diff options
Diffstat (limited to 'src/glsl/builtins/tools/texture_builtins.py')
| -rwxr-xr-x | src/glsl/builtins/tools/texture_builtins.py | 298 |
1 files changed, 298 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..23d53149161 --- /dev/null +++ b/src/glsl/builtins/tools/texture_builtins.py @@ -0,0 +1,298 @@ +#!/usr/bin/python + +from os import path +import sys + +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) + +builtins_dir = path.join(path.dirname(path.abspath(__file__)), "..") + +with open(path.join(builtins_dir, "130", "texture"), 'w') as sys.stdout: + print "((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") + print "))" + +# txb variants are only allowed within a fragment shader (GLSL 1.30 p. 86) +with open(path.join(builtins_dir, "130_fs", "texture"), 'w') as sys.stdout: + print "((function texture" + 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") + print "))" + +with open(path.join(builtins_dir, "130", "textureProj"), 'w') as sys.stdout: + print "((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) + print "))" + +with open(path.join(builtins_dir, "130_fs", "textureProj"), 'w') as sys.stdout: + print "((function textureProj" + 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) + print "))" + +with open(path.join(builtins_dir, "130", "textureLod"), 'w') as sys.stdout: + print "((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") + print "))" + +with open(path.join(builtins_dir, "130", "texelFetch"), 'w') as sys.stdout: + print "((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") + print "))" + +with open(path.join(builtins_dir, "130", "textureProjLod"), 'w') as sys.stdout: + print "((function textureLod" + 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) + print "))" + +with open(path.join(builtins_dir, "130", "textureGrad"), 'w') as sys.stdout: + print "((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") + print ")\n)" + +with open(path.join(builtins_dir, "130", "textureProjGrad"), 'w') as sys.stdout: + print "((function textureLod" + 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) + print "))" + +# ARB_texture_rectangle extension +with open(path.join(builtins_dir, "ARB_texture_rectangle", "textures"), 'w') as sys.stdout: + print "((function texture2DRect" + generate_sigs("", "tex", "2DRect") + print ")\n (function shadow2DRect" + generate_sigs("", "tex", "2DRectShadow") + print "))" + +# EXT_texture_array extension +with open(path.join(builtins_dir, "EXT_texture_array", "textures"), 'w') as sys.stdout: + print "((function texture1DArray" + generate_sigs("", "tex", "1DArray") + print ")\n (function texture1DArrayLod" + generate_sigs("", "txl", "1DArray") + print ")\n (function texture2DArray" + generate_sigs("", "tex", "2DArray") + print ")\n (function texture2DArrayLod" + generate_sigs("", "txl", "2DArray") + print ")\n (function shadow1DArray" + generate_sigs("", "tex", "1DArrayShadow") + print ")\n (function shadow1DArrayLod" + generate_sigs("", "txl", "1DArrayShadow") + print ")\n (function shadow2DArray" + generate_sigs("", "tex", "2DArrayShadow") + print "))" + +with open(path.join(builtins_dir, "EXT_texture_array_fs", "textures"), 'w') as sys.stdout: + print "((function texture1DArray" + generate_sigs("", "txb", "1DArray") # MOVE TO _fs + print ")\n (function texture2DArray" + generate_sigs("", "txb", "2DArray") # MOVE TO _fs + print ")\n (function shadow1DArray" + generate_sigs("", "txb", "1DArrayShadow") + print "))" + +# Deprecated (110/120 style) functions with silly names: +with open(path.join(builtins_dir, "110", "textures"), 'w') as sys.stdout: + print "((function texture1D" + generate_sigs("", "tex", "1D") + print ")\n (function texture1DLod" + generate_sigs("", "txl", "1D") + print ")\n (function texture1DProj" + generate_sigs("", "tex", "1D", True) + generate_sigs("", "tex", "1D", True, 2) + print ")\n (function texture1DProjLod" + generate_sigs("", "txl", "1D", True) + generate_sigs("", "txl", "1D", True, 2) + print ")\n (function texture2D" + generate_sigs("", "tex", "2D") + print ")\n(function texture2DLod" + generate_sigs("", "txl", "2D") + print ")\n (function texture2DProj" + generate_sigs("", "tex", "2D", True) + generate_sigs("", "tex", "2D", True, 1) + print ")\n (function texture2DProjLod" + generate_sigs("", "txl", "2D", True) + generate_sigs("", "txl", "2D", True, 1) + print ")\n (function texture3D" + generate_sigs("", "tex", "3D") + print ")\n (function texture3DLod" + generate_sigs("", "txl", "3D") + print ")\n (function texture3DProj" + generate_sigs("", "tex", "3D", True) + print ")\n (function texture3DProjLod" + generate_sigs("", "txl", "3D", True) + print ")\n (function textureCube" + generate_sigs("", "tex", "Cube") + print ")\n (function textureCubeLod" + generate_sigs("", "txl", "Cube") + print ")\n (function shadow1D" + generate_sigs("", "tex", "1DShadow", False, 1) + print ")\n (function shadow1DLod" + generate_sigs("", "txl", "1DShadow", False, 1) + print ")\n (function shadow1DProj" + generate_sigs("", "tex", "1DShadow", True, 1) + print ")\n (function shadow1DProjLod" + generate_sigs("", "txl", "1DShadow", True, 1) + print ")\n (function shadow2D" + generate_sigs("", "tex", "2DShadow") + print ")\n (function shadow2DLod" + generate_sigs("", "txl", "2DShadow") + print ")\n (function shadow2DProj" + generate_sigs("", "tex", "2DShadow", True) + print ")\n (function shadow2DProjLod" + generate_sigs("", "txl", "2DShadow", True) + print "))" + +with open(path.join(builtins_dir, "110_fs", "textures"), 'w') as sys.stdout: + print "((function texture1D" + generate_sigs("", "txb", "1D") + print ")\n (function texture1DProj" + generate_sigs("", "txb", "1D", True) + generate_sigs("", "txb", "1D", True, 2) + print ")\n (function texture2D" + generate_sigs("", "txb", "2D") + print ")\n (function texture2DProj" + generate_sigs("", "txb", "2D", True) + generate_sigs("", "txb", "2D", True, 1) + print ")\n (function texture3D" + generate_sigs("", "txb", "3D") + print ")\n (function texture3DProj" + generate_sigs("", "txb", "3D", True) + print ")\n (function textureCube" + generate_sigs("", "txb", "Cube") + print ")\n (function shadow1D" + generate_sigs("", "txb", "1DShadow", False, 1) + print ")\n (function shadow1DProj" + generate_sigs("", "txb", "1DShadow", True, 1) + print ")\n (function shadow2D" + generate_sigs("", "txb", "2DShadow") + print ")\n (function shadow2DProj" + generate_sigs("", "txb", "2DShadow", True) + print "))" |