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Added png/jpg/tga/etc. to load texture utility function.

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This commit is contained in:
Branimir Karadžić 2015-05-13 22:54:52 -07:00
parent 0305ba0bda
commit 65ac7c33f5
1 changed files with 66 additions and 2 deletions
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68
examples/common/bgfx_utils.cpp
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@ -15,6 +15,7 @@ namespace stl = tinystl;
#include <bgfx.h>
#include <bx/readerwriter.h>
#include <bx/fpumath.h>
#include <bx/string.h>
#include "entry/entry.h"
#include <ib-compress/indexbufferdecompression.h>
@ -62,6 +63,26 @@ static const bgfx::Memory* loadMem(bx::FileReaderI* _reader, const char* _filePa
return NULL;
}
static void* loadMem(bx::FileReaderI* _reader, bx::ReallocatorI* _allocator, const char* _filePath, uint32_t* _size)
{
if (0 == bx::open(_reader, _filePath) )
{
uint32_t size = (uint32_t)bx::getSize(_reader);
void* data = BX_ALLOC(_allocator, size);
bx::read(_reader, data, size);
bx::close(_reader);
if (NULL != _size)
{
*_size = size;
}
return data;
}
return NULL;
}
static bgfx::ShaderHandle loadShader(bx::FileReaderI* _reader, const char* _name)
{
char filePath[512];
@ -112,15 +133,58 @@ bgfx::ProgramHandle loadProgram(const char* _vsName, const char* _fsName)
return loadProgram(entry::getFileReader(), _vsName, _fsName);
}
typedef unsigned char stbi_uc;
extern "C" stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp);
bgfx::TextureHandle loadTexture(bx::FileReaderI* _reader, const char* _name, uint32_t _flags, uint8_t _skip, bgfx::TextureInfo* _info)
{
char filePath[512];
strcpy(filePath, "textures/");
strcat(filePath, _name);
const bgfx::Memory* mem = loadMem(_reader, filePath);
if (NULL != bx::stristr(_name, ".dds")
|| NULL != bx::stristr(_name, ".pvr")
|| NULL != bx::stristr(_name, ".ktx") )
{
const bgfx::Memory* mem = loadMem(_reader, filePath);
return bgfx::createTexture(mem, _flags, _skip, _info);
}
return bgfx::createTexture(mem, _flags, _skip, _info);
bx::ReallocatorI* allocator = entry::getAllocator();
uint32_t size;
void* data = loadMem(_reader, allocator, filePath, &size);
int width;
int height;
int comp;
uint8_t* img = NULL;
img = stbi_load_from_memory( (uint8_t*)data, size, &width, &height, &comp, 4);
BX_FREE(allocator, data);
bgfx::TextureHandle handle = bgfx::createTexture2D(uint16_t(width), uint16_t(height), 1
, bgfx::TextureFormat::RGBA8
, _flags
, bgfx::copy(img, width*height*4)
);
free(img);
if (NULL != _info)
{
bgfx::calcTextureSize(*_info
, uint16_t(width)
, uint16_t(height)
, 0
, false
, 1
, bgfx::TextureFormat::RGBA8
);
}
return handle;
}
bgfx::TextureHandle loadTexture(const char* _name, uint32_t _flags, uint8_t _skip, bgfx::TextureInfo* _info)