drm/gud.h @@ -249,6 +249,7 @@ struct gud_state_req { #define GUD_PIXEL_FORMAT_R1 0x01 /* 1-bit monochrome */ #define GUD_PIXEL_FORMAT_R8 0x08 /* 8-bit greyscale */ #define GUD_PIXEL_FORMAT_XRGB1111 0x20 + #define GUD_PIXEL_FORMAT_RGB332 0x30 #define GUD_PIXEL_FORMAT_RGB565 0x40 #define GUD_PIXEL_FORMAT_XRGB8888 0x80 #define GUD_PIXEL_FORMAT_ARGB8888 0x81 From patchwork Tue Aug 17 12:29:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441413 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 24111C4338F for ; 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Tue, 17 Aug 2021 14:29:43 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= Subject: [PATCH 6/7] drm/gud: Add GUD_PIXEL_FORMAT_RGB888 Date: Tue, 17 Aug 2021 14:29:16 +0200 Message-Id: <20210817122917.49929-7-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=SJz97ENfAAAA:8 a=uAXMNBUqk6NMOdUcLzQA:9 a=QEXdDO2ut3YA:10 a=vFet0B0WnEQeilDPIY6i:22 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 support for the RGB888 pixel format. Signed-off-by: Noralf Trønnes --- drivers/gpu/drm/gud/gud_drv.c | 2 ++ drivers/gpu/drm/gud/gud_internal.h | 4 ++++ drivers/gpu/drm/gud/gud_pipe.c | 2 ++ include/drm/gud.h | 1 + 4 files changed, 9 insertions(+) diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c index e571ad10a12b..3f9d4b9a1e3d 100644 --- a/drivers/gpu/drm/gud/gud_drv.c +++ b/drivers/gpu/drm/gud/gud_drv.c @@ -528,6 +528,8 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) case GUD_DRM_FORMAT_XRGB1111: fallthrough; case DRM_FORMAT_RGB332: + fallthrough; + case DRM_FORMAT_RGB888: if (!xrgb8888_emulation_format) xrgb8888_emulation_format = info; break; diff --git a/drivers/gpu/drm/gud/gud_internal.h b/drivers/gpu/drm/gud/gud_internal.h index 249e02d1f5ed..e351a1f1420d 100644 --- a/drivers/gpu/drm/gud/gud_internal.h +++ b/drivers/gpu/drm/gud/gud_internal.h @@ -88,6 +88,8 @@ static inline u8 gud_from_fourcc(u32 fourcc) return GUD_PIXEL_FORMAT_RGB332; case DRM_FORMAT_RGB565: return GUD_PIXEL_FORMAT_RGB565; + case DRM_FORMAT_RGB888: + return GUD_PIXEL_FORMAT_RGB888; case DRM_FORMAT_XRGB8888: return GUD_PIXEL_FORMAT_XRGB8888; case DRM_FORMAT_ARGB8888: @@ -110,6 +112,8 @@ static inline u32 gud_to_fourcc(u8 format) return DRM_FORMAT_RGB332; case GUD_PIXEL_FORMAT_RGB565: return DRM_FORMAT_RGB565; + case GUD_PIXEL_FORMAT_RGB888: + return DRM_FORMAT_RGB888; case GUD_PIXEL_FORMAT_XRGB8888: return DRM_FORMAT_XRGB8888; case GUD_PIXEL_FORMAT_ARGB8888: diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c index 868a0b8a1f3e..daf75c178c2b 100644 --- a/drivers/gpu/drm/gud/gud_pipe.c +++ b/drivers/gpu/drm/gud/gud_pipe.c @@ -195,6 +195,8 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb, drm_fb_xrgb8888_to_rgb332(buf, vaddr, fb, rect); } else if (format->format == DRM_FORMAT_RGB565) { drm_fb_xrgb8888_to_rgb565(buf, vaddr, fb, rect, gud_is_big_endian()); + } else if (format->format == DRM_FORMAT_RGB888) { + drm_fb_xrgb8888_to_rgb888(buf, vaddr, fb, rect); } else { len = gud_xrgb8888_to_color(buf, format, vaddr, fb, rect); } diff --git a/include/drm/gud.h b/include/drm/gud.h index 4118dce2fcec..c52a8ba4ae4e 100644 --- a/include/drm/gud.h +++ b/include/drm/gud.h @@ -251,6 +251,7 @@ struct gud_state_req { #define GUD_PIXEL_FORMAT_XRGB1111 0x20 #define GUD_PIXEL_FORMAT_RGB332 0x30 #define GUD_PIXEL_FORMAT_RGB565 0x40 + #define GUD_PIXEL_FORMAT_RGB888 0x50 #define GUD_PIXEL_FORMAT_XRGB8888 0x80 #define GUD_PIXEL_FORMAT_ARGB8888 0x81 From patchwork Tue Aug 17 12:29:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Noralf_Tr=C3=B8nnes?