All convertions from the ARGB16161616 format follow the same structure.
Instead of repeting the same structure for each supported format, create
a function to encapsulate the common logic and isolate the pixel
conversion functions in a callback function.
Suggested-by: Melissa Wen <mwen@xxxxxxxxxx>
Signed-off-by: Maíra Canal <mcanal@xxxxxxxxxx>
---
drivers/gpu/drm/vkms/vkms_composer.c | 4 +-
drivers/gpu/drm/vkms/vkms_drv.h | 4 +-
drivers/gpu/drm/vkms/vkms_formats.c | 140 +++++++++++---------------
drivers/gpu/drm/vkms/vkms_formats.h | 2 +-
drivers/gpu/drm/vkms/vkms_writeback.c | 2 +-
5 files changed, 63 insertions(+), 89 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index e65104a2203d..43dc94483846 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -131,7 +131,7 @@ static void blend(struct vkms_writeback_job *wb,
*crc32 = crc32_le(*crc32, (void *)output_buffer->pixels, row_size);
if (wb)
- wb->wb_write(&wb->wb_frame_info, output_buffer, y_pos);
+ vkms_writeback_row(wb, output_buffer, y_pos);
}
}
@@ -145,7 +145,7 @@ static int check_format_funcs(struct vkms_crtc_state *crtc_state,
if (!planes[i]->pixel_read)
return -1;
- if (active_wb && !active_wb->wb_write)
+ if (active_wb && !active_wb->pixel_write)
return -1;
return 0;
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 883266bb0d4a..14819c36e2e8 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -46,8 +46,7 @@ struct line_buffer {
struct vkms_writeback_job {
struct iosys_map data[DRM_FORMAT_MAX_PLANES];
struct vkms_frame_info wb_frame_info;
- void (*wb_write)(struct vkms_frame_info *frame_info,
- const struct line_buffer *buffer, int y);
+ void (*pixel_write)(u8 *dst_pixels, struct pixel_argb_u16 *in_pixel);
};
/**
@@ -157,6 +156,7 @@ int vkms_verify_crc_source(struct drm_crtc *crtc, const char *source_name,
void vkms_composer_worker(struct work_struct *work);
void vkms_set_composer(struct vkms_output *out, bool enabled);
void vkms_compose_row(struct line_buffer *stage_buffer, struct vkms_plane_state *plane, int y);
+void vkms_writeback_row(struct vkms_writeback_job *wb, const struct line_buffer *src_buffer, int y);
/* Writeback */
int vkms_enable_writeback_connector(struct vkms_device *vkmsdev);
diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c
index ebacb8efa055..99fb756ad6fb 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.c
+++ b/drivers/gpu/drm/vkms/vkms_formats.c
@@ -137,107 +137,81 @@ void vkms_compose_row(struct line_buffer *stage_buffer, struct vkms_plane_state
* They are used in the `compose_active_planes` to convert and store a line
* from the src_buffer to the writeback buffer.
