diff options
Diffstat (limited to 'mesalib/src/mesa/main/formats.c')
| -rw-r--r-- | mesalib/src/mesa/main/formats.c | 291 |
1 files changed, 280 insertions, 11 deletions
diff --git a/mesalib/src/mesa/main/formats.c b/mesalib/src/mesa/main/formats.c index 58c32e23b..958d6f245 100644 --- a/mesalib/src/mesa/main/formats.c +++ b/mesalib/src/mesa/main/formats.c @@ -28,7 +28,8 @@ #include "formats.h" #include "macros.h" #include "glformats.h" - +#include "c11/threads.h" +#include "util/hash_table.h" /** * Information about texture formats. @@ -71,6 +72,7 @@ struct gl_format_info GLubyte BytesPerBlock; uint8_t Swizzle[4]; + mesa_array_format ArrayFormat; }; #include "format_info.c" @@ -213,17 +215,87 @@ _mesa_get_format_datatype(mesa_format format) return info->DataType; } +static GLenum +get_base_format_for_array_format(mesa_array_format format) +{ + uint8_t swizzle[4]; + int num_channels; + + _mesa_array_format_get_swizzle(format, swizzle); + num_channels = _mesa_array_format_get_num_channels(format); + + switch (num_channels) { + case 4: + /* FIXME: RGBX formats have 4 channels, but their base format is GL_RGB. + * This is not really a problem for now because we only create array + * formats from GL format/type combinations, and these cannot specify + * RGBX formats. + */ + return GL_RGBA; + case 3: + return GL_RGB; + case 2: + if (swizzle[0] == 0 && + swizzle[1] == 0 && + swizzle[2] == 0 && + swizzle[3] == 1) + return GL_LUMINANCE_ALPHA; + if (swizzle[0] == 1 && + swizzle[1] == 1 && + swizzle[2] == 1 && + swizzle[3] == 0) + return GL_LUMINANCE_ALPHA; + if (swizzle[0] == 0 && + swizzle[1] == 1 && + swizzle[2] == 4 && + swizzle[3] == 5) + return GL_RG; + if (swizzle[0] == 1 && + swizzle[1] == 0 && + swizzle[2] == 4 && + swizzle[3] == 5) + return GL_RG; + break; + case 1: + if (swizzle[0] == 0 && + swizzle[1] == 0 && + swizzle[2] == 0 && + swizzle[3] == 5) + return GL_LUMINANCE; + if (swizzle[0] == 0 && + swizzle[1] == 0 && + swizzle[2] == 0 && + swizzle[3] == 0) + return GL_INTENSITY; + if (swizzle[0] <= MESA_FORMAT_SWIZZLE_W) + return GL_RED; + if (swizzle[1] <= MESA_FORMAT_SWIZZLE_W) + return GL_GREEN; + if (swizzle[2] <= MESA_FORMAT_SWIZZLE_W) + return GL_BLUE; + if (swizzle[3] <= MESA_FORMAT_SWIZZLE_W) + return GL_ALPHA; + break; + } + + unreachable("Unsupported format"); +} /** * 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. + * This functions accepts a mesa_format or a mesa_array_format. */ GLenum -_mesa_get_format_base_format(mesa_format format) +_mesa_get_format_base_format(uint32_t format) { - const struct gl_format_info *info = _mesa_get_format_info(format); - return info->BaseFormat; + if (!_mesa_format_is_mesa_array_format(format)) { + const struct gl_format_info *info = _mesa_get_format_info(format); + return info->BaseFormat; + } else { + return get_base_format_for_array_format(format); + } } @@ -269,6 +341,105 @@ _mesa_get_format_swizzle(mesa_format format, uint8_t swizzle_out[4]) memcpy(swizzle_out, info->Swizzle, sizeof(info->Swizzle)); } +mesa_array_format +_mesa_array_format_flip_channels(mesa_array_format format) +{ + int num_channels; + uint8_t swizzle[4]; + + num_channels = _mesa_array_format_get_num_channels(format); + _mesa_array_format_get_swizzle(format, swizzle); + + if (num_channels == 1) + return format; + + if (num_channels == 2) { + _mesa_array_format_set_swizzle(&format, swizzle[1], swizzle[0], + swizzle[2], swizzle[3]); + return