With LCD driver all calculation will be performed on RGB888 and the hardware/OS
can display from our 24bit framebuffer.
It is not yet as performance optimized as the existing drivers but should be
good enough.The vast number of small changes is due to the fact that
fb_data can be a struct type now, while most of the code expected a scalar type.
lcd-as-memframe ASM code does not work with 24bit currently so the with 24bit
it enforces the generic C code.
All plugins are ported over. Except for rockpaint. It uses so much memory that
it wouldnt fit into the 512k plugin buffer anymore (patches welcome).
Change-Id: Ibb1964545028ce0d8ff9833ccc3ab66be3ee0754
The code expected the color table at offset 54 (14+size of BITMAPINFOHEADER),
which was after the BITMAPINFOHEADER header. However, newer BITMAPINFOHEADER
versions exist which have more fields before the color table. Fix this by
explicitely seeking to the color table.
Change-Id: If1dfc77e7485e5a9e0bc0e7f577152da9358bd71
This reverts commit 61a096499b.
The original issue was caused by a new structure member which caused
bmp_args::buf to be unaligned for 2-byte reads. Enforcing that alignment
should be the faster fix. Aligning to cache (while at it) should
improve bmp loading times even more.
Change-Id: I58a2caaf08c0ce46e2fb9666de628a30a36ea5f4
The comment about the format was actually incorrect. The alpha information
is now negated during conversion to native format, according to the
corrected comment.
Change-Id: Ifdb9ffdf9b55e39e64983eec2d9d60339e570bd9
This is what gimp does when opening such a file.
Tt saves the alpha channel with all-0xff, but other programs might use 0x00.
As a fully transparent image doesn't make sense this should be OK.
Also split the 32bit and 24bit case in the bmp reader, they're sufficiently different.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30968 a1c6a512-1295-4272-9138-f99709370657
For images, rows need to be even (this is not true for anti-aliased font files).
Fix stride and size calculation. This makes images that have odd pixel rows display properly and fixes buffer overflows.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30966 a1c6a512-1295-4272-9138-f99709370657
This uses the alpha blending capabilities introduced with anti-aliased fonts
to draw bitmaps with transparency information. The bmp loader is extended to read
this information (pass FORMAT_TRANSPARENT in format). The alpha information will
be used when drawing the bitmap.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30937 a1c6a512-1295-4272-9138-f99709370657
* changed bmp.c so that it loads bitmap larger than LCD correctly.
* removed bmp entry form inbuilt_filetypes in filetypes.c so that bmp files will be opened with bmp viewer when selected in browser.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24754 a1c6a512-1295-4272-9138-f99709370657
wrapper C files in pluginlib renamed to the same name as the core files they
wrap
pluginlib-only init functions for resize and bmp moved into the wrapper files,
and declared in the associated header files
API() macro removed entirely, in favor of a core-only header file that
redefines core function names to use a plugin_api pointer
some unnecessary uses of PLUGIN in apps/recorder/bmp.c removed
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19712 a1c6a512-1295-4272-9138-f99709370657
pluginlib for use with greylib, and add source for a test scaled bmp
viewer using greylib.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19593 a1c6a512-1295-4272-9138-f99709370657
Macros for calculating size needed for bitmap load and scaling, so that
these can be compile-time constant when their inputs are.
Reduce size of bayer dither by chopping all but first row of dither
matrix, and replacing 2D lookup with 1D lookup and small calculation.
Move some functions not related to actual bmp file loading out of bmp.c.
A smaller brightness() for mono targets, and a higher-quality one for
greyscale targets, both replacing the division by 10 with a shift.
Port of the linear and area scalers to greyscale targets, this costs
some binsize but produces better output even when dithered to 2bpp.
Move duplicated row output code from inside vertical scalers to a
separate row output function.
Move some multiplies out of the line scaler, for a small speedup and
code size reduction, as well as a small improvement in accuracy for the
upscaling case.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19592 a1c6a512-1295-4272-9138-f99709370657
