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|
/*
* Cogl
*
* A Low-Level GPU Graphics and Utilities API
*
* Copyright (C) 2012 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*
*/
/* This file is included multiple times with different definitions for
the component_type type (either uint8_t or uint16_t). The code ends
up exactly the same for both but we only want to end up hitting the
16-bit path when one of the types in the conversion is > 8 bits per
component. */
/* Unpacking to RGBA */
#define UNPACK_1(b) ((b) * ((1 << (sizeof (component_type) * 8)) - 1))
#define UNPACK_2(b) (((b) * ((1 << (sizeof (component_type) * 8)) - 1) + \
1) / 3)
#define UNPACK_4(b) (((b) * ((1 << (sizeof (component_type) * 8)) - 1) + \
7) / 15)
#define UNPACK_5(b) (((b) * ((1 << (sizeof (component_type) * 8)) - 1) + \
15) / 31)
#define UNPACK_6(b) (((b) * ((1 << (sizeof (component_type) * 8)) - 1) + \
31) / 63)
#define UNPACK_10(b) (((b) * ((1 << (sizeof (component_type) * 8)) - 1) + \
511) / 1023)
inline static void
G_PASTE (_cogl_unpack_a_8_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = 0;
dst[1] = 0;
dst[2] = 0;
dst[3] = UNPACK_BYTE (*src);
dst += 4;
src++;
}
}
inline static void
G_PASTE (_cogl_unpack_rg_88_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[0]);
dst[1] = UNPACK_BYTE (src[1]);
dst[2] = 0;
dst[3] = UNPACK_BYTE (255);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_rgb_888_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[0]);
dst[1] = UNPACK_BYTE (src[1]);
dst[2] = UNPACK_BYTE (src[2]);
dst[3] = UNPACK_BYTE (255);
dst += 4;
src += 3;
}
}
inline static void
G_PASTE (_cogl_unpack_bgr_888_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[2]);
dst[1] = UNPACK_BYTE (src[1]);
dst[2] = UNPACK_BYTE (src[0]);
dst[3] = UNPACK_BYTE (255);
dst += 4;
src += 3;
}
}
inline static void
G_PASTE (_cogl_unpack_bgra_8888_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[2]);
dst[1] = UNPACK_BYTE (src[1]);
dst[2] = UNPACK_BYTE (src[0]);
dst[3] = UNPACK_BYTE (src[3]);
dst += 4;
src += 4;
}
}
inline static void
G_PASTE (_cogl_unpack_argb_8888_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[1]);
dst[1] = UNPACK_BYTE (src[2]);
dst[2] = UNPACK_BYTE (src[3]);
dst[3] = UNPACK_BYTE (src[0]);
dst += 4;
src += 4;
}
}
inline static void
G_PASTE (_cogl_unpack_abgr_8888_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[3]);
dst[1] = UNPACK_BYTE (src[2]);
dst[2] = UNPACK_BYTE (src[1]);
dst[3] = UNPACK_BYTE (src[0]);
dst += 4;
src += 4;
}
}
inline static void
G_PASTE (_cogl_unpack_rgba_8888_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
dst[0] = UNPACK_BYTE (src[0]);
dst[1] = UNPACK_BYTE (src[1]);
dst[2] = UNPACK_BYTE (src[2]);
dst[3] = UNPACK_BYTE (src[3]);
dst += 4;
src += 4;
}
}
inline static void
G_PASTE (_cogl_unpack_rgb_565_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint16_t v = *(const uint16_t *) src;
dst[0] = UNPACK_5 (v >> 11);
dst[1] = UNPACK_6 ((v >> 5) & 63);
dst[2] = UNPACK_5 (v & 31);
dst[3] = UNPACK_BYTE (255);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_rgba_4444_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint16_t v = *(const uint16_t *) src;
dst[0] = UNPACK_4 (v >> 12);
dst[1] = UNPACK_4 ((v >> 8) & 15);
dst[2] = UNPACK_4 ((v >> 4) & 15);
