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bh=T2R1cUmcFf+ifCuobfbCjYsZ1SxCHAqephrzxhWkXK8=; b=Hfesy4BsmKLsllxnIAp9RJCElsono+Ia/FbreQij8jZ28Nxvnp6jj3EcbW6ZZHgtK84jLg oAnR0R1RY5fmzyD+QyJj5eb2ACRE7UR5l+FP0Wn7sb7fvbQ7fzmS8vZ33VG/Uj4clSsQmy IduaAHBZykJculleiKFcwDg8yTimDpbLAWCQOoBkJGPn4rK4n7SCWVv448oT88TsxmY8dJ JoGtrBo+yKk3Q8EgUWNVL5rZlyV+my1vGSyY4pL+HVmqSgYpFfgor3NatIcoVyg1A4sOq3 enMB0ZZQYp8/j/3fHOBCGg5sG/B6XHbEPb92sw2MXXo58PxiAOWUz2a5qE29Ug== From: Louis Chauvet Date: Thu, 03 Jul 2025 09:57:03 +0200 Subject: [PATCH v7 7/8] drm/vkms: Create helper macro for YUV 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: <20250703-b4-new-color-formats-v7-7-15fd8fd2e15c@bootlin.com> References: <20250703-b4-new-color-formats-v7-0-15fd8fd2e15c@bootlin.com> In-Reply-To: <20250703-b4-new-color-formats-v7-0-15fd8fd2e15c@bootlin.com> To: Melissa Wen , =?utf-8?q?Ma=C3=ADra_Canal?= , Haneen Mohammed , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rodrigo Siqueira , Simona Vetter 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, nicolejadeyee@google.com, Louis Chauvet , =?utf-8?q?Ma=C3=ADra_Canal?= X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; 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a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdduleejfecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfitefpfffkpdcuggftfghnshhusghstghrihgsvgenuceurghilhhouhhtmecufedtudenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephfffufggtgfgkfhfjgfvvefosehtkeertdertdejnecuhfhrohhmpefnohhuihhsucevhhgruhhvvghtuceolhhouhhishdrtghhrghuvhgvthessghoohhtlhhinhdrtghomheqnecuggftrfgrthhtvghrnheptdeiveeiudehtddtgfethfduudefffduteekgeevueetudevheehieevtddttdeknecukfhppeeltddrkeelrdduieefrdduvdejnecuvehluhhsthgvrhfuihiivgepheenucfrrghrrghmpehinhgvthepledtrdekledrudeifedruddvjedphhgvlhhopegludelvddrudeikedrtddrvddtngdpmhgrihhlfhhrohhmpehlohhuihhsrdgthhgruhhvvghtsegsohhothhlihhnrdgtohhmpdhnsggprhgtphhtthhopedvtddprhgtphhtthhopehsihhmohhnrgesfhhffihllhdrtghhpdhrtghpthhtohephhgrmhhohhgrmhhmvggurdhsrgesghhmrghilhdrtghomhdprhgtphhtthhopehsvggrnhhprghulhesghhoohhglhgvrdgtohhmpdhrtghpthhtohepmhgvlhhishhsrgdrshhrfiesghhmrghilhdrtghomhdprhgtphhtthhopehnihgtohhlvghjrgguvgihvggvsehgohhoghhlvgdrtghomhdprhgtp hhtthhopegrihhrlhhivggusehgmhgrihhlrdgtohhmpdhrtghpthhtoheprghrthhhuhhrghhrihhllhhosehrihhsvghuphdrnhgvthdprhgtphhtthhopehthhhomhgrshdrphgvthgriiiiohhnihessghoohhtlhhinhdrtghomh X-GND-Sasl: louis.chauvet@bootlin.com The callback functions for line conversion are almost identical for semi-planar formats. The generic READ_LINE_YUV_SEMIPLANAR macro generate all the required boilerplate to process a line from a semi-planar format. Reviewed-by: Ma=C3=ADra Canal Signed-off-by: Louis Chauvet --- drivers/gpu/drm/vkms/vkms_formats.c | 75 ++++++++++++++++++++++++---------= ---- 1 file changed, 48 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkm= s_formats.c index cec27a72bc48..639b1c7ca43e 100644 --- a/drivers/gpu/drm/vkms/vkms_formats.c +++ b/drivers/gpu/drm/vkms/vkms_formats.c @@ -479,35 +479,56 @@ READ_LINE(R8_read_line, px, u8, argb_u16_from_gray8, = *px) * - Convert YUV and YVU with the same function (a column swap is needed w= hen setting up * plane->conversion_matrix) */ -static void semi_planar_yuv_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[]) -{ - u8 *y_plane; - u8 *uv_plane; - - packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, - &y_plane); - packed_pixels_addr_1x1(plane->frame_info, - x_start / plane->frame_info->fb->format->hsub, - y_start / plane->frame_info->fb->format->vsub, 1, - &uv_plane); - int