rockbox/apps/recorder/resize.h, branch working

Adapt the resize-on-load image scalers to support the alpha channel.

2011-11-08T21:39:23+00:00

Now 32bit BMPs with alpha channel can be up- and downscaled without losing
transparency information.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30938 a1c6a512-1295-4272-9138-f99709370657

Fix yellow when building with HAVE_ALBUMART, without HAVE_JPEG/HAVE_BMP_SCALING.

2009-05-26T20:26:05+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21092 a1c6a512-1295-4272-9138-f99709370657

Use pre-multiplication in scaler to save one multiply per color component on ARM and Coldfire, at the cost of an extra add/shift in the horizontal scaler to reduce values to a workable range. SH-1 retains the same basic math, as

2009-05-26T20:00:47+00:00

the use of 16x16->32 hardware multiplication in the earlier scaler stages saves more than removing the 32x32->40 multiply to descale output.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21091 a1c6a512-1295-4272-9138-f99709370657

Split 8-bit-to-native conversion in bmp.c into a function, add support for plugging unscaled output in BMP and JPEG loaders, use output_row_8_native in JPEG decoder when possible.

2009-05-09T07:31:27+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20884 a1c6a512-1295-4272-9138-f99709370657

Move YUV->RGB in JPEG load from before scaler to after scaler. Required change to struct custom_format, so sorted the plugin API as well.

2009-05-06T04:53:56+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20856 a1c6a512-1295-4272-9138-f99709370657

Make JPEG and BMP scaler optional with HAVE_JPEG and HAVE_BMP_SCALING, both defined for all targets that have HAVE_ALBUMART. Disable JPEG in PictureFlow and pluginlib album art search with 32KiB plugin buffer until PictureFlow

2009-05-04T15:46:41+00:00

gets overlay support.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20851 a1c6a512-1295-4272-9138-f99709370657

Improve scaler reciprocal precision by 1 bit, and remove unused SC_NUM, SC_FIX, and SC_SHIFT.

2009-04-08T06:25:06+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20654 a1c6a512-1295-4272-9138-f99709370657

Get rid of a useless copy instruction in the SH1 32*32->64bit multiply routines (signed and unsigned).

2009-02-15T23:13:26+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20013 a1c6a512-1295-4272-9138-f99709370657

Add an unsigned 32*32->top32 bit multiply for resizing on SH1, and switch to 32 bit precision using that.

2009-02-15T17:07:18+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20012 a1c6a512-1295-4272-9138-f99709370657

Hopefully fix wrong colours on coldfire targets for certain scaling factors. EMAC needs to be in unsigned integer mode.

2009-01-25T15:59:43+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19853 a1c6a512-1295-4272-9138-f99709370657