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color mask

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This commit is contained in:
David Rose 2009-02-21 19:42:44 +00:00
parent ef44e25157
commit e4709607c3
5 changed files with 31420 additions and 806 deletions
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12
panda/src/tinydisplay/store_pixel.h
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@ -25,10 +25,10 @@ FNAME(store_pixel) (ZBuffer *zb, PIXEL &result, int r, int g, int b, int a) {
unsigned int fb = PIXEL_B(result); unsigned int fb = PIXEL_B(result);
unsigned int fa = PIXEL_A(result); unsigned int fa = PIXEL_A(result);
r = STORE_PIX_CLAMP(((unsigned int)r * OP_A(fr, r) >> 16) + ((unsigned int)fr * OP_B(fr, r) >> 16)); r = STORE_PIXEL_0(fr, ((unsigned int)r * OP_A(fr, r) >> 16) + ((unsigned int)fr * OP_B(fr, r) >> 16));
g = STORE_PIX_CLAMP(((unsigned int)g * OP_A(fg, g) >> 16) + ((unsigned int)fg * OP_B(fg, g) >> 16)); g = STORE_PIXEL_1(fg, ((unsigned int)g * OP_A(fg, g) >> 16) + ((unsigned int)fg * OP_B(fg, g) >> 16));
b = STORE_PIX_CLAMP(((unsigned int)b * OP_A(fb, b) >> 16) + ((unsigned int)fb * OP_B(fb, b) >> 16)); b = STORE_PIXEL_2(fg, ((unsigned int)b * OP_A(fb, b) >> 16) + ((unsigned int)fb * OP_B(fb, b) >> 16));
a = STORE_PIX_CLAMP(((unsigned int)a * OP_A(fa, a) >> 16) + ((unsigned int)fa * OP_B(fa, a) >> 16)); a = STORE_PIXEL_3(fg, ((unsigned int)a * OP_A(fa, a) >> 16) + ((unsigned int)fa * OP_B(fa, a) >> 16));
result = RGBA_TO_PIXEL(r, g, b, a); result = RGBA_TO_PIXEL(r, g, b, a);
} }
@ -36,3 +36,7 @@ FNAME(store_pixel) (ZBuffer *zb, PIXEL &result, int r, int g, int b, int a) {
#undef FNAME #undef FNAME
#undef OP_A #undef OP_A
#undef OP_B #undef OP_B
#undef STORE_PIXEL_0
#undef STORE_PIXEL_1
#undef STORE_PIXEL_2
#undef STORE_PIXEL_3

42
panda/src/tinydisplay/store_pixel.py
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@ -34,8 +34,17 @@ CodeTable = {
'mcalpha' : '0xffff - zb->blend_a', 'mcalpha' : '0xffff - zb->blend_a',
} }
def getFname(op_a, op_b):
return 'store_pixel_%s_%s' % (op_a, op_b) bitnames = 'rgba'
def getFname(op_a, op_b, mask):
maskname = ''
for b in range(4):
if (mask & (1 << b)):
maskname += bitnames[b]
else:
maskname += '0'
return 'store_pixel_%s_%s_%s' % (op_a, op_b, maskname)
# We write the code that actually instantiates the various # We write the code that actually instantiates the various
# pixel-storing functions to store_pixel_code.h. # pixel-storing functions to store_pixel_code.h.
@ -51,16 +60,22 @@ print >> table, ''
for op_a in Operands: for op_a in Operands:
for op_b in Operands: for op_b in Operands:
fname = getFname(op_a, op_b) for mask in range(0, 16):
print >> code, '#define FNAME(name) %s' % (fname) fname = getFname(op_a, op_b, mask)
print >> code, '#define OP_A(f, i) ((unsigned int)(%s))' % (CodeTable[op_a]) print >> code, '#define FNAME(name) %s' % (fname)
print >> code, '#define OP_B(f, i) ((unsigned int)(%s))' % (CodeTable[op_eb]) print >> code, '#define OP_A(f, i) ((unsigned int)(%s))' % (CodeTable[op_a])
print >> code, '#include "store_pixel.h"' print >> code, '#define OP_B(f, i) ((unsigned int)(%s))' % (CodeTable[op_b])
print >> code, '' for b in range(0, 4):
if (mask & (1 << b)):
print >> code, "#define STORE_PIXEL_%s(fr, r) STORE_PIX_CLAMP(r)" % (b)
else:
print >> code, "#define STORE_PIXEL_%s(fr, r) (fr)" % (b)
print >> code, '#include "store_pixel.h"'
print >> code, ''
# Now, generate the table of function pointers. # Now, generate the table of function pointers.
arraySize = '[%s][%s]' % (len(Operands), len(Operands)) arraySize = '[%s][%s][16]' % (len(Operands), len(Operands))
print >> table, 'extern const ZB_storePixelFunc store_pixel_funcs%s;' % (arraySize) print >> table, 'extern const ZB_storePixelFunc store_pixel_funcs%s;' % (arraySize)
print >> code, 'const ZB_storePixelFunc store_pixel_funcs%s = {' % (arraySize) print >> code, 'const ZB_storePixelFunc store_pixel_funcs%s = {' % (arraySize)
@ -68,8 +83,11 @@ print >> code, 'const ZB_storePixelFunc store_pixel_funcs%s = {' % (arraySize)
for op_a in Operands: for op_a in Operands:
print >> code, ' {' print >> code, ' {'
for op_b in Operands: for op_b in Operands:
fname = getFname(op_a, op_b) print >> code, ' {'
print >> code, ' %s,' % (fname) for mask in range(0, 16):
fname = getFname(op_a, op_b, mask)
print >> code, ' %s,' % (fname)
print >> code, ' },'
print >> code, ' },' print >> code, ' },'
print >> code, '};' print >> code, '};'

