shenleiandClaude Opus 5
5fad769ee8
The embedded 40250 script layer needs its own interpreter on five platforms. 2.7 is end-of-life, so nothing can be fetched from the target SDKs and the source is vendored (official 2.7.18 tarball, trimmed to 25MB; Lib/ stays for step 3's python27.zip). cpython-2.7.18/CMakeLists.txt builds one `mtpython` static library from exactly the 133 objects the reference libpython2.7.a contains, off by default behind -DMTGODOT_EMBED_PYTHON=ON. The source list and the built-in module table (config/config.c, 39 entries) are shared; pyconfig.h is a probe result and is not, so each platform keeps its own under config/<platform>/, regenerated by tools/py_embed/gen_pyconfig.sh and checked against the shared table. Three vendor patches, documented in docs/THIRD-PARTY.md: configure/configure.ac learn arm64 on macOS, and posixmodule.c undefines the process-control calls it hard-defines past pyconfig.h when building for iOS. macOS (ctest python.embed: every builtin imports, codecs and pickle work off the vendored Lib/), Android arm64 and iOS arm64 build. Linux needs a Linux host and Windows needs a MinGW-vs-MSVC decision; both are noted for step 4. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
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#ifndef Py_YUV_H
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#define Py_YUV_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* SVideo YUV 4:1:1 format.
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*
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* 4 consecutive quadwords describe 8 pixels on 2 lines, as depicted
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* below. An array of (width/4) of the below structure describes 2
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* scan lines.
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*
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* +-------------------+
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* | 00 | 01 | 02 | 03 | . . .
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* +-------------------+
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* | 10 | 11 | 12 | 13 | . . .
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* +-------------------+
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*/
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struct yuv411 {
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struct {
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unsigned int dummy:8;
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unsigned int y0:8;
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unsigned int u0:2;
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unsigned int v0:2;
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unsigned int y1:8;
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unsigned int u1:2;
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unsigned int v1:2;
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} v[4];
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};
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#define YUV411_Y00(y) (y).v[0].y0
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#define YUV411_Y01(y) (y).v[1].y0
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#define YUV411_Y02(y) (y).v[2].y0
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#define YUV411_Y03(y) (y).v[3].y0
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#define YUV411_Y10(y) (y).v[0].y1
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#define YUV411_Y11(y) (y).v[1].y1
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#define YUV411_Y12(y) (y).v[2].y1
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#define YUV411_Y13(y) (y).v[3].y1
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#define YUV411_U00(y) ((y).v[0].u0<<6|(y).v[1].u0<<4|(y).v[2].u0<<2|(y).v[3].u0)
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#define YUV411_U01(y) YUV411_U00(y)
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#define YUV411_U02(y) YUV411_U00(y)
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#define YUV411_U03(y) YUV411_U00(y)
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#define YUV411_U10(y) ((y).v[0].u1<<6|(y).v[1].u1<<4|(y).v[2].u1<<2|(y).v[3].u1)
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#define YUV411_U11(y) YUV411_U10(y)
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#define YUV411_U12(y) YUV411_U10(y)
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#define YUV411_U13(y) YUV411_U10(y)
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#define YUV411_V00(y) ((y).v[0].v0<<6|(y).v[1].v0<<4|(y).v[2].v0<<2|(y).v[3].v0)
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#define YUV411_V01(y) YUV411_V00(y)
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#define YUV411_V02(y) YUV411_V00(y)
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#define YUV411_V03(y) YUV411_V00(y)
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#define YUV411_V10(y) ((y).v[0].v1<<6|(y).v[1].v1<<4|(y).v[2].v1<<2|(y).v[3].v1)
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#define YUV411_V11(y) YUV411_V10(y)
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#define YUV411_V12(y) YUV411_V10(y)
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#define YUV411_V13(y) YUV411_V10(y)
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/*
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* Compression Library YUV 4:2:2 format.
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*
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* 1 longword describes 2 pixels.
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*
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* +-------+
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* | 0 | 1 |
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* +-------+
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*/
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struct yuv422 {
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unsigned int u:8;
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unsigned int y0:8;
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unsigned int v:8;
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unsigned int y1:8;
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};
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#define YUV422_Y0(y) (y).y0
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#define YUV422_Y1(y) (y).y1
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#define YUV422_U0(y) (y).u
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#define YUV422_U1(y) (y).u
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#define YUV422_V0(y) (y).v
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#define YUV422_V1(y) (y).v
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/*
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* Compression library YUV 4:2:2 Duplicate Chroma format.
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*
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* This is like the previous format, but the U and V values are
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* duplicated vertically (and hence there is some redundancy in the
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* data). With other words, lines 2*n and 2*n+1 have the same U and V
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* values but different Y values.
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*/
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/*
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* Conversion functions.
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*/
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void yuv_sv411_to_cl422dc(int, void *, void *, int, int);
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void yuv_sv411_to_cl422dc_quartersize(int, void *, void *, int, int);
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void yuv_sv411_to_cl422dc_sixteenthsize(int, void *, void *, int, int);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_YUV_H */
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