| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * Copyright (c) 2008-2009 VMware, Inc. |
| * Copyright (c) 2012 Intel Corporation |
| * |
| * 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 "context.h" |
| #include "glformats.h" |
| #include "formats.h" |
| #include "texcompress.h" |
| #include "enums.h" |
| |
| enum { |
| ZERO = 4, |
| ONE = 5 |
| }; |
| |
| enum { |
| IDX_LUMINANCE = 0, |
| IDX_ALPHA, |
| IDX_INTENSITY, |
| IDX_LUMINANCE_ALPHA, |
| IDX_RGB, |
| IDX_RGBA, |
| IDX_RED, |
| IDX_GREEN, |
| IDX_BLUE, |
| IDX_BGR, |
| IDX_BGRA, |
| IDX_ABGR, |
| IDX_RG, |
| MAX_IDX |
| }; |
| |
| #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO) |
| #define MAP2(x,y) MAP4(x, y, ZERO, ZERO) |
| #define MAP3(x,y,z) MAP4(x, y, z, ZERO) |
| #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE } |
| |
| static const struct { |
| GLubyte format_idx; |
| GLubyte to_rgba[6]; |
| GLubyte from_rgba[6]; |
| } mappings[MAX_IDX] = |
| { |
| { |
| IDX_LUMINANCE, |
| MAP4(0,0,0,ONE), |
| MAP1(0) |
| }, |
| |
| { |
| IDX_ALPHA, |
| MAP4(ZERO, ZERO, ZERO, 0), |
| MAP1(3) |
| }, |
| |
| { |
| IDX_INTENSITY, |
| MAP4(0, 0, 0, 0), |
| MAP1(0), |
| }, |
| |
| { |
| IDX_LUMINANCE_ALPHA, |
| MAP4(0,0,0,1), |
| MAP2(0,3) |
| }, |
| |
| { |
| IDX_RGB, |
| MAP4(0,1,2,ONE), |
| MAP3(0,1,2) |
| }, |
| |
| { |
| IDX_RGBA, |
| MAP4(0,1,2,3), |
| MAP4(0,1,2,3), |
| }, |
| |
| { |
| IDX_RED, |
| MAP4(0, ZERO, ZERO, ONE), |
| MAP1(0), |
| }, |
| |
| { |
| IDX_GREEN, |
| MAP4(ZERO, 0, ZERO, ONE), |
| MAP1(1), |
| }, |
| |
| { |
| IDX_BLUE, |
| MAP4(ZERO, ZERO, 0, ONE), |
| MAP1(2), |
| }, |
| |
| { |
| IDX_BGR, |
| MAP4(2,1,0,ONE), |
| MAP3(2,1,0) |
| }, |
| |
| { |
| IDX_BGRA, |
| MAP4(2,1,0,3), |
| MAP4(2,1,0,3) |
| }, |
| |
| { |
| IDX_ABGR, |
| MAP4(3,2,1,0), |
| MAP4(3,2,1,0) |
| }, |
| |
| { |
| IDX_RG, |
| MAP4(0, 1, ZERO, ONE), |
| MAP2(0, 1) |
| }, |
| }; |
| |
| /** |
| * Convert a GL image format enum to an IDX_* value (see above). |
| */ |
| static int |
| get_map_idx(GLenum value) |
| { |
| switch (value) { |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_INTEGER_EXT: |
| return IDX_LUMINANCE; |
| case GL_ALPHA: |
| case GL_ALPHA_INTEGER: |
| return IDX_ALPHA; |
| case GL_INTENSITY: |
| return IDX_INTENSITY; |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| return IDX_LUMINANCE_ALPHA; |
| case GL_RGB: |
| case GL_RGB_INTEGER: |
| return IDX_RGB; |
| case GL_RGBA: |
| case GL_RGBA_INTEGER: |
| return IDX_RGBA; |
| case GL_RED: |
| case GL_RED_INTEGER: |
| return IDX_RED; |
| case GL_GREEN: |
| return IDX_GREEN; |
| case GL_BLUE: |
| return IDX_BLUE; |
| case GL_BGR: |
| case GL_BGR_INTEGER: |
| return IDX_BGR; |
| case GL_BGRA: |
| case GL_BGRA_INTEGER: |
| return IDX_BGRA; |
| case GL_ABGR_EXT: |
| return IDX_ABGR; |
| case GL_RG: |
| case GL_RG_INTEGER: |
| return IDX_RG; |
| default: |
| _mesa_problem(NULL, "Unexpected inFormat %s", |
| _mesa_enum_to_string(value)); |
| return 0; |
| } |
| } |
| |
| /** |
| * When promoting texture formats (see below) we need to compute the |
| * mapping of dest components back to source components. |
| * This function does that. |
| * \param inFormat the incoming format of the texture |
| * \param outFormat the final texture format |
