mirror of https://github.com/axmolengine/axmol.git
606 lines
17 KiB
C++
606 lines
17 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2010 cocos2d-x.org
|
|
|
|
http://www.cocos2d-x.org
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/*
|
|
* Support for RGBA_4_4_4_4 and RGBA_5_5_5_1 was copied from:
|
|
* https://devforums.apple.com/message/37855#37855 by a1studmuffin
|
|
*/
|
|
|
|
#include "CCTexture2D.h"
|
|
#include <GLES/glext.h>
|
|
|
|
#include "ccConfig.h"
|
|
#include "ccMacros.h"
|
|
#include "CCTexture2D.h"
|
|
#include "CCPVRTexture.h"
|
|
#include "CCConfiguration.h"
|
|
|
|
|
|
#if CC_FONT_LABEL_SUPPORT
|
|
// FontLabel support
|
|
/// @todo #include "FontManager.h"
|
|
/// @todo #include "FontLabelStringDrawing.h"
|
|
#endif// CC_FONT_LABEL_SUPPORT
|
|
|
|
|
|
static unsigned int nextPOT(unsigned int x)
|
|
{
|
|
x = x - 1;
|
|
x = x | (x >> 1);
|
|
x = x | (x >> 2);
|
|
x = x | (x >> 4);
|
|
x = x | (x >> 8);
|
|
x = x | (x >>16);
|
|
return x + 1;
|
|
}
|
|
|
|
//CLASS IMPLEMENTATIONS:
|
|
|
|
|
|
// If the image has alpha, you can create RGBA8 (32-bit) or RGBA4 (16-bit) or RGB5A1 (16-bit)
|
|
// Default is: RGBA8888 (32-bit textures)
|
|
static CCTexture2DPixelFormat g_defaultAlphaPixelFormat = kCCTexture2DPixelFormat_Default;
|
|
|
|
CCTexture2D::CCTexture2D()
|
|
{
|
|
|
|
}
|
|
|
|
CCTexture2D::~CCTexture2D()
|
|
{
|
|
CCLOGINFO("cocos2d: deallocing CCTexture2D %u.", m_uName);
|
|
if(m_uName)
|
|
glDeleteTextures(1, &m_uName);
|
|
}
|
|
|
|
CCTexture2DPixelFormat CCTexture2D::getPixelFormat()
|
|
{
|
|
return m_ePixelFormat;
|
|
}
|
|
|
|
UINT32 CCTexture2D::getPixelsWide()
|
|
{
|
|
return m_uPixelsWide;
|
|
}
|
|
|
|
UINT32 CCTexture2D::getPixelsHigh()
|
|
{
|
|
return m_uPixelsHigh;
|
|
}
|
|
|
|
GLuint CCTexture2D::getName()
|
|
{
|
|
return m_uName;
|
|
}
|
|
|
|
CGSize CCTexture2D::getContentSize()
|
|
{
|
|
return m_tContentSize;
|
|
}
|
|
|
|
GLfloat CCTexture2D::getMaxS()
|
|
{
|
|
return m_fMaxS;
|
|
}
|
|
|
|
void CCTexture2D::setMaxS(GLfloat maxS)
|
|
{
|
|
m_fMaxS = maxS;
|
|
}
|
|
|
|
GLfloat CCTexture2D::getMaxT()
|
|
{
|
|
return m_fMaxT;
|
|
}
|
|
|
|
void CCTexture2D::setMaxT(GLfloat maxT)
|
|
{
|
|
m_fMaxT = maxT;
|
|
}
|
|
|
|
bool CCTexture2D::getHasPremultipliedAlpha()
|
|
{
|
|
return m_bHasPremultipliedAlpha;
|
|
}
|
|
|
|
CCTexture2D * CCTexture2D::initWithData(const void *data, CCTexture2DPixelFormat pixelFormat, UInt32 pixelsWide, UInt32 pixelsHigh, CGSize contentSize)
|
|
{
|
|
glGenTextures(1, &m_uName);
|
|
glBindTexture(GL_TEXTURE_2D, m_uName);
|
|
|
|
this->setAntiAliasTexParameters();
|
|
|
|
// Specify OpenGL texture image
|
|
|
|
switch(pixelFormat)
|
|
{
|
|
case kCCTexture2DPixelFormat_RGBA8888:
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixelsWide, pixelsHigh, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
|
break;
|
|
case kCCTexture2DPixelFormat_RGBA4444:
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixelsWide, pixelsHigh, 0, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, data);
|
|
break;
|
|
case kCCTexture2DPixelFormat_RGB5A1:
