diff options
Diffstat (limited to 'src/glsl/builtins/tools/texture_builtins.py')
| -rwxr-xr-x | src/glsl/builtins/tools/texture_builtins.py | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/src/glsl/builtins/tools/texture_builtins.py b/src/glsl/builtins/tools/texture_builtins.py new file mode 100755 index 00000000000..8bf708b5aac --- /dev/null +++ b/src/glsl/builtins/tools/texture_builtins.py @@ -0,0 +1,349 @@ +#!/usr/bin/python + +import sys +import StringIO + +def vec_type(g, size): + if size == 1: + if g == "i": + return "int" + elif g == "u": + return "uint" + return "float" + return g + "vec" + str(size) + +# Get the base dimension - i.e. sampler3D gives 3 +# Array samplers also get +1 here since the layer is really an extra coordinate +def get_coord_dim(sampler_type): + if sampler_type[0].isdigit(): + coord_dim = int(sampler_type[0]) + elif sampler_type.startswith("Cube"): + coord_dim = 3 + else: + assert False ("coord_dim: invalid sampler_type: " + sampler_type) + + if sampler_type.find("Array") != -1: + coord_dim += 1 + return coord_dim + +# Get the number of extra vector components (i.e. shadow comparitor) +def get_extra_dim(sampler_type, use_proj, unused_fields): + extra_dim = unused_fields + if sampler_type.find("Shadow") != -1: + extra_dim += 1 + if use_proj: + extra_dim += 1 + return extra_dim + +def generate_sigs(g, tex_inst, sampler_type, use_proj = False, unused_fields = 0): + coord_dim = get_coord_dim(sampler_type) + extra_dim = get_extra_dim(sampler_type, use_proj, unused_fields) + + # Print parameters + print " (signature " + g + "vec4" + print " (parameters" + print " (declare (in) " + g + "sampler" + sampler_type + " sampler)" + print " (declare (in) " + vec_type("i" if tex_inst == "txf" else "", coord_dim + extra_dim) + " P)", + if tex_inst == "txb": + print "\n (declare (in) float bias)", + elif tex_inst == "txl": + print "\n (declare (in) float lod)", + elif tex_inst == "txf": + print "\n (declare (in) int lod)", + elif tex_inst == "txd": + grad_type = vec_type("", coord_dim) + print "\n (declare (in) " + grad_type + " dPdx)", + print "\n (declare (in) " + grad_type + " dPdy)", + + print ")\n ((return (" + tex_inst + " (var_ref sampler)", + + # Coordinate + if extra_dim > 0: + print "(swiz " + "xyzw"[:coord_dim] + " (var_ref P))", + else: + print "(var_ref P)", + + # Offset + print "(0 0 0)", + + if tex_inst != "txf": + # Projective divisor + if use_proj: + print "(swiz " + "xyzw"[coord_dim + extra_dim-1] + " (var_ref P))", + else: + print "1", + + # Shadow comparitor + if sampler_type == "2DArrayShadow": # a special case: + print "(swiz w (var_ref P))", # ...array layer is z; shadow is w + elif sampler_type.endswith("Shadow"): + print "(swiz z (var_ref P))", + else: + print "()", + + # Bias/explicit LOD/gradient: + if tex_inst == "txb": + print "(var_ref bias)", + elif tex_inst == "txl" or tex_inst == "txf": + print "(var_ref lod)", + elif tex_inst == "txd": + print "((var_ref dPdx) (var_ref dPdy))", + print "))))\n" + +def generate_fiu_sigs(tex_inst, sampler_type, use_proj = False, unused_fields = 0): + generate_sigs("", tex_inst, sampler_type, use_proj, unused_fields) + generate_sigs("i", tex_inst, sampler_type, use_proj, unused_fields) + generate_sigs("u", tex_inst, sampler_type, use_proj, unused_fields) + +def start_function(name): + sys.stdout = StringIO.StringIO() + print "((function " + name + +def end_function(fs, name): + print "))" + fs[name] = sys.stdout.getvalue(); + sys.stdout.close() + +# Generate all the functions and store them in the supplied dictionary. +# This is better than writing them to actual files since they should never be +# edited; it'd also be