32146
panda/src/tinydisplay/store_pixel_code.h
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File diff suppressed because it is too large Load Diff

2
panda/src/tinydisplay/store_pixel_table.h
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@ -1,3 +1,3 @@
/* This file is generated code--do not edit. See store_pixel.py. */ /* This file is generated code--do not edit. See store_pixel.py. */
extern const ZB_storePixelFunc store_pixel_funcs[14][14]; extern const ZB_storePixelFunc store_pixel_funcs[14][14][16];

24
panda/src/tinydisplay/tinyGraphicsStateGuardian.cxx
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@ -822,11 +822,30 @@ begin_draw_primitives(const GeomPipelineReader *geom_reader,
} }
int color_write_state = 0; // cstore int color_write_state = 0; // cstore
const ColorWriteAttrib *target_color_write = DCAST(ColorWriteAttrib, _target_rs->get_attrib_def(ColorWriteAttrib::get_class_slot()));
unsigned int color_channels =
target_color_write->get_channels() & _color_write_mask;
if (color_channels != ColorWriteAttrib::C_all) {
// Implement a color mask.
int op_a = get_color_blend_op(ColorBlendAttrib::O_one);
int op_b = get_color_blend_op(ColorBlendAttrib::O_zero);
_c->zb->store_pix_func = store_pixel_funcs[op_a][op_b][color_channels];
color_write_state = 2; // cgeneral
}
const TransparencyAttrib *target_transparency = DCAST(TransparencyAttrib, _target_rs->get_attrib_def(TransparencyAttrib::get_class_slot())); const TransparencyAttrib *target_transparency = DCAST(TransparencyAttrib, _target_rs->get_attrib_def(TransparencyAttrib::get_class_slot()));
switch (target_transparency->get_mode()) { switch (target_transparency->get_mode()) {
case TransparencyAttrib::M_alpha: case TransparencyAttrib::M_alpha:
case TransparencyAttrib::M_dual: case TransparencyAttrib::M_dual:
color_write_state = 1; // cblend color_write_state = 1; // cblend
if (color_channels != ColorWriteAttrib::C_all) {
// Implement a color mask, with alpha blending.
int op_a = get_color_blend_op(ColorBlendAttrib::O_incoming_alpha);
int op_b = get_color_blend_op(ColorBlendAttrib::O_one_minus_incoming_alpha);
_c->zb->store_pix_func = store_pixel_funcs[op_a][op_b][color_channels];
color_write_state = 2; // cgeneral
}
break; break;
default: default:
@ -839,7 +858,7 @@ begin_draw_primitives(const GeomPipelineReader *geom_reader,
// the transparency set. // the transparency set.
int op_a = get_color_blend_op(target_color_blend->get_operand_a()); int op_a = get_color_blend_op(target_color_blend->get_operand_a());
int op_b = get_color_blend_op(target_color_blend->get_operand_b()); int op_b = get_color_blend_op(target_color_blend->get_operand_b());
_c->zb->store_pix_func = store_pixel_funcs[op_a][op_b]; _c->zb->store_pix_func = store_pixel_funcs[op_a][op_b][color_channels];
Colorf c = target_color_blend->get_color(); Colorf c = target_color_blend->get_color();
_c->zb->blend_r = (int)(c[0] * ZB_POINT_RED_MAX); _c->zb->blend_r = (int)(c[0] * ZB_POINT_RED_MAX);
_c->zb->blend_g = (int)(c[1] * ZB_POINT_GREEN_MAX); _c->zb->blend_g = (int)(c[1] * ZB_POINT_GREEN_MAX);
@ -849,9 +868,6 @@ begin_draw_primitives(const GeomPipelineReader *geom_reader,
color_write_state = 2; // cgeneral color_write_state = 2; // cgeneral
} }
const ColorWriteAttrib *target_color_write = DCAST(ColorWriteAttrib, _target_rs->get_attrib_def(ColorWriteAttrib::get_class_slot()));
unsigned int color_channels =
target_color_write->get_channels() & _color_write_mask;
if (color_channels == ColorWriteAttrib::C_off) { if (color_channels == ColorWriteAttrib::C_off) {
color_write_state = 3; // coff color_write_state = 3; // coff
} }