On 2023-10-10 12:27, Melissa Wen wrote: > On 09/08, Harry Wentland wrote: >> Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx> >> Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> >> Cc: Pekka Paalanen <pekka.paalanen@xxxxxxxxxxxxx> >> Cc: Simon Ser <contact@xxxxxxxxxxx> >> Cc: Harry Wentland <harry.wentland@xxxxxxx> >> Cc: Melissa Wen <mwen@xxxxxxxxxx> >> Cc: Jonas Ådahl <jadahl@xxxxxxxxxx> >> Cc: Sebastian Wick <sebastian.wick@xxxxxxxxxx> >> Cc: Shashank Sharma <shashank.sharma@xxxxxxx> >> Cc: Alexander Goins <agoins@xxxxxxxxxx> >> Cc: Joshua Ashton <joshua@xxxxxxxxx> >> Cc: Michel Dänzer <mdaenzer@xxxxxxxxxx> >> Cc: Aleix Pol <aleixpol@xxxxxxx> >> Cc: Xaver Hugl <xaver.hugl@xxxxxxxxx> >> Cc: Victoria Brekenfeld <victoria@xxxxxxxxxxxx> >> Cc: Daniel Vetter <daniel@xxxxxxxx> >> Cc: Uma Shankar <uma.shankar@xxxxxxxxx> >> Cc: Naseer Ahmed <quic_naseer@xxxxxxxxxxx> >> Cc: Christopher Braga <quic_cbraga@xxxxxxxxxxx> >> --- >> drivers/gpu/drm/vkms/Makefile | 3 +- >> drivers/gpu/drm/vkms/vkms_colorop.c | 108 +++++++++ >> drivers/gpu/drm/vkms/vkms_composer.c | 316 +++++++++++++++++++++++++++ >> drivers/gpu/drm/vkms/vkms_drv.h | 4 + >> drivers/gpu/drm/vkms/vkms_plane.c | 2 + >> 5 files changed, 432 insertions(+), 1 deletion(-) >> create mode 100644 drivers/gpu/drm/vkms/vkms_colorop.c >> >> diff --git a/drivers/gpu/drm/vkms/Makefile b/drivers/gpu/drm/vkms/Makefile >> index 1b28a6a32948..bcf508873622 100644 >> --- a/drivers/gpu/drm/vkms/Makefile >> +++ b/drivers/gpu/drm/vkms/Makefile >> @@ -6,6 +6,7 @@ vkms-y := \ >> vkms_formats.o \ >> vkms_crtc.o \ >> vkms_composer.o \ >> - vkms_writeback.o >> + vkms_writeback.o \ >> + vkms_colorop.o >> >> obj-$(CONFIG_DRM_VKMS) += vkms.o >> diff --git a/drivers/gpu/drm/vkms/vkms_colorop.c b/drivers/gpu/drm/vkms/vkms_colorop.c >> new file mode 100644 >> index 000000000000..b3da0705bca7 >> --- /dev/null >> +++ b/drivers/gpu/drm/vkms/vkms_colorop.c >> @@ -0,0 +1,108 @@ >> +/* >> + * Copyright (C) 2023 Advanced Micro Devices, Inc. All rights reserved. >> + * >> + * Permission is hereby granted, free of charge, to any person obtaining a >> + * copy of this software and associated documentation files (the "Software"), >> + * to deal in the Software without restriction, including without limitation >> + * the rights to use, copy, modify, merge, publish, distribute, sublicense, >> + * and/or sell copies of the Software, and to permit persons to whom the >> + * Software is furnished to do so, subject to the following conditions: >> + * >> + * The above copyright notice and this permission notice shall be included in >> + * all