1 files changed, 0 insertions, 435 deletions
diff --git a/progs/tests/mipmap_view.c b/progs/tests/mipmap_view.c
deleted file mode 100644
index 808d348699..0000000000
--- a/progs/tests/mipmap_view.c
+++ /dev/null
@@ -1,435 +0,0 @@
-/*
- * Test mipmap generation and lod bias.
- *
- * Brian Paul
- * 17 March 2008
- */
-
-
-#include <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-#include <GL/glext.h>
-
-#include "readtex.h"
-
-#define TEXTURE_FILE "../images/arch.rgb"
-
-#define LEVELS 8
-#define SIZE (1<<LEVELS)
-static int TexWidth = SIZE, TexHeight = SIZE;
-static int WinWidth = 1044, WinHeight = 900;
-static GLfloat Bias = 0.0;
-static GLboolean ScaleQuads = GL_FALSE;
-static GLboolean Linear = GL_FALSE;
-static GLint Win = 0;
-static GLint RenderTextureLevel = 0;
-static GLuint TexObj;
-
-
-
-static void
-CheckError(int line)
-{
-   GLenum err = glGetError();
-   if (err) {
-      printf("GL Error 0x%x at line %d\n", (int) err, line);
-   }
-}
-
-
-
-static void
-PrintString(const char *s)
-{
-   while (*s) {
-      glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
-      s++;
-   }
-}
-
-
-
-
-static void
-MipGenTexture( void )
-{
-   /* test auto mipmap generation */
-   GLint width, height, i;
-   GLenum format;
-   GLubyte *image = LoadRGBImage(TEXTURE_FILE, &width, &height, &format);
-   if (!image) {
-      printf("Error: could not load texture image %s\n", TEXTURE_FILE);
-      exit(1);
-   }
-   /* resize to TexWidth x TexHeight */
-   if (width != TexWidth || height != TexHeight) {
-      GLubyte *newImage = malloc(TexWidth * TexHeight * 4);
-      
-      fprintf(stderr, "rescale %d %d to %d %d\n", width, height,
-              TexWidth, TexHeight);
-      fflush(stderr);
-
-      gluScaleImage(format, width, height, GL_UNSIGNED_BYTE, image,
-                    TexWidth, TexHeight, GL_UNSIGNED_BYTE, newImage);
-      free(image);
-      image = newImage;
-   }
-   printf("Using GL_SGIS_generate_mipmap\n");
-   glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
-   glTexImage2D(GL_TEXTURE_2D, 0, format, TexWidth, TexHeight, 0,
-                format, GL_UNSIGNED_BYTE, image);
-   free(image);
-
-   /* make sure mipmap was really generated correctly */
-   width = TexWidth;
-   height = TexHeight;
-   for (i = 0; i < 9; i++) {
-      GLint w, h;
-      glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_WIDTH, &w);
-      glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_HEIGHT, &h);
-      printf("Level %d size: %d x %d\n", i, w, h);
-      assert(w == width);
-      assert(h == height);
-      width /= 2;
-      height /= 2;
-   }
-
-
-   glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_FALSE);
-}
-
-
-
-static void
-ResetTextureLevel( int i )
-{
-   GLubyte tex2d[SIZE*SIZE][4];
-      
-   {
-      GLint Width = TexWidth / (1 << i);
-      GLint Height = TexHeight / (1 << i);
-      GLint s, t;
-         
-      for (s = 0; s < Width; s++) {
-         for (t = 0; t < Height; t++) {
-            tex2d[t*Width+s][0] = ((s / 16) % 2) ? 0 : 255;
-            tex2d[t*Width+s][1] = ((t / 16) % 2) ? 0 : 255;
-            tex2d[t*Width+s][2] = 128;
-            tex2d[t*Width+s][3] = 255;
-         }
-      }
-         
-      glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-         
-      glTexImage2D(GL_TEXTURE_2D, i, GL_RGB, Width, Height, 0,
-                   GL_RGBA, GL_UNSIGNED_BYTE, tex2d);
-   }
-}
-
-
-static void
-ResetTexture( void )
-{
-#if 0
-   /* This doesn't work so well as the arch texture is 512x512.
