6.12-stable review patch. If anyone has any objections, please let me know.
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From: Kerem Karabay kekrby@gmail.com
[ Upstream commit c9043706cb11b8005e145debe0a3211acd08e2c1 ]
Add XRGB8888 emulation helper for devices that only support BGR888.
Signed-off-by: Kerem Karabay kekrby@gmail.com Signed-off-by: Aditya Garg gargaditya08@live.com Reviewed-by: Thomas Zimmermann tzimmermann@suse.de Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Link: https://patchwork.freedesktop.org/patch/msgid/9A67EA95-9BC7-4D56-8F87-05EAC1... Stable-dep-of: 05663d88fd0b ("drm/tests: Fix drm_test_fb_xrgb8888_to_xrgb2101010() on big-endian") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_format_helper.c | 54 +++++++++++++ .../gpu/drm/tests/drm_format_helper_test.c | 81 +++++++++++++++++++ include/drm/drm_format_helper.h | 3 + 3 files changed, 138 insertions(+)
diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index b1be458ed4dd..4f60c8d8f63e 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -702,6 +702,57 @@ void drm_fb_xrgb8888_to_rgb888(struct iosys_map *dst, const unsigned int *dst_pi } EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb888);
+static void drm_fb_xrgb8888_to_bgr888_line(void *dbuf, const void *sbuf, unsigned int pixels) +{ + u8 *dbuf8 = dbuf; + const __le32 *sbuf32 = sbuf; + unsigned int x; + u32 pix; + + for (x = 0; x < pixels; x++) { + pix = le32_to_cpu(sbuf32[x]); + /* write red-green-blue to output in little endianness */ + *dbuf8++ = (pix & 0x00ff0000) >> 16; + *dbuf8++ = (pix & 0x0000ff00) >> 8; + *dbuf8++ = (pix & 0x000000ff) >> 0; + } +} + +/** + * drm_fb_xrgb8888_to_bgr888 - Convert XRGB8888 to BGR888 clip buffer + * @dst: Array of BGR888 destination buffers + * @dst_pitch: Array of numbers of bytes between the start of two consecutive scanlines + * within @dst; can be NULL if scanlines are stored next to each other. + * @src: Array of XRGB8888 source buffers + * @fb: DRM framebuffer + * @clip: Clip rectangle area to copy + * @state: Transform and conversion state + * + * This function copies parts of a framebuffer to display memory and converts the + * color format during the process. Destination and framebuffer formats must match. The + * parameters @dst, @dst_pitch and @src refer to arrays. Each array must have at + * least as many entries as there are planes in @fb's format. Each entry stores the + * value for the format's respective color plane at the same index. + * + * This function does not apply clipping on @dst (i.e. the destination is at the + * top-left corner). + * + * Drivers can use this function for BGR888 devices that don't natively + * support XRGB8888. + */ +void drm_fb_xrgb8888_to_bgr888(struct iosys_map *dst, const unsigned int *dst_pitch, + const struct iosys_map *src, const struct drm_framebuffer *fb, + const struct drm_rect *clip, struct drm_format_conv_state *state) +{ + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 3, + }; + + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, state, + drm_fb_xrgb8888_to_bgr888_line); +} +EXPORT_SYMBOL(drm_fb_xrgb8888_to_bgr888); + static void drm_fb_xrgb8888_to_argb8888_line(void *dbuf, const void *sbuf, unsigned int pixels) { __le32 *dbuf32 = dbuf; @@ -1035,6 +1086,9 @@ int drm_fb_blit(struct iosys_map *dst, const unsigned int *dst_pitch, uint32_t d } else if (dst_format == DRM_FORMAT_RGB888) { drm_fb_xrgb8888_to_rgb888(dst, dst_pitch, src, fb, clip, state); return 0; + } else if (dst_format == DRM_FORMAT_BGR888) { + drm_fb_xrgb8888_to_bgr888(dst, dst_pitch, src, fb, clip, state); + return 0; } else if (dst_format == DRM_FORMAT_ARGB8888) { drm_fb_xrgb8888_to_argb8888(dst, dst_pitch, src, fb, clip, state); return 0; diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c index b4d62fb1d909..2a3d80b27cae 100644 --- a/drivers/gpu/drm/tests/drm_format_helper_test.c +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c @@ -60,6 +60,11 @@ struct convert_to_rgb888_result { const u8 expected[TEST_BUF_SIZE]; };