| * \return map[6] a full 6-component map |
| */ |
| void |
| _mesa_compute_component_mapping(GLenum inFormat, GLenum outFormat, GLubyte *map) |
| { |
| const int inFmt = get_map_idx(inFormat); |
| const int outFmt = get_map_idx(outFormat); |
| const GLubyte *in2rgba = mappings[inFmt].to_rgba; |
| const GLubyte *rgba2out = mappings[outFmt].from_rgba; |
| int i; |
| |
| for (i = 0; i < 4; i++) |
| map[i] = in2rgba[rgba2out[i]]; |
| |
| map[ZERO] = ZERO; |
| map[ONE] = ONE; |
| |
| #if 0 |
| printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n", |
| inFormat, _mesa_enum_to_string(inFormat), |
| outFormat, _mesa_enum_to_string(outFormat), |
| map[0], |
| map[1], |
| map[2], |
| map[3], |
| map[4], |
| map[5]); |
| #endif |
| } |
| |
| /** |
| * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise. |
| */ |
| GLboolean |
| _mesa_type_is_packed(GLenum type) |
| { |
| switch (type) { |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| case MESA_UNSIGNED_BYTE_4_4: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| case GL_UNSIGNED_SHORT_8_8_MESA: |
| case GL_UNSIGNED_SHORT_8_8_REV_MESA: |
| case GL_UNSIGNED_INT_24_8_EXT: |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| return GL_TRUE; |
| } |
| |
| return GL_FALSE; |
| } |
| |
| |
| /** |
| * Get the size of a GL data type. |
| * |
| * \param type GL data type. |
| * |
| * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1 |
| * if an invalid type enum. |
| */ |
| GLint |
| _mesa_sizeof_type(GLenum type) |
| { |
| switch (type) { |
| case GL_BITMAP: |
| return 0; |
| case GL_UNSIGNED_BYTE: |
| return sizeof(GLubyte); |
| case GL_BYTE: |
| return sizeof(GLbyte); |
| case GL_UNSIGNED_SHORT: |
| return sizeof(GLushort); |
| case GL_SHORT: |
| return sizeof(GLshort); |
| case GL_UNSIGNED_INT: |
| return sizeof(GLuint); |
| case GL_INT: |
| return sizeof(GLint); |
| case GL_FLOAT: |
| return sizeof(GLfloat); |
| case GL_DOUBLE: |
| return sizeof(GLdouble); |
| case GL_HALF_FLOAT_ARB: |
| case GL_HALF_FLOAT_OES: |
| return sizeof(GLhalfARB); |
| case GL_FIXED: |
| return sizeof(GLfixed); |
| default: |
| return -1; |
| } |
| } |
| |
| |
| /** |
| * Same as _mesa_sizeof_type() but also accepting the packed pixel |
| * format data types. |
| */ |
| GLint |
| _mesa_sizeof_packed_type(GLenum type) |
| { |
| switch (type) { |
| case GL_BITMAP: |
| return 0; |
| case GL_UNSIGNED_BYTE: |
| return sizeof(GLubyte); |
| case GL_BYTE: |
| return sizeof(GLbyte); |
| case GL_UNSIGNED_SHORT: |
| return sizeof(GLushort); |
| case GL_SHORT: |
| return sizeof(GLshort); |
| case GL_UNSIGNED_INT: |
| return sizeof(GLuint); |
| case GL_INT: |
| return sizeof(GLint); |
| case GL_HALF_FLOAT_ARB: |
| case GL_HALF_FLOAT_OES: |
| return sizeof(GLhalfARB); |
| case GL_FLOAT: |
| return sizeof(GLfloat); |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| case MESA_UNSIGNED_BYTE_4_4: |
| return sizeof(GLubyte); |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| case GL_UNSIGNED_SHORT_8_8_MESA: |
| case GL_UNSIGNED_SHORT_8_8_REV_MESA: |
| return sizeof(GLushort); |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| case GL_UNSIGNED_INT_24_8_EXT: |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| return sizeof(GLuint); |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| return 8; |