step_y =3D get_block_step_bytes(plane->frame_info->fb, direction, 0); - int step_uv =3D get_block_step_bytes(plane->frame_info->fb, direction, 1); - int subsampling =3D get_subsampling(plane->frame_info->fb->format, direct= ion); - int subsampling_offset =3D get_subsampling_offset(direction, x_start, y_s= tart); - const struct conversion_matrix *conversion_matrix =3D &plane->conversion_= matrix; =20 - for (int i =3D 0; i < count; i++) { - *out_pixel =3D argb_u16_from_yuv161616(conversion_matrix, y_plane[0] * 2= 57, - uv_plane[0] * 257, uv_plane[1] * 257); - out_pixel +=3D 1; - y_plane +=3D step_y; - if ((i + subsampling_offset + 1) % subsampling =3D=3D 0) - uv_plane +=3D step_uv; - } +/** + * READ_LINE_YUV_SEMIPLANAR() - Generic generator for a read_line function= which can be used for yuv + * formats with two planes and block_w =3D=3D block_h =3D=3D 1. + * + * @function_name: Function name to generate + * @pixel_1_name: temporary pixel name for the first plane used in the @__= VA_ARGS__ parameters + * @pixel_2_name: temporary pixel name for the second plane used in the @_= _VA_ARGS__ parameters + * @pixel_1_type: Used to specify the type you want to cast the pixel poin= ter on the plane 1 + * @pixel_2_type: Used to specify the type you want to cast the pixel poin= ter on the plane 2 + * @callback: Callback to call for each pixels. This function should take + * (struct conversion_matrix*, @__VA_ARGS__) as parameter and r= eturn a pixel_argb_u16 + * __VA_ARGS__: Argument to pass inside the callback. You can use @pixel_1= _name and @pixel_2_name + * to access current pixel values + */ +#define READ_LINE_YUV_SEMIPLANAR(function_name, pixel_1_name, pixel_2_name= , pixel_1_type, \ + pixel_2_type, callback, ...) \ +static void function_name(const struct vkms_plane_state *plane, int x_star= t, \ + int y_start, enum pixel_read_direction direction, int count, \ + struct pixel_argb_u16 out_pixel[]) \ +{ \ + u8 *plane_1; \ + u8 *plane_2; \ + \ + packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, \ + &plane_1); \ + packed_pixels_addr_1x1(plane->frame_info, \ + x_start / plane->frame_info->fb->format->hsub, \ + y_start / plane->frame_info->fb->format->vsub, 1, \ + &plane_2); \ + int step_1 =3D get_block_step_bytes(plane->frame_info->fb, direction, 0);= \ + int step_2 =3D get_block_step_bytes(plane->frame_info->fb, direction, 1);= \ + int subsampling =3D get_subsampling(plane->frame_info->fb->format, direct= ion); \ + int subsampling_offset =3D get_subsampling_offset(direction, x_start, y_s= tart); \ + const struct conversion_matrix *conversion_matrix =3D &plane->conversion_= matrix; \ + \ + for (int i =3D 0; i < count; i++) { \ + pixel_1_type *(pixel_1_name) =3D (pixel_1_type *)plane_1; \ + pixel_2_type *(pixel_2_name) =3D (pixel_2_type *)plane_2; \ + *out_pixel =3D (callback)(conversion_matrix, __VA_ARGS__); \ + out_pixel +=3D 1; \ + plane_1 +=3D step_1; \ + if ((i + subsampling_offset + 1) % subsampling =3D=3D 0) \ + plane_2 +=3D step_2; \ + } \ } =20 +READ_LINE_YUV_SEMIPLANAR(YUV888_semiplanar_read_line, y, uv, u8, u8, argb_= u16_from_yuv161616, + y[0] * 257, uv[0] * 257, uv[1] * 257) + /* * This callback can be used for YUV format where each color component is * stored in a different plane (often called planar formats). It will @@ -703,7 +724,7 @@ pixel_read_line_t get_pixel_read_line_function(u32 form= at) case DRM_FORMAT_NV21: case DRM_FORMAT_NV61: case DRM_FORMAT_NV42: - return &semi_planar_yuv_read_line; + return &YUV888_semiplanar_read_line; case DRM_FORMAT_YUV420: case DRM_FORMAT_YUV422: case DRM_FORMAT_YUV444: --=20 2.49.0