copies or substantial portions of the Software. >> + * >> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR >> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, >> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL >> + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR >> + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, >> + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR >> + * OTHER DEALINGS IN THE SOFTWARE. >> + * >> + * Authors: AMD >> + * >> + */ >> + >> +#include <linux/slab.h> >> +#include <drm/drm_colorop.h> >> +#include <drm/drm_print.h> >> +#include <drm/drm_property.h> >> +#include <drm/drm_plane.h> >> + >> +#define MAX_COLOR_PIPELINES 5 >> + >> +const int vkms_initialize_tf_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list) >> +{ >> + >> + struct drm_colorop *op, *prev_op; >> + struct drm_device *dev = plane->dev; >> + int ret; >> + >> + /* 1st op: 1d curve */ >> + op = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL); >> + if (!op) { >> + DRM_ERROR("KMS: Failed to allocate colorop\n"); >> + return -ENOMEM; >> + } >> + >> + ret = drm_colorop_init(dev, op, plane, DRM_COLOROP_1D_CURVE); >> + if (ret) >> + return ret; >> + >> + list->type = op->base.id; >> + list->name = kasprintf(GFP_KERNEL, "Color Pipeline %d", op->base.id); >> + >> + prev_op = op; >> + >> + /* 2nd op: 1d curve */ >> + op = kzalloc(sizeof(struct drm_colorop), GFP_KERNEL); >> + if (!op) { >> + DRM_ERROR("KMS: Failed to allocate colorop\n"); >> + return -ENOMEM; >> + } >> + >> + ret = drm_colorop_init(dev, op, plane, DRM_COLOROP_1D_CURVE); >> + if (ret) >> + return ret; >> + >> + drm_colorop_set_next_property(prev_op, op); >> + >> + return 0; >> +} >> + >> +int vkms_initialize_colorops(struct drm_plane *plane) >> +{ >> + struct drm_device *dev = plane->dev; >> + struct drm_property *prop; >> + struct drm_prop_enum_list pipelines[MAX_COLOR_PIPELINES]; >> + int len = 0; >> + int ret; >> + >> + /* Add "Bypass" (i.e. NULL) pipeline */ >> + pipelines[len].type = 0; >> + pipelines[len].name = "Bypass"; >> + len++; >> + >> + /* Add pipeline consisting of transfer functions */ >> + ret = vkms_initialize_tf_pipeline(plane, &(pipelines[len])); >> + if (ret) >> + return ret; >> + len++; >> + >> + /* Create COLOR_PIPELINE property and attach */ >> + prop = drm_property_create_enum(dev, DRM_MODE_PROP_ATOMIC, >> + "COLOR_PIPELINE", >> + pipelines, len); >> + if (!prop) >> + return -ENOMEM; >> + >> + plane->color_pipeline_property = prop; >> + >> + drm_object_attach_property(&plane->base, prop, 0); >> + >> + /* TODO do we even need this? */ >> + if (plane->state) >> + plane->state->color_pipeline = NULL; >> + >> + return 0; >> +} >> diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c >> index f6c311e8a87c..92ab9c62a554 100644 >> --- a/drivers/gpu/drm/vkms/vkms_composer.c >> +++ b/drivers/gpu/drm/vkms/vkms_composer.c >> @@ -12,6 +12,284 @@ >> >> #include "vkms_drv.h" >> >> +#define LUT_SIZE 256 >> + >> +struct drm_color_lut srgb_array[LUT_SIZE] = { >> + { 0x13, 0x13, 0x13, 0 }, >> + { 0x27, 0x27, 0x27, 0 }, >> + { 0x3b, 0x3b, 0x3b, 0 }, >> + { 0x4f, 0x4f, 0x4f, 0 }, >> + { 0x63, 0x63, 0x63, 0 }, >> + { 0x76, 0x76, 0x76, 0 }, >> + { 0x8a, 0x8a, 0x8a, 0 }, >> + { 0x9e, 0x9e, 0x9e, 0 }, >> + { 0xb2, 0xb2, 0xb2, 0 }, >> + { 0xc6, 0xc6, 0xc6, 0 }, >> + { 0xda, 0xda, 0xda, 0 }, >> + { 0xef, 0xef, 0xef, 0 }, >> + { 0x106, 0x106, 0x106, 0 }, >> + { 0x11e, 0x11e, 0x11e, 0 }, >> + { 0x137, 0x137, 0x137, 0 }, >> + { 0x151, 0x151, 0x151, 0 }, >> + { 0x16d, 0x16d, 0x16d, 0 }, >> + { 0x18a, 0x18a, 0x18a, 0 }, >> + { 0x1a8, 0x1a8, 0x1a8, 0 }, >> + { 0x1c7, 0x1c7, 0x1c7, 0 }, >> + { 0x1e8, 0x1e8, 0x1e8, 0 }, >> + { 0x20a, 0x20a, 0x20a, 0 }, >> + { 0x22e, 0x22e, 0x22e, 0 }, >> + { 0x253, 0x253, 0x253, 0 }, >> + { 0x279, 0x279, 0x279, 0 }, >> + { 0x2a0, 0x2a0, 0x2a0, 0 }, >> + { 0x2c9, 0x2c9, 0x2c9, 0 }, >> + { 0x2f4, 0x2f4, 0x2f4, 0 }, >> + { 0x320, 0x320, 0x320, 0 }, >> + { 0x34d, 0x34d, 0x34d, 0 }, >> + { 0x37c, 0x37c, 0x37c, 0 }, >> + { 0x3ac, 0x3ac, 0x3ac, 0 }, >> + { 0x3de, 0x3de, 0x3de, 0 }, >> + { 0x411, 0x411, 0x411, 0 }, >> + { 0x446, 0x446, 0x446, 0 }, >> + { 0x47c, 0x47c, 0x47c, 0 }, >> + { 0x4b4, 0x4b4, 0x4b4, 0 }, >> + { 0x4ed, 0x4ed, 0x4ed, 0 }, >> + { 0x528, 0x528, 0x528, 0 }, >> + { 0x564, 0x564, 0x564, 0 }, >> + { 0x5a3, 0x5a3, 0x5a3, 0 }, >> + { 0x5e2, 0x5e2, 0x5e2, 0 }, >> + { 0x624, 0x624, 0x624, 0 }, >> + { 0x666, 0x666, 0x666, 0 }, >> + { 0x6ab, 0x6ab, 0x6ab, 0 }, >> + { 0x6f1, 0x6f1, 0x6f1, 0 }, >> + { 0x739, 0x739, 0x739, 0 }, >> + { 0x782, 0x782, 0x782, 0 }, >> + { 0x7ce, 0x7ce, 0x7ce, 0 }, >> + { 0x81b, 0x81b, 0x81b, 0 }, >> + { 0x869, 0x869, 0x869, 0 }, >> + { 0x8b9, 0x8b9, 0x8b9, 0 }, >> + { 0x90b, 0x90b, 0x90b, 0 }, >> + { 0x95f, 0x95f, 0x95f, 0 }, >> + { 0x9b5, 0x9b5, 0x9b5, 0 }, >> + { 0xa0c, 0xa0c, 0xa0c, 0 }, >> + { 0xa65, 0xa65, 0xa65, 0 }, >> + { 0xabf, 0xabf, 0xabf, 0 }, >> + { 0xb1c, 0xb1c, 0xb1c, 0 }, >> + { 0xb7a, 0xb7a, 0xb7a, 0 }, >> + { 0xbda, 0xbda, 0xbda, 0 }, >> + { 0xc3c, 0xc3c, 0xc3c, 0 }, >> + { 0xca0, 0xca0, 0xca0, 0 }, >> + { 0xd06, 0xd06, 0xd06, 0 }, >> + { 0xd6d, 0xd6d, 0xd6d, 0 }, >> + { 0xdd6, 0xdd6, 0xdd6, 0 }, >> + { 0xe41, 0xe41, 0xe41, 0 }, >> + { 0xeae, 