dst[3] = UNPACK_4 (v & 15);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_rgba_5551_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint16_t v = *(const uint16_t *) src;
dst[0] = UNPACK_5 (v >> 11);
dst[1] = UNPACK_5 ((v >> 6) & 31);
dst[2] = UNPACK_5 ((v >> 1) & 31);
dst[3] = UNPACK_1 (v & 1);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_rgba_1010102_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint32_t v = *(const uint32_t *) src;
dst[0] = UNPACK_10 (v >> 22);
dst[1] = UNPACK_10 ((v >> 12) & 1023);
dst[2] = UNPACK_10 ((v >> 2) & 1023);
dst[3] = UNPACK_2 (v & 3);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_bgra_1010102_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint32_t v = *(const uint32_t *) src;
dst[2] = UNPACK_10 (v >> 22);
dst[1] = UNPACK_10 ((v >> 12) & 1023);
dst[0] = UNPACK_10 ((v >> 2) & 1023);
dst[3] = UNPACK_2 (v & 3);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_argb_2101010_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint32_t v = *(const uint32_t *) src;
dst[3] = UNPACK_2 (v >> 30);
dst[0] = UNPACK_10 ((v >> 20) & 1023);
dst[1] = UNPACK_10 ((v >> 10) & 1023);
dst[2] = UNPACK_10 (v & 1023);
dst += 4;
src += 2;
}
}
inline static void
G_PASTE (_cogl_unpack_abgr_2101010_, component_size) (const uint8_t *src,
component_type *dst,
int width)
{
while (width-- > 0)
{
uint32_t v = *(const uint32_t *) src;
dst[3] = UNPACK_2 (v >> 30);
dst[2] = UNPACK_10 ((v >> 20) & 1023);
dst[1] = UNPACK_10 ((v >> 10) & 1023);
dst[0] = UNPACK_10 (v & 1023);
dst += 4;
src += 2;
}
}
#undef UNPACK_1
#undef UNPACK_2
#undef UNPACK_4
#undef UNPACK_5
#undef UNPACK_6
#undef UNPACK_10
inline static void
G_PASTE (_cogl_unpack_, component_size) (CoglPixelFormat format,
const uint8_t *src,
component_type *dst,
int width)
{
switch (format)
{
case COGL_PIXEL_FORMAT_A_8:
G_PASTE (_cogl_unpack_a_8_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RG_88:
G_PASTE (_cogl_unpack_rg_88_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGB_888:
G_PASTE (_cogl_unpack_rgb_888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_BGR_888:
G_PASTE (_cogl_unpack_bgr_888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_8888:
case COGL_PIXEL_FORMAT_RGBA_8888_PRE:
G_PASTE (_cogl_unpack_rgba_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_BGRA_8888:
case COGL_PIXEL_FORMAT_BGRA_8888_PRE:
G_PASTE (_cogl_unpack_bgra_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ARGB_8888:
case COGL_PIXEL_FORMAT_ARGB_8888_PRE:
G_PASTE (_cogl_unpack_argb_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ABGR_8888:
case COGL_PIXEL_FORMAT_ABGR_8888_PRE:
G_PASTE (_cogl_unpack_abgr_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGB_565:
G_PASTE (_cogl_unpack_rgb_565_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_4444:
case COGL_PIXEL_FORMAT_RGBA_4444_PRE:
G_PASTE (_cogl_unpack_rgba_4444_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_5551:
case COGL_PIXEL_FORMAT_RGBA_5551_PRE:
G_PASTE (_cogl_unpack_rgba_5551_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_1010102:
case COGL_PIXEL_FORMAT_RGBA_1010102_PRE:
G_PASTE (_cogl_unpack_rgba_1010102_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_BGRA_1010102:
case COGL_PIXEL_FORMAT_BGRA_1010102_PRE:
G_PASTE (_cogl_unpack_bgra_1010102_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ARGB_2101010:
