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Evas rg_etc: Show in the doc that we use BGRA now

This commit is contained in:
Jean-Philippe Andre 2014-05-08 10:48:35 +09:00
parent 939b5e47a0
commit 1aa3510666
1 changed files with 6 additions and 5 deletions
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11
src/static_libs/rg_etc/rg_etc1.h
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@ -24,17 +24,18 @@ typedef struct
{
rg_etc1_quality m_quality;
bool m_dithering;
}rg_etc1_pack_params;
} rg_etc1_pack_params;
// Important: pack_etc1_block_init() must be called before calling pack_etc1_block().
// pack_etc1_block_init() should be called before calling pack_etc1_block(),
// Otherwise rg_etc1_pack_block() will call rg_etc1_pack_block_init() for you.
void rg_etc1_pack_block_init();
// Packs a 4x4 block of 32bpp RGBA pixels to an 8-byte ETC1 block.
// 32-bit RGBA pixels must always be arranged as (R,G,B,A) (R first, A last) in memory, independent of platform endianness. A should always be 255.
// Packs a 4x4 block of 32bpp BGRA pixels to an 8-byte ETC1 block.
// 32-bit BGRA pixels must always be arranged as (B,G,R,A) (B first, A last) in memory, independent of platform endianness. A should always be 255.
// Returns squared error of result.
// This function is thread safe, and does not dynamically allocate any memory.
// pack_etc1_block() does not currently support "perceptual" colorspace metrics - it primarily optimizes for RGB RMSE.
unsigned int rg_etc1_pack_block(void* pETC1_block, const unsigned int* pSrc_pixels_rgba, rg_etc1_pack_params *pack_params);
unsigned int rg_etc1_pack_block(void* pETC1_block, const unsigned int* pSrc_pixels_BGRA, rg_etc1_pack_params *pack_params);
// ETC2 support: RGB8_ETC2
void rg_etc2_rgb8_decode_block(const uint8_t *etc_block, uint32_t *bgra);