1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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2 | /* |
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3 | * ---------------------------------------------------------------------- |
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4 | * Nanovis: Visualization of Nanoelectronics Data |
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5 | * |
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6 | * ====================================================================== |
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7 | * AUTHOR: Wei Qiao <qiaow@purdue.edu> |
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8 | * Purdue Rendering and Perceptualization Lab (PURPL) |
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9 | * |
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10 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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11 | * |
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12 | * See the file "license.terms" for information on usage and |
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13 | * redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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14 | * ====================================================================== |
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15 | */ |
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16 | #ifndef DEFINE_H |
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17 | #define DEFINE_H |
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18 | |
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19 | #include <GL/glew.h> |
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20 | |
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21 | #define CHECK_FRAMEBUFFER_STATUS() \ |
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22 | do { \ |
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23 | GLenum status; \ |
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24 | status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); \ |
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25 | switch(status) { \ |
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26 | case GL_FRAMEBUFFER_COMPLETE_EXT: \ |
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27 | TRACE("Framebuffer complete"); \ |
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28 | break; \ |
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29 | case GL_FRAMEBUFFER_UNSUPPORTED_EXT: \ |
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30 | ERROR("Framebuffer GL_FRAMEBUFFER_UNSUPPORTED_EXT"); \ |
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31 | assert(0); \ |
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32 | break; \ |
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33 | case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT: \ |
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34 | TRACE("Framebuffer INCOMPLETE_ATTACHMENT"); \ |
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35 | break; \ |
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36 | case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT: \ |
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37 | TRACE("Framebuffer FRAMEBUFFER_MISSING_ATTACHMENT"); \ |
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38 | break; \ |
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39 | case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT: \ |
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40 | TRACE("Framebuffer FRAMEBUFFER_DIMENSIONS"); \ |
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41 | break; \ |
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42 | case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT: \ |
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43 | TRACE("Framebuffer INCOMPLETE_FORMATS"); \ |
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44 | break; \ |
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45 | case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT: \ |
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46 | TRACE("Framebuffer INCOMPLETE_DRAW_BUFFER"); \ |
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47 | break; \ |
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48 | case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT: \ |
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49 | TRACE("Framebuffer INCOMPLETE_READ_BUFFER"); \ |
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50 | break; \ |
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51 | case GL_FRAMEBUFFER_BINDING_EXT: \ |
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52 | TRACE("Framebuffer BINDING_EXT"); \ |
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53 | break; \ |
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54 | default: \ |
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55 | ERROR("Unknown framebuffer error %d", status); \ |
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56 | /* programming error; will fail on all hardware */ \ |
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57 | assert(0); \ |
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58 | } \ |
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59 | } while(0) |
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60 | |
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61 | inline void |
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62 | draw_quad(int w, int h, int tw, int th) |
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63 | { |
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64 | glBegin(GL_QUADS); |
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65 | glTexCoord2f(0, 0); glVertex2f(0, 0); |
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66 | glTexCoord2f((float)tw, 0); glVertex2f((float)w, 0); |
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67 | glTexCoord2f((float)tw, (float)th); glVertex2f((float)w, (float) h); |
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68 | glTexCoord2f(0, (float)th); glVertex2f(0, (float) h); |
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69 | glEnd(); |
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70 | } |
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71 | |
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72 | #endif |
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