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* grub-core/video/fb/video_fb.c: Merge two blit functions

Browse source 
into one.
This commit is contained in:
Vladimir Testov 2013-11-05 21:46:16 +04:00
parent 810f991b9e
commit 339eacce1b
2 changed files with 42 additions and 104 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
2013-11-05 Vladimir Testov <vladimir.testov@rosalab.ru>
* grub-core/video/fb/video_fb.c: Merge two blit functions
into one.
2013-11-05 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/term/terminfo.c: Add sequences for home and end.

129
grub-core/video/fb/video_fb.c
View file

@ -753,13 +753,12 @@ grub_video_fb_fill_rect (grub_video_color_t color, int x, int y,
return GRUB_ERR_NONE;
}
grub_err_t
grub_video_fb_blit_bitmap (struct grub_video_bitmap *bitmap,
static inline grub_err_t __attribute__ ((always_inline))
grub_video_fb_blit_source (struct grub_video_fbblit_info *source,
enum grub_video_blit_operators oper, int x, int y,
int offset_x, int offset_y,
unsigned int width, unsigned int height)
{
struct grub_video_fbblit_info source;
struct grub_video_fbblit_info target;
/* Make sure there is something to do. */
@ -769,14 +768,14 @@ grub_video_fb_blit_bitmap (struct grub_video_bitmap *bitmap,
return GRUB_ERR_NONE;
if ((y >= (int)framebuffer.render_target->viewport.height) || (y + (int)height < 0))
return GRUB_ERR_NONE;
if ((x + (int)bitmap->mode_info.width) < 0)
if ((x + (int)source->mode_info->width) < 0)
return GRUB_ERR_NONE;
if ((y + (int)bitmap->mode_info.height) < 0)
if ((y + (int)source->mode_info->height) < 0)
return GRUB_ERR_NONE;
if ((offset_x >= (int)bitmap->mode_info.width)
if ((offset_x >= (int)source->mode_info->width)
|| (offset_x + (int)width < 0))
return GRUB_ERR_NONE;
if ((offset_y >= (int)bitmap->mode_info.height)
if ((offset_y >= (int)source->mode_info->height)
|| (offset_y + (int)height < 0))
return GRUB_ERR_NONE;
@ -815,36 +814,48 @@ grub_video_fb_blit_bitmap (struct grub_video_bitmap *bitmap,
if ((y + height) > framebuffer.render_target->viewport.height)
height = framebuffer.render_target->viewport.height - y;
if ((offset_x + width) > bitmap->mode_info.width)
width = bitmap->mode_info.width - offset_x;
if ((offset_y + height) > bitmap->mode_info.height)
height = bitmap->mode_info.height - offset_y;
if ((offset_x + width) > source->mode_info->width)
width = source->mode_info->width - offset_x;
if ((offset_y + height) > source->mode_info->height)
height = source->mode_info->height - offset_y;
/* Limit drawing to source render target dimensions. */
if (width > bitmap->mode_info.width)
width = bitmap->mode_info.width;
if (width > source->mode_info->width)
width = source->mode_info->width;
if (height > bitmap->mode_info.height)
height = bitmap->mode_info.height;
if (height > source->mode_info->height)
height = source->mode_info->height;
/* Add viewport offset. */
x += framebuffer.render_target->viewport.x;
y += framebuffer.render_target->viewport.y;
/* Use fbblit_info to encapsulate rendering. */
source.mode_info = &bitmap->mode_info;
source.data = bitmap->data;
target.mode_info = &framebuffer.render_target->mode_info;
target.data = framebuffer.render_target->data;
/* Do actual blitting. */
dirty (y, height);
grub_video_fb_dispatch_blit (&target, &source, oper, x, y, width, height,
grub_video_fb_dispatch_blit (&target, source, oper, x, y, width, height,
offset_x, offset_y);
return GRUB_ERR_NONE;
}
grub_err_t
grub_video_fb_blit_bitmap (struct grub_video_bitmap *bitmap,
enum grub_video_blit_operators oper, int x, int y,
int offset_x, int offset_y,
unsigned int width, unsigned int height)
{
struct grub_video_fbblit_info source_info;
source_info.mode_info = &bitmap->mode_info;
source_info.data = bitmap->data;
return grub_video_fb_blit_source (&source_info, oper, x, y,
offset_x, offset_y, width, height);
}
grub_err_t
grub_video_fb_blit_render_target (struct grub_video_fbrender_target *source,
enum grub_video_blit_operators oper,
@ -852,89 +863,11 @@ grub_video_fb_blit_render_target (struct grub_video_fbrender_target *source,
unsigned int width, unsigned int height)
{
struct grub_video_fbblit_info source_info;
struct grub_video_fbblit_info target_info;
/* Make sure there is something to do. */
if ((width == 0) || (height == 0))
return GRUB_ERR_NONE;
if ((x >= (int)framebuffer.render_target->viewport.width) || (x + (int)width < 0))
return GRUB_ERR_NONE;
if ((y >= (int)framebuffer.render_target->viewport.height) || (y + (int)height < 0))
return GRUB_ERR_NONE;
if ((x + (int)source->mode_info.width) < 0)
return GRUB_ERR_NONE;
if ((y + (int)source->mode_info.height) < 0)
return GRUB_ERR_NONE;
if ((offset_x >= (int)source->mode_info.width)
|| (offset_x + (int)width < 0))
return GRUB_ERR_NONE;
if ((offset_y >= (int)source->mode_info.height)
|| (offset_y + (int)height < 0))
return GRUB_ERR_NONE;
/* If we have negative coordinates, optimize drawing to minimum. */
if (offset_x < 0)
{
width += offset_x;
x -= offset_x;
offset_x = 0;
}
if (offset_y < 0)
{
height += offset_y;
y -= offset_y;
offset_y = 0;
}
if (x < 0)
{
width += x;
offset_x -= x;
x = 0;
}
if (y < 0)
{
height += y;
offset_y -= y;
y = 0;
}
/* Do not allow drawing out of viewport. */
if ((x + width) > framebuffer.render_target->viewport.width)
width = framebuffer.render_target->viewport.width - x;
if ((y + height) > framebuffer.render_target->viewport.height)
height = framebuffer.render_target->viewport.height - y;
if ((offset_x + width) > source->mode_info.width)
width = source->mode_info.width - offset_x;
if ((offset_y + height) > source->mode_info.height)
height = source->mode_info.height - offset_y;
/* Limit drawing to source render target dimensions. */
if (width > source->mode_info.width)
width = source->mode_info.width;
if (height > source->mode_info.height)
height = source->mode_info.height;
/* Add viewport offset. */
x += framebuffer.render_target->viewport.x;
y += framebuffer.render_target->viewport.y;
/* Use fbblit_info to encapsulate rendering. */
source_info.mode_info = &source->mode_info;
source_info.data = source->data;
target_info.mode_info = &framebuffer.render_target->mode_info;
target_info.data = framebuffer.render_target->data;
/* Do actual blitting. */
dirty (y, height);
grub_video_fb_dispatch_blit (&target_info, &source_info, oper, x, y, width, height,
offset_x, offset_y);
return GRUB_ERR_NONE;
return grub_video_fb_blit_source (&source_info, oper, x, y,
offset_x, offset_y, width, height);
}
grub_err_t