Moved radixsort out of bgfx.
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ed383b0f1b
commit
08dddc5d74
52
src/bgfx.cpp
52
src/bgfx.cpp
@ -102,56 +102,6 @@ namespace bgfx
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_result[15] = 1.0f;
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}
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#define RADIX_BITS 11
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#define RADIX_PASSES 6
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#define RADIX_HISTOGRAM_SIZE (1<<RADIX_BITS)
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#define RADIX_BIT_MASK (RADIX_HISTOGRAM_SIZE-1)
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void radixSort(uint64_t* _keys, uint64_t* _tempKeys, uint16_t* _values, uint16_t* _tempValues, uint32_t _size)
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{
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uint16_t histogram[RADIX_HISTOGRAM_SIZE];
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uint16_t shift = 0;
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for (uint32_t pass = 0; pass < RADIX_PASSES; ++pass)
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{
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memset(histogram, 0, sizeof(uint16_t)*RADIX_HISTOGRAM_SIZE);
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for (uint32_t ii = 0; ii < _size; ++ii)
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{
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uint64_t key = _keys[ii];
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uint16_t index = (key>>shift)&RADIX_BIT_MASK;
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++histogram[index];
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}
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uint16_t offset = 0;
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for (uint32_t ii = 0; ii < RADIX_HISTOGRAM_SIZE; ++ii)
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{
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uint16_t count = histogram[ii];
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histogram[ii] = offset;
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offset += count;
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}
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for (uint32_t ii = 0; ii < _size; ++ii)
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{
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uint64_t key = _keys[ii];
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uint16_t index = (key>>shift)&RADIX_BIT_MASK;
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uint16_t dest = histogram[index]++;
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_tempKeys[dest] = key;
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uint16_t value = _values[ii];
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_tempValues[dest] = value;
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}
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uint64_t* swapKeys = _tempKeys;
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_tempKeys = _keys;
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_keys = swapKeys;
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uint16_t* swapValues = _tempValues;
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_tempValues = _values;
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_values = swapValues;
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shift += RADIX_BITS;
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}
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}
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void saveTga(const char* _filePath, uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _data)
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{
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FILE* file = fopen(_filePath, "wb");
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@ -471,7 +421,7 @@ namespace bgfx
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void Frame::sort()
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{
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radixSort(m_sortKeys, s_ctx.m_tempKeys, m_sortValues, s_ctx.m_tempValues, m_num);
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bx::radixSort64(m_sortKeys, s_ctx.m_tempKeys, m_sortValues, s_ctx.m_tempValues, m_num);
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}
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RendererType::Enum getRendererType()
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@ -53,6 +53,7 @@ extern void dbgPrintfData(const void* _data, uint32_t _size, const char* _format
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#include <bx/hash.h>
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#include <bx/ringbuffer.h>
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#include <bx/uint32_t.h>
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#include <bx/radixsort.h>
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#if BX_PLATFORM_WINDOWS
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# include <windows.h>
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@ -344,6 +344,14 @@ namespace bgfx
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success = eglMakeCurrent(m_display, m_surface, m_surface, m_context);
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BGFX_FATAL(success, Fatal::OPENGL_UnableToCreateContext, "Failed to set context.");
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# define GL_IMPORT(_optional, _proto, _func) \
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{ \
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_func = (_proto)eglGetProcAddress(#_func); \
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BGFX_FATAL(_optional || NULL != _func, bgfx::Fatal::OPENGL_UnableToCreateContext, "Failed to create OpenGLES context. eglGetProcAddress(\"%s\")", #_func); \
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}
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# include "glimports.h"
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# undef GL_IMPORT
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}
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#endif // BX_PLATFORM_
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}
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