| default: |
| return -1; |
| } |
| } |
| |
| |
| /** |
| * Get the number of components in a pixel format. |
| * |
| * \param format pixel format. |
| * |
| * \return the number of components in the given format, or -1 if a bad format. |
| */ |
| GLint |
| _mesa_components_in_format(GLenum format) |
| { |
| switch (format) { |
| case GL_COLOR_INDEX: |
| case GL_STENCIL_INDEX: |
| case GL_DEPTH_COMPONENT: |
| case GL_RED: |
| case GL_RED_INTEGER_EXT: |
| case GL_GREEN: |
| case GL_GREEN_INTEGER_EXT: |
| case GL_BLUE: |
| case GL_BLUE_INTEGER_EXT: |
| case GL_ALPHA: |
| case GL_ALPHA_INTEGER_EXT: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_INTEGER_EXT: |
| case GL_INTENSITY: |
| return 1; |
| |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| case GL_RG: |
| case GL_YCBCR_MESA: |
| case GL_DEPTH_STENCIL_EXT: |
| case GL_RG_INTEGER: |
| return 2; |
| |
| case GL_RGB: |
| case GL_BGR: |
| case GL_RGB_INTEGER_EXT: |
| case GL_BGR_INTEGER_EXT: |
| return 3; |
| |
| case GL_RGBA: |
| case GL_BGRA: |
| case GL_ABGR_EXT: |
| case GL_RGBA_INTEGER_EXT: |
| case GL_BGRA_INTEGER_EXT: |
| return 4; |
| |
| default: |
| return -1; |
| } |
| } |
| |
| |
| /** |
| * Get the bytes per pixel of pixel format type pair. |
| * |
| * \param format pixel format. |
| * \param type pixel type. |
| * |
| * \return bytes per pixel, or -1 if a bad format or type was given. |
| */ |
| GLint |
| _mesa_bytes_per_pixel(GLenum format, GLenum type) |
| { |
| GLint comps = _mesa_components_in_format(format); |
| if (comps < 0) |
| return -1; |
| |
| switch (type) { |
| case GL_BITMAP: |
| return 0; /* special case */ |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| return comps * sizeof(GLubyte); |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| return comps * sizeof(GLshort); |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| return comps * sizeof(GLint); |
| case GL_FLOAT: |
| return comps * sizeof(GLfloat); |
| case GL_HALF_FLOAT_ARB: |
| case GL_HALF_FLOAT_OES: |
| return comps * sizeof(GLhalfARB); |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| if (format == GL_RGB || format == GL_BGR || |
| format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT) |
| return sizeof(GLubyte); |
| else |
| return -1; /* error */ |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| if (format == GL_RGB || format == GL_BGR || |
| format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT) |
| return sizeof(GLushort); |
| else |
| return -1; /* error */ |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT || |
| format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) |
| return sizeof(GLushort); |
| else |
| return -1; |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| if (format == GL_RGBA || format == GL_BGRA || |
| format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) |
| return sizeof(GLushort); |
| else |
| return -1; |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT || |
| format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT || |
| format == GL_RGB) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (format == GL_RGBA || format == GL_BGRA || |
