Godot: core/hq2x.cpp menghasilkan banyak peringatan

Saat mengkompilasi Godot dari awal, saya perhatikan bahwa setengah dari log build disebabkan oleh peringatan yang dihasilkan di core/hq2x.cpp . Lihat file terlampir untuk semua peringatan tersebut pada cabang master saat ini: godot_hq2x_warnings.txt

Kutipan:

g++ -o core/hq2x.x11.tools.64.o -c -g2 -Wall -DDEBUG_ENABLED -DDEBUG_MEMORY_ENABLED -DFREETYPE_ENABLED -DOC_X86_ASM -DDEBUG_MEMORY_ALLOC -DSCI_NAMESPACE -DENABLE_DEPRECATED -DOPENGL_ENABLED -DALSA_ENABLED -DJOYDEV_ENABLED -DPULSEAUDIO_ENABLED -DX11_ENABLED -DUNIX_ENABLED -DGLES2_ENABLED -DGLES_OVER_GL -DMUSEPACK_ENABLED -DSQUISH_ENABLED -DVORBIS_ENABLED -DOPUS_ENABLED -DTHEORA_ENABLED -DTHEORALIB_ENABLED -DPNG_ENABLED -DDDS_ENABLED -DPVR_ENABLED -DJPG_ENABLED -DWEBP_ENABLED -DSPEEX_ENABLED -DTOOLS_ENABLED -DGDSCRIPT_ENABLED -DMINIZIP_ENABLED -DXML_ENABLED -DETC1_ENABLED -DGLEW_ENABLED -DGLEW_STATIC -D_REENTRANT -Icore -Icore/math -Itools -Idrivers -I. -Iplatform/x11 -I/usr/include/freetype2 -I/usr/include/libpng16 -Icore core/hq2x.cpp
core/hq2x.cpp: In function 'uint32_t* hq2x_resize(const uint32_t*, uint32_t, uint32_t, uint32_t*, uint32_t, uint32_t, uint32_t, uint32_t, bool, bool)':
core/hq2x.cpp:102:112: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
  (((((C0 & MASK_A) >> 8) * W0 + ((C1 & MASK_A) >> 8) * W1 + ((C2 & MASK_A) >> 8) * W2) / (W0 + W1 + W2)) << 8) & MASK_A
                                                                                                                ^
core/hq2x.cpp:110:39: note: in expansion of macro 'HQX_MIX_3'
 #define MIX_00_4_3_1_2_1_1  *output = HQX_MIX_3(w[4],w[3],w[1],2U,1U,1U);
                                       ^
core/hq2x.cpp:340:6: note: in expansion of macro 'MIX_00_4_3_1_2_1_1'
      MIX_00_4_3_1_2_1_1
      ^
core/hq2x.cpp:102:112: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
  (((((C0 & MASK_A) >> 8) * W0 + ((C1 & MASK_A) >> 8) * W1 + ((C2 & MASK_A) >> 8) * W2) / (W0 + W1 + W2)) << 8) & MASK_A
                                                                                                                ^
core/hq2x.cpp:126:44: note: in expansion of macro 'HQX_MIX_3'
 #define MIX_01_4_1_5_2_1_1 *(output + 1) = HQX_MIX_3(w[4],w[1],w[5],2U,1U,1U);
                                            ^
core/hq2x.cpp:341:6: note: in expansion of macro 'MIX_01_4_1_5_2_1_1'
      MIX_01_4_1_5_2_1_1
      ^
core/hq2x.cpp:102:112: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
  (((((C0 & MASK_A) >> 8) * W0 + ((C1 & MASK_A) >> 8) * W1 + ((C2 & MASK_A) >> 8) * W2) / (W0 + W1 + W2)) << 8) & MASK_A
                                                                                                                ^
core/hq2x.cpp:147:51: note: in expansion of macro 'HQX_MIX_3'
 #define MIX_10_4_7_3_2_1_1 *(output + lineSize) = HQX_MIX_3(w[4],w[7],w[3],2U,1U,1U);
                                                   ^
core/hq2x.cpp:342:6: note: in expansion of macro 'MIX_10_4_7_3_2_1_1'
      MIX_10_4_7_3_2_1_1
      ^

File ini didasarkan pada https://github.com/brunexgeek/hqx/blob/master/source/HQ2x.cc , jadi idealnya kita harus membantu memperbaiki peringatan tersebut di hulu dan memperbarui salinan kita sendiri setelahnya. Jika ini tidak dapat dilakukan, kami dapat menambal versi kami secara langsung, tetapi akan mempersulit sinkronisasi perubahan dengan upstream.