format; + } + + if (num_channels == 4) { + _mesa_array_format_set_swizzle(&format, swizzle[3], swizzle[2], + swizzle[1], swizzle[0]); + return format; + } + + unreachable("Invalid array format"); +} + +uint32_t +_mesa_format_to_array_format(mesa_format format) +{ + const struct gl_format_info *info = _mesa_get_format_info(format); + if (_mesa_little_endian()) + return info->ArrayFormat; + else + return _mesa_array_format_flip_channels(info->ArrayFormat); +} + +static struct hash_table *format_array_format_table; +static once_flag format_array_format_table_exists = ONCE_FLAG_INIT; + +static bool +array_formats_equal(const void *a, const void *b) +{ + return (intptr_t)a == (intptr_t)b; +} + +static void +format_array_format_table_init() +{ + const struct gl_format_info *info; + mesa_array_format array_format; + unsigned f; + + format_array_format_table = _mesa_hash_table_create(NULL, NULL, + array_formats_equal); + + for (f = 1; f < MESA_FORMAT_COUNT; ++f) { + info = _mesa_get_format_info(f); + if (!info->ArrayFormat) + continue; + + if (_mesa_little_endian()) { + array_format = info->ArrayFormat; + } else { + array_format = _mesa_array_format_flip_channels(info->ArrayFormat); + } + + /* This can happen and does for some of the BGR formats. Let's take + * the first one in the list. + */ + if (_mesa_hash_table_search_pre_hashed(format_array_format_table, + array_format, + (void *)(intptr_t)array_format)) + continue; + + _mesa_hash_table_insert_pre_hashed(format_array_format_table, + array_format, + (void *)(intptr_t)array_format, + (void *)(intptr_t)f); + } +} + +mesa_format +_mesa_format_from_array_format(uint32_t array_format) +{ + struct hash_entry *entry; + + assert(_mesa_format_is_mesa_array_format(array_format)); + + call_once(&format_array_format_table_exists, format_array_format_table_init); + + entry = _mesa_hash_table_search_pre_hashed(format_array_format_table, + array_format, + (void *)(intptr_t)array_format); + if (entry) + return (intptr_t)entry->data; + else + return MESA_FORMAT_NONE; +} /** Is the given format a compressed format? */ GLboolean @@ -345,6 +516,25 @@ _mesa_is_format_integer(mesa_format format) return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT); } + +/** + * Return true if the given format is a color format. + */ +GLenum +_mesa_is_format_color_format(mesa_format format) +{ + const struct gl_format_info *info = _mesa_get_format_info(format); + switch (info->BaseFormat) { + case GL_DEPTH_COMPONENT: + case GL_STENCIL_INDEX: + case GL_DEPTH_STENCIL: + return false; + default: + return true; + } +} + + /** * Return color encoding for given format. * \return GL_LINEAR or GL_SRGB @@ -864,6 +1054,34 @@ _mesa_format_to_type_and_comps(mesa_format format, *comps = 1; return; + case MESA_FORMAT_R3G3B2_UNORM: + *datatype = GL_UNSIGNED_BYTE_2_3_3_REV; + *comps = 3; + return; + case MESA_FORMAT_A4B4G4R4_UNORM: + *datatype = GL_UNSIGNED_SHORT_4_4_4_4; + *comps = 4; + return; + + case MESA_FORMAT_R4G4B4A4_UNORM: + *datatype = GL_UNSIGNED_SHORT_4_4_4_4; + *comps = 4; + return; + case MESA_FORMAT_R5G5B5A1_UNORM: + *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV; + *comps = 4; + return; + case MESA_FORMAT_A2B10G10R10_UNORM: + case MESA_FORMAT_A2B10G10R10_UINT: + *datatype = GL_UNSIGNED_INT_10_10_10_2; + *comps = 4; + return; + case