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annotate engine/core/video/image.cpp @ 620:853d25234671

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* Moved the GLEnable and GLDisable structures from opengl_gui_graphics.cpp to fife_opengl.h as they may prove to be useful elsewhere. * Fixed the color mask definitions in fife_stdint.h * Added the nextPow2() function to calculate the nearest (greater) power of 2 * Removed a bunch of re-definitions of RGB masks * Modified GLImage to only generate one "texture chunk". I hope this makes better use of memory and speeds things up a hair * Made use of the GLEnable structure when clearing the screen
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 30 Sep 2010 21:24:55 +0000
parents d242e6ce6f9f
children
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
0
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23 #include <cassert>
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24 #include <iostream>
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25
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26 // 3rd party library includes
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27 #include <SDL.h>
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28
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29 // FIFE includes
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30 // These includes are split up in two parts, separated by one empty line
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31 // First block: files included from the FIFE root src directory
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32 // Second block: files included from the same folder
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33 #include "image.h"
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34
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35 namespace FIFE {
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36
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37 Image::Image(SDL_Surface* surface):
0
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38 m_surface(NULL) {
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39 reset(surface);
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40 }
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41
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42 Image::Image(const uint8_t* data, unsigned int width, unsigned int height):
0
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43 m_surface(NULL) {
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44 SDL_Surface* surface = SDL_CreateRGBSurface(SDL_SWSURFACE | SDL_SRCALPHA, width,height, 32,
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45 RMASK, GMASK, BMASK ,AMASK);
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46 SDL_LockSurface(surface);
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47
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48 unsigned int size = width * height * 4;
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49 uint8_t* pixeldata = static_cast<uint8_t*>(surface->pixels);
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50 std::copy(data, data + size, pixeldata);
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51 SDL_UnlockSurface(surface);
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52 reset(surface);
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53 }
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54
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55 void Image::reset(SDL_Surface* surface) {
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56 if( m_surface ) {
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57 SDL_FreeSurface(m_surface);
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58 }
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59 m_surface = surface;
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60 m_xshift = 0;
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61 m_yshift = 0;
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62 while (!m_clipstack.empty()) {
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63 m_clipstack.pop();
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64 }
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65 m_area.x = m_area.y = m_area.w = m_area.h = 0;
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66 m_surface = surface;
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67 }
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68
0
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69 Image::~Image() {
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70 //assert(m_refcount == 0);
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71 reset(NULL);
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72 }
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73
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74 SDL_Surface* Image::detachSurface() {
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75 SDL_Surface* srf = m_surface;
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76 m_surface = NULL;
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77 return srf;
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78 }
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79
0
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80 unsigned int Image::getWidth() const {
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81 if (!m_surface) {
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82 return 0;
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83 }
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84 return m_surface->w;
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85 }
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86
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87 unsigned int Image::getHeight() const {
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88 if (!m_surface) {
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89 return 0;
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90 }
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91 return m_surface->h;
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92 }
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93
0
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94 const Rect& Image::getArea() {
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95 m_area.w = getWidth();
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96 m_area.h = getHeight();
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97 return m_area;
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98 }
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99
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100 void Image::setXShift(int xshift) {
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101 m_xshift = xshift;
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102 }
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103
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104 void Image::setYShift(int yshift) {
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105 m_yshift = yshift;
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106 }
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107
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108 void Image::getPixelRGBA(int x, int y, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a) {
162
c3418554467f Sorry. Last fix/bug was brought to you by pure unadulterated stupitity.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 161
diff changeset
109 if ((x < 0) || (x >= m_surface->w) || (y < 0) || (y >= m_surface->h)) {
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
110 r = 0;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
111 g = 0;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
112 b = 0;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
113 a = 0;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
114 return;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
115 }
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
116
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
117 int bpp = m_surface->format->BytesPerPixel;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
118 Uint8 *p = (Uint8*)m_surface->pixels + y * m_surface->pitch + x * bpp;
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
119 uint32_t pixel = 0;
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
120 switch(bpp) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
121 case 1:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
122 pixel = *p;
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
123
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
124 case 2:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
125 pixel = *(Uint16 *)p;
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
126
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
127 case 3:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
128 if (SDL_BYTEORDER == SDL_BIG_ENDIAN) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
129 pixel = p[0] << 16 | p[1] << 8 | p[2];
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
130 } else {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
131 pixel = p[0] | p[1] << 8 | p[2] << 16;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
132 }
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
133
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
134 case 4:
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
135 pixel = *(Uint32 *)p;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
136 }
34
d66538926e78 fix getPixelRGBA - it should return r g b and not r b g...