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pixelsWide, pixelsHigh, 0, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1, data);
|
|
break;
|
|
case kCCTexture2DPixelFormat_RGB565:
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, pixelsWide, pixelsHigh, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, data);
|
|
break;
|
|
case kCCTexture2DPixelFormat_A8:
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, pixelsWide, pixelsHigh, 0, GL_ALPHA, GL_UNSIGNED_BYTE, data);
|
|
break;
|
|
default:;
|
|
NSAssert(0, "NSInternalInconsistencyException");
|
|
|
|
}
|
|
|
|
m_tContentSize = contentSize;
|
|
m_uPixelsWide = pixelsWide;
|
|
m_uPixelsHigh = pixelsHigh;
|
|
m_ePixelFormat = pixelFormat;
|
|
m_fMaxS = contentSize.width / static_cast<float>(pixelsWide);
|
|
m_fMaxT = contentSize.height / static_cast<float>(pixelsHigh);
|
|
|
|
m_bHasPremultipliedAlpha = false;
|
|
|
|
return this;
|
|
}
|
|
|
|
|
|
std::string CCTexture2D::description(void)
|
|
{
|
|
char des[100];
|
|
sprintf_s(des, 100, "<CCTexture2D | Name = %u | Dimensions = %u x %u | Coordinates = (%.2f, %.2f)>", m_uName, m_uPixelsWide, m_uPixelsHigh, m_fMaxS, m_fMaxT);
|
|
std::string ret(des);
|
|
|
|
return ret;
|
|
}
|
|
|
|
// implementation CCTexture2D (Image)
|
|
|
|
/** @todo
|
|
- (id) initWithImage:(UIImage *)uiImage
|
|
{
|
|
NSUInteger POTWide, POTHigh;
|
|
CGImageRef CGImage;
|
|
|
|
CGImage = uiImage.CGImage;
|
|
|
|
if(CGImage == NULL) {
|
|
CCLOG(@"cocos2d: CCTexture2D. Can't create Texture. UIImage is nil");
|
|
[self release];
|
|
return nil;
|
|
}
|
|
|
|
CCConfiguration *conf = [CCConfiguration sharedConfiguration];
|
|
|
|
#if CC_TEXTURE_NPOT_SUPPORT
|
|
if( [conf supportsNPOT] ) {
|
|
POTWide = CGImageGetWidth(CGImage);
|
|
POTHigh = CGImageGetHeight(CGImage);
|
|
|
|
} else
|
|
#endif
|
|
{
|
|
POTWide = nextPOT(CGImageGetWidth(CGImage));
|
|
POTHigh = nextPOT(CGImageGetHeight(CGImage));
|
|
}
|
|
|
|
unsigned maxTextureSize = [conf maxTextureSize];
|
|
if( POTHigh > maxTextureSize || POTWide > maxTextureSize ) {
|
|
CCLOG(@"cocos2d: WARNING: Image (%u x %u) is bigger than the supported %u x %u", POTWide, POTHigh, maxTextureSize, maxTextureSize);
|
|
[self release];
|
|
return nil;
|
|
}
|
|
|
|
// always load premultiplied images
|
|
self = [self initPremultipliedATextureWithImage:CGImage pixelsWide:POTWide pixelsHigh:POTHigh];
|
|
|
|
return self;
|
|
}
|
|
|
|
-(id) initPremultipliedATextureWithImage:(CGImageRef)image pixelsWide:(NSUInteger)POTWide pixelsHigh:(NSUInteger)POTHigh
|
|
{
|
|
NSUInteger i;
|
|
CGContextRef context = nil;
|
|
void* data = nil;;
|
|
CGColorSpaceRef colorSpace;
|
|
void* tempData;
|
|
unsigned int* inPixel32;
|
|
unsigned short* outPixel16;
|
|
BOOL hasAlpha;
|
|
CGImageAlphaInfo info;
|
|
CGSize imageSize;
|
|
CCTexture2DPixelFormat pixelFormat;
|
|
|
|
info = CGImageGetAlphaInfo(image);
|
|
hasAlpha = ((info == kCGImageAlphaPremultipliedLast) || (info == kCGImageAlphaPremultipliedFirst) || (info == kCGImageAlphaLast) || (info == kCGImageAlphaFirst) ? YES : NO);
|
|
|
|
size_t bpp = CGImageGetBitsPerComponent(image);
|
|
colorSpace = CGImageGetColorSpace(image);
|
|
|
