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- Added blitters for BGR 555 mode

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This commit is contained in:
gbeauche 2001-01-31 21:28:58 +00:00
parent 9b2ed3594e
commit e8862d8cbe
1 changed files with 61 additions and 6 deletions
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67
BasiliskII/src/Unix/video_blit.cpp
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@ -67,8 +67,59 @@ static void Blit_Copy_Raw(uint8 * dest, const uint8 * source, uint32 length)
/* --- BGR 555 --- */
/* -------------------------------------------------------------------------- */
// TODO: BGR 555 (SGI/Irix)
// R/G/B mask values: 0x001f, 0x03e0, 0x7c00
#ifdef WORDS_BIGENDIAN
// Native byte order
#define FB_BLIT_1(dst, src) \
(dst = (((src) >> 10) & 0x001f) | ((src) & 0x03e0) | (((src) << 10) & 0x7c00))
#define FB_BLIT_2(dst, src) \
(dst = (((src) >> 10) & 0x001f001f) | ((src) & 0x03e003e0) | (((src) << 10) & 0x7c007c00))
#define FB_DEPTH 15
#define FB_FUNC_NAME Blit_BGR555_NBO
#include "video_blit.h"
// Opposite byte order (untested)
#define FB_BLIT_1(dst, src) \
(dst = (((src) >> 2) & 0x1f00) | (((src) >> 8) & 3) | (((src) << 8) & 0xe000) | (((src) << 2) & 0x7c))
#define FB_BLIT_2(dst, src) \
(dst = (((src) >> 2) & 0x1f001f00) | (((src) >> 8) & 0x30003) | (((src) << 8) & 0xe000e000) | (((src) << 2) & 0x7c007c))
#define FB_DEPTH 15
#define FB_FUNC_NAME Blit_BGR555_OBO
#include "video_blit.h"
#else
// Native byte order (untested)
#define FB_BLIT_1(dst, src) \
(dst = (((src) >> 2) & 0x1f) | (((src) >> 8) & 0xe0) | (((src) << 8) & 0x0300) | (((src) << 2) & 0x7c00))
#define FB_BLIT_2(dst, src) \
(dst = (((src) >> 2) & 0x1f001f) | (((src) >> 8) & 0xe000e0) | (((src) << 8) & 0x03000300) | (((src) << 2) & 0x7c007c00))
#define FB_DEPTH 15
#define FB_FUNC_NAME Blit_BGR555_NBO
#include "video_blit.h"
// Opposite byte order (untested)
#define FB_BLIT_1(dst, src) \
(dst = (((src) << 6) & 0x1f00) | ((src) & 0xe003) | (((src) >> 6) & 0x7c))
#define FB_BLIT_2(dst, src) \
(dst = (((src) << 6) & 0x1f001f00) | ((src) & 0xe003e003) | (((src) >> 6) & 0x7c007c))
#define FB_DEPTH 15
#define FB_FUNC_NAME Blit_BGR555_OBO
#include "video_blit.h"
#endif
/* -------------------------------------------------------------------------- */
/* --- RGB 565 --- */
@ -168,7 +219,7 @@ static void Blit_Copy_Raw(uint8 * dest, const uint8 * source, uint32 length)
/* --- BGR 888 --- */
/* -------------------------------------------------------------------------- */
// Native byte order (untested)
// Native byte order [BE] (untested)
#ifdef WORDS_BIGENDIAN
@ -181,6 +232,8 @@ static void Blit_Copy_Raw(uint8 * dest, const uint8 * source, uint32 length)
#else
// Opposite byte order [LE] (untested)
#define FB_BLIT_2(dst, src) \
(dst = (((src) >> 16) & 0xff) | ((src) & 0xff0000) | (((src) & 0xff) << 16))
@ -190,7 +243,7 @@ static void Blit_Copy_Raw(uint8 * dest, const uint8 * source, uint32 length)
#endif
// Opposite byte order (untested)
// Opposite byte order [BE] (untested) / Native byte order [LE] (untested)
#ifdef WORDS_BIGENDIAN
# define FB_FUNC_NAME Blit_BGR888_OBO
@ -229,15 +282,17 @@ static Screen_blit_func_info Screen_blitters[] = {
{ 1, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // NT
{ 8, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // OK (NBO)
{ 15, 0x007c00, 0x0003e0, 0x00001f, Blit_Copy_Raw , Blit_RGB555_OBO }, // OK (OBO)
{ 15, 0x00001f, 0x0003e0, 0x007c00, Blit_BGR555_NBO , Blit_BGR555_OBO }, // NT
{ 16, 0x00f800, 0x0007e0, 0x00001f, Blit_RGB565_NBO , Blit_RGB565_OBO }, // OK (OBO)
{ 24, 0xff0000, 0x00ff00, 0x0000ff, Blit_Copy_Raw , Blit_RGB888_OBO }, // OK (OBO)
{ 24, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT
{ 32, 0xff0000, 0x00ff00, 0x0000ff, Blit_Copy_Raw , Blit_RGB888_OBO }, // OK (OBO)
{ 32, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO } // NT
{ 32, 0xff0000, 0x00ff00, 0x0000ff, Blit_Copy_Raw , Blit_RGB888_OBO }, // OK
{ 32, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO } // OK
#else
{ 1, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // NT
{ 8, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // OK (NBO)
{ 15, 0x007c00, 0x0003e0, 0x00001f, Blit_RGB555_NBO , Blit_Copy_Raw }, // OK (NBO)
{ 15, 0x00001f, 0x0003e0, 0x007c00, Blit_BGR555_NBO , Blit_BGR555_OBO }, // NT
{ 16, 0x00f800, 0x0007e0, 0x00001f, Blit_RGB565_NBO , Blit_RGB565_OBO }, // OK (NBO)
{ 24, 0xff0000, 0x00ff00, 0x0000ff, Blit_RGB888_NBO , Blit_Copy_Raw }, // OK (NBO)
{ 24, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT