texture manager, texture loader, texture

master
Eduardo Bart před 14 roky
rodič b6f1a18beb
revize f10ced4626

@ -50,6 +50,9 @@ ENDIF(CMAKE_BUILD_TYPE STREQUAL "Debug")
# find sources
SET(SOURCES
src/textureloader.cpp
src/texture.cpp
src/texturemanager.cpp
src/configmanager.cpp
src/resourcemanager.cpp
src/main.cpp

@ -126,7 +126,7 @@ void Engine::onClose()
void Engine::onResize(int width, int height)
{
g_graphics.resize(width, height);
}
void Engine::onInputEvent(InputEvent *event)

@ -24,9 +24,11 @@
#include "graphics.h"
#include "logger.h"
#include "texturemanager.h"
#include <GL/gl.h>
#include <GL/glu.h>
#include "platform.h"
Graphics g_graphics;

@ -0,0 +1,83 @@
/* The MIT License
*
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
*
* 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.
*/
#include "texture.h"
#include <GL/gl.h>
#include <GL/glu.h>
Texture::Texture(int width, int height, unsigned char *pixels, int components)
{
m_width = width;
m_height = height;
glGenTextures(1, &m_textureId);
glBindTexture(GL_TEXTURE_2D, m_textureId);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
GLenum format = 0;
switch(components) {
case 4:
format = GL_RGBA;
break;
case 3:
format = GL_RGB;
break;
case 2:
format = GL_LUMINANCE_ALPHA;
break;
case 1:
format = GL_LUMINANCE;
break;
}
glTexImage2D(GL_TEXTURE_2D, 0, components, width, height, 0, format, GL_UNSIGNED_BYTE, pixels);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
Texture::~Texture()
{
if(m_textureId > 0)
glDeleteTextures(1, &m_textureId);
}
void Texture::enableBilinearFilter()
{
glBindTexture(GL_TEXTURE_2D, m_textureId);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
void Texture::bind()
{
glBindTexture(GL_TEXTURE_2D, m_textureId);
}

@ -0,0 +1,56 @@
/* The MIT License
*
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
*
* 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.
*/
#ifndef TEXTURE_H
#define TEXTURE_H
#include <GL/gl.h>
#include <boost/shared_ptr.hpp>
class TextureManager;
class Texture
{
public:
Texture(int width, int height, unsigned char *pixels, int components);
virtual ~Texture();
/// Bind texture for drawing
void bind();
/// Enable texture bilinear filter (smooth scaled textures)
void enableBilinearFilter();
int getWidth() const { return m_width; }
int getHeight() const { return m_height; }
private:
GLuint m_textureId;
int m_width;
int m_height;
};
typedef boost::shared_ptr<Texture> TexturePtr;
#endif // TEXTURE_H

