fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-08 04:48:08 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

mesa: Add a helper function to query 3D block sizes

Browse source 
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Anuj Phogat 2016-03-09 11:38:54 -08:00
parent 6abb1b4984
commit 9163c37349
2 changed files with 25 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
src/mesa/main/formats.c
View file

@ -320,6 +320,27 @@ _mesa_get_format_block_size(mesa_format format, GLuint *bw, GLuint *bh)
}
/**
* Return the block size (in pixels) for the given format. Normally
* the block size is 1x1x1. But compressed formats will have block
* sizes of 4x4x4, 3x3x3 pixels, etc.
* \param bw returns block width in pixels
* \param bh returns block height in pixels
* \param bd returns block depth in pixels
*/
void
_mesa_get_format_block_size_3d(mesa_format format,
GLuint *bw,
GLuint *bh,
GLuint *bd)
{
const struct gl_format_info *info = _mesa_get_format_info(format);
*bw = info->BlockWidth;
*bh = info->BlockHeight;
*bd = info->BlockDepth;
}
/**
* Returns the an array of four numbers representing the transformation
* from the RGBA or SZ colorspace to the given format. For array formats,

4
src/mesa/main/formats.h
View file

@ -663,6 +663,10 @@ _mesa_get_format_base_format(uint32_t format);
extern void
_mesa_get_format_block_size(mesa_format format, GLuint *bw, GLuint *bh);
extern void
_mesa_get_format_block_size_3d(mesa_format format, GLuint *bw,
GLuint *bh, GLuint *bd);
extern mesa_array_format
_mesa_array_format_flip_channels(mesa_array_format format);