Hi Am 23.12.22 um 13:44 schrieb José Expósito:
Hi Thomas, Compiling this patch with sparse enabled (you can do it from the KUnit tests adding "--make_options C=2") throws a warning: drm_format_helper.c:614:27: warning: incorrect type in assignment (different base types) drm_format_helper.c:614:27: expected unsigned int [usertype] drm_format_helper.c:614:27: got restricted __le32 [usertype] You might want to silence the warning with... On Tue, Dec 20, 2022 at 05:11:39PM +0100, Thomas Zimmermann wrote:Add dedicated helper to convert from XRGB8888 to ARGB8888. Sets all alpha bits to make pixels fully opaque. v2: * use cpubuf_to_le32() * type fixes Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> --- drivers/gpu/drm/drm_format_helper.c | 53 +++++++++++++++- .../gpu/drm/tests/drm_format_helper_test.c | 63 +++++++++++++++++++ include/drm/drm_format_helper.h | 3 + 3 files changed, 117 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 36d2ca9d0f01..23837b202988 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -446,6 +446,54 @@ 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_argb8888_line(void *dbuf, const void *sbuf, unsigned int pixels)+{ + u32 *dbuf32 = dbuf; + const __le32 *sbuf32 = sbuf; + unsigned int x; + u32 pix; + + for (x = 0; x < pixels; x++) { + pix = le32_to_cpu(sbuf32[x]); + pix |= GENMASK(31, 24); /* fill alpha bits */ + dbuf32[x] = cpu_to_le32(pix);- dbuf32[x] = cpu_to_le32(pix); + dbuf32[x] = (__force u32)cpu_to_le32(pix);
I'll fix those warnings.
Other than that: Reviewed-by: José Expósito <jose.exposito89@xxxxxxxxx>
Thanks a lot for reviewing. Best regards Thomas
+ } +} + +/** + * drm_fb_xrgb8888_to_argb8888 - Convert XRGB8888 to ARGB8888 clip buffer + * @dst: Array of ARGB8888 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 buffer + * @fb: DRM framebuffer + * @clip: Clip rectangle area to copy + * + * This function copies parts of a framebuffer to display memory and converts the + * color format during the process. 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 ARGB8888 devices that don't support XRGB8888 + * natively. It sets an opaque alpha channel as part of the conversion. + */ +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) +{ + static const u8 dst_pixsize[DRM_FORMAT_MAX_PLANES] = { + 4, + }; + + drm_fb_xfrm(dst, dst_pitch, dst_pixsize, src, fb, clip, false, + drm_fb_xrgb8888_to_argb8888_line); +} +EXPORT_SYMBOL(drm_fb_xrgb8888_to_argb8888); + static void drm_fb_rgb565_to_xrgb8888_line(void *dbuf, const void *sbuf, unsigned int pixels) { __le32 *dbuf32 = dbuf; @@ -646,8 +694,6 @@ int drm_fb_blit(struct iosys_map *dst, const unsigned int *dst_pitch, uint32_t d /* treat alpha channel like filler bits */ if (fb_format == DRM_FORMAT_ARGB8888) fb_format = DRM_FORMAT_XRGB8888; - if (dst_format == DRM_FORMAT_ARGB8888) - dst_format = DRM_FORMAT_XRGB8888; if (fb_format == DRM_FORMAT_ARGB2101010) fb_format = DRM_FORMAT_XRGB2101010; if (dst_format == DRM_FORMAT_ARGB2101010) @@ -669,6 +715,9 @@ 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); return 0; + } else if (dst_format == DRM_FORMAT_ARGB8888) { + drm_fb_xrgb8888_to_argb8888(dst, dst_pitch, src, fb, clip); + return 0; } else if (dst_format == DRM_FORMAT_XRGB2101010) { drm_fb_xrgb8888_to_xrgb2101010(dst, dst_pitch, src, fb, clip); 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 c2411ec808a1..bc969413a412 100644 --- a/drivers/gpu/drm/tests/drm_format_helper_test.c +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c @@ -37,6 +37,11 @@ struct convert_to_rgb888_result { const u8 expected[TEST_BUF_SIZE]; };+struct convert_to_argb8888_result {+ unsigned int dst_pitch; + const u32 