spq@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 0
diff changeset
137 SDL_GetRGBA(pixel, m_surface->format, r, g, b, a);
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
138 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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139
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
140 void Image::render(const Rect& rect, unsigned char alpha) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
141 render(rect, SDL_GetVideoSurface(), alpha);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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142 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
143
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
144 void Image::pushClipArea(const Rect& cliparea, bool clear) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
145 ClipInfo ci;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
146 ci.r = cliparea;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
147 ci.clearing = clear;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
148 m_clipstack.push(ci);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
149 setClipArea(cliparea, clear);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
150 }
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
151
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
152 void Image::popClipArea() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
153 assert(!m_clipstack.empty());
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
154 m_clipstack.pop();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
155 if (m_clipstack.empty()) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
156 clearClipArea();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
157 } else {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
158 ClipInfo ci = m_clipstack.top();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
159 setClipArea(ci.r, ci.clearing);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
160 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
161 }
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
162
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
163 const Rect& Image::getClipArea() const {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
164 if (m_clipstack.empty()) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
165 return m_clipstack.top().r;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
166 } else {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
167 return m_area;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
168 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
169 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
170
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
171 void Image::clearClipArea() {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
172 setClipArea(m_area, true);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
173 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
174
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
175 void Image::saveAsPng(const std::string& filename, SDL_Surface& surface) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
176 FILE *fp;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
177 png_structp pngptr;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
178 png_infop infoptr;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
179 int colortype;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
180 png_bytep *rowpointers = NULL;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
181
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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diff changeset
182 fp = fopen(filename.c_str(), "wb");
605
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
183
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
184 if (fp == NULL) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
185 return;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
186 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
187
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
188 //create the png file
605
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
189 pngptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
190 NULL, NULL, NULL);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
191 if (pngptr == NULL) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
192 fclose(fp);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
193 return;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
194 }
605
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
195
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
196 //create information struct
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
197 infoptr = png_create_info_struct(pngptr);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
198 if (infoptr == NULL) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
199 fclose(fp);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
200 png_destroy_write_struct(&pngptr, (png_infopp)NULL);
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
201 return;
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
202 }
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
203
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
204 if (setjmp(png_jmpbuf(pngptr))) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
205 png_destroy_write_struct(&pngptr, &infoptr);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
206 fclose(fp);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
207 return;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
208 }
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
209
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
210 //initialize io
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
211 png_init_io(pngptr, fp);
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
212
0
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
213 //lock the surface for access
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
214 SDL_LockSurface(&surface);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
215
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
216 colortype = PNG_COLOR_TYPE_RGB;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
217 if(m_surface->format->palette){
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
218 colortype |= PNG_COLOR_TYPE_PALETTE;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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219 }
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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220 else if (m_surface->format->Amask){
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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221 colortype |= PNG_COLOR_TYPE_RGB_ALPHA;
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222 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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223 else{}
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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224
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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225 png_set_IHDR(pngptr, infoptr, surface.w, surface.h, 8, colortype,
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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226 PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
605
d242e6ce6f9f Fixed a few compiler warning messages. Also removed a bunch of extra whitespace.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 239
diff changeset
227
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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228 png_write_info(pngptr, infoptr);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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229 png_set_packing(pngptr);
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230
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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231 rowpointers = new png_bytep[surface.h];
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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232 for (int i = 0; i < surface.h; i++) {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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233 rowpointers[i] = (png_bytep)(Uint8 *)surface.pixels + i*surface.pitch;
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234 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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235 //write the image
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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236 png_write_image(pngptr, rowpointers);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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237 png_write_end(pngptr, infoptr);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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238
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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239 SDL_UnlockSurface(&surface);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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240 delete [] rowpointers;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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241 png_destroy_write_struct(&pngptr, &infoptr);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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242 fclose(fp);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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243
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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244 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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245 }