-    */
-   LoadRGBMipmaps(TEXTURE_FILE, GL_RGB);
-#else
-   {
-      int i;
-      
-      for (i = 0; i <= LEVELS; i++)
-      {
-         ResetTextureLevel(i);
-      }
-   }
-#endif
-}
-
-
-
-
-
-
-
-static void
-RenderTexture( void )
-{
-   GLenum status;
-   GLuint MyFB;
-
-   fprintf(stderr, "RenderTextureLevel %d\n", RenderTextureLevel);
-   fflush(stderr);
-
-   /* gen framebuffer id, delete it, do some assertions, just for testing */
-   glGenFramebuffersEXT(1, &MyFB);
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
-   assert(glIsFramebufferEXT(MyFB));
-
-   CheckError(__LINE__);
-
-   /* Render color to texture */
-   glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, 
-                             GL_COLOR_ATTACHMENT0_EXT,
-                             GL_TEXTURE_2D, TexObj, 
-                             RenderTextureLevel);
-
-
-
-   CheckError(__LINE__);
-
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   glTranslatef(0.0, 0.0, -15.0);
-
-   status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
-   if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
-      printf("Framebuffer incomplete!!!\n");
-   }
-
-   glViewport(0, 0,
-              TexWidth / (1 << RenderTextureLevel),
-              TexHeight / (1 << RenderTextureLevel));
-
-   glClearColor(0.5, 0.5, 1.0, 0.0);
-   glClear(GL_COLOR_BUFFER_BIT);
-      
-   CheckError(__LINE__);
-
-   glBegin(GL_POLYGON);
-   glColor3f(1, 0, 0);
-   glVertex2f(-1, -1);
-   glColor3f(0, 1, 0);
-   glVertex2f(1, -1);
-   glColor3f(0, 0, 1);
-   glVertex2f(0, 1);
-   glEnd();
-
-
-   /* Bind normal framebuffer */
-   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
-   CheckError(__LINE__);
-
-   glDeleteFramebuffersEXT(1, &MyFB);
-   CheckError(__LINE__);
-
-   glClearColor(0, 0, 0, 0);
-}
-
-static void
-Display(void)
-{
-   int x, y, bias;
-   char str[100];
-   int texWidth = TexWidth, texHeight = TexHeight;
-
-   glViewport(0, 0, WinHeight, WinHeight);
-
-   glClear(GL_COLOR_BUFFER_BIT);
-
-   glMatrixMode(GL_PROJECTION);
-   glLoadIdentity();
-   glOrtho(0, WinWidth, 0, WinHeight, -1, 1);
-   glMatrixMode(GL_MODELVIEW);
-   glLoadIdentity();
-   
-   glColor3f(1,1,1);
-
-   if (Linear) {
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-   }
-   else {
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
-      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-   }
-
-   y = WinHeight - 300;
-   x = 4;
-
-   for (bias = -1; bias < 11; bias++) {
-
-      if (ScaleQuads) {
-         if (bias > 0) {
-            if (texWidth == 1 && texHeight == 1)
-               break;
-            texWidth = TexWidth >> bias;
-            texHeight = TexHeight >> bias;
-            if (texWidth < 1)
-               texWidth = 1;
-            if (texHeight < 1)
-               texHeight = 1;
-         }
-         glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, 0.0);
-      }
-      else {
-         glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, bias);
-      }
-
-      glRasterPos2f(x, y + TexHeight + 5);
-      if (ScaleQuads)
-         sprintf(str, "Texture Level %d: %d x %d",
-                 (bias < 0 ? 0 : bias),
-                 texWidth, texHeight);
-      else
-         sprintf(str, "Texture LOD Bias = %d", bias);
-      PrintString(str);
-
-      glPushMatrix();
-      glTranslatef(x, y, 0);
-
-      glEnable(GL_TEXTURE_2D);
-
-      glBegin(GL_POLYGON);
-      glTexCoord2f(0, 0);  glVertex2f(0, 0);
-      glTexCoord2f(1, 0);  glVertex2f(texWidth, 0);
-      glTexCoord2f(1, 1);  glVertex2f(texWidth, texHeight);
-      glTexCoord2f(0, 1);  glVertex2f(0, texHeight);
-      glEnd();
-
-      glPopMatrix();
-
-      glDisable(GL_TEXTURE_2D);
-
-      x += TexWidth + 4;
-      if (x >= WinWidth) {
-         x = 4;
-         y -= 300;
-      }
-   }
-
-   glutSwapBuffers();
-}
-
-
-static void
-Reshape(int width, int height)
-{
-   WinWidth = width;
-   WinHeight = height;
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
-   (void) x;
-   (void) y;
-   switch (key) {
-      case 'b':
-         Bias -= 10;
-         break;
-      case 'B':
-         Bias += 10;
-         break;
-      case 'l':
-         Linear = !Linear;
-         break;
-      case 'v':
-         RenderTextureLevel++;
-         break;
-      case 'V':
-         RenderTextureLevel--;
-         break;
-      case 'r':
-         RenderTexture();
-         break;
-      case 'X':
-         ResetTexture();
-         break;
-      case 'x':
-         ResetTextureLevel(RenderTextureLevel);
-         break;
-      case '0':
-      case '1':
-      case '2':
-      case '3':
-      case '4':
-      case '5':
-      case '6':
-      case '7':
-      case '8':
-      case '9':
-         Bias = 100.0 * (key - '0');
-         break;
-      case 's':
-         ScaleQuads = !ScaleQuads;
-         break;
-      case ' ':
-         MipGenTexture();
-         Bias = 0;
-         Linear = 0;
-         RenderTextureLevel = 0;
-         ScaleQuads = 0;
-         break;
-         
-      case 27:
-         glutDestroyWindow(Win);
-         exit(0);
-         break;
-   }
-   glutPostRedisplay();
-}
-
-
-static void
-Init(void)
-{
-   GLfloat maxBias;
-
-   if (!glutExtensionSupported("GL_EXT_texture_lod_bias")) {
-      printf("Sorry, GL_EXT_texture_lod_bias not supported by this renderer.\n");
-      exit(1);
-   }
-
-   if (!glutExtensionSupported("GL_SGIS_generate_mipmap")) {
-      printf("Sorry, GL_SGIS_generate_mipmap not supported by this renderer.\n");
-      exit(1);
-   }
-
-   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
-   glGenTextures(1, &TexObj);
-   glBindTexture(GL_TEXTURE_2D, TexObj);
-
-   if (1) 
-      MipGenTexture();
-   else
-      ResetTexture();
-
-   /* mipmapping required for this extension */
-   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
-   glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &maxBias);
-
-   printf("GL_RENDERER: %s\n", (char*) glGetString(GL_RENDERER));
-   printf("LOD bias range: [%g, %g]\n", -maxBias, maxBias);
-
-   printf("Press 's' to toggle quad scaling\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
-   glutInit(&argc, argv);
-   glutInitWindowPosition(0, 0);
-   glutInitWindowSize(WinWidth, WinHeight);
-   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
-   Win = glutCreateWindow(argv[0]);
-   glewInit();
-   glutReshapeFunc(Reshape);
-   glutKeyboardFunc(Key);
-   glutDisplayFunc(Display);
-   Init();
-   glutMainLoop();
-   return 0;
-}