case COGL_PIXEL_FORMAT_ARGB_2101010_PRE:
G_PASTE (_cogl_unpack_argb_2101010_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ABGR_2101010:
case COGL_PIXEL_FORMAT_ABGR_2101010_PRE:
G_PASTE (_cogl_unpack_abgr_2101010_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_DEPTH_16:
case COGL_PIXEL_FORMAT_DEPTH_32:
case COGL_PIXEL_FORMAT_DEPTH_24_STENCIL_8:
case COGL_PIXEL_FORMAT_ANY:
g_assert_not_reached ();
}
}
/* Packing from RGBA */
/* Pack and round to nearest */
#define PACK_SIZE(b, max) \
(((b) * (max) + (1 << (sizeof (component_type) * 8 - 1)) - 1) / \
((1 << (sizeof (component_type) * 8)) - 1))
#define PACK_1(b) PACK_SIZE (b, 1)
#define PACK_2(b) PACK_SIZE (b, 3)
#define PACK_4(b) PACK_SIZE (b, 15)
#define PACK_5(b) PACK_SIZE (b, 31)
#define PACK_6(b) PACK_SIZE (b, 63)
#define PACK_10(b) PACK_SIZE (b, 1023)
inline static void
G_PASTE (_cogl_pack_a_8_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
*dst = PACK_BYTE (src[3]);
src += 4;
dst++;
}
}
inline static void
G_PASTE (_cogl_pack_rg_88_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[0] = PACK_BYTE (src[0]);
dst[1] = PACK_BYTE (src[1]);
src += 4;
dst += 2;
}
}
inline static void
G_PASTE (_cogl_pack_rgb_888_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[0] = PACK_BYTE (src[0]);
dst[1] = PACK_BYTE (src[1]);
dst[2] = PACK_BYTE (src[2]);
src += 4;
dst += 3;
}
}
inline static void
G_PASTE (_cogl_pack_bgr_888_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[2] = PACK_BYTE (src[0]);
dst[1] = PACK_BYTE (src[1]);
dst[0] = PACK_BYTE (src[2]);
src += 4;
dst += 3;
}
}
inline static void
G_PASTE (_cogl_pack_bgra_8888_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[2] = PACK_BYTE (src[0]);
dst[1] = PACK_BYTE (src[1]);
dst[0] = PACK_BYTE (src[2]);
dst[3] = PACK_BYTE (src[3]);
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_argb_8888_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[1] = PACK_BYTE (src[0]);
dst[2] = PACK_BYTE (src[1]);
dst[3] = PACK_BYTE (src[2]);
dst[0] = PACK_BYTE (src[3]);
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_abgr_8888_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[3] = PACK_BYTE (src[0]);
dst[2] = PACK_BYTE (src[1]);
dst[1] = PACK_BYTE (src[2]);
dst[0] = PACK_BYTE (src[3]);
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_rgba_8888_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
dst[0] = PACK_BYTE (src[0]);
dst[1] = PACK_BYTE (src[1]);
dst[2] = PACK_BYTE (src[2]);
dst[3] = PACK_BYTE (src[3]);
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_rgb_565_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint16_t *v = (uint16_t *) dst;
*v = ((PACK_5 (src[0]) << 11) |
(PACK_6 (src[1]) << 5) |
PACK_5 (src[2]));
src += 4;
dst += 2;
}
}
inline static void
G_PASTE (_cogl_pack_rgba_4444_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint16_t *v = (uint16_t *) dst;
*v = ((PACK_4 (src[0]) << 12) |
(PACK_4 (src[1]) << 8) |
(PACK_4 (src[2]) << 4) |
PACK_4 (src[3]));
src += 4;
dst += 2;
}
}
inline static void
G_PASTE (_cogl_pack_rgba_5551_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint16_t *v = (uint16_t *) dst;
*v = ((PACK_5 (src[0]) << 11) |
(PACK_5 (src[1]) << 6) |
(PACK_5 (src[2]) << 1) |
PACK_1 (src[3]));
src += 4;
dst += 2;
}
}
inline static void