*/
-static void argb_u16_to_ARGB8888(struct vkms_frame_info *frame_info,
- const struct line_buffer *src_buffer, int y)
+static void argb_u16_to_ARGB8888(u8 *dst_pixels, struct pixel_argb_u16 *in_pixel)
{
- int x_dst = frame_info->dst.x1;
- u8 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
- struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
- int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
- src_buffer->n_pixels);
-
- for (size_t x = 0; x < x_limit; x++, dst_pixels += 4) {
- /*
- * This sequence below is important because the format's byte order is
- * in little-endian. In the case of the ARGB8888 the memory is
- * organized this way:
- *
- * | Addr | = blue channel
- * | Addr + 1 | = green channel
- * | Addr + 2 | = Red channel
- * | Addr + 3 | = Alpha channel
- */
- dst_pixels[3] = DIV_ROUND_CLOSEST(in_pixels[x].a, 257);
- dst_pixels[2] = DIV_ROUND_CLOSEST(in_pixels[x].r, 257);
- dst_pixels[1] = DIV_ROUND_CLOSEST(in_pixels[x].g, 257);
- dst_pixels[0] = DIV_ROUND_CLOSEST(in_pixels[x].b, 257);
- }
+ /*
+ * This sequence below is important because the format's byte order is
+ * in little-endian. In the case of the ARGB8888 the memory is
+ * organized this way:
+ *
+ * | Addr | = blue channel
+ * | Addr + 1 | = green channel
+ * | Addr + 2 | = Red channel
+ * | Addr + 3 | = Alpha channel
+ */
+ dst_pixels[3] = DIV_ROUND_CLOSEST(in_pixel->a, 257);
+ dst_pixels[2] = DIV_ROUND_CLOSEST(in_pixel->r, 257);
+ dst_pixels[1] = DIV_ROUND_CLOSEST(in_pixel->g, 257);
+ dst_pixels[0] = DIV_ROUND_CLOSEST(in_pixel->b, 257);
}
-static void argb_u16_to_XRGB8888(struct vkms_frame_info *frame_info,
- const struct line_buffer *src_buffer, int y)
+static void argb_u16_to_XRGB8888(u8 *dst_pixels, struct pixel_argb_u16 *in_pixel)
{
- int x_dst = frame_info->dst.x1;
- u8 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
- struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
- int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
- src_buffer->n_pixels);
-
- for (size_t x = 0; x < x_limit; x++, dst_pixels += 4) {
- dst_pixels[3] = 0xff;
- dst_pixels[2] = DIV_ROUND_CLOSEST(in_pixels[x].r, 257);
- dst_pixels[1] = DIV_ROUND_CLOSEST(in_pixels[x].g, 257);
- dst_pixels[0] = DIV_ROUND_CLOSEST(in_pixels[x].b, 257);
- }
+ dst_pixels[3] = 0xff;
+ dst_pixels[2] = DIV_ROUND_CLOSEST(in_pixel->r, 257);
+ dst_pixels[1] = DIV_ROUND_CLOSEST(in_pixel->g, 257);
+ dst_pixels[0] = DIV_ROUND_CLOSEST(in_pixel->b, 257);
}
-static void argb_u16_to_ARGB16161616(struct vkms_frame_info *frame_info,
- const struct line_buffer *src_buffer, int y)
+static void argb_u16_to_ARGB16161616(u8 *dst_pixels, struct pixel_argb_u16 *in_pixel)
{
- int x_dst = frame_info->dst.x1;
- u16 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
- struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
- int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
- src_buffer->n_pixels);
-
- for (size_t x = 0; x < x_limit; x++, dst_pixels += 4) {
- dst_pixels[3] = cpu_to_le16(in_pixels[x].a);
- dst_pixels[2] = cpu_to_le16(in_pixels[x].r);
- dst_pixels[1] = cpu_to_le16(in_pixels[x].g);
- dst_pixels[0] = cpu_to_le16(in_pixels[x].b);
- }
+ u16 *pixels = (u16 *)dst_pixels;
+
+ pixels[3] = cpu_to_le16(in_pixel->a);
+ pixels[2] = cpu_to_le16(in_pixel->r);
+ pixels[1] = cpu_to_le16(in_pixel->g);
+ pixels[0] = cpu_to_le16(in_pixel->b);
}
-static void argb_u16_to_XRGB16161616(struct vkms_frame_info *frame_info,
- const struct line_buffer *src_buffer, int y)
+static void argb_u16_to_XRGB16161616(u8 *dst_pixels, struct pixel_argb_u16 *in_pixel)
{
- int x_dst = frame_info->dst.x1;
- u16 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
- struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
- int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
- src_buffer->n_pixels);
-
- for (size_t x = 0; x < x_limit; x++, dst_pixels += 4) {
- dst_pixels[3] = 0xffff;
- dst_pixels[2] = cpu_to_le16(in_pixels[x].r);
- dst_pixels[1] = cpu_to_le16(in_pixels[x].g);
- dst_pixels[0] = cpu_to_le16(in_pixels[x].b);
- }
+ u16 *pixels = (u16 *)dst_pixels;
+
+ pixels[3] = 0xffff;
+ pixels[2] = cpu_to_le16(in_pixel->r);
+ pixels[1] = cpu_to_le16(in_pixel->g);
+ pixels[0] = cpu_to_le16(in_pixel->b);
}
-static void argb_u16_to_RGB565(struct vkms_frame_info *frame_info,
- const struct line_buffer *src_buffer, int y)
+static void argb_u16_to_RGB565(u8 *dst_pixels, struct pixel_argb_u16 *in_pixel)
{
- int x_dst = frame_info->dst.x1;
- u16 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
- struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
- int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst),
- src_buffer->n_pixels);
+ u16 *pixels = (u16 *)dst_pixels;
s64 fp_rb_ratio = drm_fixp_div(drm_int2fixp(65535), drm_int2fixp(31));
s64 fp_g_ratio = drm_fixp_div(drm_int2fixp(65535), drm_int2fixp(63));
- for (size_t x = 0; x < x_limit; x++, dst_pixels++) {
- s64 fp_r = drm_int2fixp(in_pixels[x].r);
- s64 fp_g = drm_int2fixp(in_pixels[x].g);
- s64 fp_b = drm_int2fixp(in_pixels[x].b);
+ s64 fp_r = drm_int2fixp(in_pixel->r);
+ s64 fp_g = drm_int2fixp(in_pixel->g);
+ s64 fp_b = drm_int2fixp(in_pixel->b);
- u16 r = drm_fixp2int(drm_fixp_div(fp_r, fp_rb_ratio));
- u16 g = drm_fixp2int(drm_fixp_div(fp_g, fp_g_ratio));
- u16 b = drm_fixp2int(drm_fixp_div(fp_b, fp_rb_ratio));
+ u16 r = drm_fixp2int(drm_fixp_div(fp_r, fp_rb_ratio));
+ u16 g = drm_fixp2int(drm_fixp_div(fp_g, fp_g_ratio));
+ u16 b = drm_fixp2int(drm_fixp_div(fp_b, fp_rb_ratio));
- *dst_pixels = cpu_to_le16(r << 11 | g << 5 | b);
- }
+ *pixels = cpu_to_le16(r << 11 | g << 5 | b);
+}
+
+void vkms_writeback_row(struct vkms_writeback_job *wb,
+ const struct line_buffer *src_buffer, int y)
+{
+ struct vkms_frame_info *frame_info = &wb->wb_frame_info;
+ int x_dst = frame_info->dst.x1;
+ u8 *dst_pixels = packed_pixels_addr(frame_info, x_dst, y);
+ struct pixel_argb_u16 *in_pixels = src_buffer->pixels;
+ int x_limit = min_t(size_t, drm_rect_width(&frame_info->dst), src_buffer->n_pixels);
+
+ for (size_t x = 0; x < x_limit; x++, dst_pixels += frame_info->cpp)
+ wb->pixel_write(dst_pixels, &in_pixels[x]);
}
void *get_pixel_conversion_function(u32 format)
@@ -258,7 +232,7 @@ void *get_pixel_conversion_function(u32 format)
}
}
-void *get_line_to_frame_function(u32 format)
+void *get_pixel_write_function(u32 format)
{
switch (format) {
case DRM_FORMAT_ARGB8888:
diff --git a/drivers/gpu/drm/vkms/vkms_formats.h b/drivers/gpu/drm/vkms/vkms_formats.h
index c5b113495d0c..cf59c2ed8e9a 100644
--- a/drivers/gpu/drm/vkms/vkms_formats.h
+++ b/drivers/gpu/drm/vkms/vkms_formats.h
@@ -7,6 +7,6 @@
void *get_pixel_conversion_function(u32 format);
-void *get_line_to_frame_function(u32 format);
+void *get_pixel_write_function(u32 format);
#endif /* _VKMS_FORMATS_H_ */
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
index 36e75fcefc1a..d7e63aa14663 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -151,7 +151,7 @@ static void vkms_wb_atomic_commit(struct drm_connector *conn,
wb_frame_info->cpp = fb->format->cpp[0];
drm_writeback_queue_job(wb_conn, connector_state);
- active_wb->wb_write = get_line_to_frame_function(wb_format);
+ active_wb->pixel_write = get_pixel_write_function(wb_format);
drm_rect_init(&wb_frame_info->src, 0, 0, crtc_width, crtc_height);
drm_rect_init(&wb_frame_info->dst, 0, 0, crtc_width, crtc_height);
}
--
2.40.1
