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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>
main
Tobias Jakobi 2015-03-11 20:38:41 +01:00 committed by Emil Velikov
parent 6f950de953
commit 03c9cccfa0
2 changed files with 134 additions and 0 deletions
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129
exynos/exynos_fimg2d.c
View File

@ -638,3 +638,132 @@ g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
return 0;
}
/**
* g2d_scale_and_blend - apply scaling to source buffer and then blend to destination buffer
*
* @ctx: a pointer to g2d_context structure.
* @src: a pointer to g2d_image structure including image and buffer
* information to source.
* @dst: a pointer to g2d_image structure including image and buffer
* information to destination.
* @src_x: x start position to source buffer.
* @src_y: y start position to source buffer.
* @src_w: width value to source buffer.
* @src_h: height value to source buffer.
* @dst_x: x start position to destination buffer.
* @dst_y: y start position to destination buffer.
* @dst_w: width value to destination buffer.
* @dst_h: height value to destination buffer.
* @op: blend operation type.
*/
drm_public int
g2d_scale_and_blend(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
unsigned int src_w, unsigned int src_h, unsigned int dst_x,
unsigned int dst_y, unsigned int dst_w, unsigned int dst_h,
enum e_g2d_op op)
{
union g2d_point_val pt;
union g2d_bitblt_cmd_val bitblt;
union g2d_blend_func_val blend;
unsigned int scale;
unsigned int scale_x, scale_y;
bitblt.val = 0;
blend.val = 0;
if (op == G2D_OP_SRC || op == G2D_OP_CLEAR)
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_BGCOLOR);
else
g2d_add_cmd(ctx, DST_SELECT_REG, G2D_SELECT_MODE_NORMAL);
g2d_add_cmd(ctx, DST_COLOR_MODE_REG, dst->color_mode);
if (dst->buf_type == G2D_IMGBUF_USERPTR)
g2d_add_cmd(ctx, DST_BASE_ADDR_REG | G2D_BUF_USERPTR,
(unsigned long)&dst->user_ptr[0]);
else
g2d_add_cmd(ctx, DST_BASE_ADDR_REG, dst->bo[0]);
g2d_add_cmd(ctx, DST_STRIDE_REG, dst->stride);
g2d_add_cmd(ctx, SRC_SELECT_REG, src->select_mode);
g2d_add_cmd(ctx, SRC_COLOR_MODE_REG, src->color_mode);
switch (src->select_mode) {
case G2D_SELECT_MODE_NORMAL:
if (src->buf_type == G2D_IMGBUF_USERPTR)
g2d_add_cmd(ctx, SRC_BASE_ADDR_REG | G2D_BUF_USERPTR,
(unsigned long)&src->user_ptr[0]);
else
g2d_add_cmd(ctx, SRC_BASE_ADDR_REG, src->bo[0]);
g2d_add_cmd(ctx, SRC_STRIDE_REG, src->stride);
break;
case G2D_SELECT_MODE_FGCOLOR:
g2d_add_cmd(ctx, FG_COLOR_REG, src->color);
break;
case G2D_SELECT_MODE_BGCOLOR:
g2d_add_cmd(ctx, BG_COLOR_REG, src->color);
break;
default:
fprintf(stderr , "failed to set src.\n");
return -EINVAL;
}
if (src_w == dst_w && src_h == dst_h)
scale = 0;
else {
scale = 1;
scale_x = g2d_get_scaling(src_w, dst_w);
scale_y = g2d_get_scaling(src_h, dst_h);
}
if (src_x + src_w > src->width)
src_w = src->width - src_x;
if (src_y + src_h > src->height)
src_h = src->height - src_y;
if (dst_x + dst_w > dst->width)
dst_w = dst->width - dst_x;
if (dst_y + dst_h > dst->height)
dst_h = dst->height - dst_y;
if (src_w <= 0 || src_h <= 0 || dst_w <= 0 || dst_h <= 0) {
fprintf(stderr, "invalid width or height.\n");
g2d_reset(ctx);
return -EINVAL;
}
if (scale) {
g2d_add_cmd(ctx, SRC_SCALE_CTRL_REG, G2D_SCALE_MODE_BILINEAR);
g2d_add_cmd(ctx, SRC_XSCALE_REG, scale_x);
g2d_add_cmd(ctx, SRC_YSCALE_REG, scale_y);
}
bitblt.data.alpha_blend_mode = G2D_ALPHA_BLEND_MODE_ENABLE;
blend.val = g2d_get_blend_op(op);
g2d_add_cmd(ctx, BITBLT_COMMAND_REG, bitblt.val);
g2d_add_cmd(ctx, BLEND_FUNCTION_REG, blend.val);
pt.val = 0;
pt.data.x = src_x;
pt.data.y = src_y;
g2d_add_cmd(ctx, SRC_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = src_x + src_w;
pt.data.y = src_y + src_h;
g2d_add_cmd(ctx, SRC_RIGHT_BOTTOM_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x;
pt.data.y = dst_y;
g2d_add_cmd(ctx, DST_LEFT_TOP_REG, pt.val);
pt.val = 0;
pt.data.x = dst_x + dst_w;
pt.data.y = dst_y + dst_h;
g2d_add_cmd(ctx, DST_RIGHT_BOTTOM_REG, pt.val);
g2d_flush(ctx);
return 0;
}

5
exynos/fimg2d.h
View File

@ -314,4 +314,9 @@ int g2d_blend(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x,
unsigned int src_y, unsigned int dst_x, unsigned int dst_y,
unsigned int w, unsigned int h, enum e_g2d_op op);
int g2d_scale_and_blend(struct g2d_context *ctx, struct g2d_image *src,
struct g2d_image *dst, unsigned int src_x, unsigned int src_y,
unsigned int src_w, unsigned int src_h, unsigned int dst_x,
unsigned int dst_y, unsigned int dst_w, unsigned int dst_h,
enum e_g2d_op op);
#endif /* _FIMG2D_H_ */