+struct convert_to_bgr888_result { + unsigned int dst_pitch; + const u8 expected[TEST_BUF_SIZE]; +}; + struct convert_to_argb8888_result { unsigned int dst_pitch; const u32 expected[TEST_BUF_SIZE]; @@ -107,6 +112,7 @@ struct convert_xrgb8888_case { struct convert_to_argb1555_result argb1555_result; struct convert_to_rgba5551_result rgba5551_result; struct convert_to_rgb888_result rgb888_result; + struct convert_to_bgr888_result bgr888_result; struct convert_to_argb8888_result argb8888_result; struct convert_to_xrgb2101010_result xrgb2101010_result; struct convert_to_argb2101010_result argb2101010_result; @@ -151,6 +157,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x00, 0x00, 0xFF }, }, + .bgr888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0xFF, 0x00, 0x00 }, + }, .argb8888_result = { .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF0000 }, @@ -217,6 +227,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0x00, 0x00, 0xFF }, }, + .bgr888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { 0xFF, 0x00, 0x00 }, + }, .argb8888_result = { .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { 0xFFFF0000 }, @@ -330,6 +344,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, }, }, + .bgr888_result = { + .dst_pitch = TEST_USE_DEFAULT_PITCH, + .expected = { + 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, + 0xFF, 0x00, 0x00, 0x00, 0xFF, 0x00, + 0x00, 0x00, 0xFF, 0xFF, 0x00, 0xFF, + 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, + }, + }, .argb8888_result = { .dst_pitch = TEST_USE_DEFAULT_PITCH, .expected = { @@ -468,6 +491,17 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, }, + .bgr888_result = { + .dst_pitch = 15, + .expected = { + 0x0E, 0x44, 0x9C, 0x11, 0x4D, 0x05, 0xA8, 0xF3, 0x03, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x6C, 0xF0, 0x73, 0x0E, 0x44, 0x9C, 0x11, 0x4D, 0x05, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0xA8, 0x03, 0x03, 0x6C, 0xF0, 0x73, 0x0E, 0x44, 0x9C, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + }, + }, .argb8888_result = { .dst_pitch = 20, .expected = { @@ -914,6 +948,52 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test) KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); }
+static void drm_test_fb_xrgb8888_to_bgr888(struct kunit *test) +{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_bgr888_result *result = ¶ms->bgr888_result; + size_t dst_size; + u8 *buf = NULL; + __le32 *xrgb8888 = NULL; + struct iosys_map dst, src; + + struct drm_framebuffer fb = { + .format = drm_format_info(DRM_FORMAT_XRGB8888), + .pitches = { params->pitch, 0, 0 }, + }; + + dst_size = conversion_buf_size(DRM_FORMAT_BGR888, result->dst_pitch, + ¶ms->clip, 0); + KUNIT_ASSERT_GT(test, dst_size, 0); + + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf); + iosys_map_set_vaddr(&dst, buf); + + xrgb8888 = cpubuf_to_le32(test, params->xrgb8888, TEST_BUF_SIZE); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, xrgb8888); + iosys_map_set_vaddr(&src, xrgb8888); + + /* + * BGR888 expected results are already in little-endian + * order, so there's no need to convert the test output. + */ + drm_fb_xrgb8888_to_bgr888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip, + &fmtcnv_state); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); + + buf = dst.vaddr; /* restore original value of buf */ + memset(buf, 0, dst_size); + + int blit_result = 0; + + blit_result = drm_fb_blit(&dst, &result->dst_pitch, DRM_FORMAT_BGR888, &src, &fb, ¶ms->clip, + &fmtcnv_state); + + KUNIT_EXPECT_FALSE(test, blit_result); + KUNIT_EXPECT_MEMEQ(test, buf, result->expected, dst_size); +} + static void drm_test_fb_xrgb8888_to_argb8888(struct kunit *test) { const struct convert_xrgb8888_case *params = test->param_value; @@ -1851,6 +1931,7 @@ static struct kunit_case drm_format_helper_test_cases[] = { KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb1555, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgba5551, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb888, convert_xrgb8888_gen_params), + KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_bgr888, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb8888, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_xrgb2101010, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_argb2101010, convert_xrgb8888_gen_params), diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 428d81afe215..aa1604d92c1a 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -96,6 +96,9 @@ void drm_fb_xrgb8888_to_rgba5551(struct iosys_map *dst, const unsigned int *dst_ void drm_fb_xrgb8888_to_rgb888(struct iosys_map *dst, const unsigned int *dst_pitch, const struct iosys_map *src, const struct drm_framebuffer *fb, const struct drm_rect *clip, struct drm_format_conv_state *state); +void drm_fb_xrgb8888_to_bgr888(struct iosys_map *dst, const unsigned int *dst_pitch, + const struct iosys_map *src, const struct drm_framebuffer *fb, + const struct drm_rect *clip, struct drm_format_conv_state *state); void drm_fb_xrgb8888_to_argb8888(struct iosys_map *dst, const unsigned int *dst_pitch, const struct iosys_map *src, const struct drm_framebuffer *fb, const struct drm_rect *clip, struct drm_format_conv_state *state);