From c1938a60f7a9bf0773b86fb2f9a2677221f96557 Mon Sep 17 00:00:00 2001 From: Brian Date: Sun, 8 Jul 2007 10:04:14 -0600 Subject: Fix zero-size texture checking in _mesa_test_proxy_teximage(), bug 11309 --- docs/relnotes-7.0.1.html | 1 + src/mesa/main/teximage.c | 28 ++++++++++++++++------------ 2 files changed, 17 insertions(+), 12 deletions(-) diff --git a/docs/relnotes-7.0.1.html b/docs/relnotes-7.0.1.html index 44493402668..e62497fc7c0 100644 --- a/docs/relnotes-7.0.1.html +++ b/docs/relnotes-7.0.1.html @@ -40,6 +40,7 @@ Mesa 7.0.1 is a stable release with bug fixes since version 7.0.
  • GLSL bug fix: .strq and .rgba writemasks didn't always work
  • Stencil pixel map didn't always work for glDrawPixels (bug 11475)
  • Fixed polygon stipple bug in i915 driver +
  • Binding a zero-sized texture didn't disable texturing (bug 11309) diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index c8ce79ea865..d1b2c5c6399 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -1,8 +1,8 @@ /* * Mesa 3-D graphics library - * Version: 6.5.1 + * Version: 7.0.1 * - * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. + * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -1207,6 +1207,10 @@ _mesa_init_teximage_fields(GLcontext *ctx, GLenum target, * A hardware driver might override this function if, for example, the * max 3D texture size is 512x512x64 (i.e. not a cube). * + * Note that width, height, depth == 0 is not an error. However, a + * texture with zero width/height/depth will be considered "incomplete" + * and texturing will effectively be disabled. + * * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, * GL_PROXY_TEXTURE_CUBE_MAP_ARB. @@ -1236,7 +1240,7 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); if (width < 2 * border || width > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(width - 2 * border) != 1) || + width > 0 && _mesa_bitcount(width - 2 * border) != 1) || level >= ctx->Const.MaxTextureLevels) { /* bad width or level */ return GL_FALSE; @@ -1246,10 +1250,10 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); if (width < 2 * border || width > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(width - 2 * border) != 1) || + width > 0 && _mesa_bitcount(width - 2 * border) != 1) || height < 2 * border || height > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(height - 2 * border) != 1) || + height > 0 && _mesa_bitcount(height - 2 * border) != 1) || level >= ctx->Const.MaxTextureLevels) { /* bad width or height or level */ return GL_FALSE; @@ -1259,21 +1263,21 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); if (width < 2 * border || width > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(width - 2 * border) != 1) || + width > 0 && _mesa_bitcount(width - 2 * border) != 1) || height < 2 * border || height > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(height - 2 * border) != 1) || + height > 0 && _mesa_bitcount(height - 2 * border) != 1) || depth < 2 * border || depth > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(depth - 2 * border) != 1) || + depth > 0 && _mesa_bitcount(depth - 2 * border) != 1) || level >= ctx->Const.Max3DTextureLevels) { /* bad width or height or depth or level */ return GL_FALSE; } return GL_TRUE; case GL_PROXY_TEXTURE_RECTANGLE_NV: - if (width < 1 || width > ctx->Const.MaxTextureRectSize || - height < 1 || height > ctx->Const.MaxTextureRectSize || + if (width < 0 || width > ctx->Const.MaxTextureRectSize || + height < 0 || height > ctx->Const.MaxTextureRectSize || level != 0) { /* bad width or height or level */ return GL_FALSE; @@ -1283,10 +1287,10 @@ _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); if (width < 2 * border || width > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(width - 2 * border) != 1) || + width > 0 && _mesa_bitcount(width - 2 * border) != 1) || height < 2 * border || height > 2 + maxSize || (!ctx->Extensions.ARB_texture_non_power_of_two && - _mesa_bitcount(height - 2 * border) != 1) || + height > 0 && _mesa_bitcount(height - 2 * border) != 1) || level >= ctx->Const.MaxCubeTextureLevels) { /* bad width or height */ return GL_FALSE; -- cgit v1.2.3