[PATCH v2 3/7] drm/vkms: add rotate-90 property
Maíra Canal
mcanal at igalia.com
Fri Apr 14 13:51:47 UTC 2023
Currently, vkms only supports the rotate-180 property. Therefore,
improve the vkms IGT test coverage by adding the rotate-90 property to
vkms. The rotation was implement by software: rotate the way the
blending occurs by making the source x axis be the destination y axis and
the source y axis be the destination x axis.
Tested with igt at kms_rotation_crc@primary-rotation-90,
igt at kms_rotation_crc@sprite-rotation-90, and
igt at kms_rotation_crc@sprite-rotation-90-pos-100-0.
Signed-off-by: Maíra Canal <mcanal at igalia.com>
---
drivers/gpu/drm/vkms/vkms_composer.c | 29 ++++++++++++++++++++--------
drivers/gpu/drm/vkms/vkms_formats.c | 28 ++++++++++++++++++++-------
drivers/gpu/drm/vkms/vkms_plane.c | 2 ++
3 files changed, 44 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index 914d85ac1654..824bb65badb7 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -17,6 +17,9 @@ static struct pixel_argb_u16 *get_out_buffer(const struct vkms_frame_info *frame
struct pixel_argb_u16 *out = output_buffer->pixels;
switch (frame_info->rotation & DRM_MODE_ROTATE_MASK) {
+ case DRM_MODE_ROTATE_90:
+ out -= frame_info->dst.y1;
+ break;
case DRM_MODE_ROTATE_180:
out -= frame_info->dst.x1;
break;
@@ -58,10 +61,12 @@ static void pre_mul_alpha_blend(struct vkms_frame_info *frame_info,
{
struct pixel_argb_u16 *out = get_out_buffer(frame_info, output_buffer);
struct pixel_argb_u16 *in = stage_buffer->pixels;
- int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
- stage_buffer->n_pixels);
+ int limit = min_t(size_t, drm_rect_width(&frame_info->dst), stage_buffer->n_pixels);
+
+ if (frame_info->rotation & DRM_MODE_ROTATE_90)
+ limit = min_t(size_t, drm_rect_height(&frame_info->dst), stage_buffer->n_pixels);
- for (int x = 0; x < x_limit; x++) {
+ for (int x = 0; x < limit; x++) {
out[x].a = (u16)0xffff;
out[x].r = pre_mul_blend_channel(in[x].r, out[x].r, in[x].a);
out[x].g = pre_mul_blend_channel(in[x].g, out[x].g, in[x].a);
@@ -72,6 +77,10 @@ static void pre_mul_alpha_blend(struct vkms_frame_info *frame_info,
static int get_y_pos(struct vkms_frame_info *frame_info, int y)
{
switch (frame_info->rotation & DRM_MODE_ROTATE_MASK) {
+ case DRM_MODE_ROTATE_90:
+ if (y - frame_info->dst.x1 < 0)
+ return -1;
+ return frame_info->dst.x2 - y - 1;
case DRM_MODE_ROTATE_180:
return drm_rect_height(&frame_info->dst) - y - 1;
default:
@@ -79,11 +88,15 @@ static int get_y_pos(struct vkms_frame_info *frame_info, int y)
}
}
-static bool check_y_limit(struct vkms_frame_info *frame_info, int y)
+static bool check_limit(struct vkms_frame_info *frame_info, int pos)
{
- if (y >= frame_info->dst.y1 && y < frame_info->dst.y2)
- return true;
-
+ if (frame_info->rotation & DRM_MODE_ROTATE_90) {
+ if (pos >= 0 && pos < drm_rect_width(&frame_info->dst))
+ return true;
+ } else {
+ if (pos >= frame_info->dst.y1 && pos < frame_info->dst.y2)
+ return true;
+ }
return false;
}
@@ -125,7 +138,7 @@ static void blend(struct vkms_writeback_job *wb,
for (size_t i = 0; i < n_active_planes; i++) {
y_pos = get_y_pos(plane[i]->frame_info, y);
- if (!check_y_limit(plane[i]->frame_info, y_pos))
+ if (!check_limit(plane[i]->frame_info, y_pos))
continue;
vkms_compose_row(stage_buffer, plane[i], y_pos);
diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index 7a98d4d75f17..90b72b0ff8c9 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -49,6 +49,20 @@ static int get_x_position(const struct vkms_frame_info *frame_info, int x_limit,
return x;
}
+static int get_limit(const struct vkms_frame_info *frame_info, struct line_buffer *stage_buffer)
+{
+ if (frame_info->rotation & DRM_MODE_ROTATE_90)
+ return min_t(size_t, drm_rect_height(&frame_info->dst), stage_buffer->n_pixels);
+ return min_t(size_t, drm_rect_width(&frame_info->dst), stage_buffer->n_pixels);
+}
+
+static void *get_src_pixels(const struct vkms_frame_info *frame_info, int x, int y, int pixel_size)
+{
+ if (frame_info->rotation & DRM_MODE_ROTATE_90)
+ return get_packed_src_addr(frame_info, x + frame_info->dst.y1) + pixel_size * y;
+ return get_packed_src_addr(frame_info, y) + pixel_size * x;
+}
+
static void ARGB8888_to_argb_u16(u16 *src_pixels, struct pixel_argb_u16 *out_pixels, int x)
{
u8 *pixels = (u8 *)src_pixels;
@@ -110,21 +124,21 @@ static void RGB565_to_argb_u16(u16 *src_pixels, struct pixel_argb_u16 *out_pixel
void vkms_compose_row(struct line_buffer *stage_buffer, struct vkms_plane_state *plane, int y)
{
struct pixel_argb_u16 *out_pixels = stage_buffer->pixels;
- u16 *src_pixels = get_packed_src_addr(plane->frame_info, y);
- int limit = min_t(size_t, drm_rect_width(&plane->frame_info->dst),
- stage_buffer->n_pixels);
+ int limit = get_limit(plane->frame_info, stage_buffer);
int format = plane->frame_info->fb->format->format;
int pixel_size, x_pos;
+ u16 *src_pixels;
if (format == DRM_FORMAT_RGB565)
- pixel_size = 1;
- else if (format == DRM_FORMAT_ARGB8888 || format == DRM_FORMAT_XRGB8888)
pixel_size = 2;
- else
+ else if (format == DRM_FORMAT_ARGB8888 || format == DRM_FORMAT_XRGB8888)
pixel_size = 4;
+ else
+ pixel_size = 8;
- for (size_t x = 0; x < limit; x++, src_pixels += pixel_size) {
+ for (size_t x = 0; x < limit; x++) {
x_pos = get_x_position(plane->frame_info, limit, x);
+ src_pixels = get_src_pixels(plane->frame_info, x, y, pixel_size);
plane->pixel_read(src_pixels, out_pixels, x_pos);
}
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index f6a884b5872c..ce2ebe56f6e4 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -123,6 +123,7 @@ static void vkms_plane_atomic_update(struct drm_plane *plane,
drm_framebuffer_get(frame_info->fb);
frame_info->rotation = drm_rotation_simplify(new_state->rotation,
DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
DRM_MODE_ROTATE_180);
drm_rect_rotate(&frame_info->dst, drm_rect_width(&frame_info->dst),
@@ -239,6 +240,7 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev,
drm_plane_create_rotation_property(&plane->base, DRM_MODE_ROTATE_0,
DRM_MODE_ROTATE_0 |
+ DRM_MODE_ROTATE_90 |
DRM_MODE_ROTATE_180);
return plane;
--
2.39.2
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