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| 706 | |
| 707 | //------------------------------------------------------------------------------ |
| 708 | void vtkVolumeTexture::SelectTextureFormat( |
| 709 | unsigned int& format, unsigned int& internalFormat, int& type, int scalarType, int noOfComponents) |
| 710 | { |
| 711 | bool supportsFloat = true; |
| 712 | this->HandleLargeDataTypes = false; |
| 713 | |
| 714 | switch (scalarType) |
| 715 | { |
| 716 | case VTK_FLOAT: |
| 717 | if (supportsFloat) |
| 718 | { |
| 719 | switch (noOfComponents) |
| 720 | { |
| 721 | case 1: |
| 722 | internalFormat = GL_R32F; |
| 723 | format = GL_RED; |
| 724 | break; |
| 725 | case 2: |
| 726 | internalFormat = GL_RG32F; |
| 727 | format = GL_RG; |
| 728 | break; |
| 729 | case 3: |
| 730 | internalFormat = GL_RGB32F; |
| 731 | format = GL_RGB; |
| 732 | break; |
| 733 | case 4: |
| 734 | internalFormat = GL_RGBA32F; |
| 735 | format = GL_RGBA; |
| 736 | break; |
| 737 | } |
| 738 | } |
| 739 | else |
| 740 | { |
| 741 | switch (noOfComponents) |
| 742 | { |
| 743 | case 1: |
| 744 | internalFormat = GL_RED; |
| 745 | format = GL_RED; |
| 746 | break; |
| 747 | case 2: |
| 748 | internalFormat = GL_RG; |
| 749 | format = GL_RG; |
| 750 | break; |
| 751 | case 3: |
| 752 | internalFormat = GL_RGB; |
| 753 | format = GL_RGB; |
| 754 | break; |
| 755 | case 4: |
| 756 | internalFormat = GL_RGBA; |
| 757 | format = GL_RGBA; |
| 758 | break; |
| 759 | } |
| 760 | } |
| 761 | break; |
| 762 | case VTK_UNSIGNED_CHAR: |
| 763 | case VTK_SIGNED_CHAR: |
| 764 | case VTK_SHORT: |
| 765 | case VTK_UNSIGNED_SHORT: |
no test coverage detected