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 <[email protected]> Signed-off-by: Maíra Canal <[email protected]> --- 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
