| /* |
| * Copyright 2017 Google |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include "formats.h" |
| #include "util/macros.h" |
| |
| /** |
| * For an sRGB format, return the corresponding linear color space format. |
| * For non-sRGB formats, return the format as-is. |
| */ |
| mesa_format |
| _mesa_get_srgb_format_linear(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_A8B8G8R8_SRGB: |
| return MESA_FORMAT_A8B8G8R8_UNORM; |
| case MESA_FORMAT_B8G8R8A8_SRGB: |
| return MESA_FORMAT_B8G8R8A8_UNORM; |
| case MESA_FORMAT_A8R8G8B8_SRGB: |
| return MESA_FORMAT_A8R8G8B8_UNORM; |
| case MESA_FORMAT_B8G8R8X8_SRGB: |
| return MESA_FORMAT_B8G8R8X8_UNORM; |
| case MESA_FORMAT_X8R8G8B8_SRGB: |
| return MESA_FORMAT_X8R8G8B8_UNORM; |
| case MESA_FORMAT_R8G8B8A8_SRGB: |
| return MESA_FORMAT_R8G8B8A8_UNORM; |
| case MESA_FORMAT_R8G8B8X8_SRGB: |
| return MESA_FORMAT_R8G8B8X8_UNORM; |
| case MESA_FORMAT_X8B8G8R8_SRGB: |
| return MESA_FORMAT_X8B8G8R8_UNORM; |
| case MESA_FORMAT_R_SRGB8: |
| return MESA_FORMAT_R_UNORM8; |
| case MESA_FORMAT_L_SRGB8: |
| return MESA_FORMAT_L_UNORM8; |
| case MESA_FORMAT_LA_SRGB8: |
| return MESA_FORMAT_LA_UNORM8; |
| case MESA_FORMAT_BGR_SRGB8: |
| return MESA_FORMAT_BGR_UNORM8; |
| case MESA_FORMAT_SRGB_DXT1: |
| return MESA_FORMAT_RGB_DXT1; |
| case MESA_FORMAT_SRGBA_DXT1: |
| return MESA_FORMAT_RGBA_DXT1; |
| case MESA_FORMAT_SRGBA_DXT3: |
| return MESA_FORMAT_RGBA_DXT3; |
| case MESA_FORMAT_SRGBA_DXT5: |
| return MESA_FORMAT_RGBA_DXT5; |
| case MESA_FORMAT_ETC2_SRGB8: |
| return MESA_FORMAT_ETC2_RGB8; |
| case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: |
| return MESA_FORMAT_ETC2_RGBA8_EAC; |
| case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: |
| return MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1; |
| case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM: |
| return MESA_FORMAT_BPTC_RGBA_UNORM; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4: |
| return MESA_FORMAT_RGBA_ASTC_4x4; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4: |
| return MESA_FORMAT_RGBA_ASTC_5x4; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5: |
| return MESA_FORMAT_RGBA_ASTC_5x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5: |
| return MESA_FORMAT_RGBA_ASTC_6x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6: |
| return MESA_FORMAT_RGBA_ASTC_6x6; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5: |
| return MESA_FORMAT_RGBA_ASTC_8x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6: |
| return MESA_FORMAT_RGBA_ASTC_8x6; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8: |
| return MESA_FORMAT_RGBA_ASTC_8x8; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5: |
| return MESA_FORMAT_RGBA_ASTC_10x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6: |
| return MESA_FORMAT_RGBA_ASTC_10x6; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8: |
| return MESA_FORMAT_RGBA_ASTC_10x8; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10: |
| return MESA_FORMAT_RGBA_ASTC_10x10; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10: |
| return MESA_FORMAT_RGBA_ASTC_12x10; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12: |
| return MESA_FORMAT_RGBA_ASTC_12x12; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_3x3x3: |