0xeae, 0xeae, 0 }, >> + { 0xf1d, 0xf1d, 0xf1d, 0 }, >> + { 0xf8e, 0xf8e, 0xf8e, 0 }, >> + { 0x1001, 0x1001, 0x1001, 0 }, >> + { 0x1075, 0x1075, 0x1075, 0 }, >> + { 0x10ec, 0x10ec, 0x10ec, 0 }, >> + { 0x1164, 0x1164, 0x1164, 0 }, >> + { 0x11de, 0x11de, 0x11de, 0 }, >> + { 0x125a, 0x125a, 0x125a, 0 }, >> + { 0x12d9, 0x12d9, 0x12d9, 0 }, >> + { 0x1359, 0x1359, 0x1359, 0 }, >> + { 0x13db, 0x13db, 0x13db, 0 }, >> + { 0x145f, 0x145f, 0x145f, 0 }, >> + { 0x14e5, 0x14e5, 0x14e5, 0 }, >> + { 0x156d, 0x156d, 0x156d, 0 }, >> + { 0x15f7, 0x15f7, 0x15f7, 0 }, >> + { 0x1683, 0x1683, 0x1683, 0 }, >> + { 0x1711, 0x1711, 0x1711, 0 }, >> + { 0x17a1, 0x17a1, 0x17a1, 0 }, >> + { 0x1833, 0x1833, 0x1833, 0 }, >> + { 0x18c7, 0x18c7, 0x18c7, 0 }, >> + { 0x195d, 0x195d, 0x195d, 0 }, >> + { 0x19f6, 0x19f6, 0x19f6, 0 }, >> + { 0x1a90, 0x1a90, 0x1a90, 0 }, >> + { 0x1b2c, 0x1b2c, 0x1b2c, 0 }, >> + { 0x1bcb, 0x1bcb, 0x1bcb, 0 }, >> + { 0x1c6b, 0x1c6b, 0x1c6b, 0 }, >> + { 0x1d0e, 0x1d0e, 0x1d0e, 0 }, >> + { 0x1db3, 0x1db3, 0x1db3, 0 }, >> + { 0x1e59, 0x1e59, 0x1e59, 0 }, >> + { 0x1f02, 0x1f02, 0x1f02, 0 }, >> + { 0x1fad, 0x1fad, 0x1fad, 0 }, >> + { 0x205b, 0x205b, 0x205b, 0 }, >> + { 0x210a, 0x210a, 0x210a, 0 }, >> + { 0x21bb, 0x21bb, 0x21bb, 0 }, >> + { 0x226f, 0x226f, 0x226f, 0 }, >> + { 0x2325, 0x2325, 0x2325, 0 }, >> + { 0x23dd, 0x23dd, 0x23dd, 0 }, >> + { 0x2497, 0x2497, 0x2497, 0 }, >> + { 0x2553, 0x2553, 0x2553, 0 }, >> + { 0x2612, 0x2612, 0x2612, 0 }, >> + { 0x26d2, 0x26d2, 0x26d2, 0 }, >> + { 0x2795, 0x2795, 0x2795, 0 }, >> + { 0x285a, 0x285a, 0x285a, 0 }, >> + { 0x2922, 0x2922, 0x2922, 0 }, >> + { 0x29eb, 0x29eb, 0x29eb, 0 }, >> + { 0x2ab7, 0x2ab7, 0x2ab7, 0 }, >> + { 0x2b85, 0x2b85, 0x2b85, 0 }, >> + { 0x2c56, 0x2c56, 0x2c56, 0 }, >> + { 0x2d28, 0x2d28, 0x2d28, 0 }, >> + { 0x2dfd, 0x2dfd, 0x2dfd, 0 }, >> + { 0x2ed4, 0x2ed4, 0x2ed4, 0 }, >> + { 0x2fad, 0x2fad, 0x2fad, 0 }, >> + { 0x3089, 0x3089, 0x3089, 0 }, >> + { 0x3167, 0x3167, 0x3167, 0 }, >> + { 0x3247, 0x3247, 0x3247, 0 }, >> + { 0x332a, 0x332a, 0x332a, 0 }, >> + { 0x340e, 0x340e, 0x340e, 0 }, >> + { 0x34f5, 0x34f5, 0x34f5, 0 }, >> + { 0x35df, 0x35df, 0x35df, 0 }, >> + { 0x36cb, 0x36cb, 0x36cb, 0 }, >> + { 0x37b9, 0x37b9, 0x37b9, 0 }, >> + { 0x38a9, 0x38a9, 0x38a9, 0 }, >> + { 0x399c, 0x399c, 0x399c, 0 }, >> + { 0x3a91, 0x3a91, 0x3a91, 0 }, >> + { 0x3b89, 0x3b89, 0x3b89, 0 }, >> + { 0x3c83, 0x3c83, 0x3c83, 0 }, >> + { 0x3d7f, 0x3d7f, 0x3d7f, 0 }, >> + { 0x3e7e, 0x3e7e, 0x3e7e, 0 }, >> + { 0x3f7f, 0x3f7f, 0x3f7f, 0 }, >> + { 0x4082, 0x4082, 0x4082, 0 }, >> + { 0x4188, 0x4188, 0x4188, 0 }, >> + { 0x4290, 0x4290, 0x4290, 0 }, >> + { 0x439b, 0x439b, 0x439b, 0 }, >> + { 0x44a8, 0x44a8, 0x44a8, 0 }, >> + { 0x45b7, 0x45b7, 0x45b7, 0 }, >> + { 0x46c9, 0x46c9, 0x46c9, 0 }, >> + { 0x47dd, 0x47dd, 0x47dd, 0 }, >> + { 0x48f4, 0x48f4, 0x48f4, 0 }, >> + { 0x4a0d, 0x4a0d, 0x4a0d, 0 }, >> + { 0x4b29, 0x4b29, 0x4b29, 0 }, >> + { 0x4c47, 0x4c47, 0x4c47, 0 }, >> + { 0x4d68, 0x4d68, 0x4d68, 0 }, >> + { 0x4e8b, 0x4e8b, 0x4e8b, 0 }, >> + { 0x4fb1, 0x4fb1, 0x4fb1, 0 }, >> + { 0x50d9, 0x50d9, 0x50d9, 0 }, >> + { 0x5203, 0x5203, 0x5203, 0 }, >> + { 0x5330, 0x5330, 0x5330, 0 }, >> + { 0x5460, 0x5460, 0x5460, 0 }, >> + { 0x5592, 0x5592, 0x5592, 0 }, >> + { 0x56c6, 0x56c6, 0x56c6, 0 }, >> + { 0x57fd, 0x57fd, 0x57fd, 0 }, >> + { 0x5937, 0x5937, 0x5937, 0 }, >> + { 0x5a73, 0x5a73, 0x5a73, 0 }, >> + { 0x5bb2, 0x5bb2, 0x5bb2, 0 }, >> + { 0x5cf3, 0x5cf3, 0x5cf3, 0 }, >> + { 0x5e37, 0x5e37, 0x5e37, 0 }, >> + { 0x5f7d, 0x5f7d, 0x5f7d, 0 }, >> + { 0x60c6, 0x60c6, 0x60c6, 0 }, >> + { 0x6212, 0x6212, 0x6212, 0 }, >> + { 0x6360, 0x6360, 0x6360, 0 }, >> + { 0x64b0, 0x64b0, 0x64b0, 0 }, >> + { 0x6604, 0x6604, 0x6604, 0 }, >> + { 0x6759, 0x6759, 0x6759, 0 }, >> + { 0x68b2, 0x68b2, 0x68b2, 0 }, >> + { 0x6a0d, 0x6a0d, 0x6a0d, 0 }, >> + { 0x6b6a, 0x6b6a, 0x6b6a, 0 }, >> + { 0x6ccb, 0x6ccb, 0x6ccb, 0 }, >> + { 0x6e2d, 0x6e2d, 0x6e2d, 0 }, >> + { 0x6f93, 0x6f93, 0x6f93, 0 }, >> + { 0x70fb, 0x70fb, 0x70fb, 0 }, >> + { 0x7266, 0x7266, 0x7266, 0 }, >> + { 0x73d3, 0x73d3, 0x73d3, 0 }, >> + { 0x7543, 0x7543, 0x7543, 0 }, >> + { 0x76b6, 0x76b6, 0x76b6, 0 }, >> + { 0x782b, 0x782b, 0x782b, 0 }, >> + { 0x79a3, 0x79a3, 0x79a3, 0 }, >> + { 0x7b1d, 0x7b1d, 0x7b1d, 0 }, >> + { 0x7c9b, 0x7c9b, 0x7c9b, 0 }, >> + { 0x7e1b, 0x7e1b, 0x7e1b, 0 }, >> + { 0x7f9d, 0x7f9d, 0x7f9d, 0 }, >> + { 0x8123, 0x8123, 0x8123, 0 }, >> + { 0x82ab, 0x82ab, 0x82ab, 0 }, >> + { 0x8436, 0x8436, 0x8436, 0 }, >> + { 0x85c3, 0x85c3, 0x85c3, 0 }, >> + { 0x8753, 0x8753, 0x8753, 0 }, >> + { 0x88e6, 0x88e6, 0x88e6, 0 }, >> + { 0x8a7c, 0x8a7c, 0x8a7c, 0 }, >> + { 0x8c14, 0x8c14, 0x8c14, 0 }, >> + { 0x8daf, 0x8daf, 0x8daf, 0 }, >> + { 0x8f4d, 0x8f4d, 0x8f4d, 0 }, >> + { 0x90ed, 0x90ed, 0x90ed, 0 }, >> + { 0x9290, 0x9290, 0x9290, 0 }, >> + { 0x9436, 0x9436, 0x9436, 0 }, >> + { 0x95df, 0x95df, 0x95df, 0 }, >> + { 0x978b, 0x978b, 0x978b, 0 }, >> + { 0x9939, 0x9939, 0x9939, 0 }, >> + { 0x9aea, 0x9aea, 0x9aea, 0 }, >> + { 0x9c9e, 0x9c9e, 0x9c9e, 0 }, >> + { 0x9e55, 0x9e55, 0x9e55, 0 }, >> + { 0xa00e, 0xa00e, 0xa00e, 0 }, >> + { 0xa1ca, 0xa1ca, 0xa1ca, 0 }, >> + { 0xa389, 0xa389, 0xa389, 0 }, >> + { 0xa54b, 0xa54b, 0xa54b, 0 }, >> + { 0xa710, 0xa710, 0xa710, 0 }, >> + { 