This change makes the code in graphics.c more descriptive and readable.
Especially, it makes expressions for scale calculation look what they
are meant to do. It also includes:
- Rename variables (struct fraction, dim_org, etc.) for more consistency
- Add more input validation (div-by-zero, etc.)
BUG=chromium:502066
BRANCH=master
TEST=Tested on Samus
CQ-DEPEND=CL:304860
Change-Id: I2694912bb7b6017d5655de2fd655b95432addb22
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 0863dc3ee925d3a05c83c66397b19a57f5478ef3
Original-Change-Id: Id8e349b8e09082fb84c3e1a984617f916e16c518
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/304861
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11928
Tested-by: build bot (Jenkins)
This change adds 'pivot' option to draw_bitmap. It controls the point of the
image based on which the image is positioned. For example, if a pivot is set
to the center of the image horizontally and vertically, the image is
positioned using pos_rel as the center of the image.
This feature is necessary, for example, to place a text image in the center
of the screen because each image has a different width depending on the
language.
This change also makes draw_bitmap accept both horizontal and vertical size.
If either of them is zero, the other non-zero value is used to derive the
size to keep the aspect ratio.
Specifying the height is necessary to keep font sizes the same when drawing
text images of different lengths.
draw_bitmap_direct is a variant of draw_bitmap and it draws an image using
a native coordinate and the original size (as opposed to the location and
the size relative to the canvas).
CL:303074 has real use cases.
BUG=none
BRANCH=tot
TEST=Tested on Samus
Change-Id: I5fde69fcb5cc9dc53e827dd9fcf001a0a32748d4
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 82a0a8b60808410652552ed3a888937724111584
Original-Change-Id: I0b0d9113ebecf14e8c70de7a3562b215f69f2d4c
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/302855
Reviewed-on: http://review.coreboot.org/11927
Tested-by: build bot (Jenkins)
This change replaces the current scaling algorithm (nearest neighbor) used
for bitmap rendering with the bilinear interpolation, which has much better
reproduction.
BUG=none
BRANCH=tot
TEST=Tested on Samus
Change-Id: I02520883debb7db40ffc19d4480244e0acabc818
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 764b383c1763a022728f2b2d9fb90e27c9e32e94
Original-Change-Id: I0ddd184343428904d04d8a76fe18a885529c7d3d
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/302195
Original-Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: http://review.coreboot.org/11926
Tested-by: build bot (Jenkins)
This change adds load_bitmap API, which loads a bitmap file from cbfs
and returns a pointer to the image data.
BUG=none
BRANCH=tot
TEST=Tested on Samus
Change-Id: I7d7874f6f68c414dc877a012ad96c393e42dc35e
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 9d33e713a0cf6bd1365418dad989e47e86db01e4
Original-Change-Id: Idbf9682c2fa9df3f0bd296ca47edd02cd09cfd01
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/302194
Original-Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: http://review.coreboot.org/11925
Tested-by: build bot (Jenkins)
This change allows draw_bitmap to draw an image outside the canvas
with the original size if the scale parameter is zero. This is used
for example when drawing a splash screen which has to be positioned
at a pixel perfect location.
BUG=none
BRANCH=master
TEST=Draw pictures and boxes on Samus and Ryu
Change-Id: Ia2d8799184d1aa192e2c50850e248bee8f234006
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 45d4717fe5c3e3554bd79b63ade490d88cf00bbe
Original-Change-Id: I48aa21122cfc2ee43bcb1b8f87b00c66abdc230e
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/295961
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11923
Tested-by: build bot (Jenkins)
draw_bitmap renders a bitmap image on screen with position and sizes
scaled relative to the screen. images are scaled up or down by nearest
neighbor interpolation.
BUG=chrome-os-partner:43444
BRANCH=tot
TEST=drew bitmap images on Samus
Change-Id: Ib599acc85b25626a6aed1fa9884ecd8e169bb860
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c910c9cdb7efc53aace067bd081aeefc07556811
Original-Reviewed-on: https://chromium-review.googlesource.com/290302
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Change-Id: Ib599acc85b25626a6aed1fa9884ecd8e169bb860
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/295532
Reviewed-on: http://review.coreboot.org/11584
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This change introduces cbgfx, a graphics library, which provides APIs for
drawing basic shapes, texts, graphic data, etc. on a screen.
BUG=chrome-os-partner:43444
BRANCH=tot
TEST=Drew boxes by draw command of depthcharge cli on Samus
Change-Id: I6019e5998e65dca3ab4785a90669b5db02463d2e
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Original-Commit-Id: 5b3ebce8eae91be742e4f977d3407d24e1537580
Original-Reviewed-on: https://chromium-review.googlesource.com/290301
Original-Reviewed-by: Stefan Reinauer <reinauer@google.com>
Original-Change-Id: I10db27715cb907bdc451a33ed99d257e3af241b7
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/291065
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11408
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Daisuke Nojiri