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https://github.com/libretro/RetroArch.git
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More refactoring of cg2glsl.py.
This commit is contained in:
Felix Laurie von Massenbach
parent
867b83e352
commit
c5930e5a0c
@ -37,8 +37,19 @@ def remove_comments(source_lines):
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return keep_line_if(lambda line: line, lines_without_comments)
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def defines_var(line):
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return ('//var' in line) or ('#var' in line)
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def replace_by_table(source, table):
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for orig, new in table:
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if orig:
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source = source.replace(orig, new)
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return source
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def replace_global_in(source):
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split_source = source.split('\n')
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replace_table = [
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('IN.video_size', 'InputSize'),
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('IN.texture_size', 'TextureSize'),
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@ -47,8 +58,8 @@ def replace_global_in(source):
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('IN.frame_direction', 'FrameDirection'),
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]
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for line in split_source:
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if ('//var' in line) or ('#var' in line):
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for line in source.splitlines():
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if defines_var(line):
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for index, replace in enumerate(replace_table):
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orig = line.split()[2]
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if replace[0] == orig:
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@ -56,15 +67,12 @@ def replace_global_in(source):
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log('Replace globals:', replace_table)
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for orig, new in replace_table:
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if orig:
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source = source.replace(orig, new)
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return source
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return replace_by_table(source, replace_table)
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def replace_global_vertex(source):
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source = replace_global_in(source)
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replace_table = [
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('attribute', 'COMPAT_ATTRIBUTE'),
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('varying', 'COMPAT_VARYING'),
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@ -86,17 +94,14 @@ def replace_global_vertex(source):
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('output', 'output_dummy'), # 'output' is reserved in GLSL.
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]
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for orig, new in replace_table:
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source = source.replace(orig, new)
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return source
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return replace_by_table(source, replace_table)
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def translate_varyings(varyings, source, direction):
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dictionary = {}
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for varying in varyings:
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for line in source:
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if (varying in line) and (('//var' in line) or ('#var' in line)) and (direction in line):
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if defines_var(line) and (varying in line) and (direction in line):
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log('Found line for', varying + ':', line)
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dictionary[varying] = 'VAR' + line.split(':')[0].split('.')[-1].strip()
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break
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@ -120,6 +125,7 @@ def no_uniform(elem):
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for ban in banned:
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if ban in elem:
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return False
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return True
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@ -132,7 +138,7 @@ def destructify_varyings(source, direction):
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# Don't try to remove this as it breaks compile.
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vout_lines = []
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for line in source:
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if (('//var' in line) or ('#var' in line)) and (('$vout.' in line) or ('$vin.' in line)):
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if defines_var(line) and (('$vout.' in line) or ('$vin.' in line)):
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vout_lines.append(line)
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struct_types = []
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@ -227,9 +233,14 @@ def destructify_varyings(source, direction):
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return source
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def translate(cg, translations):
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if cg in translations:
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return translations[cg]
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else:
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return cg
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def translate_varying(cg):
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# Ye, it's ugly as shit. :(
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# log('Translate:', cg)
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translations = {
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'IN.tex_coord': 'TexCoord',
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'IN.vertex_coord': 'VertexCoord',
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@ -259,15 +270,10 @@ def translate_varying(cg):
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'PASSPREV8.tex_coord': 'PassPrev8TexCoord',
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}
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if cg in translations:
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return translations[cg]
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else:
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return cg
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return translate(cg, translations)
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def translate_texture_size(cg):
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# Ye, it's ugly as shit. :(
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# log('Translate:', cg)
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translations = {
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'ORIG.texture_size': 'OrigTextureSize',
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'PREV.texture_size': 'PrevTextureSize',
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@ -317,10 +323,7 @@ def translate_texture_size(cg):
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'PASSPREV8.video_size': 'PassPrev8InputSize',
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}
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if cg in translations:
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return translations[cg]
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else:
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return cg
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return translate(cg, translations)
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def replace_varyings(source):
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@ -329,7 +332,7 @@ def replace_varyings(source):
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attribs = []
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uniforms = []
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for index, line in enumerate(source):
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if ('//var' in line) or ('#var' in line):
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if defines_var(line):
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func = translate_texture_size
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collection = uniforms
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if '$vin.' in line:
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@ -386,7 +389,7 @@ def fix_samplers(log_prefix, ref_index, source):
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translated_samplers.append(translated)
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added_samplers.append('uniform sampler2D ' + translated + ';')
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translations.append((new_name, orig_name))
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elif ('//var' in line) or ('#var' in line):
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elif defines_var(line):
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orig = line.split()[2]
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translated = translate_texture_size(orig)
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if translated != orig and translated not in uniforms:
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@ -425,11 +428,13 @@ def hack_source_vertex(source):
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source = fix_samplers('Vertex:', ref_index, source)
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source = destructify_varyings(source, '$vout.')
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source = replace_varyings(source)
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return source
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def replace_global_fragment(source):
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source = replace_global_in(source)
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replace_table = [
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('varying', 'COMPAT_VARYING'),
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('texture2D', 'COMPAT_TEXTURE'),
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@ -440,14 +445,10 @@ def replace_global_fragment(source):
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('gl_FragColor', 'FragColor'),
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]
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for replacement in replace_table:
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source = source.replace(replacement[0], replacement[1])
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return source
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return replace_by_table(source, replace_table)
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def translate_texture(cg):
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log('Translate:', cg)
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translations = {
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'ORIG.texture': 'OrigTexture',
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'PREV.texture': 'PrevTexture',
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@ -474,10 +475,7 @@ def translate_texture(cg):
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'PASSPREV8.texture': 'PassPrev8Texture',
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}
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if cg in translations:
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return translations[cg]
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else:
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return cg
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return translate(cg, translations)
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def hack_source_fragment(source):
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@ -494,6 +492,7 @@ def hack_source_fragment(source):
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source = fix_samplers('Fragment:', ref_index, source)
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source = destructify_varyings(source, '$vin.')
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return source
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@ -513,7 +512,7 @@ def validate_shader(source, target):
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def preprocess_vertex(source_data):
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input_data = source_data.split('\n')
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input_data = source_data.splitlines()
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ret = []
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for line in input_data:
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if ('uniform' in line) and (('float4x4' in line) or ('half4x4' in line)):
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@ -561,8 +560,8 @@ def convert(source, dest):
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vertex_source = replace_global_vertex(vertex_source)
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fragment_source = replace_global_fragment(fragment_source)
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vertex_source = vertex_source.split('\n')
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fragment_source = fragment_source.split('\n')
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vertex_source = vertex_source.splitlines()
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fragment_source = fragment_source.splitlines()
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# Cg think we're using row-major matrices, but we're using column major.
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# Also, Cg tends to compile matrix multiplications as dot products in GLSL.
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