| format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT || |
| format == GL_RGB) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_UNSIGNED_SHORT_8_8_MESA: |
| case GL_UNSIGNED_SHORT_8_8_REV_MESA: |
| if (format == GL_YCBCR_MESA) |
| return sizeof(GLushort); |
| else |
| return -1; |
| case GL_UNSIGNED_INT_24_8_EXT: |
| if (format == GL_DEPTH_COMPONENT || |
| format == GL_DEPTH_STENCIL_EXT) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| if (format == GL_RGB) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| if (format == GL_RGB) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| if (format == GL_DEPTH_STENCIL) |
| return 8; |
| else |
| return -1; |
| default: |
| return -1; |
| } |
| } |
| |
| |
| /** |
| * Get the number of bytes for a vertex attrib with the given number of |
| * components and type. |
| * |
| * \param comps number of components. |
| * \param type data type. |
| * |
| * \return bytes per attribute, or -1 if a bad comps/type combination was given. |
| */ |
| GLint |
| _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type) |
| { |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| return comps * sizeof(GLubyte); |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| return comps * sizeof(GLshort); |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| return comps * sizeof(GLint); |
| case GL_FLOAT: |
| return comps * sizeof(GLfloat); |
| case GL_HALF_FLOAT_ARB: |
| case GL_HALF_FLOAT_OES: |
| return comps * sizeof(GLhalfARB); |
| case GL_DOUBLE: |
| return comps * sizeof(GLdouble); |
| case GL_FIXED: |
| return comps * sizeof(GLfixed); |
| case GL_INT_2_10_10_10_REV: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (comps == 4) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| if (comps == 3) |
| return sizeof(GLuint); |
| else |
| return -1; |
| case GL_UNSIGNED_INT64_ARB: |
| return comps * 8; |
| default: |
| return -1; |
| } |
| } |
| |
| /** |
| * Test if the given format is unsized. |
| */ |
| GLboolean |
| _mesa_is_enum_format_unsized(GLenum format) |
| { |
| switch (format) { |
| case GL_RGBA: |
| case GL_BGRA: |
| case GL_ABGR_EXT: |
| case GL_RGB: |
| case GL_BGR: |
| case GL_RG: |
| case GL_RED: |
| case GL_GREEN: |
| case GL_BLUE: |
| case GL_ALPHA: |
| case GL_INTENSITY: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| |
| case GL_SRGB: |
| case GL_SRGB_ALPHA: |
| case GL_SLUMINANCE: |
| case GL_SLUMINANCE_ALPHA: |
| |
| case GL_RGBA_SNORM: |
| case GL_RGB_SNORM: |
| case GL_RG_SNORM: |
| case GL_RED_SNORM: |
| case GL_ALPHA_SNORM: |
| case GL_INTENSITY_SNORM: |
| case GL_LUMINANCE_SNORM: |
| case GL_LUMINANCE_ALPHA_SNORM: |
| |
| case GL_RED_INTEGER: |
| case GL_GREEN_INTEGER: |
| case GL_BLUE_INTEGER: |
| case GL_ALPHA_INTEGER: |
| case GL_RGB_INTEGER: |
| case GL_RGBA_INTEGER: |
| case GL_BGR_INTEGER: |
| case GL_BGRA_INTEGER: |
| case GL_RG_INTEGER: |
| case GL_LUMINANCE_INTEGER_EXT: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_STENCIL: |
| case GL_STENCIL_INDEX: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| /** |
| * Test if the given format is a UNORM (unsigned-normalized) format. |
| */ |
| GLboolean |
| _mesa_is_enum_format_unorm(GLenum format) |
| { |
| switch(format) { |
| case GL_RED: |
| case GL_GREEN: |
| case GL_BLUE: |
| case GL_ALPHA: |
| case GL_ALPHA4: |
| case GL_ALPHA8: |
| case GL_ALPHA12: |
| case GL_ALPHA16: |
| case 1: |
| case GL_LUMINANCE: |
| case GL_SLUMINANCE: |
| case GL_LUMINANCE4: |
| case GL_LUMINANCE8: |
| case GL_LUMINANCE12: |
| case GL_LUMINANCE16: |
| case 2: |
| case GL_LUMINANCE_ALPHA: |
| case GL_SLUMINANCE_ALPHA: |
| case GL_LUMINANCE4_ALPHA4: |
| case GL_LUMINANCE6_ALPHA2: |
| case GL_LUMINANCE8_ALPHA8: |
| case GL_LUMINANCE12_ALPHA4: |
| case GL_LUMINANCE12_ALPHA12: |
| case GL_LUMINANCE16_ALPHA16: |
| case GL_INTENSITY: |
| case GL_INTENSITY4: |
| case GL_INTENSITY8: |
| case GL_INTENSITY12: |
| case GL_INTENSITY16: |
| case GL_R8: |
| case GL_R16: |
| case GL_RG: |
| case GL_RG8: |
| case GL_RG16: |
| case 3: |
| case GL_RGB: |
| case GL_BGR: |
| case GL_SRGB: |
| case GL_R3_G3_B2: |
| case GL_RGB4: |
| case GL_RGB5: |
| case GL_RGB565: |
| case GL_RGB8: |
| case GL_RGB10: |
| case GL_RGB12: |
| case GL_RGB16: |
| case 4: |
| case GL_ABGR_EXT: |
| case GL_RGBA: |
| case GL_BGRA: |
| case GL_SRGB_ALPHA: |
| case GL_RGBA2: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_RGBA8: |
| case GL_RGB10_A2: |
| case GL_RGBA12: |
| case GL_RGBA16: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| /** |
| * Test if the given format is a SNORM (signed-normalized) format. |
| */ |
| GLboolean |
| _mesa_is_enum_format_snorm(GLenum format) |
| { |
| switch (format) { |
| /* signed, normalized texture formats */ |
| case GL_RED_SNORM: |
| case GL_R8_SNORM: |
| case GL_R16_SNORM: |
| case GL_RG_SNORM: |
| case GL_RG8_SNORM: |
| case GL_RG16_SNORM: |
| case GL_RGB_SNORM: |
| case GL_RGB8_SNORM: |
| case GL_RGB16_SNORM: |
| case GL_RGBA_SNORM: |
| case GL_RGBA8_SNORM: |
| case GL_RGBA16_SNORM: |
| case GL_ALPHA_SNORM: |
| case GL_ALPHA8_SNORM: |
| case GL_ALPHA16_SNORM: |
| case GL_LUMINANCE_SNORM: |
| case GL_LUMINANCE8_SNORM: |
| case GL_LUMINANCE16_SNORM: |
| case GL_LUMINANCE_ALPHA_SNORM: |
| case GL_LUMINANCE8_ALPHA8_SNORM: |
| case GL_LUMINANCE16_ALPHA16_SNORM: |
| case GL_INTENSITY_SNORM: |
| case GL_INTENSITY8_SNORM: |
| case GL_INTENSITY16_SNORM: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| /** |
| * Test if the given format is an integer (non-normalized) format. |
| */ |
| GLboolean |
| _mesa_is_enum_format_unsigned_int(GLenum format) |
| { |
| switch (format) { |
| /* specific integer formats */ |
| case GL_RGBA32UI_EXT: |
| case GL_RGB32UI_EXT: |
| case GL_RG32UI: |
| case GL_R32UI: |
| case GL_ALPHA32UI_EXT: |
| case GL_INTENSITY32UI_EXT: |
| case GL_LUMINANCE32UI_EXT: |
| case GL_LUMINANCE_ALPHA32UI_EXT: |
| case GL_RGBA16UI_EXT: |
| case GL_RGB16UI_EXT: |
| case GL_RG16UI: |
| case GL_R16UI: |
| case GL_ALPHA16UI_EXT: |
| case GL_INTENSITY16UI_EXT: |
| case GL_LUMINANCE16UI_EXT: |
| case GL_LUMINANCE_ALPHA16UI_EXT: |
| case GL_RGBA8UI_EXT: |
| case GL_RGB8UI_EXT: |
| case GL_RG8UI: |
| case GL_R8UI: |
| case GL_ALPHA8UI_EXT: |
| case GL_INTENSITY8UI_EXT: |
| case GL_LUMINANCE8UI_EXT: |
| case GL_LUMINANCE_ALPHA8UI_EXT: |
| case GL_RGB10_A2UI: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given format is an integer (non-normalized) format. |
| */ |
| GLboolean |
| _mesa_is_enum_format_signed_int(GLenum format) |
| { |