| return MESA_FORMAT_RGBA_ASTC_3x3x3; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x3x3: |
| return MESA_FORMAT_RGBA_ASTC_4x3x3; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4x3: |
| return MESA_FORMAT_RGBA_ASTC_4x4x3; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4x4: |
| return MESA_FORMAT_RGBA_ASTC_4x4x4; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4x4: |
| return MESA_FORMAT_RGBA_ASTC_5x4x4; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5x4: |
| return MESA_FORMAT_RGBA_ASTC_5x5x4; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5x5: |
| return MESA_FORMAT_RGBA_ASTC_5x5x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5x5: |
| return MESA_FORMAT_RGBA_ASTC_6x5x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6x5: |
| return MESA_FORMAT_RGBA_ASTC_6x6x5; |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6x6: |
| return MESA_FORMAT_RGBA_ASTC_6x6x6; |
| default: |
| return format; |
| } |
| } |
| |
| /** |
| * For a linear format, return the corresponding sRGB color space format. |
| * For an sRGB format, return the format as-is. |
| * Assert-fails if the format is not sRGB and does not have an sRGB equivalent. |
| */ |
| mesa_format |
| _mesa_get_linear_format_srgb(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_A8B8G8R8_UNORM: |
| return MESA_FORMAT_A8B8G8R8_SRGB; |
| case MESA_FORMAT_B8G8R8A8_UNORM: |
| return MESA_FORMAT_B8G8R8A8_SRGB; |
| case MESA_FORMAT_A8R8G8B8_UNORM: |
| return MESA_FORMAT_A8R8G8B8_SRGB; |
| case MESA_FORMAT_B8G8R8X8_UNORM: |
| return MESA_FORMAT_B8G8R8X8_SRGB; |
| case MESA_FORMAT_X8R8G8B8_UNORM: |
| return MESA_FORMAT_X8R8G8B8_SRGB; |
| case MESA_FORMAT_R8G8B8A8_UNORM: |
| return MESA_FORMAT_R8G8B8A8_SRGB; |
| case MESA_FORMAT_R8G8B8X8_UNORM: |
| return MESA_FORMAT_R8G8B8X8_SRGB; |
| case MESA_FORMAT_X8B8G8R8_UNORM: |
| return MESA_FORMAT_X8B8G8R8_SRGB; |
| case MESA_FORMAT_R_UNORM8: |
| return MESA_FORMAT_R_SRGB8; |
| case MESA_FORMAT_L_UNORM8: |
| return MESA_FORMAT_L_SRGB8; |
| case MESA_FORMAT_LA_UNORM8: |
| return MESA_FORMAT_LA_SRGB8; |
| case MESA_FORMAT_BGR_UNORM8: |
| return MESA_FORMAT_BGR_SRGB8; |
| case MESA_FORMAT_RGB_DXT1: |
| return MESA_FORMAT_SRGB_DXT1; |
| case MESA_FORMAT_RGBA_DXT1: |
| return MESA_FORMAT_SRGBA_DXT1; |
| case MESA_FORMAT_RGBA_DXT3: |
| return MESA_FORMAT_SRGBA_DXT3; |
| case MESA_FORMAT_RGBA_DXT5: |
| return MESA_FORMAT_SRGBA_DXT5; |
| case MESA_FORMAT_ETC2_RGB8: |
| return MESA_FORMAT_ETC2_SRGB8; |
| case MESA_FORMAT_ETC2_RGBA8_EAC: |
| return MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC; |
| case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: |
| return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1; |
| case MESA_FORMAT_BPTC_RGBA_UNORM: |
| return MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM; |
| case MESA_FORMAT_RGBA_ASTC_4x4: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4; |
| case MESA_FORMAT_RGBA_ASTC_5x4: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4; |
| case MESA_FORMAT_RGBA_ASTC_5x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5; |
| case MESA_FORMAT_RGBA_ASTC_6x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5; |
| case MESA_FORMAT_RGBA_ASTC_6x6: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6; |
