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comparison src/glslang/glslang.nim @ 0:5daf3f236d87

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add: initial version
author Sam <sam@basx.dev>
date Wed, 14 Dec 2022 00:49:35 +0700
parents
children bb2a7d3a7003
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equal deleted inserted replaced
-1:000000000000 0:5daf3f236d87
1 # required to link the GLSL compiler
2 {.passl: "-Lthirdparty/glslang/lib/" .}
3 {.passl: "-Lthirdparty/spirv-tools/lib/" .}
4
5 {.passl: "-lglslang" .}
6 {.passl: "-lglslang-default-resource-limits" .}
7 {.passl: "-lHLSL" .}
8 {.passl: "-lMachineIndependent" .}
9 {.passl: "-lGenericCodeGen" .}
10 {.passl: "-lOSDependent" .}
11 {.passl: "-lOGLCompiler" .}
12 {.passl: "-lSPIRV" .}
13 {.passl: "-lSPIRV-Tools-opt" .}
14
15 {.passl: "-lSPIRV-Tools" .}
16 {.passl: "-lSPIRV-Tools-diff" .}
17 {.passl: "-lSPIRV-Tools-fuzz" .}
18 {.passl: "-lSPIRV-Tools-link" .}
19 {.passl: "-lSPIRV-Tools-lint" .}
20 {.passl: "-lSPIRV-Tools-opt" .}
21 {.passl: "-lSPIRV-Tools-reduce" .}
22
23 {.passl: "-lstdc++" .}
24 {.passl: "-lm" .}
25
26 import glslang_c_interface
27 import glslang_c_shader_types
28
29
30 proc compileShaderToSPIRV_Vulkan*(stage: glslang_stage_t , shaderSource: string, fileName: string): seq[uint32] =
31 var input = glslang_input_t(
32 language: GLSLANG_SOURCE_GLSL,
33 stage: stage,
34 client: GLSLANG_CLIENT_VULKAN,
35 client_version: GLSLANG_TARGET_VULKAN_1_2,
36 target_language: GLSLANG_TARGET_SPV,
37 target_language_version: GLSLANG_TARGET_SPV_1_5,
38 code: shaderSource,
39 default_version: 100,
40 default_profile: GLSLANG_NO_PROFILE,
41 force_default_version_and_profile: false.cint,
42 forward_compatible: false.cint,
43 messages: GLSLANG_MSG_DEFAULT_BIT,
44 resource: glslang_default_resource(),
45 )
46
47 let shader = glslang_shader_create(addr(input))
48
49 if not bool(glslang_shader_preprocess(shader, addr(input))):
50 echo "GLSL preprocessing failed " & fileName
51 echo glslang_shader_get_info_log(shader)
52 echo glslang_shader_get_info_debug_log(shader)
53 echo input.code
54 glslang_shader_delete(shader)
55 return
56
57 if not bool(glslang_shader_parse(shader, addr(input))):
58 echo "GLSL parsing failed " & fileName
59 echo glslang_shader_get_info_log(shader)
60 echo glslang_shader_get_info_debug_log(shader)
61 echo glslang_shader_get_preprocessed_code(shader)
62 glslang_shader_delete(shader)
63 return
64
65 let program: ptr glslang_program_t = glslang_program_create()
66 glslang_program_add_shader(program, shader)
67
68 if not bool(glslang_program_link(program, ord(GLSLANG_MSG_SPV_RULES_BIT) or ord(GLSLANG_MSG_VULKAN_RULES_BIT))):
69 echo "GLSL linking failed " & fileName
70 echo glslang_program_get_info_log(program)
71 echo glslang_program_get_info_debug_log(program)
72 glslang_program_delete(program)
73 glslang_shader_delete(shader)
74 return
75
76 glslang_program_SPIRV_generate(program, stage)
77
78 result = newSeq[uint32](glslang_program_SPIRV_get_size(program))
79 glslang_program_SPIRV_get(program, addr(result[0]))
80
81 var spirv_messages: cstring = glslang_program_SPIRV_get_messages(program)
82 if spirv_messages != nil:
83 echo "(%s) %s\b", fileName, spirv_messages
84
85 glslang_program_delete(program)
86 glslang_shader_delete(shader)