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PODDS DXT1 loading in OpenGL, crashes
 

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    <p>Any idea whats wrong with my code? when i execute glCompressedTexImage2D() the program just crashes (comes the Windows XP crash message thing...)</p> <p>Im trying to load DDS image without mipmaps, the image format is DDS DXT1</p> <p>Am i missing some include file, or what did i do wrong? I downloaded the included files from: <a href="http://sourceforge.net/projects/glew/files/glew/1.5.1/glew-1.5.1-win32.zip/download" rel="nofollow noreferrer">http://sourceforge.net/projects/glew/files/glew/1.5.1/glew-1.5.1-win32.zip/download</a></p> <p>I have glew32.dll in the same folder as my .exe is.</p> <p>The code below has only the parts i changed to be able to load DDS images:</p> <pre><code>#pragma comment(lib, "glew32.lib") #include &lt;GL\glew.h&gt; #include &lt;GL\gl.h&gt; ... typedef struct { GLuint dwSize; GLuint dwFlags; GLuint dwFourCC; GLuint dwRGBBitCount; GLuint dwRBitMask; GLuint dwGBitMask; GLuint dwBBitMask; GLuint dwABitMask; } DDS_PIXELFORMAT; typedef struct { GLuint dwMagic; GLuint dwSize; GLuint dwFlags; GLuint dwHeight; GLuint dwWidth; GLuint dwLinearSize; GLuint dwDepth; GLuint dwMipMapCount; GLuint dwReserved1[11]; DDS_PIXELFORMAT ddpf; GLuint dwCaps; GLuint dwCaps2; GLuint dwCaps3; GLuint dwCaps4; GLuint dwReserved2; } DDS_HEADER; DDS_HEADER DDS_headers; ... FILE *fp = fopen("test.dds", "rb"); fread(&amp;DDS_headers, 1, sizeof(DDS_headers), fp); img_width = DDS_headers.dwWidth; img_height = DDS_headers.dwHeight; maxsize = (img_width*img_height)/2; unsigned char *imgdata = (unsigned char *)malloc(maxsize); fread(imgdata, 1, maxsize, fp); fclose(fp); GLuint texID; glGenTextures(1, &amp;texID); glBindTexture(GL_TEXTURE_2D, texID); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_PALETTE4_R5_G6_B5_OES, img_width, img_height, 0, maxsize, imgdata); // NOTICE: // Ive also tried with function: // glCompressedTexImage2DARB(); // and internalformats: GL_COMPRESSED_RGB_S3TC_DXT1_EXT and all of the possible formats... its not a format error. </code></pre>
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    1. COplease, if you want DXT1, put DXT1 in the glCompressedTexImage2D call. There's no point in keeping PALETTE in there. Now, what at the time of the glCompressedTexImage2D call, what are the values of img_width/img_height/maxsize/imgdata ?
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      1. USBahbar
    2. COi think the problem was at initialization/includefiles, ive got the DDS loading working now by some other code, thanks for help anyways.
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