On Tue, 22 Sep 2015 17:54:57 +0200
Tobias Jakobi <tjak...@math.uni-bielefeld.de> wrote:
> This allows setting the two direction registers, which specify how
> the engine blits pixels. This can be used for overlapping blits,
> which happen e.g. when 'moving' a rectangular region inside a
> fixed buffer.
Code itself looks good. But as I know, direction registers are related
with flip, not moving. Isn't it? I am not that much familiar with G2D.
Please let me know if I am wrong.
Best regards,
Hyungwon Hwang
>
> Signed-off-by: Tobias Jakobi <tjak...@math.uni-bielefeld.de>
> ---
> exynos/exynos_fimg2d.c | 13 +++++++++++++
> exynos/exynos_fimg2d.h | 38 ++++++++++++++++++++++++++++++++++++++
> 2 files changed, 51 insertions(+)
>
> diff --git a/exynos/exynos_fimg2d.c b/exynos/exynos_fimg2d.c
> index e997d4b..4d5419c 100644
> --- a/exynos/exynos_fimg2d.c
> +++ b/exynos/exynos_fimg2d.c
> @@ -242,6 +242,19 @@ static void g2d_add_base_addr(struct g2d_context
> *ctx, struct g2d_image *img, }
>
> /*
> + * g2d_set_direction - setup direction register (useful for
> overlapping blits).
> + *
> + * @ctx: a pointer to g2d_context structure.
> + * @dir: a pointer to the g2d_direction_val structure.
> + */
> +static void g2d_set_direction(struct g2d_context *ctx,
> + const union g2d_direction_val *dir)
> +{
> + g2d_add_cmd(ctx, SRC_MASK_DIRECT_REG, dir->val[0]);
> + g2d_add_cmd(ctx, DST_PAT_DIRECT_REG, dir->val[1]);
> +}
> +
> +/*
> * g2d_reset - reset fimg2d hardware.
> *
> * @ctx: a pointer to g2d_context structure.
> diff --git a/exynos/exynos_fimg2d.h b/exynos/exynos_fimg2d.h
> index c6b58ac..9eee7c0 100644
> --- a/exynos/exynos_fimg2d.h
> +++ b/exynos/exynos_fimg2d.h
> @@ -189,6 +189,11 @@ enum e_g2d_exec_flag {
> G2D_EXEC_FLAG_ASYNC = (1 << 0)
> };
>
> +enum e_g2d_dir_mode {
> + G2D_DIR_MODE_POSITIVE = 0,
> + G2D_DIR_MODE_NEGATIVE = 1
> +};
> +
> union g2d_point_val {
> unsigned int val;
> struct {
> @@ -269,6 +274,39 @@ union g2d_blend_func_val {
> } data;
> };
>
> +union g2d_direction_val {
> + unsigned int val[2];
> + struct {
> + /* SRC_MSK_DIRECT_REG [0:1] (source) */
> + enum e_g2d_dir_mode src_x_direction:1;
> + enum e_g2d_dir_mode src_y_direction:1;
> +
> + /* SRC_MSK_DIRECT_REG [2:3] */
> + unsigned int reversed1:2;
> +
> + /* SRC_MSK_DIRECT_REG [4:5] (mask) */
> + enum e_g2d_dir_mode
> mask_x_direction:1;
> + enum e_g2d_dir_mode
> mask_y_direction:1; +
> + /* SRC_MSK_DIRECT_REG [6:31] */
> + unsigned int padding1:26;
> +
> + /* DST_PAT_DIRECT_REG [0:1] (destination) */
> + enum e_g2d_dir_mode dst_x_direction:1;
> + enum e_g2d_dir_mode dst_y_direction:1;
> +
> + /* DST_PAT_DIRECT_REG [2:3] */
> + unsigned int reversed2:2;
> +
> + /* DST_PAT_DIRECT_REG [4:5] (pattern) */
> + enum e_g2d_dir_mode pat_x_direction:1;
> + enum e_g2d_dir_mode pat_y_direction:1;
> +
> + /* DST_PAT_DIRECT_REG [6:31] */
> + unsigned int padding2:26;
> + } data;
> +};
> +
> struct g2d_image {
> enum e_g2d_select_mode select_mode;
> enum e_g2d_color_mode color_mode;
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
