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Use TextureInfo for caclTextureSize.

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This commit is contained in:
bkaradzic 2013-01-05 14:33:05 -08:00
parent 28d0d973b3
commit 96199abe81
3 changed files with 23 additions and 15 deletions
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8
include/bgfx.h
View file

@ -428,9 +428,12 @@ namespace bgfx
struct TextureInfo
{
TextureFormat::Enum format;
uint32_t storageSize;
uint16_t width;
uint16_t height;
uint16_t depth;
uint8_t numMips;
uint8_t bitsPerPixel;
};
/// Vertex declaration.
@ -605,11 +608,8 @@ namespace bgfx
/// Destroy program.
void destroyProgram(ProgramHandle _handle);
/// Returns number of bits per pixel.
uint32_t getBitsPerPixel(TextureFormat::Enum _format);
/// Calculate amount of memory required for texture.
uint32_t calcTextureSize(uint16_t _width, uint16_t _height, uint16_t _depth, uint8_t _numMips, TextureFormat::Enum _format);
void calcTextureSize(TextureInfo& _info, uint16_t _width, uint16_t _height, uint16_t _depth, uint8_t _numMips, TextureFormat::Enum _format);
/// Create texture from memory buffer.
TextureHandle createTexture(const Memory* _mem, uint32_t _flags = BGFX_TEXTURE_NONE, TextureInfo* _info = NULL);

16
src/bgfx.cpp
View file

@ -909,16 +909,12 @@ namespace bgfx
32, // RGB10A2
};
uint32_t getBitsPerPixel(TextureFormat::Enum _format)
{
return s_bitsPerPixel[_format];
}
uint32_t calcTextureSize(uint16_t _width, uint16_t _height, uint16_t _depth, uint8_t _numMips, TextureFormat::Enum _format)
void calcTextureSize(TextureInfo& _info, uint16_t _width, uint16_t _height, uint16_t _depth, uint8_t _numMips, TextureFormat::Enum _format)
{
uint32_t width = _width;
uint32_t height = _height;
uint32_t depth = _depth;
uint32_t bpp = s_bitsPerPixel[_format];
uint32_t size = 0;
@ -935,7 +931,13 @@ namespace bgfx
depth >>= 1;
}
return size;
_info.format = _format;
_info.storageSize = size;
_info.width = _width;
_info.height = _height;
_info.depth = _depth;
_info.numMips = _numMips;
_info.bitsPerPixel = bpp;
}
TextureHandle createTexture(const Memory* _mem, uint32_t _flags, TextureInfo* _info)

14
src/bgfx_p.h
View file

@ -1950,17 +1950,23 @@ namespace bgfx
Dds dds;
if (parseDds(dds, _mem) )
{
_info->format = dds.m_type;
_info->width = (uint16_t)dds.m_width;
_info->height = (uint16_t)dds.m_height;
_info->depth = (uint16_t)dds.m_depth;
calcTextureSize(*_info
, (uint16_t)dds.m_width
, (uint16_t)dds.m_height
, (uint16_t)dds.m_depth
, dds.m_numMips
, dds.m_type
);
}
else
{
_info->format = TextureFormat::Unknown;
_info->storageSize = 0;
_info->width = 0;
_info->height = 0;
_info->depth = 0;
_info->numMips = 0;
_info->bitsPerPixel = 0;
}
}