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Memory management is now dynamic, detected by device.

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LOD Bias is now an exponential function
This commit is contained in:
Kearwood Gilbert
2013-04-04 18:26:17 -07:00
parent bc577e1769
commit bd0a773770
4 changed files with 35 additions and 3 deletions
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32
KREngine/kraken/KREngine.mm
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@@ -70,6 +70,37 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
{
#if TARGET_OS_IPHONE
mach_port_t host_port = mach_host_self();
mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
vm_size_t pagesize = 0;
vm_statistics_data_t vm_stat;
int total_ram = 256 * 1024 * 1024;
if(host_page_size(host_port, &pagesize) != KERN_SUCCESS) {
fprintf(stderr, "ERROR: Could not get VM page size.\n");
} else if(host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size) != KERN_SUCCESS) {
fprintf(stderr, "ERROR: Could not get VM stats.\n");
} else {
total_ram = (vm_stat.wire_count + vm_stat.active_count + vm_stat.inactive_count + vm_stat.free_count) * pagesize;
}
KRContext::KRENGINE_MAX_VBO_HANDLES = 10000;
KRContext::KRENGINE_MAX_SHADER_HANDLES = 100;
KRContext::KRENGINE_MAX_TEXTURE_HANDLES = 10000;
KRContext::KRENGINE_MAX_TEXTURE_DIM = 2048;
KRContext::KRENGINE_MIN_TEXTURE_DIM = 64;
KRContext::KRENGINE_MAX_TEXTURE_THROUGHPUT = 32000000;
KRContext::KRENGINE_MAX_VBO_MEM = total_ram * 2 / 4;
KRContext::KRENGINE_MAX_TEXTURE_MEM = total_ram * 1 / 4;
KRContext::KRENGINE_TARGET_TEXTURE_MEM_MAX = KRContext::KRENGINE_MAX_TEXTURE_MEM * 3 / 4;
KRContext::KRENGINE_TARGET_TEXTURE_MEM_MIN = KRContext::KRENGINE_MAX_TEXTURE_MEM / 2;
/*
BOOL isIpad = UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad;
BOOL isRetina = [[UIScreen mainScreen] scale] >= 2.0;
if(isIpad && isRetina) {
@@ -95,6 +126,7 @@ void kraken::set_parameter(const std::string &parameter_name, float parameter_va
KRContext::KRENGINE_MIN_TEXTURE_DIM = 64;
KRContext::KRENGINE_MAX_TEXTURE_THROUGHPUT = 32000000;
}
*/
#else
KRContext::KRENGINE_MAX_VBO_HANDLES = 10000;
KRContext::KRENGINE_MAX_VBO_MEM = 256000000;

2
KREngine/kraken/KRLODGroup.cpp
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@@ -87,7 +87,7 @@ bool KRLODGroup::getLODVisibility(const KRViewport &viewport)
} else {
// return (m_max_distance == 0); // FINDME, HACK - Test code to enable only the lowest LOD group
float lod_bias = viewport.getLODBias();
lod_bias = pow(2.0f, lod_bias);
lod_bias = pow(2.0f, -lod_bias);
// Compare square distances as sqrt is expensive
float sqr_distance = (viewport.getCameraPosition() - getWorldReferencePoint()).sqrMagnitude() * (lod_bias * lod_bias);
float sqr_min_distance = m_min_distance * m_min_distance;

2
KREngine/kraken/KRRenderSettings.cpp
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@@ -73,7 +73,7 @@ KRRenderSettings::KRRenderSettings()
dust_particle_intensity = 0.25f;
dust_particle_enable = false;
m_lodBias = 1.0f;
m_lodBias = 0.0f;
debug_display = KRENGINE_DEBUG_DISPLAY_NONE;
}

2
KREngine/kraken/KRViewport.cpp
View File

@@ -19,7 +19,7 @@ KRViewport::KRViewport()
m_size = KRVector2::One();
m_matProjection = KRMat4();
m_matView = KRMat4();
m_lodBias = 1.0f;
m_lodBias = 0.0f;
calculateDerivedValues();
}