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texture_builtins.py: Add support for textureSize (txs). 

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Kenneth Graunke 2011-02-25 15:14:22 -08:00
parent 1e3bcbdf31
commit 583b295bbf
1 changed files with 36 additions and 14 deletions
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50
src/glsl/builtins/tools/texture_builtins.py
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@ -44,6 +44,11 @@ def get_extra_dim(sampler_type, use_proj, unused_fields):
extra_dim += 1
return extra_dim
def get_txs_dim(sampler_type):
if sampler_type.startswith("Cube"):
return 2
return get_coord_dim(sampler_type)
def generate_sigs(g, tex_inst, sampler_type, variant = 0, unused_fields = 0):
coord_dim = get_coord_dim(sampler_type)
extra_dim = get_extra_dim(sampler_type, variant & Proj, unused_fields)
@ -51,17 +56,20 @@ def generate_sigs(g, tex_inst, sampler_type, variant = 0, unused_fields = 0):
if variant & Single:
return_type = "float"
elif tex_inst == "txs":
return_type = vec_type("i", get_txs_dim(sampler_type))
else:
return_type = g + "vec4"
# Print parameters
print " (signature", return_type
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)",
print " (declare (in) " + g + "sampler" + sampler_type + " sampler)",
if tex_inst != "txs":
print "\n (declare (in) " + vec_type("i" if tex_inst == "txf" else "", coord_dim + extra_dim) + " P)",
if tex_inst == "txl":
print "\n (declare (in) float lod)",
elif tex_inst == "txf":
elif tex_inst == "txf" or tex_inst == "txs":
print "\n (declare (in) int lod)",
elif tex_inst == "txd":
grad_type = vec_type("", coord_dim)
@ -75,18 +83,19 @@ def generate_sigs(g, tex_inst, sampler_type, variant = 0, unused_fields = 0):
print ")\n ((return (" + tex_inst, return_type, "(var_ref sampler)",
# Coordinate
if extra_dim > 0:
print "(swiz " + "xyzw"[:coord_dim] + " (var_ref P))",
else:
print "(var_ref P)",
if tex_inst != "txs":
# Coordinate
if extra_dim > 0:
print "(swiz " + "xyzw"[:coord_dim] + " (var_ref P))",
else:
print "(var_ref P)",
if variant & Offset:
print "(var_ref offset)",
else:
print "0",
if variant & Offset:
print "(var_ref offset)",
else:
print "0",
if tex_inst != "txf":
if tex_inst != "txf" and tex_inst != "txs":
# Projective divisor
if variant & Proj:
print "(swiz " + "xyzw"[coord_dim + extra_dim-1] + " (var_ref P))",
@ -104,7 +113,7 @@ def generate_sigs(g, tex_inst, sampler_type, variant = 0, unused_fields = 0):
# Bias/explicit LOD/gradient:
if tex_inst == "txb":
print "(var_ref bias)",
elif tex_inst == "txl" or tex_inst == "txf":
elif tex_inst == "txl" or tex_inst == "txf" or tex_inst == "txs":
print "(var_ref lod)",
elif tex_inst == "txd":
print "((var_ref dPdx) (var_ref dPdy))",
@ -130,6 +139,19 @@ def end_function(fs, name):
#
# Takes a dictionary as an argument.
def generate_texture_functions(fs):
start_function("textureSize")
generate_fiu_sigs("txs", "1D")
generate_fiu_sigs("txs", "2D")
generate_fiu_sigs("txs", "3D")
generate_fiu_sigs("txs", "Cube")
generate_fiu_sigs("txs", "1DArray")
generate_fiu_sigs("txs", "2DArray")
generate_sigs("", "txs", "1DShadow")
generate_sigs("", "txs", "2DShadow")
generate_sigs("", "txs", "1DArrayShadow")
generate_sigs("", "txs", "2DArrayShadow")
end_function(fs, "textureSize")
start_function("texture")
generate_fiu_sigs("tex", "1D")
generate_fiu_sigs("tex", "2D")