= X-Patchwork-Id: 12441419 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7109C4338F for ; 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Tue, 17 Aug 2021 14:29:44 +0200 (CEST) From: =?utf-8?q?Noralf_Tr=C3=B8nnes?= To: dri-devel@lists.freedesktop.org Cc: peter@stuge.se, linus.walleij@linaro.org, =?utf-8?q?Noralf_Tr=C3=B8nnes?= Subject: [PATCH 7/7] drm/gud: Add module parameter to control emulation: xrgb8888 Date: Tue, 17 Aug 2021 14:29:17 +0200 Message-Id: <20210817122917.49929-8-noralf@tronnes.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817122917.49929-1-noralf@tronnes.org> References: <20210817122917.49929-1-noralf@tronnes.org> MIME-Version: 1.0 X-CMAE-Score: 0 X-CMAE-Analysis: v=2.3 cv=Tc64SyYh c=1 sm=1 tr=0 a=OYZzhG0JTxDrWp/F2OJbnw==:117 a=OYZzhG0JTxDrWp/F2OJbnw==:17 a=IkcTkHD0fZMA:10 a=M51BFTxLslgA:10 a=aR16PxjQAAAA:8 a=SJz97ENfAAAA:8 a=DmnpHc4pua4SWowHEBAA:9 a=QEXdDO2ut3YA:10 a=zbFvvTOBjyH4ze5LlUjX:22 a=vFet0B0WnEQeilDPIY6i:22 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" For devices that don't support XRGB8888 give the user the ability to choose what's most important: Color depth or frames per second. Add an 'xrgb8888' module parameter to override the emulation format. Assume the user wants full control if xrgb8888 is set and don't set DRM_CAP_DUMB_PREFERRED_DEPTH if RGB565 is supported (AFAIK only X.org supports this). Signed-off-by: Noralf Trønnes --- drivers/gpu/drm/gud/gud_drv.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/gud/gud_drv.c b/drivers/gpu/drm/gud/gud_drv.c index 3f9d4b9a1e3d..60d27ee5ddbd 100644 --- a/drivers/gpu/drm/gud/gud_drv.c +++ b/drivers/gpu/drm/gud/gud_drv.c @@ -30,6 +30,10 @@ #include "gud_internal.h" +static int gud_xrgb8888; +module_param_named(xrgb8888, gud_xrgb8888, int, 0644); +MODULE_PARM_DESC(xrgb8888, "XRGB8888 emulation format: GUD_PIXEL_FORMAT_* value, 0=auto, -1=disable [default=auto]"); + /* Only used internally */ static const struct drm_format_info gud_drm_format_r1 = { .format = GUD_DRM_FORMAT_R1, @@ -530,12 +534,12 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) case DRM_FORMAT_RGB332: fallthrough; case DRM_FORMAT_RGB888: - if (!xrgb8888_emulation_format) + if (!gud_xrgb8888 && !xrgb8888_emulation_format) xrgb8888_emulation_format = info; break; case DRM_FORMAT_RGB565: rgb565_supported = true; - if (!xrgb8888_emulation_format) + if (!gud_xrgb8888 && !xrgb8888_emulation_format) xrgb8888_emulation_format = info; break; case DRM_FORMAT_XRGB8888: @@ -543,6 +547,9 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) break; } + if (gud_xrgb8888 == formats_dev[i]) + xrgb8888_emulation_format = info; + fmt_buf_size = drm_format_info_min_pitch(info, 0, drm->mode_config.max_width) * drm->mode_config.max_height; max_buffer_size = max(max_buffer_size, fmt_buf_size); @@ -559,7 +566,7 @@ static int gud_probe(struct usb_interface *intf, const struct usb_device_id *id) } /* Prefer speed over color depth */ - if (rgb565_supported) + if (!gud_xrgb8888 && rgb565_supported) drm->mode_config.preferred_depth = 16; if (!xrgb8888_supported && xrgb8888_emulation_format) {