MESA_FORMAT_A2R10G10B10_UNORM: + case MESA_FORMAT_A2R10G10B10_UINT: + *datatype = GL_UNSIGNED_INT_10_10_10_2; + *comps = 4; + return; + case MESA_FORMAT_B2G3R3_UNORM: *datatype = GL_UNSIGNED_BYTE_3_3_2; *comps = 3; @@ -1265,6 +1483,7 @@ _mesa_format_to_type_and_comps(mesa_format format, return; case MESA_FORMAT_B10G10R10X2_UNORM: + case MESA_FORMAT_R10G10B10X2_UNORM: *datatype = GL_UNSIGNED_INT_2_10_10_10_REV; *comps = 4; return; @@ -1462,14 +1681,14 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format, 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; + return ((format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) || + (format == GL_BGR && type == GL_UNSIGNED_SHORT_5_6_5_REV)) && + !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; + return ((format == GL_BGR && type == GL_UNSIGNED_SHORT_5_6_5) || + (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5_REV)) && + !swapBytes; case MESA_FORMAT_B4G4R4A4_UNORM: return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && @@ -1487,7 +1706,8 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format, !swapBytes; case MESA_FORMAT_A1R5G5B5_UNORM: - return GL_FALSE; + return format == GL_BGRA && type == GL_UNSIGNED_SHORT_5_5_5_1 && + !swapBytes; case MESA_FORMAT_L4A4_UNORM: return GL_FALSE; @@ -1506,6 +1726,54 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format, case MESA_FORMAT_B2G3R3_UNORM: return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2; + case MESA_FORMAT_R3G3B2_UNORM: + return format == GL_RGB && type == GL_UNSIGNED_BYTE_2_3_3_REV; + + case MESA_FORMAT_A4B4G4R4_UNORM: + if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4 && !swapBytes) + return GL_TRUE; + + if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && swapBytes) + return GL_TRUE; + + if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && !swapBytes) + return GL_TRUE; + + if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4 && swapBytes) + return GL_TRUE; + + return GL_FALSE; + + case MESA_FORMAT_R4G4B4A4_UNORM: + if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4 && !swapBytes) + return GL_TRUE; + + if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && swapBytes) + return GL_TRUE; + + if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && !swapBytes) + return GL_TRUE; + + if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4 && swapBytes) + return GL_TRUE; + + return GL_FALSE; + + case MESA_FORMAT_R5G5B5A1_UNORM: + return format == GL_RGBA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV; + + case MESA_FORMAT_A2B10G10R10_UNORM: + return format == GL_RGBA && type == GL_UNSIGNED_INT_10_10_10_2; + + case MESA_FORMAT_A2B10G10R10_UINT: + return format == GL_RGBA_INTEGER_EXT && type == GL_UNSIGNED_INT_10_10_10_2; + + case MESA_FORMAT_A2R10G10B10_UNORM: + return format == GL_BGRA && type == GL_UNSIGNED_INT_10_10_10_2; + + case MESA_FORMAT_A2R10G10B10_UINT: + return format == GL_BGRA_INTEGER_EXT && type == GL_UNSIGNED_INT_10_10_10_2; + case MESA_FORMAT_A_UNORM8: return format == GL_ALPHA && type == GL_UNSIGNED_BYTE; case MESA_FORMAT_A_UNORM16: @@ -1867,6 +2135,7 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format, case MESA_FORMAT_RGBX_UINT8: case MESA_FORMAT_RGBX_SINT8: case MESA_FORMAT_B10G10R10X2_UNORM: + case MESA_FORMAT_R10G10B10X2_UNORM: case MESA_FORMAT_RGBX_UNORM16: case MESA_FORMAT_RGBX_SNORM16: case MESA_FORMAT_RGBX_FLOAT16: |