0xa8d7, 0xa8d7, 0xa8d7, 0 }, >> + { 0xaaa1, 0xaaa1, 0xaaa1, 0 }, >> + { 0xac6e, 0xac6e, 0xac6e, 0 }, >> + { 0xae3e, 0xae3e, 0xae3e, 0 }, >> + { 0xb011, 0xb011, 0xb011, 0 }, >> + { 0xb1e7, 0xb1e7, 0xb1e7, 0 }, >> + { 0xb3bf, 0xb3bf, 0xb3bf, 0 }, >> + { 0xb59a, 0xb59a, 0xb59a, 0 }, >> + { 0xb778, 0xb778, 0xb778, 0 }, >> + { 0xb959, 0xb959, 0xb959, 0 }, >> + { 0xbb3d, 0xbb3d, 0xbb3d, 0 }, >> + { 0xbd24, 0xbd24, 0xbd24, 0 }, >> + { 0xbf0d, 0xbf0d, 0xbf0d, 0 }, >> + { 0xc0fa, 0xc0fa, 0xc0fa, 0 }, >> + { 0xc2e9, 0xc2e9, 0xc2e9, 0 }, >> + { 0xc4db, 0xc4db, 0xc4db, 0 }, >> + { 0xc6d0, 0xc6d0, 0xc6d0, 0 }, >> + { 0xc8c8, 0xc8c8, 0xc8c8, 0 }, >> + { 0xcac3, 0xcac3, 0xcac3, 0 }, >> + { 0xccc1, 0xccc1, 0xccc1, 0 }, >> + { 0xcec1, 0xcec1, 0xcec1, 0 }, >> + { 0xd0c5, 0xd0c5, 0xd0c5, 0 }, >> + { 0xd2cc, 0xd2cc, 0xd2cc, 0 }, >> + { 0xd4d5, 0xd4d5, 0xd4d5, 0 }, >> + { 0xd6e1, 0xd6e1, 0xd6e1, 0 }, >> + { 0xd8f1, 0xd8f1, 0xd8f1, 0 }, >> + { 0xdb03, 0xdb03, 0xdb03, 0 }, >> + { 0xdd18, 0xdd18, 0xdd18, 0 }, >> + { 0xdf30, 0xdf30, 0xdf30, 0 }, >> + { 0xe14b, 0xe14b, 0xe14b, 0 }, >> + { 0xe369, 0xe369, 0xe369, 0 }, >> + { 0xe58a, 0xe58a, 0xe58a, 0 }, >> + { 0xe7ae, 0xe7ae, 0xe7ae, 0 }, >> + { 0xe9d5, 0xe9d5, 0xe9d5, 0 }, >> + { 0xebff, 0xebff, 0xebff, 0 }, >> + { 0xee2c, 0xee2c, 0xee2c, 0 }, >> + { 0xf05c, 0xf05c, 0xf05c, 0 }, >> + { 0xf28f, 0xf28f, 0xf28f, 0 }, >> + { 0xf4c4, 0xf4c4, 0xf4c4, 0 }, >> + { 0xf6fd, 0xf6fd, 0xf6fd, 0 }, >> + { 0xf939, 0xf939, 0xf939, 0 }, >> + { 0xfb78, 0xfb78, 0xfb78, 0 }, >> + { 0xfdba, 0xfdba, 0xfdba, 0 }, >> + { 0xffff, 0xffff, 0xffff, 0 } >> +}; >> + >> +#if 0 >> +struct vkms_color_lut srgb_eotf = { >> + .base = NULL, >> + . lut_length = LUT_SIZE, >> + .channel_value2index_ratio = drm_int2fixp(0xffff) >> + // .channel_value2index_ratio = 0 //drm_fixp_div(drm_int2fixp(0xffff), drm_int2fixp(LUT_SIZE)) >> +}; >> + >> +#else >> +const struct vkms_color_lut srgb_eotf = { >> + .base = srgb_array, >> + .lut_length = 256, >> + .channel_value2index_ratio = 16711935ll >> +}; >> + >> +#endif >> + >> static u16 pre_mul_blend_channel(u16 src, u16 dst, u16 alpha) >> { >> u32 new_color; >> @@ -136,6 +414,39 @@ static void apply_lut(const struct vkms_crtc_state *crtc_state, struct line_buff >> } >> } >> >> +static void pre_blend_color_transform(const struct vkms_plane_state *plane_state, struct line_buffer *output_buffer) >> +{ >> + struct drm_colorop *pipeline = plane_state->base.base.color_pipeline; >> + /* TODO this is probably wrong */ >> + struct drm_colorop_state *colorop_state; >> + >> + if (!pipeline) >> + return; >> + >> + colorop_state = pipeline->state; >> + >> + if (!colorop_state) >> + return; >> + >> + for (size_t x = 0; x < output_buffer->n_pixels; x++) { >> + struct pixel_argb_u16 *pixel = &output_buffer->pixels[x]; >> + >> + if (pipeline->type == DRM_COLOROP_1D_CURVE && >> + colorop_state->bypass == false) { >> + switch (colorop_state->curve_1d_type) { >> + case DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF: >> + break; >> + case DRM_COLOROP_1D_CURVE_SRGB_EOTF: >> + default: >> + pixel->r = apply_lut_to_channel_value(&srgb_eotf, pixel->r, LUT_RED); >> + pixel->g = apply_lut_to_channel_value(&srgb_eotf, pixel->g, LUT_GREEN); >> + pixel->b = apply_lut_to_channel_value(&srgb_eotf, pixel->b, LUT_BLUE); >> + break; >> + } >> + } >> + } >> +} >> + >> /** >> * @wb_frame_info: The writeback frame buffer metadata >> * @crtc_state: The crtc state >> @@ -168,8 +479,13 @@ static void blend(struct vkms_writeback_job *wb, >> continue; >> >> plane[i]->plane_read(stage_buffer, plane[i]->frame_info, y); >> + >> + /* do per-plane color transformations here */ >> + // pre_blend_color_transform(plane[i], stage_buffer); >> + >> pre_mul_alpha_blend(plane[i]->frame_info, stage_buffer, >> output_buffer); >> + pre_blend_color_transform(plane[i], output_buffer); > > I see it should be applied to the `stage_buffer` before blending (i.e. > pre_mul_alpha_blend()) and in the lines commented above. Were you > getting any unexpected result? > v2 fixes this. You're absolutely right. I did see some issues and was experimenting with moving things around, but it needs to be before the blend call. > Otherwise, having this VKMS implementation looks very nice. Thank you! > Thanks :) Harry > Melissa > >> } >> >> apply_lut(crtc_state, output_buffer); >> diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h >> index 310b31f47928..c04f714cd486 100644 >> --- a/drivers/gpu/drm/vkms/vkms_drv.h >> +++ b/drivers/gpu/drm/vkms/vkms_drv.h >> @@ -168,4 +168,8 @@ void vkms_set_composer(struct vkms_output *out, bool enabled); >> /* Writeback */ >> int vkms_enable_writeback_connector(struct vkms_device *vkmsdev); >> >> +/* Colorops */ >> +int vkms_initialize_colorops(struct drm_plane *plane); >> + >> + >> #endif /* _VKMS_DRV_H_ */ >> diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c >> index b3f8a115cc23..cbffbdd7cbf9 100644 >> --- a/drivers/gpu/drm/vkms/vkms_plane.c >> +++ b/drivers/gpu/drm/vkms/vkms_plane.c >> @@ -237,5 +237,7 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev, >> >> drm_plane_helper_add(&plane->base, funcs); >> >> + vkms_initialize_colorops(&plane->base); >> + >> return plane; >> } >> -- >> 2.42.0 >>