@ -0,0 +1,125 @@
/* The MIT License
*
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
*
* 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.
*/
#include "textureloader.h"
#include <cstdio>
#include <png.h>
TexturePtr TextureLoader::loadPNG(const unsigned char *fileData, unsigned int fileSize)
{
TexturePtr texture;
FILE *pngFile = fmemopen((void*)fileData, fileSize, "rb");
if(!pngFile)
return texture;
png_byte sig[8];
if(!fread(&sig, 8, 1, pngFile))
return texture;
if(png_sig_cmp(sig, 0, 8))
return texture;
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if(!png_ptr)
return texture;
png_infop info_ptr = png_create_info_struct(png_ptr);
if(!info_ptr) {
png_destroy_read_struct(&png_ptr, NULL, NULL);
return texture;
}
if(setjmp(png_jmpbuf(png_ptr))) {
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return texture;
}
png_init_io(png_ptr, pngFile);
png_set_sig_bytes(png_ptr, 8);
png_read_info(png_ptr, info_ptr);
int bitDepth = png_get_bit_depth(png_ptr, info_ptr);
int colourType = png_get_color_type(png_ptr, info_ptr);
if(colourType == PNG_COLOR_TYPE_PALETTE)
png_set_palette_to_rgb(png_ptr);
if(bitDepth < 8 && (colourType == PNG_COLOR_TYPE_GRAY || colourType == PNG_COLOR_TYPE_GRAY_ALPHA))
png_set_expand_gray_1_2_4_to_8(png_ptr);
if(png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS))
png_set_tRNS_to_alpha(png_ptr);
if(bitDepth < 8)
png_set_packing(png_ptr);
else if(bitDepth == 16)
png_set_strip_16(png_ptr);
png_read_update_info(png_ptr, info_ptr);
png_uint_32 width, height;
png_get_IHDR(png_ptr, info_ptr, &width, &height, &bitDepth, &colourType, NULL, NULL, NULL);
int components;
switch(colourType)
{
case PNG_COLOR_TYPE_GRAY:
components = 1;
break;
case PNG_COLOR_TYPE_GRAY_ALPHA:
components = 2;
break;
case PNG_COLOR_TYPE_RGB:
components = 3;
break;
case PNG_COLOR_TYPE_RGB_ALPHA:
components = 4;
break;
default:
if(png_ptr)
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return texture;
};
unsigned char *pixels = new unsigned char[width * height * components];
png_bytep *row_pointers = new png_bytep[height];
for(unsigned int i = 0; i < height; ++i)
row_pointers[i] = (png_bytep)(pixels + (i * width * components));
png_read_image(png_ptr, row_pointers);
png_read_end(png_ptr, NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
fclose(pngFile);
delete[] row_pointers;
texture = TexturePtr(new Texture(width, height, pixels, components));
delete[] pixels;
return texture;
}

@ -0,0 +1,36 @@
/* The MIT License
*
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
*
* 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.
*/
#ifndef TEXTURELOADER_H
#define TEXTURELOADER_H
#include "texture.h"
namespace TextureLoader
{
/// Load a png textures using libpng
TexturePtr loadPNG(const unsigned char *fileData, unsigned int fileSize);
}
#endif // TEXTURELOADER_H

@ -0,0 +1,71 @@
/* The MIT License
*
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
*
* 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.
*/
#include "texturemanager.h"
#include "resourcemanager.h"
#include "textureloader.h"
#include "logger.h"
#include <boost/algorithm/string.hpp>
TextureManager g_textures;
TextureManager::TextureManager()
{
}
TextureManager::~TextureManager()
{
m_texturesMap.clear();
}
TexturePtr TextureManager::get(const std::string& textureFile)
{
TexturePtr texture;
// check if the texture is already loaded
TexturesMap::iterator it = m_texturesMap.find(textureFile);
if(it != m_texturesMap.end())
texture = it->second;
else { // load texture
// currently only png textures are supported
if(!boost::ends_with(textureFile, ".png")) {
error("Unable to load texture %s, file format no supported.", textureFile.c_str());
return texture;
}
unsigned int fileSize;
unsigned char *textureFileData = g_resources.loadFile(textureFile, &fileSize);
if(!textureFileData)
return texture;
texture = TextureLoader::loadPNG(textureFileData, fileSize);
if(!texture)
error("Unable to load texture %s, loading error.", textureFile.c_str());
delete[] textureFileData;
}
return texture;
}

@ -0,0 +1,49 @@
/* The MIT License
*
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
*
* 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.
*/
#ifndef TEXTUREMANAGER_H
#define TEXTUREMANAGER_H
#include "texture.h"
#include <string>
#include <map>
class TextureManager
{
public:
TextureManager();
~TextureManager();
/// Load a texture from file, if it was already loaded a cached one will be retrieved
TexturePtr get(const std::string& textureFile);
private:
typedef std::map<std::string, TexturePtr> TexturesMap;
TexturesMap m_texturesMap;
};
extern TextureManager g_textures;
#endif // TEXTUREMANAGER_H
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