diff options
| -rw-r--r-- | src/mesa/main/teximage.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index f902365b9bd..1656b228b9b 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -1264,6 +1264,10 @@ _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. @@ -1293,7 +1297,7 @@ _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; @@ -1303,10 +1307,10 @@ _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; @@ -1316,21 +1320,21 @@ _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; @@ -1340,10 +1344,10 @@ _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; @@ -1353,7 +1357,7 @@ _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; @@ -1367,10 +1371,10 @@ _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; |