G_PASTE (_cogl_pack_rgba_1010102_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint32_t *v = (uint32_t *) dst;
*v = ((PACK_10 (src[0]) << 22) |
(PACK_10 (src[1]) << 12) |
(PACK_10 (src[2]) << 2) |
PACK_2 (src[3]));
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_bgra_1010102_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint32_t *v = (uint32_t *) dst;
*v = ((PACK_10 (src[2]) << 22) |
(PACK_10 (src[1]) << 12) |
(PACK_10 (src[0]) << 2) |
PACK_2 (src[3]));
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_argb_2101010_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint32_t *v = (uint32_t *) dst;
*v = ((PACK_2 (src[3]) << 30) |
(PACK_10 (src[0]) << 20) |
(PACK_10 (src[1]) << 10) |
PACK_10 (src[2]));
src += 4;
dst += 4;
}
}
inline static void
G_PASTE (_cogl_pack_abgr_2101010_, component_size) (const component_type *src,
uint8_t *dst,
int width)
{
while (width-- > 0)
{
uint32_t *v = (uint32_t *) dst;
*v = ((PACK_2 (src[3]) << 30) |
(PACK_10 (src[2]) << 20) |
(PACK_10 (src[1]) << 10) |
PACK_10 (src[0]));
src += 4;
dst += 4;
}
}
#undef PACK_SIZE
#undef PACK_1
#undef PACK_2
#undef PACK_4
#undef PACK_5
#undef PACK_6
#undef PACK_10
inline static void
G_PASTE (_cogl_pack_, component_size) (CoglPixelFormat format,
const component_type *src,
uint8_t *dst,
int width)
{
switch (format)
{
case COGL_PIXEL_FORMAT_A_8:
G_PASTE (_cogl_pack_a_8_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RG_88:
G_PASTE (_cogl_pack_rg_88_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGB_888:
G_PASTE (_cogl_pack_rgb_888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_BGR_888:
G_PASTE (_cogl_pack_bgr_888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_8888:
case COGL_PIXEL_FORMAT_RGBA_8888_PRE:
G_PASTE (_cogl_pack_rgba_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_BGRA_8888:
case COGL_PIXEL_FORMAT_BGRA_8888_PRE:
G_PASTE (_cogl_pack_bgra_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ARGB_8888:
case COGL_PIXEL_FORMAT_ARGB_8888_PRE:
G_PASTE (_cogl_pack_argb_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ABGR_8888:
case COGL_PIXEL_FORMAT_ABGR_8888_PRE:
G_PASTE (_cogl_pack_abgr_8888_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGB_565:
G_PASTE (_cogl_pack_rgb_565_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_4444:
case COGL_PIXEL_FORMAT_RGBA_4444_PRE:
G_PASTE (_cogl_pack_rgba_4444_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_5551:
case COGL_PIXEL_FORMAT_RGBA_5551_PRE:
G_PASTE (_cogl_pack_rgba_5551_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_RGBA_1010102:
case COGL_PIXEL_FORMAT_RGBA_1010102_PRE:
G_PASTE (_cogl_pack_rgba_1010102_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_BGRA_1010102:
case COGL_PIXEL_FORMAT_BGRA_1010102_PRE:
G_PASTE (_cogl_pack_bgra_1010102_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ARGB_2101010:
case COGL_PIXEL_FORMAT_ARGB_2101010_PRE:
G_PASTE (_cogl_pack_argb_2101010_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_ABGR_2101010:
case COGL_PIXEL_FORMAT_ABGR_2101010_PRE:
G_PASTE (_cogl_pack_abgr_2101010_, component_size) (src, dst, width);
break;
case COGL_PIXEL_FORMAT_DEPTH_16:
case COGL_PIXEL_FORMAT_DEPTH_32:
case COGL_PIXEL_FORMAT_DEPTH_24_STENCIL_8:
case COGL_PIXEL_FORMAT_ANY:
g_assert_not_reached ();
}
}
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