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mesa: make _mesa_test_proxy_teximage() easier to read

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This commit is contained in:
Brian Paul 2010-12-07 21:37:20 -07:00
parent 4ff70b7a8f
commit c64447f47d
1 changed files with 71 additions and 55 deletions
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126
src/mesa/main/teximage.c
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@ -1219,94 +1219,110 @@ _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
switch (target) {
case GL_PROXY_TEXTURE_1D:
maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
if (width < 2 * border || width > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
width >0 && !_mesa_is_pow_two(width - 2 * border)) ||
level >= ctx->Const.MaxTextureLevels) {
/* bad width or level */
if (width < 2 * border || width > 2 + maxSize)
return GL_FALSE;
if (level >= ctx->Const.MaxTextureLevels)
return GL_FALSE;
if (!ctx->Extensions.ARB_texture_non_power_of_two) {
if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
return GL_FALSE;
}
return GL_TRUE;
case GL_PROXY_TEXTURE_2D:
maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
if (width < 2 * border || width > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
height < 2 * border || height > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
level >= ctx->Const.MaxTextureLevels) {
/* bad width or height or level */
if (width < 2 * border || width > 2 + maxSize)
return GL_FALSE;
if (height < 2 * border || height > 2 + maxSize)
return GL_FALSE;
if (level >= ctx->Const.MaxTextureLevels)
return GL_FALSE;
if (!ctx->Extensions.ARB_texture_non_power_of_two) {
if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
return GL_FALSE;
if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
return GL_FALSE;
}
return GL_TRUE;
case GL_PROXY_TEXTURE_3D:
maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
if (width < 2 * border || width > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
height < 2 * border || height > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
depth < 2 * border || depth > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) ||
level >= ctx->Const.Max3DTextureLevels) {
/* bad width or height or depth or level */
if (width < 2 * border || width > 2 + maxSize)
return GL_FALSE;
if (height < 2 * border || height > 2 + maxSize)
return GL_FALSE;
if (depth < 2 * border || depth > 2 + maxSize)
return GL_FALSE;
if (level >= ctx->Const.Max3DTextureLevels)
return GL_FALSE;
if (!ctx->Extensions.ARB_texture_non_power_of_two) {
if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
return GL_FALSE;
if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
return GL_FALSE;
if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
return GL_FALSE;
}
return GL_TRUE;
case GL_PROXY_TEXTURE_RECTANGLE_NV:
if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
height < 0 || height > ctx->Const.MaxTextureRectSize ||
level != 0) {
/* bad width or height or level */
maxSize = ctx->Const.MaxTextureRectSize;
if (width < 0 || width > maxSize)
return GL_FALSE;
if (height < 0 || height > maxSize)
return GL_FALSE;
if (level != 0)
return GL_FALSE;
}
return GL_TRUE;
case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
if (width < 2 * border || width > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
height < 2 * border || height > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
level >= ctx->Const.MaxCubeTextureLevels) {
/* bad width or height */
if (width < 2 * border || width > 2 + maxSize)
return GL_FALSE;
if (height < 2 * border || height > 2 + maxSize)
return GL_FALSE;
if (level >= ctx->Const.MaxCubeTextureLevels)
return GL_FALSE;
if (!ctx->Extensions.ARB_texture_non_power_of_two) {
if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
return GL_FALSE;
if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
return GL_FALSE;
}
return GL_TRUE;
case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
if (width < 2 * border || width > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
level >= ctx->Const.MaxTextureLevels) {
/* bad width or level */
if (width < 2 * border || width > 2 + maxSize)
return GL_FALSE;
}
if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
return GL_FALSE;
if (level >= ctx->Const.MaxTextureLevels)
return GL_FALSE;
if (!ctx->Extensions.ARB_texture_non_power_of_two) {
if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
return GL_FALSE;
}
return GL_TRUE;
case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
if (width < 2 * border || width > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
height < 2 * border || height > 2 + maxSize ||
(!ctx->Extensions.ARB_texture_non_power_of_two &&
height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
level >= ctx->Const.MaxTextureLevels) {
/* bad width or height or level */
if (width < 2 * border || width > 2 + maxSize)
return GL_FALSE;
}
if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
if (height < 2 * border || height > 2 + maxSize)
return GL_FALSE;
if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
return GL_FALSE;
if (level >= ctx->Const.MaxTextureLevels)
return GL_FALSE;
if (!ctx->Extensions.ARB_texture_non_power_of_two) {
if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
return GL_FALSE;
if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
return GL_FALSE;
}
return GL_TRUE;
default:
_mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
return GL_FALSE;