/* * Mesa 3-D graphics library * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * Copyright (c) 2008-2009 VMware, Inc. * * 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, sublicense, * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS 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 "imports.h" #include "formats.h" #include "macros.h" #include "glformats.h" /** * Information about texture formats. */ struct gl_format_info { mesa_format Name; /** text name for debugging */ const char *StrName; enum mesa_format_layout Layout; /** * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA, * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA, * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL. */ GLenum BaseFormat; /** * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED, * GL_UNSIGNED_INT, GL_INT, GL_FLOAT. */ GLenum DataType; GLubyte RedBits; GLubyte GreenBits; GLubyte BlueBits; GLubyte AlphaBits; GLubyte LuminanceBits; GLubyte IntensityBits; GLubyte DepthBits; GLubyte StencilBits; /** * To describe compressed formats. If not compressed, Width=Height=1. */ GLubyte BlockWidth, BlockHeight; GLubyte BytesPerBlock; uint8_t Swizzle[4]; }; #include "format_info.c" static const struct gl_format_info * _mesa_get_format_info(mesa_format format) { const struct gl_format_info *info = &format_info[format]; assert(info->Name == format); return info; } /** Return string name of format (for debugging) */ const char * _mesa_get_format_name(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return info->StrName; } /** * Return bytes needed to store a block of pixels in the given format. * Normally, a block is 1x1 (a single pixel). But for compressed formats * a block may be 4x4 or 8x4, etc. * * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351 */ GLint _mesa_get_format_bytes(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); ASSERT(info->BytesPerBlock); ASSERT(info->BytesPerBlock <= MAX_PIXEL_BYTES || _mesa_is_format_compressed(format)); return info->BytesPerBlock; } /** * Return bits per component for the given format. * \param format one of MESA_FORMAT_x * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc. */ GLint _mesa_get_format_bits(mesa_format format, GLenum pname) { const struct gl_format_info *info = _mesa_get_format_info(format); switch (pname) { case GL_RED_BITS: case GL_TEXTURE_RED_SIZE: case GL_RENDERBUFFER_RED_SIZE_EXT: case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: return info->RedBits; case GL_GREEN_BITS: case GL_TEXTURE_GREEN_SIZE: case GL_RENDERBUFFER_GREEN_SIZE_EXT: case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: return info->GreenBits; case GL_BLUE_BITS: case GL_TEXTURE_BLUE_SIZE: case GL_RENDERBUFFER_BLUE_SIZE_EXT: case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: return info->BlueBits; case GL_ALPHA_BITS: case GL_TEXTURE_ALPHA_SIZE: case GL_RENDERBUFFER_ALPHA_SIZE_EXT: case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: return info->AlphaBits; case GL_TEXTURE_INTENSITY_SIZE: return info->IntensityBits; case GL_TEXTURE_LUMINANCE_SIZE: return info->LuminanceBits; case GL_INDEX_BITS: return 0; case GL_DEPTH_BITS: case GL_TEXTURE_DEPTH_SIZE_ARB: case GL_RENDERBUFFER_DEPTH_SIZE_EXT: case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: return info->DepthBits; case GL_STENCIL_BITS: case GL_TEXTURE_STENCIL_SIZE_EXT: case GL_RENDERBUFFER_STENCIL_SIZE_EXT: case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: return info->StencilBits; default: _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()"); return 0; } } GLuint _mesa_get_format_max_bits(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); GLuint max = MAX2(info->RedBits, info->GreenBits); max = MAX2(max, info->BlueBits); max = MAX2(max, info->AlphaBits); max = MAX2(max, info->LuminanceBits); max = MAX2(max, info->IntensityBits); max = MAX2(max, info->DepthBits); max = MAX2(max, info->StencilBits); return max; } /** * Return the layout type of the given format. * The return value will be one of: * MESA_FORMAT_LAYOUT_ARRAY * MESA_FORMAT_LAYOUT_PACKED * MESA_FORMAT_LAYOUT_OTHER */ extern enum mesa_format_layout _mesa_get_format_layout(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return info->Layout; } /** * Return the data type (or more specifically, the data representation) * for the given format. * The return value will be one of: * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1] * GL_SIGNED_NORMALIZED = signed int representing [-1, 1] * GL_UNSIGNED_INT = an ordinary unsigned integer * GL_INT = an ordinary signed integer * GL_FLOAT = an ordinary float */ GLenum _mesa_get_format_datatype(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return info->DataType; } /** * Return the basic format for the given type. The result will be one of * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL. */ GLenum _mesa_get_format_base_format(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return info->BaseFormat; } /** * Return the block size (in pixels) for the given format. Normally * the block size is 1x1. But compressed formats will have block sizes * of 4x4 or 8x4 pixels, etc. * \param bw returns block width in pixels * \param bh returns block height in pixels */ void _mesa_get_format_block_size(mesa_format format, GLuint *bw, GLuint *bh) { const struct gl_format_info *info = _mesa_get_format_info(format); *bw = info->BlockWidth; *bh = info->BlockHeight; } /** * Returns the an array of four numbers representing the transformation * from the RGBA or SZ colorspace to the given format. For array formats, * the i'th RGBA component is given by: * * if (swizzle[i] <= MESA_FORMAT_SWIZZLE_W) * comp = data[swizzle[i]]; * else if (swizzle[i] == MESA_FORMAT_SWIZZLE_ZERO) * comp = 0; * else if (swizzle[i] == MESA_FORMAT_SWIZZLE_ONE) * comp = 1; * else if (swizzle[i] == MESA_FORMAT_SWIZZLE_NONE) * // data does not contain a channel of this format * * For packed formats, the swizzle gives the number of components left of * the least significant bit. * * Compressed formats have no swizzle. */ void _mesa_get_format_swizzle(mesa_format format, uint8_t swizzle_out[4]) { const struct gl_format_info *info = _mesa_get_format_info(format); memcpy(swizzle_out, info->Swizzle, sizeof(info->Swizzle)); } /** Is the given format a compressed format? */ GLboolean _mesa_is_format_compressed(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return info->BlockWidth > 1 || info->BlockHeight > 1; } /** * Determine if the given format represents a packed depth/stencil buffer. */ GLboolean _mesa_is_format_packed_depth_stencil(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return info->BaseFormat == GL_DEPTH_STENCIL; } /** * Is the given format a signed/unsigned integer color format? */ GLboolean _mesa_is_format_integer_color(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) && info->BaseFormat != GL_DEPTH_COMPONENT && info->BaseFormat != GL_DEPTH_STENCIL && info->BaseFormat != GL_STENCIL_INDEX; } /** * Is the given format an unsigned integer format? */ GLboolean _mesa_is_format_unsigned(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return _mesa_is_type_unsigned(info->DataType); } /** * Does the given format store signed values? */ GLboolean _mesa_is_format_signed(mesa_format format) { if (format == MESA_FORMAT_R11G11B10_FLOAT || format == MESA_FORMAT_R9G9B9E5_FLOAT) { /* these packed float formats only store unsigned values */ return GL_FALSE; } else { const struct gl_format_info *info = _mesa_get_format_info(format); return (info->DataType == GL_SIGNED_NORMALIZED || info->DataType == GL_INT || info->DataType == GL_FLOAT); } } /** * Is the given format an integer format? */ GLboolean _mesa_is_format_integer(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT); } /** * Return color encoding for given format. * \return GL_LINEAR or GL_SRGB */ GLenum _mesa_get_format_color_encoding(mesa_format format) { /* XXX this info should be encoded in gl_format_info */ switch (format) { case MESA_FORMAT_BGR_SRGB8: case MESA_FORMAT_A8B8G8R8_SRGB: case MESA_FORMAT_B8G8R8A8_SRGB: case MESA_FORMAT_R8G8B8A8_SRGB: case MESA_FORMAT_L_SRGB8: case MESA_FORMAT_L8A8_SRGB: case MESA_FORMAT_SRGB_DXT1: case MESA_FORMAT_SRGBA_DXT1: case MESA_FORMAT_SRGBA_DXT3: case MESA_FORMAT_SRGBA_DXT5: case MESA_FORMAT_R8G8B8X8_SRGB: case MESA_FORMAT_ETC2_SRGB8: case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: case MESA_FORMAT_B8G8R8X8_SRGB: return GL_SRGB; default: return GL_LINEAR; } } /** * Return TRUE if format is an ETC2 compressed format specified * by GL_ARB_ES3_compatibility. */ bool _mesa_is_format_etc2(mesa_format format) { switch (format) { case MESA_FORMAT_ETC2_RGB8: case MESA_FORMAT_ETC2_SRGB8: case MESA_FORMAT_ETC2_RGBA8_EAC: case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: case MESA_FORMAT_ETC2_R11_EAC: case MESA_FORMAT_ETC2_RG11_EAC: case MESA_FORMAT_ETC2_SIGNED_R11_EAC: case MESA_FORMAT_ETC2_SIGNED_RG11_EAC: case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: return GL_TRUE; default: return GL_FALSE; } } /** * 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_BGR_SRGB8: format = MESA_FORMAT_BGR_UNORM8; break; case MESA_FORMAT_A8B8G8R8_SRGB: format = MESA_FORMAT_A8B8G8R8_UNORM; break; case MESA_FORMAT_B8G8R8A8_SRGB: format = MESA_FORMAT_B8G8R8A8_UNORM; break; case MESA_FORMAT_R8G8B8A8_SRGB: format = MESA_FORMAT_R8G8B8A8_UNORM; break; case MESA_FORMAT_L_SRGB8: format = MESA_FORMAT_L_UNORM8; break; case MESA_FORMAT_L8A8_SRGB: format = MESA_FORMAT_L8A8_UNORM; break; case MESA_FORMAT_SRGB_DXT1: format = MESA_FORMAT_RGB_DXT1; break; case MESA_FORMAT_SRGBA_DXT1: format = MESA_FORMAT_RGBA_DXT1; break; case MESA_FORMAT_SRGBA_DXT3: format = MESA_FORMAT_RGBA_DXT3; break; case MESA_FORMAT_SRGBA_DXT5: format = MESA_FORMAT_RGBA_DXT5; break; case MESA_FORMAT_R8G8B8X8_SRGB: format = MESA_FORMAT_R8G8B8X8_UNORM; break; case MESA_FORMAT_ETC2_SRGB8: format = MESA_FORMAT_ETC2_RGB8; break; case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: format = MESA_FORMAT_ETC2_RGBA8_EAC; break; case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: format = MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1; break; case MESA_FORMAT_B8G8R8X8_SRGB: format = MESA_FORMAT_B8G8R8X8_UNORM; break; default: break; } return format; } /** * If the given format is a compressed format, return a corresponding * uncompressed format. */ mesa_format _mesa_get_uncompressed_format(mesa_format format) { switch (format) { case MESA_FORMAT_RGB_FXT1: return MESA_FORMAT_BGR_UNORM8; case MESA_FORMAT_RGBA_FXT1: return MESA_FORMAT_A8B8G8R8_UNORM; case MESA_FORMAT_RGB_DXT1: case MESA_FORMAT_SRGB_DXT1: return MESA_FORMAT_BGR_UNORM8; case MESA_FORMAT_RGBA_DXT1: case MESA_FORMAT_SRGBA_DXT1: return MESA_FORMAT_A8B8G8R8_UNORM; case MESA_FORMAT_RGBA_DXT3: case MESA_FORMAT_SRGBA_DXT3: return MESA_FORMAT_A8B8G8R8_UNORM; case MESA_FORMAT_RGBA_DXT5: case MESA_FORMAT_SRGBA_DXT5: return MESA_FORMAT_A8B8G8R8_UNORM; case MESA_FORMAT_R_RGTC1_UNORM: return MESA_FORMAT_R_UNORM8; case MESA_FORMAT_R_RGTC1_SNORM: return MESA_FORMAT_R_SNORM8; case MESA_FORMAT_RG_RGTC2_UNORM: return MESA_FORMAT_R8G8_UNORM; case MESA_FORMAT_RG_RGTC2_SNORM: return MESA_FORMAT_R8G8_SNORM; case MESA_FORMAT_L_LATC1_UNORM: return MESA_FORMAT_L_UNORM8; case MESA_FORMAT_L_LATC1_SNORM: return MESA_FORMAT_L_SNORM8; case MESA_FORMAT_LA_LATC2_UNORM: return MESA_FORMAT_L8A8_UNORM; case MESA_FORMAT_LA_LATC2_SNORM: return MESA_FORMAT_L8A8_SNORM; case MESA_FORMAT_ETC1_RGB8: case MESA_FORMAT_ETC2_RGB8: case MESA_FORMAT_ETC2_SRGB8: return MESA_FORMAT_BGR_UNORM8; case MESA_FORMAT_ETC2_RGBA8_EAC: case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: return MESA_FORMAT_A8B8G8R8_UNORM; case MESA_FORMAT_ETC2_R11_EAC: case MESA_FORMAT_ETC2_SIGNED_R11_EAC: return MESA_FORMAT_R_UNORM16; case MESA_FORMAT_ETC2_RG11_EAC: case MESA_FORMAT_ETC2_SIGNED_RG11_EAC: return MESA_FORMAT_R16G16_UNORM; default: #ifdef DEBUG assert(!