|
if(colorSpace) {
|
|
if(hasAlpha || bpp >= 8)
|
|
pixelFormat = defaultAlphaPixelFormat;
|
|
else {
|
|
CCLOG(@"cocos2d: CCTexture2D: Using RGB565 texture since image has no alpha");
|
|
pixelFormat = kCCTexture2DPixelFormat_RGB565;
|
|
}
|
|
} else {
|
|
// NOTE: No colorspace means a mask image
|
|
CCLOG(@"cocos2d: CCTexture2D: Using A8 texture since image is a mask");
|
|
pixelFormat = kCCTexture2DPixelFormat_A8;
|
|
}
|
|
|
|
imageSize = CGSizeMake(CGImageGetWidth(image), CGImageGetHeight(image));
|
|
|
|
// Create the bitmap graphics context
|
|
|
|
switch(pixelFormat) {
|
|
case kCCTexture2DPixelFormat_RGBA8888:
|
|
case kCCTexture2DPixelFormat_RGBA4444:
|
|
case kCCTexture2DPixelFormat_RGB5A1:
|
|
colorSpace = CGColorSpaceCreateDeviceRGB();
|
|
data = malloc(POTHigh * POTWide * 4);
|
|
info = hasAlpha ? kCGImageAlphaPremultipliedLast : kCGImageAlphaNoneSkipLast;
|
|
context = CGBitmapContextCreate(data, POTWide, POTHigh, 8, 4 * POTWide, colorSpace, info | kCGBitmapByteOrder32Big);
|
|
CGColorSpaceRelease(colorSpace);
|
|
break;
|
|
case kCCTexture2DPixelFormat_RGB565:
|
|
colorSpace = CGColorSpaceCreateDeviceRGB();
|
|
data = malloc(POTHigh * POTWide * 4);
|
|
info = kCGImageAlphaNoneSkipLast;
|
|
context = CGBitmapContextCreate(data, POTWide, POTHigh, 8, 4 * POTWide, colorSpace, info | kCGBitmapByteOrder32Big);
|
|
CGColorSpaceRelease(colorSpace);
|
|
break;
|
|
case kCCTexture2DPixelFormat_A8:
|
|
data = malloc(POTHigh * POTWide);
|
|
info = kCGImageAlphaOnly;
|
|
context = CGBitmapContextCreate(data, POTWide, POTHigh, 8, POTWide, NULL, info);
|
|
break;
|
|
default:
|
|
[NSException raise:NSInternalInconsistencyException format:@"Invalid pixel format"];
|
|
}
|
|
|
|
|
|
CGContextClearRect(context, CGRectMake(0, 0, POTWide, POTHigh));
|
|
CGContextTranslateCTM(context, 0, POTHigh - imageSize.height);
|
|
CGContextDrawImage(context, CGRectMake(0, 0, CGImageGetWidth(image), CGImageGetHeight(image)), image);
|
|
|
|
// Repack the pixel data into the right format
|
|
|
|
if(pixelFormat == kCCTexture2DPixelFormat_RGB565) {
|
|
//Convert "RRRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA" to "RRRRRGGGGGGBBBBB"
|
|
tempData = malloc(POTHigh * POTWide * 2);
|
|
inPixel32 = (unsigned int*)data;
|
|
outPixel16 = (unsigned short*)tempData;
|
|
for(i = 0; i < POTWide * POTHigh; ++i, ++inPixel32)
|
|
*outPixel16++ = ((((*inPixel32 >> 0) & 0xFF) >> 3) << 11) | ((((*inPixel32 >> 8) & 0xFF) >> 2) << 5) | ((((*inPixel32 >> 16) & 0xFF) >> 3) << 0);
|
|
free(data);
|
|
data = tempData;
|
|
|
|
}
|
|
else if (pixelFormat == kCCTexture2DPixelFormat_RGBA4444) {
|
|
//Convert "RRRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA" to "RRRRGGGGBBBBAAAA"
|
|
tempData = malloc(POTHigh * POTWide * 2);
|
|
inPixel32 = (unsigned int*)data;
|
|
outPixel16 = (unsigned short*)tempData;
|
|
for(i = 0; i < POTWide * POTHigh; ++i, ++inPixel32)
|
|
*outPixel16++ =
|
|
((((*inPixel32 >> 0) & 0xFF) >> 4) << 12) | // R
|
|
((((*inPixel32 >> 8) & 0xFF) >> 4) << 8) | // G
|
|
((((*inPixel32 >> 16) & 0xFF) >> 4) << 4) | // B
|
|
((((*inPixel32 >> 24) & 0xFF) >> 4) << 0); // A
|
|
|
|
