def parseOutput(output, lines) :
'''
Parse error output lines from the GLSL reference compiler,
map them to the original source code location and output
an error message compatible with Xcode or VStudio
'''
outLines = output.splitlines()
for outLine in outLines :
if outLine.startswith('ERROR: ') :
# extract generated shader source column, line and message
colStartIndex = 7
colEndIndex = outLine.find(':', colStartIndex)
if colEndIndex == -1 :
continue
lineStartIndex = colEndIndex + 1
lineEndIndex = outLine.find(':', lineStartIndex)
if lineEndIndex == -1 :
continue
msgStartIndex = lineEndIndex + 1
colNr = int(outLine[colStartIndex:colEndIndex])
lineNr = int(outLine[lineStartIndex:lineEndIndex])
msg = outLine[msgStartIndex:]
# map to original location
lineIndex = lineNr - 1
if lineIndex >= len(lines) :
lineIndex = len(lines) - 1
srcPath = lines[lineIndex].path
srcLineNr = lines[lineIndex].lineNumber
# and output...
util.setErrorLocation(srcPath, srcLineNr)
util.fmtError(msg)
def resolveDeps(self, shd, dep):
'''
Recursively resolve dependencies for a shader.
'''
# just add new dependencies at the end of resolvedDeps,
# and remove dups in a second pass after recursion
if not dep.name in self.blocks:
util.setErrorLocation(dep.path, dep.lineNumber)
util.fmtError("unknown block dependency '{}'".format(dep.name))
shd.resolvedDeps.append(dep.name)
for depdep in self.blocks[dep.name].dependencies:
self.resolveDeps(shd, depdep)
def resolveDeps(self, shd, dep) :
'''
Recursively resolve dependencies for a shader.
'''
# just add new dependencies at the end of resolvedDeps,
# and remove dups in a second pass after recursion
if not dep.name in self.blocks :
util.setErrorLocation(dep.path, dep.lineNumber)
util.fmtError("unknown block dependency '{}'".format(dep.name))
shd.resolvedDeps.append(dep.name)
for depdep in self.blocks[dep.name].dependencies :
self.resolveDeps(shd, depdep)
def checkAddUniform(self, uniform, list):
'''
Check if uniform already exists in list, if yes
check if type and binding matches, if not write error.
If uniform doesn't exist yet in list, add it.
'''
listUniform = findByName(uniform.name, list)
if listUniform is not None:
# redundant uniform, check if type and binding name match
if listUniform.type != uniform.type:
util.setErrorLocation(uniform.filePath, uniform.lineNumber)
util.fmtError(
"uniform type mismatch '{}' vs '{}'".format(
uniform.type, listUniform.type), False)
util.setErrorLocation(listUniform.filePath,
listUniform.lineNumber)
util.fmtError("uniform type mismatch '{}' vs '{}'".format(
listUniform.type, uniform.type))
if listUniform.bind != uniform.bind:
util.setErrorLocation(uniform.filePath, uniform.lineNumber)
util.fmtError(
"uniform bind name mismatch '{}' vs '{}'".format(
uniform.bind, listUniform.bind), False)
util.setErrorLocation(listUniform.filePath,
listUniform.lineNumber)
util.fmtError("uniform bind name mismatch '{}' vs '{}'".format(
listUniform.bind, uniform.bind))
else:
# new uniform from block, add to list
list.append(uniform)
def resolveBundleUniforms(self, bundle) :
'''
Gathers all uniforms from all shaders in the bundle.
'''
for program in bundle.programs :
if program.vs not in self.vertexShaders :
util.setErrorLocation(program.filePath, program.lineNumber)
util.fmtError("unknown vertex shader '{}'".format(program.vs))
for uniform in self.vertexShaders[program.vs].uniforms :
self.checkAddUniform(uniform, bundle.uniforms)
if program.fs not in self.fragmentShaders :
util.setErrorLocation(program.filePath, program.lineNumber)
util.fmtError("unknown fragment shader '{}'".format(program.fs))
for uniform in self.fragmentShaders[program.fs].uniforms :
self.checkAddUniform(uniform, bundle.uniforms)
def resolveBundleUniforms(self, bundle) :
'''
Gathers all uniforms from all shaders in the bundle.
'''
for program in bundle.programs :
if program.vs not in self.vertexShaders :
util.setErrorLocation(program.filePath, program.lineNumber)
util.fmtError("unknown vertex shader '{}'".format(program.vs))
for uniform in self.vertexShaders[program.vs].uniforms :
self.checkAddUniform(uniform, bundle.uniforms)
if program.fs not in self.fragmentShaders :
util.setErrorLocation(program.filePath, program.lineNumber)
util.fmtError("unknown fragment shader '{}'".format(program.fs))
for uniform in self.fragmentShaders[program.fs].uniforms :
self.checkAddUniform(uniform, bundle.uniforms)
def parseSource(self, fileName):
'''
Parse a single file and populate shader lib
'''
print '=> parsing {}'.format(fileName)
f = open(fileName, 'r')
self.fileName = fileName
self.lineNumber = 0
for line in f:
util.setErrorLocation(self.fileName, self.lineNumber)
self.parseLine(line)
self.lineNumber += 1
f.close()
# all blocks must be closed
if self.current is not None:
util.fmtError('missing @end at end of file')
def parseSource(self, fileName) :
'''
Parse a single file and populate shader lib
'''
print '=> parsing {}'.format(fileName)
f = open(fileName, 'r')
self.fileName = fileName
self.lineNumber = 0
for line in f :
util.setErrorLocation(self.fileName, self.lineNumber)
self.parseLine(line)
self.lineNumber += 1
f.close()
# all blocks must be closed
if self.current is not None :
util.fmtError('missing @end at end of file')
def checkAddUniform(self, uniform, list) :
'''
Check if uniform already exists in list, if yes
check if type and binding matches, if not write error.
If uniform doesn't exist yet in list, add it.
'''
listUniform = findByName(uniform.name, list)
if listUniform is not None:
# redundant uniform, check if type and binding name match
if listUniform.type != uniform.type :
util.setErrorLocation(uniform.filePath, uniform.lineNumber)
util.fmtError("uniform type mismatch '{}' vs '{}'".format(uniform.type, listUniform.type), False)
util.setErrorLocation(listUniform.filePath, listUniform.lineNumber)
util.fmtError("uniform type mismatch '{}' vs '{}'".format(listUniform.type, uniform.type))
if listUniform.bind != uniform.bind :
util.setErrorLocation(uniform.filePath, uniform.lineNumber)
util.fmtError("uniform bind name mismatch '{}' vs '{}'".format(uniform.bind, listUniform.bind), False)
util.setErrorLocation(listUniform.filePath, listUniform.lineNumber)
util.fmtError("uniform bind name mismatch '{}' vs '{}'".format(listUniform.bind, uniform.bind))
else :
# new uniform from block, add to list
list.append(uniform)