| switch (format) { |
| /* generic integer formats */ |
| case GL_RED_INTEGER_EXT: |
| case GL_GREEN_INTEGER_EXT: |
| case GL_BLUE_INTEGER_EXT: |
| case GL_ALPHA_INTEGER_EXT: |
| case GL_RGB_INTEGER_EXT: |
| case GL_RGBA_INTEGER_EXT: |
| case GL_BGR_INTEGER_EXT: |
| case GL_BGRA_INTEGER_EXT: |
| case GL_LUMINANCE_INTEGER_EXT: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| case GL_RG_INTEGER: |
| /* specific integer formats */ |
| case GL_RGBA32I_EXT: |
| case GL_RGB32I_EXT: |
| case GL_RG32I: |
| case GL_R32I: |
| case GL_ALPHA32I_EXT: |
| case GL_INTENSITY32I_EXT: |
| case GL_LUMINANCE32I_EXT: |
| case GL_LUMINANCE_ALPHA32I_EXT: |
| case GL_RGBA16I_EXT: |
| case GL_RGB16I_EXT: |
| case GL_RG16I: |
| case GL_R16I: |
| case GL_ALPHA16I_EXT: |
| case GL_INTENSITY16I_EXT: |
| case GL_LUMINANCE16I_EXT: |
| case GL_LUMINANCE_ALPHA16I_EXT: |
| case GL_RGBA8I_EXT: |
| case GL_RGB8I_EXT: |
| case GL_RG8I: |
| case GL_R8I: |
| case GL_ALPHA8I_EXT: |
| case GL_INTENSITY8I_EXT: |
| case GL_LUMINANCE8I_EXT: |
| case GL_LUMINANCE_ALPHA8I_EXT: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| /** |
| * Test if the given format is an ASTC 2D format. |
| */ |
| static bool |
| is_astc_2d_format(GLenum internalFormat) |
| { |
| switch (internalFormat) { |
| case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Test if the given format is an ASTC 3D format. |
| */ |
| static bool |
| is_astc_3d_format(GLenum internalFormat) |
| { |
| switch (internalFormat) { |
| case GL_COMPRESSED_RGBA_ASTC_3x3x3_OES: |
| case GL_COMPRESSED_RGBA_ASTC_4x3x3_OES: |
| case GL_COMPRESSED_RGBA_ASTC_4x4x3_OES: |
| case GL_COMPRESSED_RGBA_ASTC_4x4x4_OES: |
| case GL_COMPRESSED_RGBA_ASTC_5x4x4_OES: |
| case GL_COMPRESSED_RGBA_ASTC_5x5x4_OES: |
| case GL_COMPRESSED_RGBA_ASTC_5x5x5_OES: |
| case GL_COMPRESSED_RGBA_ASTC_6x5x5_OES: |
| case GL_COMPRESSED_RGBA_ASTC_6x6x5_OES: |
| case GL_COMPRESSED_RGBA_ASTC_6x6x6_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Test if the given format is an ASTC format. |
| */ |
| GLboolean |
| _mesa_is_astc_format(GLenum internalFormat) |
| { |
| return is_astc_2d_format(internalFormat) || |
| is_astc_3d_format(internalFormat); |
| } |
| |
| /** |
| * Test if the given format is an ETC2 format. |
| */ |
| GLboolean |
| _mesa_is_etc2_format(GLenum internalFormat) |
| { |
| switch (internalFormat) { |
| case GL_COMPRESSED_RGB8_ETC2: |
| case GL_COMPRESSED_SRGB8_ETC2: |
| case GL_COMPRESSED_RGBA8_ETC2_EAC: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: |
| case GL_COMPRESSED_R11_EAC: |
| case GL_COMPRESSED_RG11_EAC: |
| case GL_COMPRESSED_SIGNED_R11_EAC: |
| case GL_COMPRESSED_SIGNED_RG11_EAC: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Test if the given format is an integer (non-normalized) format. |
| */ |
| GLboolean |
| _mesa_is_enum_format_integer(GLenum format) |
| { |
| return _mesa_is_enum_format_unsigned_int(format) || |
| _mesa_is_enum_format_signed_int(format); |
| } |
| |
| |
| GLboolean |
| _mesa_is_type_unsigned(GLenum type) |
| { |
| switch (type) { |
| case GL_UNSIGNED_INT: |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| |
| case GL_UNSIGNED_SHORT: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| case GL_UNSIGNED_SHORT_8_8_MESA: |
