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Fixups in cg2glsl.

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Don't allow struct names and varyings to collide.
Also add fixes for *.texture_size for PREV/PASS/ORIG, etc.
This commit is contained in:
Themaister 2013-04-13 16:32:52 +02:00
parent 53d5678b85
commit 3ae5662dd2
1 changed files with 71 additions and 11 deletions

82
tools/cg2glsl.py

@ -87,7 +87,7 @@ def translate_varyings(varyings, source):
for line in source:
if (varying in line) and ('//var' in line):
log('Found line for', varying + ':', line)
dictionary[varying] = line.split(':')[0].split('.')[-1].strip()
dictionary[varying] = 'VAR' + line.split(':')[0].split('.')[-1].strip()
break
return dictionary
@ -109,9 +109,6 @@ def no_uniform(elem):
return True
def destructify_varyings(source):
#for line in source:
# log(' ', line)
# We have to change varying structs that Cg support to single varyings for GL.
# Varying structs aren't supported until later versions
# of GLSL.
@ -124,7 +121,7 @@ def destructify_varyings(source):
vout_lines.append(line)
struct_types = []
for line in source:
for line in source[1:]:
if 'struct' in line:
struct_type = line.split(' ')[1]
if struct_type not in struct_types:
@ -189,11 +186,17 @@ def destructify_varyings(source):
for varying in varyings:
source.insert(1, varying)
log('Variables:', variables)
log('Varying names:', varyings_name)
# Replace struct access with global access, e.g. (_co1._c00 => _c00)
# Also replace mangled Cg name with 'real' name.
for index, _ in enumerate(source):
for variable in variables:
source[index] = source[index].replace(variable + '.', '');
for varying_name in varyings_dict:
trans_from = variable + '.' + varying_name
trans_to = varyings_dict[varying_name]
source[index] = source[index].replace(trans_from, trans_to);
for index, _ in enumerate(source):
for varying_name in varyings_name:
@ -234,11 +237,39 @@ def translate_varying(cg):
else:
return cg
def translate_texture_size(cg):
log('Translate:', cg)
translations = {
'ORIG.texture_size' : 'OrigTextureSize',
'PREV.texture_size' : 'PrevTextureSize',
'PREV1.texture_size' : 'Prev1TextureSize',
'PREV2.texture_size' : 'Prev2TextureSize',
'PREV3.texture_size' : 'Prev3TextureSize',
'PREV4.texture_size' : 'Prev4TextureSize',
'PREV5.texture_size' : 'Prev5TextureSize',
'PREV6.texture_size' : 'Prev6TextureSize',
'PASS1.texture_size' : 'Pass1TextureSize',
'PASS2.texture_size' : 'Pass2TextureSize',
'PASS3.texture_size' : 'Pass3TextureSize',
'PASS4.texture_size' : 'Pass4TextureSize',
'PASS5.texture_size' : 'Pass5TextureSize',
'PASS6.texture_size' : 'Pass6TextureSize',
'PASS7.texture_size' : 'Pass7TextureSize',
'PASS8.texture_size' : 'Pass8TextureSize',
}
if cg in translations:
return translations[cg]
else:
return cg
def replace_varyings(source):
ret = []
translations = []
attribs = []
uniforms = []
for index, line in enumerate(source):
if ('//var' in line) and ('$vin.' in line):
orig = line.split(' ')[2]
@ -247,11 +278,24 @@ def replace_varyings(source):
cg_attrib = line.split(':')[2].split(' ')[1]
translations.append((cg_attrib, translated))
attribs.append(translated)
elif '//var' in line:
orig = line.split(' ')[2]
translated = translate_texture_size(orig)
if translated != orig and translated not in uniforms:
cg_uniform = line.split(':')[2].split(' ')[1]
translations.append((cg_uniform, translated))
uniforms.append(translated)
for index, line in enumerate(source):
if 'void main()' in line:
for attrib in attribs:
source.insert(index, 'attribute vec2 ' + attrib + ';')
for uniform in uniforms:
source.insert(index, '#endif')
source.insert(index, 'uniform vec2 ' + uniform + ';')
source.insert(index, '#else')
source.insert(index, 'uniform mediump vec2 ' + uniform + ';')
source.insert(index, '#ifdef GL_ES')
break
for line in source:
@ -309,6 +353,7 @@ def replace_global_fragment(source):
return source
def translate_texture(cg):
log('Translate:', cg)
translations = {
@ -353,13 +398,14 @@ def hack_source_fragment(source):
ref_index = index
break
samplers = []
translations = []
added_samplers = []
translated_samplers = []
uniforms = []
for line in source:
if ('TEXUNIT0' in line) and ('semantic' not in line):
main_sampler = (line.split(':')[2].split(' ')[1], 'Texture')
samplers.append(main_sampler)
translations.append(main_sampler)
log('Fragment: Sampler:', main_sampler[0], '->', main_sampler[1])
elif '//var sampler2D' in line:
cg_texture = line.split(' ')[2]
@ -369,16 +415,30 @@ def hack_source_fragment(source):
added_samplers.append('uniform sampler2D ' + translated + ';')
orig_name = translated
new_name = line.split(':')[2].split(' ')[1]
samplers.append((new_name, orig_name))
translations.append((new_name, orig_name))
log('Fragment: Sampler:', new_name, '->', orig_name)
elif '//var' in line:
orig = line.split(' ')[2]
translated = translate_texture_size(orig)
if translated != orig and translated not in uniforms:
cg_uniform = line.split(':')[2].split(' ')[1]
translations.append((cg_uniform, translated))
uniforms.append(translated)
for sampler in added_samplers:
source.insert(ref_index, sampler)
for uniform in uniforms:
source.insert(ref_index, '#endif')
source.insert(ref_index, 'uniform vec2 ' + uniform + ';')
source.insert(ref_index, '#else')
source.insert(ref_index, 'uniform mediump vec2 ' + uniform + ';')
source.insert(ref_index, '#ifdef GL_ES')
ret = []
for line in source:
for sampler in samplers:
line = line.replace(sampler[0], sampler[1])
for translation in translations:
line = line.replace(translation[0], translation[1])
ret.append(line)
ret = destructify_varyings(ret)