_mesa_is_format_compressed(format)); #endif return format; } } GLuint _mesa_format_num_components(mesa_format format) { const struct gl_format_info *info = _mesa_get_format_info(format); return ((info->RedBits > 0) + (info->GreenBits > 0) + (info->BlueBits > 0) + (info->AlphaBits > 0) + (info->LuminanceBits > 0) + (info->IntensityBits > 0) + (info->DepthBits > 0) + (info->StencilBits > 0)); } /** * Returns true if a color format has data stored in the R/G/B/A channels, * given an index from 0 to 3. */ bool _mesa_format_has_color_component(mesa_format format, int component) { const struct gl_format_info *info = _mesa_get_format_info(format); assert(info->BaseFormat != GL_DEPTH_COMPONENT && info->BaseFormat != GL_DEPTH_STENCIL && info->BaseFormat != GL_STENCIL_INDEX); switch (component) { case 0: return (info->RedBits + info->IntensityBits + info->LuminanceBits) > 0; case 1: return (info->GreenBits + info->IntensityBits + info->LuminanceBits) > 0; case 2: return (info->BlueBits + info->IntensityBits + info->LuminanceBits) > 0; case 3: return (info->AlphaBits + info->IntensityBits) > 0; default: assert(!"Invalid color component: must be 0..3"); return false; } } /** * Return number of bytes needed to store an image of the given size * in the given format. */ GLuint _mesa_format_image_size(mesa_format format, GLsizei width, GLsizei height, GLsizei depth) { const struct gl_format_info *info = _mesa_get_format_info(format); /* Strictly speaking, a conditional isn't needed here */ if (info->BlockWidth > 1 || info->BlockHeight > 1) { /* compressed format (2D only for now) */ const GLuint bw = info->BlockWidth, bh = info->BlockHeight; const GLuint wblocks = (width + bw - 1) / bw; const GLuint hblocks = (height + bh - 1) / bh; const GLuint sz = wblocks * hblocks * info->BytesPerBlock; return sz * depth; } else { /* non-compressed */ const GLuint sz = width * height * depth * info->BytesPerBlock; return sz; } } /** * Same as _mesa_format_image_size() but returns a 64-bit value to * accomodate very large textures. */ uint64_t _mesa_format_image_size64(mesa_format format, GLsizei width, GLsizei height, GLsizei depth) { const struct gl_format_info *info = _mesa_get_format_info(format); /* Strictly speaking, a conditional isn't needed here */ if (info->BlockWidth > 1 || info->BlockHeight > 1) { /* compressed format (2D only for now) */ const uint64_t bw = info->BlockWidth, bh = info->BlockHeight; const uint64_t wblocks = (width + bw - 1) / bw; const uint64_t hblocks = (height + bh - 1) / bh; const uint64_t sz = wblocks * hblocks * info->BytesPerBlock; return sz * depth; } else { /* non-compressed */ const uint64_t sz = ((uint64_t) width * (uint64_t) height * (uint64_t) depth * info->BytesPerBlock); return sz; } } GLint _mesa_format_row_stride(mesa_format format, GLsizei width) { const struct gl_format_info *info = _mesa_get_format_info(format); /* Strictly speaking, a conditional isn't needed here */ if (info->BlockWidth > 1 || info->BlockHeight > 1) { /* compressed format */ const GLuint bw = info->BlockWidth; const GLuint wblocks = (width + bw - 1) / bw; const GLint stride = wblocks * info->BytesPerBlock; return stride; } else { const GLint stride = width * info->BytesPerBlock; return stride; } } /** * Debug/test: check that all formats are handled in the * _mesa_format_to_type_and_comps() function. When new pixel formats * are added to Mesa, that function needs to be updated. * This is a no-op after the first call. */ static void check_format_to_type_and_comps(void) { mesa_format f; for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) { GLenum datatype = 0; GLuint comps = 0; /* This function will emit a problem/warning if the format is * not handled. */ _mesa_format_to_type_and_comps(f, &datatype, &comps); } } /** * Do sanity checking of the format info table. */ void _mesa_test_formats(void) { GLuint i; STATIC_ASSERT(Elements(format_info) == MESA_FORMAT_COUNT); for (i = 0; i < MESA_FORMAT_COUNT; i++) { const struct gl_format_info *info = _mesa_get_format_info(i); assert(info); assert(info->Name == i); if (info->Name == MESA_FORMAT_NONE) continue; if (info->BlockWidth == 1 && info->BlockHeight == 1) { if (info->RedBits > 0) { GLuint t = info->RedBits + info->GreenBits + info->BlueBits + info->AlphaBits; assert(t / 8 <= info->BytesPerBlock); (void) t; } } assert(info->DataType == GL_UNSIGNED_NORMALIZED || info->DataType == GL_SIGNED_NORMALIZED || info->DataType == GL_UNSIGNED_INT || info->DataType == GL_INT || info->DataType == GL_FLOAT || /* Z32_FLOAT_X24S8 has DataType of GL_NONE */ info->DataType == GL_NONE); if (info->BaseFormat == GL_RGB) { assert(info->RedBits > 0); assert(info->GreenBits > 0); assert(info->BlueBits > 0); assert(info->AlphaBits == 0); assert(info->LuminanceBits == 0); assert(info->IntensityBits == 0); } else if (info->BaseFormat == GL_RGBA) { assert(info->RedBits > 0); assert(info->GreenBits > 0); assert(info->BlueBits > 0); assert(info->AlphaBits > 0); assert(info->LuminanceBits == 0); assert(info->IntensityBits == 0); } else if (info->BaseFormat == GL_RG) { assert(info->RedBits > 0); assert(info->GreenBits > 0); assert(info->BlueBits == 0); assert(info->AlphaBits == 0); assert(info->LuminanceBits == 0); assert(info->IntensityBits == 0); } else if (info->BaseFormat == GL_RED) { assert(info->RedBits > 0); assert(info->GreenBits == 0); assert(info->BlueBits == 0); assert(info->AlphaBits == 0); assert(info->LuminanceBits == 0); assert(info->IntensityBits == 0); } else if (info->BaseFormat == GL_LUMINANCE) { assert(info->RedBits == 0); assert(info->GreenBits == 0); assert(info->BlueBits == 0); assert(info->AlphaBits == 0); assert(info->LuminanceBits > 0); assert(info->IntensityBits == 0); } else if (info->BaseFormat == GL_INTENSITY) { assert(info->RedBits == 0); assert(info->GreenBits == 0); assert(info->BlueBits == 0); assert(info->AlphaBits == 0); assert(info->LuminanceBits == 0); assert(info->IntensityBits > 0); } } check_format_to_type_and_comps(); } /** * Return datatype and number of components per texel for the given mesa_format. * Only used for mipmap generation code. */ void _mesa_format_to_type_and_comps(mesa_format format, GLenum *datatype, GLuint *comps) { switch (format) { case MESA_FORMAT_A8B8G8R8_UNORM: case MESA_FORMAT_R8G8B8A8_UNORM: case MESA_FORMAT_B8G8R8A8_UNORM: case MESA_FORMAT_A8R8G8B8_UNORM: case MESA_FORMAT_X8B8G8R8_UNORM: case MESA_FORMAT_R8G8B8X8_UNORM: case MESA_FORMAT_B8G8R8X8_UNORM: case MESA_FORMAT_X8R8G8B8_UNORM: *datatype = GL_UNSIGNED_BYTE; *comps = 4; return; case MESA_FORMAT_BGR_UNORM8: case MESA_FORMAT_RGB_UNORM8: *datatype = GL_UNSIGNED_BYTE; *comps = 3; return; case MESA_FORMAT_B5G6R5_UNORM: case MESA_FORMAT_R5G6B5_UNORM: *datatype = GL_UNSIGNED_SHORT_5_6_5; *comps = 3; return; case MESA_FORMAT_B4G4R4A4_UNORM: case MESA_FORMAT_A4R4G4B4_UNORM: case MESA_FORMAT_B4G4R4X4_UNORM: *datatype = GL_UNSIGNED_SHORT_4_4_4_4; *comps = 4; return; case MESA_FORMAT_B5G5R5A1_UNORM: case MESA_FORMAT_A1R5G5B5_UNORM: case MESA_FORMAT_B5G5R5X1_UNORM: *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV; *comps = 4; return; case MESA_FORMAT_B10G10R10A2_UNORM: *datatype = GL_UNSIGNED_INT_2_10_10_10_REV; *comps = 4; return; case MESA_FORMAT_A1B5G5R5_UNORM: *datatype = GL_UNSIGNED_SHORT_5_5_5_1; *comps = 4; return; case MESA_FORMAT_L4A4_UNORM: *datatype = MESA_UNSIGNED_BYTE_4_4; *comps = 2; return; case MESA_FORMAT_L8A8_UNORM: case MESA_FORMAT_A8L8_UNORM: case MESA_FORMAT_R8G8_UNORM: case MESA_FORMAT_G8R8_UNORM: *datatype = GL_UNSIGNED_BYTE; *comps = 2; return; case MESA_FORMAT_L16A16_UNORM: case MESA_FORMAT_A16L16_UNORM: case MESA_FORMAT_R16G16_UNORM: case MESA_FORMAT_G16R16_UNORM: *datatype = GL_UNSIGNED_SHORT; *comps = 2; return; case MESA_FORMAT_R_UNORM16: case MESA_FORMAT_A_UNORM16: case MESA_FORMAT_L_UNORM16: case MESA_FORMAT_I_UNORM16: *datatype = GL_UNSIGNED_SHORT; *comps = 1; return; case MESA_FORMAT_B2G3R3_UNORM: *datatype = GL_UNSIGNED_BYTE_3_3_2; *comps = 3; return; case MESA_FORMAT_A_UNORM8: case MESA_FORMAT_L_UNORM8: case MESA_FORMAT_I_UNORM8: case MESA_FORMAT_R_UNORM8: case MESA_FORMAT_S_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 1; return; case MESA_FORMAT_YCBCR: case MESA_FORMAT_YCBCR_REV: *datatype = GL_UNSIGNED_SHORT; *comps = 2; return; case MESA_FORMAT_S8_UINT_Z24_UNORM: *datatype = GL_UNSIGNED_INT_24_8_MESA; *comps = 2; return; case MESA_FORMAT_Z24_UNORM_S8_UINT: *datatype = GL_UNSIGNED_INT_8_24_REV_MESA; *comps = 2; return; case MESA_FORMAT_Z_UNORM16: *datatype = GL_UNSIGNED_SHORT; *comps = 1; return; case MESA_FORMAT_Z24_UNORM_X8_UINT: *datatype = GL_UNSIGNED_INT; *comps = 1; return; case MESA_FORMAT_X8_UINT_Z24_UNORM: *datatype = GL_UNSIGNED_INT; *comps = 1; return; case MESA_FORMAT_Z_UNORM32: *datatype = GL_UNSIGNED_INT; *comps = 1; return; case MESA_FORMAT_Z_FLOAT32: *datatype = GL_FLOAT; *comps = 1; return; case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV; *comps = 1; return; case MESA_FORMAT_R_SNORM8: case MESA_FORMAT_A_SNORM8: case MESA_FORMAT_L_SNORM8: case MESA_FORMAT_I_SNORM8: *datatype = GL_BYTE; *comps = 1; return; case MESA_FORMAT_R8G8_SNORM: case MESA_FORMAT_L8A8_SNORM: *datatype = GL_BYTE; *comps = 2; return; case MESA_FORMAT_A8B8G8R8_SNORM: case MESA_FORMAT_R8G8B8A8_SNORM: case MESA_FORMAT_X8B8G8R8_SNORM: *datatype = GL_BYTE; *comps = 4; return; case MESA_FORMAT_RGBA_UNORM16: *datatype = GL_UNSIGNED_SHORT; *comps = 4; return; case MESA_FORMAT_R_SNORM16: case MESA_FORMAT_A_SNORM16: case MESA_FORMAT_L_SNORM16: case MESA_FORMAT_I_SNORM16: *datatype = GL_SHORT; *comps = 1; return; case MESA_FORMAT_R16G16_SNORM: case MESA_FORMAT_LA_SNORM16: *datatype = GL_SHORT; *comps = 2; return; case MESA_FORMAT_RGB_SNORM16: *datatype = GL_SHORT; *comps = 3; return; case MESA_FORMAT_RGBA_SNORM16: *datatype = GL_SHORT; *comps = 4; return; case MESA_FORMAT_BGR_SRGB8: *datatype = GL_UNSIGNED_BYTE; *comps = 3; return; case MESA_FORMAT_A8B8G8R8_SRGB: case MESA_FORMAT_B8G8R8A8_SRGB: case MESA_FORMAT_R8G8B8A8_SRGB: *datatype = GL_UNSIGNED_BYTE; *comps = 4; return; case MESA_FORMAT_L_SRGB8: *datatype = GL_UNSIGNED_BYTE; *comps = 1; return; case MESA_FORMAT_L8A8_SRGB: *datatype = GL_UNSIGNED_BYTE; *comps = 2; return; case MESA_FORMAT_RGB_FXT1: case MESA_FORMAT_RGBA_FXT1: case MESA_FORMAT_RGB_DXT1: case MESA_FORMAT_RGBA_DXT1: case MESA_FORMAT_RGBA_DXT3: case MESA_FORMAT_RGBA_DXT5: case MESA_FORMAT_SRGB_DXT1: case MESA_FORMAT_SRGBA_DXT1: case MESA_FORMAT_SRGBA_DXT3: case MESA_FORMAT_SRGBA_DXT5: case MESA_FORMAT_R_RGTC1_UNORM: case MESA_FORMAT_R_RGTC1_SNORM: case MESA_FORMAT_RG_RGTC2_UNORM: case MESA_FORMAT_RG_RGTC2_SNORM: case MESA_FORMAT_L_LATC1_UNORM: case MESA_FORMAT_L_LATC1_SNORM: case MESA_FORMAT_LA_LATC2_UNORM: case MESA_FORMAT_LA_LATC2_SNORM: case MESA_FORMAT_ETC1_RGB8: case MESA_FORMAT_ETC2_RGB8: case MESA_FORMAT_ETC2_SRGB8: case MESA_FORMAT_ETC2_RGBA8_EAC: case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: case MESA_FORMAT_ETC2_R11_EAC: case MESA_FORMAT_ETC2_RG11_EAC: case MESA_FORMAT_ETC2_SIGNED_R11_EAC: case MESA_FORMAT_ETC2_SIGNED_RG11_EAC: case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: /* XXX generate error instead? */ *datatype = GL_UNSIGNED_BYTE; *comps = 0; return; case MESA_FORMAT_RGBA_FLOAT32: *datatype = GL_FLOAT; *comps = 4; return; case MESA_FORMAT_RGBA_FLOAT16: *datatype = GL_HALF_FLOAT_ARB; *comps = 4; return; case MESA_FORMAT_RGB_FLOAT32: *datatype = GL_FLOAT; *comps = 3; return; case MESA_FORMAT_RGB_FLOAT16: *datatype = GL_HALF_FLOAT_ARB; *comps = 3; return; case MESA_FORMAT_LA_FLOAT32: case MESA_FORMAT_RG_FLOAT32: *datatype = GL_FLOAT; *comps = 2; return; case MESA_FORMAT_LA_FLOAT16: case MESA_FORMAT_RG_FLOAT16: *datatype = GL_HALF_FLOAT_ARB; *comps = 2; return; case MESA_FORMAT_A_FLOAT32: case MESA_FORMAT_L_FLOAT32: case MESA_FORMAT_I_FLOAT32: case MESA_FORMAT_R_FLOAT32: *datatype = GL_FLOAT; *comps = 1; return; case MESA_FORMAT_A_FLOAT16: case MESA_FORMAT_L_FLOAT16: case MESA_FORMAT_I_FLOAT16: case MESA_FORMAT_R_FLOAT16: *datatype = GL_HALF_FLOAT_ARB; *comps = 1; return; case MESA_FORMAT_A_UINT8: case MESA_FORMAT_L_UINT8: case MESA_FORMAT_I_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 1; return; case MESA_FORMAT_LA_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 2; return; case MESA_FORMAT_A_UINT16: case MESA_FORMAT_L_UINT16: case MESA_FORMAT_I_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 1; return; case MESA_FORMAT_LA_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 2; return; case MESA_FORMAT_A_UINT32: case MESA_FORMAT_L_UINT32: case MESA_FORMAT_I_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 1; return; case MESA_FORMAT_LA_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 2; return; case MESA_FORMAT_A_SINT8: case MESA_FORMAT_L_SINT8: case MESA_FORMAT_I_SINT8: *datatype = GL_BYTE; *comps = 1; return; case MESA_FORMAT_LA_SINT8: *datatype = GL_BYTE; *comps = 2; return; case MESA_FORMAT_A_SINT16: case MESA_FORMAT_L_SINT16: case MESA_FORMAT_I_SINT16: *datatype = GL_SHORT; *comps = 1; return; case MESA_FORMAT_LA_SINT16: *datatype = GL_SHORT; *comps = 2; return; case MESA_FORMAT_A_SINT32: case MESA_FORMAT_L_SINT32: case MESA_FORMAT_I_SINT32: *datatype = GL_INT; *comps = 1; return; case MESA_FORMAT_LA_SINT32: *datatype = GL_INT; *comps = 2; return; case MESA_FORMAT_R_SINT8: *datatype = GL_BYTE; *comps = 1; return; case MESA_FORMAT_RG_SINT8: *datatype = GL_BYTE; *comps = 2; return; case MESA_FORMAT_RGB_SINT8: *datatype = GL_BYTE; *comps = 3; return; case MESA_FORMAT_RGBA_SINT8: *datatype = GL_BYTE; *comps = 4; return; case MESA_FORMAT_R_SINT16: *datatype = GL_SHORT; *comps = 1; return; case MESA_FORMAT_RG_SINT16: *datatype = GL_SHORT; *comps = 2; return; case MESA_FORMAT_RGB_SINT16: *datatype = GL_SHORT; *comps = 3; return; case MESA_FORMAT_RGBA_SINT16: *datatype = GL_SHORT; *comps = 4; return; case MESA_FORMAT_R_SINT32: *datatype = GL_INT; *comps = 1; return; case MESA_FORMAT_RG_SINT32: *datatype = GL_INT; *comps = 2; return; case MESA_FORMAT_RGB_SINT32: *datatype = GL_INT; *comps = 3; return; case MESA_FORMAT_RGBA_SINT32: *datatype = GL_INT; *comps = 4; return; /** * \name Non-normalized unsigned integer formats. */ case MESA_FORMAT_R_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 1; return; case MESA_FORMAT_RG_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 2; return; case MESA_FORMAT_RGB_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 3; return; case MESA_FORMAT_RGBA_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 4; return; case MESA_FORMAT_R_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 1; return; case MESA_FORMAT_RG_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 2; return; case MESA_FORMAT_RGB_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 3; return; case MESA_FORMAT_RGBA_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 4; return; case MESA_FORMAT_R_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 1; return; case MESA_FORMAT_RG_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 2; return; case MESA_FORMAT_RGB_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 3; return; case MESA_FORMAT_RGBA_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 4; return; case MESA_FORMAT_R9G9B9E5_FLOAT: *datatype = GL_UNSIGNED_INT_5_9_9_9_REV; *comps = 3; return; case MESA_FORMAT_R11G11B10_FLOAT: *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV; *comps = 3; return; case MESA_FORMAT_B10G10R10A2_UINT: case MESA_FORMAT_R10G10B10A2_UINT: *datatype = GL_UNSIGNED_INT_2_10_10_10_REV; *comps = 4; return; case MESA_FORMAT_R8G8B8X8_SRGB: case MESA_FORMAT_RGBX_UINT8: *datatype = GL_UNSIGNED_BYTE; *comps = 4; return; case MESA_FORMAT_R8G8B8X8_SNORM: case MESA_FORMAT_RGBX_SINT8: *datatype = GL_BYTE; *comps = 4; return; case MESA_FORMAT_B10G10R10X2_UNORM: *datatype = GL_UNSIGNED_INT_2_10_10_10_REV; *comps = 4; return; case MESA_FORMAT_RGBX_UNORM16: case MESA_FORMAT_RGBX_UINT16: *datatype = GL_UNSIGNED_SHORT; *comps = 4; return; case MESA_FORMAT_RGBX_SNORM16: case MESA_FORMAT_RGBX_SINT16: *datatype = GL_SHORT; *comps = 4; return; case MESA_FORMAT_RGBX_FLOAT16: *datatype = GL_HALF_FLOAT; *comps = 4; return; case MESA_FORMAT_RGBX_FLOAT32: *datatype = GL_FLOAT; *comps = 4; return; case MESA_FORMAT_RGBX_UINT32: *datatype = GL_UNSIGNED_INT; *comps = 4; return; case MESA_FORMAT_RGBX_SINT32: *datatype = GL_INT; *comps = 4; return; case MESA_FORMAT_R10G10B10A2_UNORM: *datatype = GL_UNSIGNED_INT_2_10_10_10_REV; *comps = 4; return; case MESA_FORMAT_G8R8_SNORM: *datatype = GL_BYTE; *comps = 2; return; case MESA_FORMAT_G16R16_SNORM: *datatype = GL_SHORT; *comps = 2; return; case MESA_FORMAT_B8G8R8X8_SRGB: *datatype = GL_UNSIGNED_BYTE; *comps = 4; return; case MESA_FORMAT_COUNT: assert(0); return; case MESA_FORMAT_NONE: /* For debug builds, warn if any formats are not handled */ #ifdef DEBUG default: #endif _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps", _mesa_get_format_name(format)); *datatype = 0; *comps = 1; } } /** * Check if a mesa_format exactly matches a GL format/type combination * such that we can use memcpy() from one to the other. * \param mesa_format a MESA_FORMAT_x value * \param format the user-specified image format * \param type the user-specified image datatype * \param swapBytes typically the current pixel pack/unpack byteswap state * \return GL_TRUE if the formats match, GL_FALSE otherwise. */ GLboolean _mesa_format_matches_format_and_type(mesa_format mesa_format, GLenum format, GLenum type, GLboolean swapBytes) { const GLboolean littleEndian = _mesa_little_endian(); /* Note: When reading a GL format/type combination, the format lists channel * assignments from most significant channel in the type to least * significant. A type with _REV indicates that the assignments are * swapped, so they are listed from least significant to most significant. * * For sanity, please keep this switch statement ordered the same as the * enums in formats.h. */ switch (mesa_format) { case MESA_FORMAT_NONE: case MESA_FORMAT_COUNT: return GL_FALSE; case MESA_FORMAT_A8B8G8R8_UNORM: case MESA_FORMAT_A8B8G8R8_SRGB: if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes) return GL_TRUE; if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes) return GL_TRUE; if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && !littleEndian) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV && !swapBytes) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && littleEndian) return GL_TRUE; return GL_FALSE; case MESA_FORMAT_R8G8B8A8_UNORM: case MESA_FORMAT_R8G8B8A8_SRGB: if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV && !swapBytes) return GL_TRUE; if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes) return GL_TRUE; if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && littleEndian) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && !littleEndian) return GL_TRUE; return GL_FALSE; case MESA_FORMAT_B8G8R8A8_UNORM: case MESA_FORMAT_B8G8R8A8_SRGB: if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV && !swapBytes) return GL_TRUE; if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes) return GL_TRUE; if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && littleEndian) return GL_TRUE; return GL_FALSE; case MESA_FORMAT_A8R8G8B8_UNORM: if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes) return GL_TRUE; if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes) return GL_TRUE; if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && !littleEndian) return GL_TRUE; return GL_FALSE; case MESA_FORMAT_X8B8G8R8_UNORM: case MESA_FORMAT_R8G8B8X8_UNORM: return GL_FALSE; case MESA_FORMAT_B8G8R8X8_UNORM: case MESA_FORMAT_X8R8G8B8_UNORM: return GL_FALSE; case MESA_FORMAT_BGR_UNORM8: case MESA_FORMAT_BGR_SRGB8: return format == GL_BGR && type == GL_UNSIGNED_BYTE && littleEndian; case MESA_FORMAT_RGB_UNORM8: return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian; case MESA_FORMAT_B5G6R5_UNORM: return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 && !swapBytes; case MESA_FORMAT_R5G6B5_UNORM: /* Some of the 16-bit MESA_FORMATs that would seem to correspond to * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed, * according to formats.h, so they can't be matched. */ return GL_FALSE; case MESA_FORMAT_B4G4R4A4_UNORM: return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && !swapBytes; case MESA_FORMAT_A4R4G4B4_UNORM: return GL_FALSE; case MESA_FORMAT_A1B5G5R5_UNORM: return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1 && !swapBytes; case MESA_FORMAT_B5G5R5A1_UNORM: return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV && !swapBytes; case MESA_FORMAT_A1R5G5B5_UNORM: return GL_FALSE; case MESA_FORMAT_L4A4_UNORM: return GL_FALSE; case MESA_FORMAT_L8A8_UNORM: case MESA_FORMAT_L8A8_SRGB: return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian; case MESA_FORMAT_A8L8_UNORM: return GL_FALSE; case MESA_FORMAT_L16A16_UNORM: return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian && !swapBytes; case MESA_FORMAT_A16L16_UNORM: return GL_FALSE; case MESA_FORMAT_B2G3R3_UNORM: return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2; case MESA_FORMAT_A_UNORM8: return format == GL_ALPHA && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_A_UNORM16: return format == GL_ALPHA && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_L_UNORM8: case MESA_FORMAT_L_SRGB8: return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_L_UNORM16: return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_I_UNORM8: return format == GL_RED && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_I_UNORM16: return format == GL_RED && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_YCBCR: return format == GL_YCBCR_MESA && ((type == GL_UNSIGNED_SHORT_8_8_MESA && littleEndian != swapBytes) || (type == GL_UNSIGNED_SHORT_8_8_REV_MESA && littleEndian == swapBytes)); case MESA_FORMAT_YCBCR_REV: return format == GL_YCBCR_MESA && ((type == GL_UNSIGNED_SHORT_8_8_MESA && littleEndian == swapBytes) || (type == GL_UNSIGNED_SHORT_8_8_REV_MESA && littleEndian != swapBytes)); case MESA_FORMAT_R_UNORM8: return format == GL_RED && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_R8G8_UNORM: return format == GL_RG && type == GL_UNSIGNED_BYTE && littleEndian; case MESA_FORMAT_G8R8_UNORM: return GL_FALSE; case MESA_FORMAT_R_UNORM16: return format == GL_RED && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_R16G16_UNORM: return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian && !swapBytes; case MESA_FORMAT_G16R16_UNORM: return GL_FALSE; case MESA_FORMAT_B10G10R10A2_UNORM: return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV && !swapBytes; case MESA_FORMAT_S8_UINT_Z24_UNORM: return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8 && !swapBytes; case MESA_FORMAT_X8_UINT_Z24_UNORM: case MESA_FORMAT_Z24_UNORM_S8_UINT: return GL_FALSE; case MESA_FORMAT_Z_UNORM16: return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_Z24_UNORM_X8_UINT: return GL_FALSE; case MESA_FORMAT_Z_UNORM32: return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_S_UINT8: return format == GL_STENCIL_INDEX && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_SRGB_DXT1: case MESA_FORMAT_SRGBA_DXT1: case MESA_FORMAT_SRGBA_DXT3: case MESA_FORMAT_SRGBA_DXT5: return GL_FALSE; case MESA_FORMAT_RGB_FXT1: case MESA_FORMAT_RGBA_FXT1: case MESA_FORMAT_RGB_DXT1: case MESA_FORMAT_RGBA_DXT1: case MESA_FORMAT_RGBA_DXT3: case MESA_FORMAT_RGBA_DXT5: return GL_FALSE; case MESA_FORMAT_RGBA_FLOAT32: return format == GL_RGBA && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_RGBA_FLOAT16: return format == GL_RGBA && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_RGB_FLOAT32: return format == GL_RGB && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_RGB_FLOAT16: return format == GL_RGB && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_A_FLOAT32: return format == GL_ALPHA && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_A_FLOAT16: return format == GL_ALPHA && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_L_FLOAT32: return format == GL_LUMINANCE && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_L_FLOAT16: return format == GL_LUMINANCE && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_LA_FLOAT32: return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_LA_FLOAT16: return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_I_FLOAT32: return format == GL_RED && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_I_FLOAT16: return format == GL_RED && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_R_FLOAT32: return format == GL_RED && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_R_FLOAT16: return format == GL_RED && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_RG_FLOAT32: return format == GL_RG && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_RG_FLOAT16: return format == GL_RG && type == GL_HALF_FLOAT && !swapBytes; case MESA_FORMAT_A_UINT8: return format == GL_ALPHA_INTEGER && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_A_UINT16: return format == GL_ALPHA_INTEGER && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_A_UINT32: return format == GL_ALPHA_INTEGER && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_A_SINT8: return format == GL_ALPHA_INTEGER && type == GL_BYTE; case MESA_FORMAT_A_SINT16: return format == GL_ALPHA_INTEGER && type == GL_SHORT && !swapBytes; case MESA_FORMAT_A_SINT32: return format == GL_ALPHA_INTEGER && type == GL_INT && !swapBytes; case MESA_FORMAT_I_UINT8: return format == GL_RED_INTEGER && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_I_UINT16: return format == GL_RED_INTEGER && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_I_UINT32: return format == GL_RED_INTEGER && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_I_SINT8: return format == GL_RED_INTEGER && type == GL_BYTE; case MESA_FORMAT_I_SINT16: return format == GL_RED_INTEGER && type == GL_SHORT && !swapBytes; case MESA_FORMAT_I_SINT32: return format == GL_RED_INTEGER && type == GL_INT && !swapBytes; case MESA_FORMAT_L_UINT8: return format == GL_LUMINANCE_INTEGER_EXT && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_L_UINT16: return format == GL_LUMINANCE_INTEGER_EXT && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_L_UINT32: return format == GL_LUMINANCE_INTEGER_EXT && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_L_SINT8: return format == GL_LUMINANCE_INTEGER_EXT && type == GL_BYTE; case MESA_FORMAT_L_SINT16: return format == GL_LUMINANCE_INTEGER_EXT && type == GL_SHORT && !swapBytes; case MESA_FORMAT_L_SINT32: return format == GL_LUMINANCE_INTEGER_EXT && type == GL_INT && !swapBytes; case MESA_FORMAT_LA_UINT8: return format == GL_LUMINANCE_ALPHA_INTEGER_EXT && type == GL_UNSIGNED_BYTE && !swapBytes; case MESA_FORMAT_LA_UINT16: return format == GL_LUMINANCE_ALPHA_INTEGER_EXT && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_LA_UINT32: return format == GL_LUMINANCE_ALPHA_INTEGER_EXT && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_LA_SINT8: return format == GL_LUMINANCE_ALPHA_INTEGER_EXT && type == GL_BYTE && !swapBytes; case MESA_FORMAT_LA_SINT16: return format == GL_LUMINANCE_ALPHA_INTEGER_EXT && type == GL_SHORT && !swapBytes; case MESA_FORMAT_LA_SINT32: return format == GL_LUMINANCE_ALPHA_INTEGER_EXT && type == GL_INT && !swapBytes; case MESA_FORMAT_R_SINT8: return format == GL_RED_INTEGER && type == GL_BYTE; case MESA_FORMAT_RG_SINT8: return format == GL_RG_INTEGER && type == GL_BYTE && !swapBytes; case MESA_FORMAT_RGB_SINT8: return format == GL_RGB_INTEGER && type == GL_BYTE && !swapBytes; case MESA_FORMAT_RGBA_SINT8: return format == GL_RGBA_INTEGER && type == GL_BYTE && !swapBytes; case MESA_FORMAT_R_SINT16: return format == GL_RED_INTEGER && type == GL_SHORT && !swapBytes; case MESA_FORMAT_RG_SINT16: return format == GL_RG_INTEGER && type == GL_SHORT && !swapBytes; case MESA_FORMAT_RGB_SINT16: return format == GL_RGB_INTEGER && type == GL_SHORT && !swapBytes; case MESA_FORMAT_RGBA_SINT16: return format == GL_RGBA_INTEGER && type == GL_SHORT && !swapBytes; case MESA_FORMAT_R_SINT32: return format == GL_RED_INTEGER && type == GL_INT && !swapBytes; case MESA_FORMAT_RG_SINT32: return format == GL_RG_INTEGER && type == GL_INT && !swapBytes; case MESA_FORMAT_RGB_SINT32: return format == GL_RGB_INTEGER && type == GL_INT && !swapBytes; case MESA_FORMAT_RGBA_SINT32: return format == GL_RGBA_INTEGER && type == GL_INT && !swapBytes; case MESA_FORMAT_R_UINT8: return format == GL_RED_INTEGER && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_RG_UINT8: return format == GL_RG_INTEGER && type == GL_UNSIGNED_BYTE && !swapBytes; case MESA_FORMAT_RGB_UINT8: return format == GL_RGB_INTEGER && type == GL_UNSIGNED_BYTE && !swapBytes; case MESA_FORMAT_RGBA_UINT8: return format == GL_RGBA_INTEGER && type == GL_UNSIGNED_BYTE && !swapBytes; case MESA_FORMAT_R_UINT16: return format == GL_RED_INTEGER && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_RG_UINT16: return format == GL_RG_INTEGER && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_RGB_UINT16: return format == GL_RGB_INTEGER && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_RGBA_UINT16: return format == GL_RGBA_INTEGER && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_R_UINT32: return format == GL_RED_INTEGER && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_RG_UINT32: return format == GL_RG_INTEGER && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_RGB_UINT32: return format == GL_RGB_INTEGER && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_RGBA_UINT32: return format == GL_RGBA_INTEGER && type == GL_UNSIGNED_INT && !swapBytes; case MESA_FORMAT_R_SNORM8: return format == GL_RED && type == GL_BYTE; case MESA_FORMAT_R8G8_SNORM: return format == GL_RG && type == GL_BYTE && littleEndian && !swapBytes; case MESA_FORMAT_X8B8G8R8_SNORM: return GL_FALSE; case MESA_FORMAT_A8B8G8R8_SNORM: if (format == GL_RGBA && type == GL_BYTE && !littleEndian) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_BYTE && littleEndian) return GL_TRUE; return GL_FALSE; case MESA_FORMAT_R8G8B8A8_SNORM: if (format == GL_RGBA && type == GL_BYTE && littleEndian) return GL_TRUE; if (format == GL_ABGR_EXT && type == GL_BYTE && !littleEndian) return GL_TRUE; return GL_FALSE; case MESA_FORMAT_R_SNORM16: return format == GL_RED && type == GL_SHORT && !swapBytes; case MESA_FORMAT_R16G16_SNORM: return format == GL_RG && type == GL_SHORT && littleEndian && !swapBytes; case MESA_FORMAT_RGB_SNORM16: return format == GL_RGB && type == GL_SHORT && !swapBytes; case MESA_FORMAT_RGBA_SNORM16: return format == GL_RGBA && type == GL_SHORT && !swapBytes; case MESA_FORMAT_RGBA_UNORM16: return format == GL_RGBA && type == GL_UNSIGNED_SHORT && !swapBytes; case MESA_FORMAT_R_RGTC1_UNORM: case MESA_FORMAT_R_RGTC1_SNORM: case MESA_FORMAT_RG_RGTC2_UNORM: case MESA_FORMAT_RG_RGTC2_SNORM: return GL_FALSE; case MESA_FORMAT_L_LATC1_UNORM: case MESA_FORMAT_L_LATC1_SNORM: case MESA_FORMAT_LA_LATC2_UNORM: case MESA_FORMAT_LA_LATC2_SNORM: return GL_FALSE; case MESA_FORMAT_ETC1_RGB8: case MESA_FORMAT_ETC2_RGB8: case MESA_FORMAT_ETC2_SRGB8: case MESA_FORMAT_ETC2_RGBA8_EAC: case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC: case MESA_FORMAT_ETC2_R11_EAC: case MESA_FORMAT_ETC2_RG11_EAC: case MESA_FORMAT_ETC2_SIGNED_R11_EAC: case MESA_FORMAT_ETC2_SIGNED_RG11_EAC: case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1: case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1: return GL_FALSE; case MESA_FORMAT_A_SNORM8: return format == GL_ALPHA && type == GL_BYTE; case MESA_FORMAT_L_SNORM8: return format == GL_LUMINANCE && type == GL_BYTE; case MESA_FORMAT_L8A8_SNORM: return format == GL_LUMINANCE_ALPHA && type == GL_BYTE && littleEndian && !swapBytes; case MESA_FORMAT_I_SNORM8: return format == GL_RED && type == GL_BYTE; case MESA_FORMAT_A_SNORM16: return format == GL_ALPHA && type == GL_SHORT && !swapBytes; case MESA_FORMAT_L_SNORM16: return format == GL_LUMINANCE && type == GL_SHORT && !swapBytes; case MESA_FORMAT_LA_SNORM16: return format == GL_LUMINANCE_ALPHA && type == GL_SHORT && littleEndian && !swapBytes; case MESA_FORMAT_I_SNORM16: return format == GL_RED && type == GL_SHORT && littleEndian && !swapBytes; case MESA_FORMAT_B10G10R10A2_UINT: return (format == GL_BGRA_INTEGER_EXT && type == GL_UNSIGNED_INT_2_10_10_10_REV && !swapBytes); case MESA_FORMAT_R10G10B10A2_UINT: return (format == GL_RGBA_INTEGER_EXT && type == GL_UNSIGNED_INT_2_10_10_10_REV && !swapBytes); case MESA_FORMAT_R9G9B9E5_FLOAT: return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV && !swapBytes; case MESA_FORMAT_R11G11B10_FLOAT: return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV && !swapBytes; case MESA_FORMAT_Z_FLOAT32: return format == GL_DEPTH_COMPONENT && type == GL_FLOAT && !swapBytes; case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: return format == GL_DEPTH_STENCIL && type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV && !swapBytes; case MESA_FORMAT_B4G4R4X4_UNORM: case MESA_FORMAT_B5G5R5X1_UNORM: case MESA_FORMAT_R8G8B8X8_SNORM: case MESA_FORMAT_R8G8B8X8_SRGB: case MESA_FORMAT_RGBX_UINT8: case MESA_FORMAT_RGBX_SINT8: case MESA_FORMAT_B10G10R10X2_UNORM: case MESA_FORMAT_RGBX_UNORM16: case MESA_FORMAT_RGBX_SNORM16: case MESA_FORMAT_RGBX_FLOAT16: case MESA_FORMAT_RGBX_UINT16: case MESA_FORMAT_RGBX_SINT16: case MESA_FORMAT_RGBX_FLOAT32: case MESA_FORMAT_RGBX_UINT32: case MESA_FORMAT_RGBX_SINT32: return GL_FALSE; case MESA_FORMAT_R10G10B10A2_UNORM: return format == GL_RGBA && type == GL_UNSIGNED_INT_2_10_10_10_REV && !swapBytes; case MESA_FORMAT_G8R8_SNORM: return format == GL_RG && type == GL_BYTE && !littleEndian && !swapBytes; case MESA_FORMAT_G16R16_SNORM: return format == GL_RG && type == GL_SHORT && !littleEndian && !swapBytes; case MESA_FORMAT_B8G8R8X8_SRGB: return GL_FALSE; } return GL_FALSE; }