|
|
free(data);
|
|
data = tempData;
|
|
|
|
}
|
|
else if (pixelFormat == kCCTexture2DPixelFormat_RGB5A1) {
|
|
//Convert "RRRRRRRRRGGGGGGGGBBBBBBBBAAAAAAAA" to "RRRRRGGGGGBBBBBA"
|
|
tempData = malloc(POTHigh * POTWide * 2);
|
|
inPixel32 = (unsigned int*)data;
|
|
outPixel16 = (unsigned short*)tempData;
|
|
for(i = 0; i < POTWide * POTHigh; ++i, ++inPixel32)
|
|
*outPixel16++ =
|
|
((((*inPixel32 >> 0) & 0xFF) >> 3) << 11) | // R
|
|
((((*inPixel32 >> 8) & 0xFF) >> 3) << 6) | // G
|
|
((((*inPixel32 >> 16) & 0xFF) >> 3) << 1) | // B
|
|
((((*inPixel32 >> 24) & 0xFF) >> 7) << 0); // A
|
|
|
|
|
|
free(data);
|
|
data = tempData;
|
|
}
|
|
self = [self initWithData:data pixelFormat:pixelFormat pixelsWide:POTWide pixelsHigh:POTHigh contentSize:imageSize];
|
|
|
|
// should be after calling super init
|
|
_hasPremultipliedAlpha = (info == kCGImageAlphaPremultipliedLast || info == kCGImageAlphaPremultipliedFirst);
|
|
|
|
CGContextRelease(context);
|
|
free(data);
|
|
|
|
return self;
|
|
}*/
|
|
|
|
// implementation CCTexture2D (Text)
|
|
CCTexture2D * CCTexture2D::initWithString(const std::string & str, const std::string & fontName, GLfloat fontSize)
|
|
{
|
|
/** @todo about UIFont
|
|
CGSize dim;
|
|
|
|
#if CC_FONT_LABEL_SUPPORT
|
|
ZFont *zFont = [[FontManager sharedManager] zFontWithName:name pointSize:size];
|
|
if (zFont != nil)
|
|
dim = [string sizeWithZFont:zFont];
|
|
else
|
|
#endif
|
|
dim = [string sizeWithFont:[UIFont fontWithName:name size:size]];
|
|
|
|
return [self initWithString:string dimensions:dim alignment:UITextAlignmentCenter fontName:name fontSize:size];
|
|
}
|
|
|
|
- (id) initWithString:(string & )string dimensions:(CGSize)dimensions alignment:(UITextAlignment)alignment fontName:(string & )name fontSize:(CGFloat)size
|
|
{
|
|
NSUInteger width,
|
|
height,
|
|
i;
|
|
CGContextRef context;
|
|
void* data;
|
|
CGColorSpaceRef colorSpace;
|
|
id uiFont;
|
|
|
|
width = dimensions.width;
|
|
if((width != 1) && (width & (width - 1))) {
|
|
i = 1;
|
|
while(i < width)
|
|
i *= 2;
|
|
width = i;
|
|
}
|
|
height = dimensions.height;
|
|
if((height != 1) && (height & (height - 1))) {
|
|
i = 1;
|
|
while(i < height)
|
|
i *= 2;
|
|
height = i;
|
|
}
|
|
|
|
colorSpace = CGColorSpaceCreateDeviceGray();
|
|
data = calloc(height, width);
|
|
context = CGBitmapContextCreate(data, width, height, 8, width, colorSpace, kCGImageAlphaNone);
|
|
CGColorSpaceRelease(colorSpace);
|
|
|
|
|
|
CGContextSetGrayFillColor(context, 1.0f, 1.0f);
|
|
CGContextTranslateCTM(context, 0.0f, height);
|
|
CGContextScaleCTM(context, 1.0f, -1.0f); //NOTE: NSString draws in UIKit referential i.e. renders upside-down compared to CGBitmapContext referential
|
|
UIGraphicsPushContext(context);
|
|
|
|
|
|
#if CC_FONT_LABEL_SUPPORT
|
|
uiFont = [[FontManager sharedManager] zFontWithName:name pointSize:size];
|
|
if (uiFont != nil)
|
|
[string drawInRect:CGRectMake(0, 0, dimensions.width, dimensions.height) withZFont:uiFont lineBreakMode:UILineBreakModeWordWrap alignment:alignment];
|
|
else
|
|
#endif // CC_FONT_LABEL_SUPPORT
|
|
{
|
|
uiFont = [UIFont fontWithName:name size:size];
|
|
[string drawInRect:CGRectMake(0, 0, dimensions.width, dimensions.height) withFont:uiFont lineBreakMode:UILineBreakModeWordWrap alignment:alignment];
|
|
}
|
|
if( ! uiFont )
|
|
CCLOG(@"cocos2d: Texture2D: Font '%@' not found", name);
|
|
UIGraphicsPopContext();
|
|
|
|
self = [self initWithData:data pixelFormat:kCCTexture2DPixelFormat_A8 pixelsWide:width pixelsHigh:height contentSize:dimensions];
|
|
|
|
CGContextRelease(context);
|
|
free(data);
|
|
*/
|
|
return this;
|
|
}
|
|
|
|
|
|
// implementation CCTexture2D (Drawing)
|
|
|
|
void CCTexture2D::drawAtPoint(CGPoint point)
|
|
{
|
|
GLfloat coordinates[] = {
|
|
0.0f, m_fMaxT,
|
|
m_fMaxS,m_fMaxT,
|
|
0.0f, 0.0f,
|
|
m_fMaxS,0.0f };
|
|
|
|
GLfloat width = (GLfloat)m_uPixelsWide * m_fMaxS,
|
|
height = (GLfloat)m_uPixelsHigh * m_fMaxT;
|
|
|
|
#if 0
|
|
GLfloat vertices[] = {
|
|
-width / 2 + point.x, -height / 2 + point.y, 0.0f,
|
|
width / 2 + point.x, -height / 2 + point.y, 0.0f,
|
|
-width / 2 + point.x, height / 2 + point.y, 0.0f,
|
|
width / 2 + point.x, height / 2 + point.y, 0.0f };
|
|
|
|
#else // anchor is done by cocos2d automagically
|
|
GLfloat vertices[] = {
|
|
point.x, point.y, 0.0f,
|
|
width + point.x, point.y, 0.0f,
|
|
point.x, height + point.y, 0.0f,
|
|
width + point.x, height + point.y, 0.0f };
|
|
#endif
|
|
|
|
glBindTexture(GL_TEXTURE_2D, m_uName);
|
|
glVertexPointer(3, GL_FLOAT, 0, vertices);
|
|
glTexCoordPointer(2, GL_FLOAT, 0, coordinates);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
}
|
|
|
|
void CCTexture2D::drawInRect(CGRect rect)
|
|
{
|
|
GLfloat coordinates[] = {
|
|
0.0f, m_fMaxT,
|
|
m_fMaxS,m_fMaxT,
|
|
0.0f, 0.0f,
|
|
m_fMaxS,0.0f };
|
|
|
|
GLfloat vertices[] = { rect.origin.x, rect.origin.y, /*0.0f,*/
|
|
rect.origin.x + rect.size.width, rect.origin.y, /*0.0f,*/
|
|
rect.origin.x, rect.origin.y + rect.size.height, /*0.0f,*/
|
|
rect.origin.x + rect.size.width, rect.origin.y + rect.size.height, /*0.0f*/ };
|
|
|
|
glBindTexture(GL_TEXTURE_2D, m_uName);
|
|
glVertexPointer(2, GL_FLOAT, 0, vertices);
|
|
glTexCoordPointer(2, GL_FLOAT, 0, coordinates);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
}
|
|
|
|
|
|
// implementation CCTexture2D (PVRTC)
|
|
|
|
CCTexture2D * CCTexture2D::initWithPVRTCData(const void *data, int level, int bpp, bool hasAlpha, int length)
|
|
{
|
|
if( !(CCConfiguration::sharedConfiguration()->isSupportsPVRTC()) )
|
|
{
|
|
CCLOG("cocos2d: WARNING: PVRTC images is not supported.");
|
|
this->release();
|
|
return NULL;
|
|
}
|
|
|
|
glGenTextures(1, &m_uName);
|
|
glBindTexture(GL_TEXTURE_2D, m_uName);
|
|
|
|
this->setAntiAliasTexParameters();
|
|
|
|
GLenum format;
|
|
GLsizei size = length * length * bpp / 8;
|
|
if(hasAlpha) {
|
|
format = (bpp == 4) ? GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG : GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
|
|
} else {
|
|
format = (bpp == 4) ? GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG : GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
|
|
}
|
|
if(size < 32) {
|
|
size = 32;
|
|
}
|
|
glCompressedTexImage2D(GL_TEXTURE_2D, level, format, length, length, 0, size, data);