| case MESA_FORMAT_RGBA_ASTC_8x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5; |
| case MESA_FORMAT_RGBA_ASTC_8x6: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6; |
| case MESA_FORMAT_RGBA_ASTC_8x8: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8; |
| case MESA_FORMAT_RGBA_ASTC_10x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5; |
| case MESA_FORMAT_RGBA_ASTC_10x6: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6; |
| case MESA_FORMAT_RGBA_ASTC_10x8: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8; |
| case MESA_FORMAT_RGBA_ASTC_10x10: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10; |
| case MESA_FORMAT_RGBA_ASTC_12x10: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10; |
| case MESA_FORMAT_RGBA_ASTC_12x12: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12; |
| case MESA_FORMAT_RGBA_ASTC_3x3x3: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_3x3x3; |
| case MESA_FORMAT_RGBA_ASTC_4x3x3: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x3x3; |
| case MESA_FORMAT_RGBA_ASTC_4x4x3: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4x3; |
| case MESA_FORMAT_RGBA_ASTC_4x4x4: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4x4; |
| case MESA_FORMAT_RGBA_ASTC_5x4x4: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4x4; |
| case MESA_FORMAT_RGBA_ASTC_5x5x4: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5x4; |
| case MESA_FORMAT_RGBA_ASTC_5x5x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5x5; |
| case MESA_FORMAT_RGBA_ASTC_6x5x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5x5; |
| case MESA_FORMAT_RGBA_ASTC_6x6x5: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6x5; |
| case MESA_FORMAT_RGBA_ASTC_6x6x6: |
| return MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6x6; |
| case MESA_FORMAT_A8B8G8R8_SRGB: |
| case MESA_FORMAT_B8G8R8A8_SRGB: |
| case MESA_FORMAT_A8R8G8B8_SRGB: |
| case MESA_FORMAT_B8G8R8X8_SRGB: |
| case MESA_FORMAT_X8R8G8B8_SRGB: |
| case MESA_FORMAT_R8G8B8A8_SRGB: |
| case MESA_FORMAT_R8G8B8X8_SRGB: |
| case MESA_FORMAT_X8B8G8R8_SRGB: |
| case MESA_FORMAT_R_SRGB8: |
| case MESA_FORMAT_L_SRGB8: |
| case MESA_FORMAT_LA_SRGB8: |
| case MESA_FORMAT_BGR_SRGB8: |
| case MESA_FORMAT_SRGB_DXT1: |
| case MESA_FORMAT_SRGBA_DXT1: |
| case MESA_FORMAT_SRGBA_DXT3: |
| case MESA_FORMAT_SRGBA_DXT5: |
| case MESA_FORMAT_ETC2_SRGB8: |
| case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: |
| case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: |
| case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_3x3x3: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x3x3: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4x3: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4x4: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4x4: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5x4: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6x5: |
| case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6x6: |
| return format; |
| default: |
| unreachable("Given format does not have an sRGB equivalent"); |
| } |
| } |
| |
| /** |
| * For an intensity format, return the corresponding red format. For other |
| * formats, return the format as-is. |
| */ |
| mesa_format |
| _mesa_get_intensity_format_red(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_I_UNORM8: |
