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Fix issue with blinky.cg in cg2glsl.

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This commit is contained in:
Themaister 2013-04-12 00:20:58 +02:00
parent e75ed86fde
commit 88e2ac3c9c
1 changed files with 21 additions and 3 deletions
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20
tools/cg2glsl.py
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@ -35,6 +35,7 @@ def replace_global_vertex(source):
('POSITION', 'VertexCoord'),
('TEXCOORD0', 'TexCoord'),
('TEXCOORD', 'TexCoord'),
('TEXCOORD1', 'LUTTexCoord'),
('uniform vec4 _modelViewProj1[4]', 'uniform mat4 MVPMatrix'),
('_modelViewProj1', 'MVPMatrix'),
('MVPMatrix[0]', 'MVPMatrix_[0]'),
@ -45,6 +46,7 @@ def replace_global_vertex(source):
('_IN1._texture_size', 'TextureSize'),
('_IN1._output_size', 'OutputSize'),
('_IN1._frame_count', 'FrameCount'),
('_IN1._frame_direction', 'FrameDirection'),
('FrameCount', 'float(FrameCount)'),
('input', 'input_dummy'), # 'input' is reserved in GLSL.
('output', 'output_dummy'), # 'output' is reserved in GLSL.
@ -69,6 +71,14 @@ def translate_varyings(varyings, source):
def destructify_varyings(source):
# We have to change varying structs that Cg support to single varyings for GL. Varying structs aren't supported until later versions
# of GLSL.
# Global structs are sometimes used to store temporary data.
# Don't try to remove this as it breaks compile.
vout_lines = []
for line in source:
if ('//var' in line) and ('$vout$' in line):
vout_lines.append(line)
struct_types = []
for line in source:
if 'struct' in line:
@ -97,7 +107,7 @@ def destructify_varyings(source):
variables = []
# Don't include useless varyings like IN.video_size, IN.texture_size, etc as they are not actual varyings ...
for i in filter(lambda v: ('_video_size' not in v) and ('_texture_size' not in v) and '_output_size' not in v, varyings_tmp):
for i in filter(lambda v: ('_video_size' not in v) and ('_texture_size' not in v) and ('_output_size' not in v) and ('_frame_count' not in v) and ('_frame_direction' not in v), varyings_tmp):
varyings.append(i)
# Find any global variable struct that is supposed to be the output varying, and redirect all references to it to
@ -111,8 +121,13 @@ def destructify_varyings(source):
for struct in struct_types:
if struct in line:
variable = line.split(' ')[1].split(';')[0]
# Only redirect if the struct is actually used as vertex output.
for vout_line in vout_lines:
if variable in vout_line:
log('Found struct variable for', struct + ':', variable)
variables.append(variable)
break
varyings_dict = translate_varyings(varyings_name, source)
log('Varyings dict:', varyings_dict)
@ -151,6 +166,7 @@ def hack_source_vertex(source):
source.insert(index, 'uniform mediump vec2 OutputSize;')
source.insert(index, '#ifdef GL_ES')
source.insert(index, 'uniform int FrameCount;')
source.insert(index, 'uniform int FrameDirection;')
source.insert(index, """
mat4 transpose_(mat4 matrix)
@ -174,6 +190,7 @@ def replace_global_fragment(source):
('_IN1._texture_size', 'TextureSize'),
('_IN1._output_size', 'OutputSize'),
('_IN1._frame_count', 'FrameCount'),
('_IN1._frame_direction', 'FrameDirection'),
('FrameCount', 'float(FrameCount)'),
('input', 'input_dummy'),
('output', 'output_dummy'), # 'output' is reserved in GLSL.
@ -197,6 +214,7 @@ def hack_source_fragment(source):
source.insert(index, 'uniform mediump vec2 OutputSize;')
source.insert(index, '#ifdef GL_ES')
source.insert(index, 'uniform int FrameCount;')
source.insert(index, 'uniform int FrameDirection;')
break
for line in source: