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Add new asmdefs mechanism for exporting information only available to the C compiler for use in asm files, and use it in arm jpeg idct. See apps/apps.make, apps/core_asmdefs.c, and apps/recorder/jpeg_idct_arm.S for details.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21831 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andrew Mahone 2009-07-13 00:40:35 +00:00
parent 36eeecbe9a
commit 668a769ca4
6 changed files with 87 additions and 152 deletions
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17
apps/core_asmdefs.c Normal file
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#include <config.h>
#include <bmp.h>
/* To export a value for use in assembly files, define an int or unsigned here
* named AD_<name> and include apps/core_asmdefs.h in the assembly file.
* Identifiers without the AD_ prefix will be ignored, and can be used to
* create instances of structs for finding offsets to individual members.
*/
/* Size of a pixel with 8-bit components. */
const int AD_pix8_size =
#ifdef HAVE_LCD_COLOR
sizeof(struct uint8_rgb);
#else
1;
#endif