| return MESA_FORMAT_R_UNORM8; |
| case MESA_FORMAT_I_UNORM16: |
| return MESA_FORMAT_R_UNORM16; |
| case MESA_FORMAT_I_SNORM8: |
| return MESA_FORMAT_R_SNORM8; |
| case MESA_FORMAT_I_SNORM16: |
| return MESA_FORMAT_R_SNORM16; |
| case MESA_FORMAT_I_FLOAT16: |
| return MESA_FORMAT_R_FLOAT16; |
| case MESA_FORMAT_I_FLOAT32: |
| return MESA_FORMAT_R_FLOAT32; |
| case MESA_FORMAT_I_UINT8: |
| return MESA_FORMAT_R_UINT8; |
| case MESA_FORMAT_I_UINT16: |
| return MESA_FORMAT_R_UINT16; |
| case MESA_FORMAT_I_UINT32: |
| return MESA_FORMAT_R_UINT32; |
| case MESA_FORMAT_I_SINT8: |
| return MESA_FORMAT_R_SINT8; |
| case MESA_FORMAT_I_SINT16: |
| return MESA_FORMAT_R_SINT16; |
| case MESA_FORMAT_I_SINT32: |
| return MESA_FORMAT_R_SINT32; |
| default: |
| return format; |
| } |
| } |
| |
| /** |
| * If the format has an alpha channel, and there exists a non-alpha |
| * variant of the format with an identical bit layout, then return |
| * the non-alpha format. Otherwise return the original format. |
| * |
| * Examples: |
| * Fallback exists: |
| * MESA_FORMAT_R8G8B8X8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM |
| * MESA_FORMAT_RGBX_UNORM16 -> MESA_FORMAT_RGBA_UNORM16 |
| * |
| * No fallback: |
| * MESA_FORMAT_R8G8B8A8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM |
| * MESA_FORMAT_Z_FLOAT32 -> MESA_FORMAT_Z_FLOAT32 |
| */ |
| mesa_format |
| _mesa_format_fallback_rgbx_to_rgba(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_X8B8G8R8_UNORM: |
| return MESA_FORMAT_A8B8G8R8_UNORM; |
| case MESA_FORMAT_R8G8B8X8_UNORM: |
| return MESA_FORMAT_R8G8B8A8_UNORM; |
| case MESA_FORMAT_B8G8R8X8_UNORM: |
| return MESA_FORMAT_B8G8R8A8_UNORM; |
| case MESA_FORMAT_X8R8G8B8_UNORM: |
| return MESA_FORMAT_A8R8G8B8_UNORM; |
| case MESA_FORMAT_B4G4R4X4_UNORM: |
| return MESA_FORMAT_B4G4R4A4_UNORM; |
| case MESA_FORMAT_X1B5G5R5_UNORM: |
| return MESA_FORMAT_A1B5G5R5_UNORM; |
| case MESA_FORMAT_B5G5R5X1_UNORM: |
| return MESA_FORMAT_B5G5R5A1_UNORM; |
| case MESA_FORMAT_B10G10R10X2_UNORM: |
| return MESA_FORMAT_B10G10R10A2_UNORM; |
| case MESA_FORMAT_R10G10B10X2_UNORM: |
| return MESA_FORMAT_R10G10B10A2_UNORM; |
| case MESA_FORMAT_RGBX_UNORM16: |
| return MESA_FORMAT_RGBA_UNORM16; |
| case MESA_FORMAT_X8B8G8R8_SNORM: |
| return MESA_FORMAT_A8B8G8R8_SNORM; |
| case MESA_FORMAT_R8G8B8X8_SNORM: |
| return MESA_FORMAT_R8G8B8A8_SNORM; |
| case MESA_FORMAT_RGBX_SNORM16: |
| return MESA_FORMAT_RGBA_SNORM16; |
| case MESA_FORMAT_B8G8R8X8_SRGB: |
| return MESA_FORMAT_B8G8R8A8_SRGB; |
| case MESA_FORMAT_X8R8G8B8_SRGB: |
| return MESA_FORMAT_A8R8G8B8_SRGB; |
| case MESA_FORMAT_R8G8B8X8_SRGB: |
| return MESA_FORMAT_R8G8B8A8_SRGB; |
| case MESA_FORMAT_X8B8G8R8_SRGB: |
| return MESA_FORMAT_A8B8G8R8_SRGB; |
| case MESA_FORMAT_RGBX_FLOAT16: |
| return MESA_FORMAT_RGBA_FLOAT16; |
| case MESA_FORMAT_RGBX_FLOAT32: |
| return MESA_FORMAT_RGBA_FLOAT32; |
| case MESA_FORMAT_RGBX_UINT16: |
| return MESA_FORMAT_RGBA_UINT16; |
| case MESA_FORMAT_RGBX_UINT32: |
| return MESA_FORMAT_RGBA_UINT32; |
| case MESA_FORMAT_RGBX_SINT8: |
| return MESA_FORMAT_RGBA_SINT8; |
| case MESA_FORMAT_RGBX_SINT16: |
| return MESA_FORMAT_RGBA_SINT16; |
| case MESA_FORMAT_RGBX_SINT32: |
| return MESA_FORMAT_RGBA_SINT32; |
| default: |
| return format; |
| } |
| } |