expected[TEST_BUF_SIZE]; +}; + struct convert_to_xrgb2101010_result { unsigned int dst_pitch; const u32 expected[TEST_BUF_SIZE]; @@ -51,6 +56,7 @@ struct convert_xrgb8888_case { struct convert_to_rgb332_result rgb332_result; struct convert_to_rgb565_result rgb565_result; struct convert_to_rgb888_result rgb888_result; + struct convert_to_argb8888_result argb8888_result; struct convert_to_xrgb2101010_result xrgb2101010_result; };@@ -77,6 +83,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = {.dst_pitch = 0, .expected = { 0x00, 0x00, 0xFF }, }, + .argb8888_result = { + .dst_pitch = 0, + .expected = { 0xFFFF0000 }, + }, .xrgb2101010_result = { .dst_pitch = 0, .expected = { 0x3FF00000 }, @@ -107,6 +117,10 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { .dst_pitch = 0, .expected = { 0x00, 0x00, 0xFF }, }, + .argb8888_result = { + .dst_pitch = 0, + .expected = { 0xFFFF0000 }, + }, .xrgb2101010_result = { .dst_pitch = 0, .expected = { 0x3FF00000 }, @@ -169,6 +183,15 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, }, }, + .argb8888_result = { + .dst_pitch = 0, + .expected = { + 0xFFFFFFFF, 0xFF000000, + 0xFFFF0000, 0xFF00FF00, + 0xFF0000FF, 0xFFFF00FF, + 0xFFFFFF00, 0xFF00FFFF, + }, + }, .xrgb2101010_result = { .dst_pitch = 0, .expected = { @@ -229,6 +252,14 @@ static struct convert_xrgb8888_case convert_xrgb8888_cases[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }, }, + .argb8888_result = { + .dst_pitch = 20, + .expected = { + 0xFF0E449C, 0xFF114D05, 0xFFA80303, 0x00000000, 0x00000000, + 0xFF6C7073, 0xFF0E449C, 0xFF114D05, 0x00000000, 0x00000000, + 0xFFA80303, 0xFF6C7073, 0xFF0E449C, 0x00000000, 0x00000000, + }, + }, .xrgb2101010_result = { .dst_pitch = 20, .expected = { @@ -448,6 +479,37 @@ static void drm_test_fb_xrgb8888_to_rgb888(struct kunit *test) KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); }+static void drm_test_fb_xrgb8888_to_argb8888(struct kunit *test)+{ + const struct convert_xrgb8888_case *params = test->param_value; + const struct convert_to_argb8888_result *result = ¶ms->argb8888_result; + size_t dst_size; + u32 *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_ARGB8888, + result->dst_pitch, ¶ms->clip); + 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); + + drm_fb_xrgb8888_to_argb8888(&dst, &result->dst_pitch, &src, &fb, ¶ms->clip); + buf = le32buf_to_cpu(test, (__force const __le32 *)buf, dst_size / sizeof(u32)); + KUNIT_EXPECT_EQ(test, memcmp(buf, result->expected, dst_size), 0); +} + static void drm_test_fb_xrgb8888_to_xrgb2101010(struct kunit *test) { const struct convert_xrgb8888_case *params = test->param_value; @@ -484,6 +546,7 @@ static struct kunit_case drm_format_helper_test_cases[] = { KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb332, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_rgb565, 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_argb8888, convert_xrgb8888_gen_params), KUNIT_CASE_PARAM(drm_test_fb_xrgb8888_to_xrgb2101010, convert_xrgb8888_gen_params), {} }; diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index eb5c98cf82b8..3ce8129dfe43 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -33,6 +33,9 @@ void drm_fb_xrgb8888_to_rgb565(struct iosys_map *dst, const unsigned int *dst_pi 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); +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); void drm_fb_xrgb8888_to_xrgb2101010(struct iosys_map *dst, const unsigned int *dst_pitch, const struct iosys_map *src, const struct drm_framebuffer *fb, const struct drm_rect *clip); -- 2.39.0
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Ivo Totev
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