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Organized project to be more portable and require fewer steps to integrate into application projects in Xcode.

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Moved standard assets into bundles
This commit is contained in:
Kearwood Gilbert
2013-01-31 02:16:47 -08:00
parent 291461d912
commit ff63061722
199 changed files with 937 additions and 457 deletions
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236
KREngine/kraken/KRTexturePVR.cpp Normal file
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//
// KRTexturePVR.cpp
// KREngine
//
// Copyright 2012 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#include "KRTexturePVR.h"
#include "KRTextureManager.h"
#include "KREngine-common.h"
#define PVR_TEXTURE_FLAG_TYPE_MASK 0xff
static char gPVRTexIdentifier[5] = "PVR!";
enum
{
kPVRTextureFlagTypePVRTC_2 = 24,
kPVRTextureFlagTypePVRTC_4
};
typedef struct _PVRTexHeader
{
uint32_t headerLength;
uint32_t height;
uint32_t width;
uint32_t numMipmaps;
uint32_t flags;
uint32_t dataLength;
uint32_t bpp;
uint32_t bitmaskRed;
uint32_t bitmaskGreen;
uint32_t bitmaskBlue;
uint32_t bitmaskAlpha;
uint32_t pvrTag;
uint32_t numSurfs;
} PVRTexHeader;
KRTexturePVR::KRTexturePVR(KRContext &context, KRDataBlock *data, std::string name) : KRTexture2D(context, data, name) {
#if TARGET_OS_IPHONE
PVRTexHeader *header = (PVRTexHeader *)m_pData->getStart();
uint32_t formatFlags = header->flags & PVR_TEXTURE_FLAG_TYPE_MASK;
if (formatFlags == kPVRTextureFlagTypePVRTC_4) {
m_internalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
} else if(formatFlags == kPVRTextureFlagTypePVRTC_2) {
m_internalFormat = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
} else {
assert(false);
}
uint32_t pvrTag = header->pvrTag;
if (gPVRTexIdentifier[0] != ((pvrTag >> 0) & 0xff) ||
gPVRTexIdentifier[1] != ((pvrTag >> 8) & 0xff) ||
gPVRTexIdentifier[2] != ((pvrTag >> 16) & 0xff) ||
gPVRTexIdentifier[3] != ((pvrTag >> 24) & 0xff)) {
assert(false);
}
m_iWidth = header->width; // Note: call __builtin_bswap32 when needed to switch endianness
m_iHeight = header->height;
m_bHasAlpha = header->bitmaskAlpha;
uint8_t *bytes = ((uint8_t *)m_pData->getStart()) + sizeof(PVRTexHeader);
uint32_t dataLength = header->dataLength, dataOffset = 0, dataSize = 0;
uint32_t width = m_iWidth, height = m_iHeight, bpp = 4;
uint32_t blockSize = 0, widthBlocks = 0, heightBlocks = 0;
// Calculate the data size for each texture level and respect the minimum number of blocks
while(dataOffset < dataLength) {
if (formatFlags == kPVRTextureFlagTypePVRTC_4) {
blockSize = 4 * 4; // Pixel by pixel block size for 4bpp
widthBlocks = width / 4;
heightBlocks = height / 4;
bpp = 4;
} else {
blockSize = 8 * 4; // Pixel by pixel block size for 2bpp
widthBlocks = width / 8;
heightBlocks = height / 4;
bpp = 2;
}
// Clamp to minimum number of blocks
if (widthBlocks < 2) {
widthBlocks = 2;
}
if (heightBlocks < 2) {
heightBlocks = 2;
}
dataSize = widthBlocks * heightBlocks * ((blockSize * bpp) / 8);
dataBlockStruct newBlock;
newBlock.start = bytes+dataOffset;
newBlock.length = dataSize;
m_blocks.push_back(newBlock);
dataOffset += dataSize;
width = width >> 1;
if(width < 1) {
width = 1;
}
height = height >> 1;
if(height < 1) {
height = 1;
}
}
m_max_lod_max_dim = m_iWidth > m_iHeight ? m_iWidth : m_iHeight;
m_min_lod_max_dim = width > height ? width : height;
#endif
}
KRTexturePVR::~KRTexturePVR() {
}
long KRTexturePVR::getMemRequiredForSize(int max_dim)
{
int target_dim = max_dim;
if(target_dim < m_min_lod_max_dim) target_dim = target_dim;
// Determine how much memory will be consumed
int width = m_iWidth;
int height = m_iHeight;
long memoryRequired = 0;
for(std::list<dataBlockStruct>::iterator itr = m_blocks.begin(); itr != m_blocks.end(); itr++) {
dataBlockStruct block = *itr;
if(width <= target_dim && height <= target_dim) {
memoryRequired += block.length;
}
width = width >> 1;
if(width < 1) {
width = 1;
}
height = height >> 1;
if(height < 1) {
height = 1;
}
}
return memoryRequired;
}
bool KRTexturePVR::uploadTexture(GLenum target, int lod_max_dim, int &current_lod_max_dim, long &textureMemUsed)
{
int target_dim = lod_max_dim;
if(target_dim < m_min_lod_max_dim) target_dim = m_min_lod_max_dim;
GLenum err;
if(m_blocks.size() == 0) {
return false;
}
// Determine how much memory will be consumed
int width = m_iWidth;
int height = m_iHeight;
long memoryRequired = 0;
// Upload texture data
int i=0;
for(std::list<dataBlockStruct>::iterator itr = m_blocks.begin(); itr != m_blocks.end(); itr++) {
dataBlockStruct block = *itr;
if(width <= target_dim && height <= target_dim) {
memoryRequired += block.length;
if(width > current_lod_max_dim) {
current_lod_max_dim = width;
}
if(height > current_lod_max_dim) {
current_lod_max_dim = height;
}
glCompressedTexImage2D(target, i, m_internalFormat, width, height, 0, block.length, block.start);
err = glGetError();
if (err != GL_NO_ERROR) {
assert(false);
return false;
}
i++;
}
width = width >> 1;
if(width < 1) {
width = 1;
}
height = height >> 1;
if(height < 1) {
height = 1;
}
}
textureMemUsed += memoryRequired;
getContext().getTextureManager()->memoryChanged(memoryRequired);
getContext().getTextureManager()->addMemoryTransferredThisFrame(memoryRequired);
return true;
}
std::string KRTexturePVR::getExtension()
{
return "pvr";
}