|
|
|
|
m_tContentSize = CGSizeMake(static_cast<float>(length), static_cast<float>(length));
|
|
m_uPixelsWide = length;
|
|
m_uPixelsHigh = length;
|
|
m_fMaxS = 1.0f;
|
|
m_fMaxT = 1.0f;
|
|
|
|
return this;
|
|
}
|
|
|
|
CCTexture2D * CCTexture2D::initWithPVRTCFile(const char* file)
|
|
{
|
|
if (! CCConfiguration::sharedConfiguration()->isSupportsPVRTC())
|
|
{
|
|
CCLOG("cocos2d: WARNING: PVRTC images is not supported");
|
|
this->release();
|
|
return NULL;
|
|
}
|
|
|
|
CCPVRTexture *pvr = new CCPVRTexture();
|
|
pvr = pvr->initWithContentsOfFile(file);
|
|
if( pvr )
|
|
{
|
|
pvr->setRetainName(true); // don't dealloc texture on release
|
|
|
|
m_uName = pvr->getName(); // texture id
|
|
m_fMaxS = 1.0f;
|
|
m_fMaxT = 1.0f;
|
|
m_uPixelsWide = pvr->getWidth(); // width
|
|
m_uPixelsHigh = pvr->getHeight(); // height
|
|
/// be careful : UINT32 to float
|
|
m_tContentSize = CGSizeMake(static_cast<float>(m_uPixelsWide), static_cast<float>(m_uPixelsHigh));
|
|
|
|
pvr->release();
|
|
|
|
this->setAntiAliasTexParameters();
|
|
}
|
|
else
|
|
{
|
|
CCLOG("cocos2d: Couldn't load PVR image");
|
|
this->release();
|
|
return NULL;
|
|
}
|
|
return this;
|
|
}
|
|
|
|
//
|
|
// Use to apply MIN/MAG filter
|
|
//
|
|
// implementation CCTexture2D (GLFilter)
|
|
|
|
void CCTexture2D::generateMipmap()
|
|
{
|
|
NSAssert( m_uPixelsWide == nextPOT(m_uPixelsWide) && m_uPixelsHigh == nextPOT(m_uPixelsHigh), "Mimpap texture only works in POT textures");
|
|
glBindTexture( GL_TEXTURE_2D, this->m_uName );
|
|
/// @todo include what??? glGenerateMipmapOES(GL_TEXTURE_2D);
|
|
}
|
|
|
|
void CCTexture2D::setTexParameters(ccTexParams *texParams)
|
|
{
|
|
NSAssert( (m_uPixelsWide == nextPOT(m_uPixelsWide) && m_uPixelsHigh == nextPOT(m_uPixelsHigh)) ||
|
|
(texParams->wrapS == GL_CLAMP_TO_EDGE && texParams->wrapT == GL_CLAMP_TO_EDGE),
|
|
"GL_CLAMP_TO_EDGE should be used in NPOT textures");
|
|
glBindTexture( GL_TEXTURE_2D, this->m_uName );
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, texParams->minFilter );
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, texParams->magFilter );
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, texParams->wrapS );
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, texParams->wrapT );
|
|
}
|
|
|
|
void CCTexture2D::setAliasTexParameters()
|
|
{
|
|
ccTexParams texParams = { GL_NEAREST, GL_NEAREST, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE };
|
|
this->setTexParameters(&texParams);
|
|
}
|
|
|
|
void CCTexture2D::setAntiAliasTexParameters()
|
|
{
|
|
ccTexParams texParams = { GL_LINEAR, GL_LINEAR, GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE };
|
|
this->setTexParameters(&texParams);
|
|
}
|
|
|
|
//
|
|
// Texture options for images that contains alpha
|
|
//
|
|
// implementation CCTexture2D (PixelFormat)
|
|
|
|
void CCTexture2D::setDefaultAlphaPixelFormat(CCTexture2DPixelFormat format)
|
|
{
|
|
g_defaultAlphaPixelFormat = format;
|
|
}
|
|
|
|
|
|
CCTexture2DPixelFormat CCTexture2D::defaultAlphaPixelFormat()
|
|
{
|
|
return g_defaultAlphaPixelFormat;
|
|
}
|
|
|