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authorTobias Jakobi2015-03-11 14:38:41 -0500
committerEmil Velikov2015-03-16 17:18:05 -0500
commit03c9cccfa03b999874f794c02ddce7e7dfb04c93 (patch)
tree7fe91c64d35ace64aa832ab12565e2695e8310d1 /exynos
parent6f950de953ead6391ffa82b6c517fd4ea3ce3e29 (diff)
downloadexternal-libgbm-03c9cccfa03b999874f794c02ddce7e7dfb04c93.tar.gz
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exynos: add g2d_scale_and_blend
This is a combination of g2d_copy_with_scale and g2d_scale. It is a pretty common operation to scale one buffer and then blend it on top of another, so provide a direct way to that operation. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Reviewed-by: Inki Dae <inki.dae@samsung.com> Tested-by: Joonyoung Shim <jy0922.shim@samsung.com>
Diffstat (limited to 'exynos')
-rw-r--r--exynos/exynos_fimg2d.c129
-rw-r--r--exynos/fimg2d.h5
2 files changed, 134 insertions, 0 deletions
diff --git a/exynos/exynos_fimg2d.c b/exynos/exynos_fimg2d.c
index 7a3da823..20c31790 100644
--- a/exynos/exynos_fimg2d.c
+++ b/exynos/exynos_fimg2d.c
@@ -638,3 +638,132 @@ g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
638 return 0; 638 return 0;
639} 639}
640 640
641/**
642 * g2d_scale_and_blend - apply scaling to source buffer and then blend to destination buffer
643 *
644 * @ctx: a pointer to g2d_context structure.
645 * @src: a pointer to g2d_image structure including image and buffer
646 * information to source.
647 * @dst: a pointer to g2d_image structure including image and buffer
648 * information to destination.
649 * @src_x: x start position to source buffer.
650 * @src_y: y start position to source buffer.
651 * @src_w: width value to source buffer.
652 * @src_h: height value to source buffer.
653 * @dst_x: x start position to destination buffer.
654 * @dst_y: y start position to destination buffer.
655 * @dst_w: width value to destination buffer.
656 * @dst_h: height value to destination buffer.
657 * @op: blend operation type.
658 */
659drm_public int
660g2d_scale_and_blend(struct g2d_context *ctx, struct g2d_image *src,
661 struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
662 unsigned int src_w, unsigned int src_h, unsigned int dst_x,
663 unsigned int dst_y, unsigned int dst_w, unsigned int dst_h,
664 enum e_g2d_op op)
665{
666 union g2d_point_val pt;
667 union g2d_bitblt_cmd_val bitblt;
668 union g2d_blend_func_val blend;
669 unsigned int scale;
670 unsigned int scale_x, scale_y;
671
672 bitblt.val = 0;
673 blend.val = 0;
674
675 if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
676 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
677 else
678 g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
679
680 g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
681 if (dst->buf_type == G2D_IMGBUF_USERPTR)
682 g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
683 (unsigned long)&dst->user_ptr[0]);
684 else
685 g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
686
687 g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
688
689 g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
690 g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
691
692 switch (src->select_mode) {
693 case G2D_SELECT_MODE_NORMAL:
694 if (src->buf_type == G2D_IMGBUF_USERPTR)
695 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
696 (unsigned long)&src->user_ptr[0]);
697 else
698 g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
699
700 g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
701 break;
702 case G2D_SELECT_MODE_FGCOLOR:
703 g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
704 break;
705 case G2D_SELECT_MODE_BGCOLOR:
706 g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
707 break;
708 default:
709 fprintf(stderr , "failed to set src.\n");
710 return -EINVAL;
711 }
712
713 if (src_w == dst_w && src_h == dst_h)
714 scale = 0;
715 else {
716 scale = 1;
717 scale_x = g2d_get_scaling(src_w, dst_w);
718 scale_y = g2d_get_scaling(src_h, dst_h);
719 }
720
721 if (src_x + src_w > src->width)
722 src_w = src->width - src_x;
723 if (src_y + src_h > src->height)
724 src_h = src->height - src_y;
725
726 if (dst_x + dst_w > dst->width)
727 dst_w = dst->width - dst_x;
728 if (dst_y + dst_h > dst->height)
729 dst_h = dst->height - dst_y;
730
731 if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
732 fprintf(stderr, "invalid width or height.\n");
733 g2d_reset(ctx);
734 return -EINVAL;
735 }
736
737 if (scale) {
738 g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
739 g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
740 g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
741 }
742
743 bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
744 blend.val = g2d_get_blend_op(op);
745 g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
746 g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
747
748 pt.val = 0;
749 pt.data.x = src_x;
750 pt.data.y = src_y;
751 g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
752 pt.val = 0;
753 pt.data.x = src_x + src_w;
754 pt.data.y = src_y + src_h;
755 g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
756
757 pt.val = 0;
758 pt.data.x = dst_x;
759 pt.data.y = dst_y;
760 g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
761 pt.val = 0;
762 pt.data.x = dst_x + dst_w;
763 pt.data.y = dst_y + dst_h;
764 g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
765
766 g2d_flush(ctx);
767
768 return 0;
769}
diff --git a/exynos/fimg2d.h b/exynos/fimg2d.h
index c6d67caf..f76f2a9f 100644
--- a/exynos/fimg2d.h
+++ b/exynos/fimg2d.h
@@ -314,4 +314,9 @@ int g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
314 struct g2d_image *dst, unsigned int src_x, 314 struct g2d_image *dst, unsigned int src_x,
315 unsigned int src_y, unsigned int dst_x, unsigned int dst_y, 315 unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
316 unsigned int w, unsigned int h, enum e_g2d_op op); 316 unsigned int w, unsigned int h, enum e_g2d_op op);
317int g2d_scale_and_blend(struct g2d_context *ctx, struct g2d_image *src,
318 struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
319 unsigned int src_w, unsigned int src_h, unsigned int dst_x,
320 unsigned int dst_y, unsigned int dst_w, unsigned int dst_h,
321 enum e_g2d_op op);
317#endif /* _FIMG2D_H_ */ 322#endif /* _FIMG2D_H_ */