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change sorting a bit

This commit is contained in:
David Rose 2009-03-12 15:17:03 +00:00
parent aa713463aa
commit 176d9ffd34
1 changed files with 34 additions and 20 deletions
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54
panda/src/display/frameBufferProperties.cxx
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@ -466,11 +466,17 @@ get_quality(const FrameBufferProperties &reqs) const {
quality -= 100000;
}
// Deduct for lacking multisamples altogether.
// Cost: 100,000
if (reqs._property[FBP_multisamples] != 0 && _property[FBP_multisamples] == 0) {
quality -= 100000;
}
// Deduct for not enough bits in depth, color, alpha, stencil, or accum.
// Cost: 10,000
for (int prop=FBP_depth_bits; prop<=FBP_accum_bits; prop++) {
if (reqs._property[prop] > _property[prop]) {
if (_property[prop] != 0 && reqs._property[prop] > _property[prop]) {
quality -= 10000;
}
}
@ -478,44 +484,52 @@ get_quality(const FrameBufferProperties &reqs) const {
// deduct for insufficient multisamples.
// Cost: 1,000
if (reqs._property[FBP_multisamples] > _property[FBP_multisamples]) {
if (_property[FBP_multisamples] != 0 &&
reqs._property[FBP_multisamples] > _property[FBP_multisamples]) {
quality -= 1000;
}
// Deduct for unrequested bitplanes.
// Cost: 10
// Cost: 50
for (int prop=FBP_depth_bits; prop<=FBP_accum_bits; prop++) {
if ((_property[prop]) && (reqs._property[prop] == 0)) {
quality -= 10;
quality -= 50;
}
}
for (int prop=FBP_aux_rgba; prop<=FBP_aux_float; prop++) {
int extra = _property[prop] > reqs._property[prop];
if (extra > 0) {
if (extra > 3) {
quality -= 30;
} else {
quality -= extra*10;
}
extra = min(extra, 3);
quality -= extra*50;
}
}
// Deduct for excessive resolution in any bitplane.
// Cost: 10
// Deduct for excessive resolution in any bitplane (unless we asked
// for only 1 bit, which is the convention for any amount).
// Cost: 50
for (int prop=FBP_depth_bits; prop<=FBP_accum_bits; prop++) {
if (reqs._property[prop] <= 8) {
if (_property[prop] > 8) {
quality -= 10;
}
}
if (reqs._property[prop] <= 32) {
if (_property[prop] > 32) {
quality -= 10;
}
if (reqs._property[prop] > 1 &&
_property[prop] > reqs._property[prop]) {
quality -= 50;
}
}
// Bonus for each depth bit.
// Extra: 3 per bit.
quality += 3 * _property[FBP_depth_bits];
// Bonus for each multisamples.
// Extra: 2 per sample.
quality += 2 * _property[FBP_multisamples];
// Bonus for each color, alpha, stencil, and accum.
// Extra: 1 per bit.
for (int prop=FBP_color_bits; prop<=FBP_accum_bits; prop++) {
quality += _property[prop];
}
return quality;
};