easy to confuse them with the many hand-generated files. +# +# Takes a dictionary as an argument. +def generate_texture_functions(fs): + start_function("texture") + generate_fiu_sigs("tex", "1D") + generate_fiu_sigs("tex", "2D") + generate_fiu_sigs("tex", "3D") + generate_fiu_sigs("tex", "Cube") + generate_fiu_sigs("tex", "1DArray") + generate_fiu_sigs("tex", "2DArray") + + generate_fiu_sigs("txb", "1D") + generate_fiu_sigs("txb", "2D") + generate_fiu_sigs("txb", "3D") + generate_fiu_sigs("txb", "Cube") + generate_fiu_sigs("txb", "1DArray") + generate_fiu_sigs("txb", "2DArray") + end_function(fs, "texture") + + start_function("textureProj") + generate_fiu_sigs("tex", "1D", True) + generate_fiu_sigs("tex", "1D", True, 2) + generate_fiu_sigs("tex", "2D", True) + generate_fiu_sigs("tex", "2D", True, 1) + generate_fiu_sigs("tex", "3D", True) + + generate_fiu_sigs("txb", "1D", True) + generate_fiu_sigs("txb", "1D", True, 2) + generate_fiu_sigs("txb", "2D", True) + generate_fiu_sigs("txb", "2D", True, 1) + generate_fiu_sigs("txb", "3D", True) + end_function(fs, "textureProj") + + start_function("textureLod") + generate_fiu_sigs("txl", "1D") + generate_fiu_sigs("txl", "2D") + generate_fiu_sigs("txl", "3D") + generate_fiu_sigs("txl", "Cube") + generate_fiu_sigs("txl", "1DArray") + generate_fiu_sigs("txl", "2DArray") + end_function(fs, "textureLod") + + start_function("texelFetch") + generate_fiu_sigs("txf", "1D") + generate_fiu_sigs("txf", "2D") + generate_fiu_sigs("txf", "3D") + generate_fiu_sigs("txf", "1DArray") + generate_fiu_sigs("txf", "2DArray") + end_function(fs, "texelFetch") + + start_function("textureProjLod") + generate_fiu_sigs("txl", "1D", True) + generate_fiu_sigs("txl", "1D", True, 2) + generate_fiu_sigs("txl", "2D", True) + generate_fiu_sigs("txl", "2D", True, 1) + generate_fiu_sigs("txl", "3D", True) + end_function(fs, "textureProjLod") + + start_function("textureGrad") + generate_fiu_sigs("txd", "1D") + generate_fiu_sigs("txd", "2D") + generate_fiu_sigs("txd", "3D") + generate_fiu_sigs("txd", "Cube") + generate_fiu_sigs("txd", "1DArray") + generate_fiu_sigs("txd", "2DArray") + end_function(fs, "textureGrad") + + start_function("textureProjGrad") + generate_fiu_sigs("txd", "1D", True) + generate_fiu_sigs("txd", "1D", True, 2) + generate_fiu_sigs("txd", "2D", True) + generate_fiu_sigs("txd", "2D", True, 1) + generate_fiu_sigs("txd", "3D", True) + end_function(fs, "textureProjGrad") + + # ARB_texture_rectangle extension + start_function("texture2DRect") + generate_sigs("", "tex", "2DRect") + end_function(fs, "texture2DRect") + + start_function("texture2DRectProj") + generate_sigs("", "tex", "2DRect", True) + generate_sigs("", "tex", "2DRect", True, 1) + end_function(fs, "texture2DRectProj") + + start_function("shadow2DRect") + generate_sigs("", "tex", "2DRectShadow") + end_function(fs, "shadow2DRect") + + start_function("shadow2DRectProj") + generate_sigs("", "tex", "2DRectShadow", True) + end_function(fs, "shadow2DRectProj") + + # EXT_texture_array extension + start_function("texture1DArray") + generate_sigs("", "tex", "1DArray") + generate_sigs("", "txb", "1DArray") + end_function(fs, "texture1DArray") + + start_function("texture1DArrayLod") + generate_sigs("", "txl", "1DArray") + end_function(fs, "texture1DArrayLod") + + start_function("texture2DArray") + generate_sigs("", "tex", "2DArray") + generate_sigs("", "txb", "2DArray") + end_function(fs, "texture2DArray") + + start_function("texture2DArrayLod") + generate_sigs("", "txl", "2DArray") + end_function(fs, "texture2DArrayLod") + + start_function("shadow1DArray") + generate_sigs("", "tex", "1DArrayShadow") + generate_sigs("", "txb", "1DArrayShadow") + end_function(fs, "shadow1DArray") + + start_function("shadow1DArrayLod") + generate_sigs("", "txl", "1DArrayShadow") + end_function(fs, "shadow1DArrayLod") + + start_function("shadow2DArray") + generate_sigs("", "tex", "2DArrayShadow") + end_function(fs, "shadow2DArray") + + # Deprecated (110/120 style) functions with silly names: + start_function("texture1D") + generate_sigs("", "tex", "1D") + generate_sigs("", "txb", "1D") + end_function(fs, "texture1D") + + start_function("texture1DLod") + generate_sigs("", "txl", "1D") + end_function(fs, "texture1DLod") + + start_function("texture1DProj") + generate_sigs("", "tex", "1D", True) + generate_sigs("", "tex", "1D", True, 2) + generate_sigs("", "txb", "1D", True) + generate_sigs("", "txb", "1D", True, 2) + end_function(fs, "texture1DProj") + + start_function("texture1DProjLod") + generate_sigs("", "txl", "1D", True) + generate_sigs("", "txl", "1D", True, 2) + end_function(fs, "texture1DProjLod") + + start_function("texture2D") + generate_sigs("", "tex", "2D") + generate_sigs("", "txb", "2D") + end_function(fs, "texture2D") + + start_function("texture2DLod") + generate_sigs("", "txl", "2D") + end_function(fs, "texture2DLod") + + start_function("texture2DProj") + generate_sigs("", "tex", "2D", True) + generate_sigs("", "tex", "2D", True, 1) + generate_sigs("", "txb", "2D", True) + generate_sigs("", "txb", "2D", True, 1) + end_function(fs, "texture2DProj") + + start_function("texture2DProjLod") + generate_sigs("", "txl", "2D", True) + generate_sigs("", "txl", "2D", True, 1) + end_function(fs, "texture2DProjLod") + + start_function("texture3D") + generate_sigs("", "tex", "3D") + generate_sigs("", "txb", "3D") + end_function(fs, "texture3D") + + start_function("texture3DLod") + generate_sigs("", "txl", "3D") + end_function(fs, "texture3DLod") + + start_function("texture3DProj") + generate_sigs("", "tex", "3D", True) + generate_sigs("", "txb", "3D", True) + end_function(fs, "texture3DProj") + + start_function("texture3DProjLod") + generate_sigs("", "txl", "3D", True) + end_function(fs, "texture3DProjLod") + + start_function("textureCube") + generate_sigs("", "tex", "Cube") + generate_sigs("", "txb", "Cube") + end_function(fs, "textureCube") + + start_function("textureCubeLod") + generate_sigs("", "txl", "Cube") + end_function(fs, "textureCubeLod") + + start_function("shadow1D") + generate_sigs("", "tex", "1DShadow", False, 1) + generate_sigs("", "txb", "1DShadow", False, 1) + end_function(fs, "shadow1D") + + start_function("shadow1DLod") + generate_sigs("", "txl", "1DShadow", False, 1) + end_function(fs, "shadow1DLod") + + start_function("shadow1DProj") + generate_sigs("", "tex", "1DShadow", True, 1) + generate_sigs("", "txb", "1DShadow", True, 1) + end_function(fs, "shadow1DProj") + + start_function("shadow1DProjLod") + generate_sigs("", "txl", "1DShadow", True, 1) + end_function(fs, "shadow1DProjLod") + + start_function("shadow2D") + generate_sigs("", "tex", "2DShadow") + generate_sigs("", "txb", "2DShadow") + end_function(fs, "shadow2D") + + start_function("shadow2DLod") + generate_sigs("", "txl", "2DShadow") + end_function(fs, "shadow2DLod") + + start_function("shadow2DProj") + generate_sigs("", "tex", "2DShadow", True) + generate_sigs("", "txb", "2DShadow", True) + end_function(fs, "shadow2DProj") + + start_function("shadow2DProjLod") + generate_sigs("", "txl", "2DShadow", True) + end_function(fs, "shadow2DProjLod") + + sys.stdout = sys.__stdout__ + return fs + +# If you actually run this script, it'll print out all the functions. +if __name__ == "__main__": + fs = {} + generate_texture_functions(fs); + for k, v in fs.iteritems(): + print v |