| case GL_UNSIGNED_SHORT_8_8_REV_MESA: |
| |
| case GL_UNSIGNED_BYTE: |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| return GL_TRUE; |
| |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given image format is a color/RGBA format (i.e., not color |
| * index, depth, stencil, etc). |
| * \param format the image format value (may by an internal texture format) |
| * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise. |
| */ |
| GLboolean |
| _mesa_is_color_format(GLenum format) |
| { |
| switch (format) { |
| case GL_RED: |
| case GL_GREEN: |
| case GL_BLUE: |
| case GL_ALPHA: |
| case GL_ALPHA4: |
| case GL_ALPHA8: |
| case GL_ALPHA12: |
| case GL_ALPHA16: |
| case 1: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE4: |
| case GL_LUMINANCE8: |
| case GL_LUMINANCE12: |
| case GL_LUMINANCE16: |
| case 2: |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE4_ALPHA4: |
| case GL_LUMINANCE6_ALPHA2: |
| case GL_LUMINANCE8_ALPHA8: |
| case GL_LUMINANCE12_ALPHA4: |
| case GL_LUMINANCE12_ALPHA12: |
| case GL_LUMINANCE16_ALPHA16: |
| case GL_INTENSITY: |
| case GL_INTENSITY4: |
| case GL_INTENSITY8: |
| case GL_INTENSITY12: |
| case GL_INTENSITY16: |
| case GL_R8: |
| case GL_R16: |
| case GL_RG: |
| case GL_RG8: |
| case GL_RG16: |
| case 3: |
| case GL_RGB: |
| case GL_BGR: |
| case GL_R3_G3_B2: |
| case GL_RGB4: |
| case GL_RGB5: |
| case GL_RGB565: |
| case GL_RGB8: |
| case GL_RGB10: |
| case GL_RGB12: |
| case GL_RGB16: |
| case 4: |
| case GL_ABGR_EXT: |
| case GL_RGBA: |
| case GL_BGRA: |
| case GL_RGBA2: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_RGBA8: |
| case GL_RGB10_A2: |
| case GL_RGBA12: |
| case GL_RGBA16: |
| /* float texture formats */ |
| case GL_ALPHA16F_ARB: |
| case GL_ALPHA32F_ARB: |
| case GL_LUMINANCE16F_ARB: |
| case GL_LUMINANCE32F_ARB: |
| case GL_LUMINANCE_ALPHA16F_ARB: |
| case GL_LUMINANCE_ALPHA32F_ARB: |
| case GL_INTENSITY16F_ARB: |
| case GL_INTENSITY32F_ARB: |
| case GL_R16F: |
| case GL_R32F: |
| case GL_RG16F: |
| case GL_RG32F: |
| case GL_RGB16F_ARB: |
| case GL_RGB32F_ARB: |
| case GL_RGBA16F_ARB: |
| case GL_RGBA32F_ARB: |
| /* compressed formats */ |
| case GL_COMPRESSED_ALPHA: |
| case GL_COMPRESSED_LUMINANCE: |
| case GL_COMPRESSED_LUMINANCE_ALPHA: |
| case GL_COMPRESSED_INTENSITY: |
| case GL_COMPRESSED_RED: |
| case GL_COMPRESSED_RG: |
| case GL_COMPRESSED_RGB: |
| case GL_COMPRESSED_RGBA: |
| case GL_RGB_S3TC: |
| case GL_RGB4_S3TC: |
| case GL_RGBA_S3TC: |
| case GL_RGBA4_S3TC: |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: |
| case GL_COMPRESSED_RGB_FXT1_3DFX: |
| case GL_COMPRESSED_RGBA_FXT1_3DFX: |
| case GL_SRGB_EXT: |
| case GL_SRGB8_EXT: |
| case GL_SRGB_ALPHA_EXT: |
| case GL_SRGB8_ALPHA8_EXT: |
| case GL_SLUMINANCE_ALPHA_EXT: |
| case GL_SLUMINANCE8_ALPHA8_EXT: |
| case GL_SLUMINANCE_EXT: |
| case GL_SLUMINANCE8_EXT: |
| case GL_COMPRESSED_SRGB_EXT: |
| case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: |
| case GL_COMPRESSED_SLUMINANCE_EXT: |
| case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: |
| case GL_COMPRESSED_RED_RGTC1: |
| case GL_COMPRESSED_SIGNED_RED_RGTC1: |
| case GL_COMPRESSED_RG_RGTC2: |
| case GL_COMPRESSED_SIGNED_RG_RGTC2: |
| case GL_COMPRESSED_LUMINANCE_LATC1_EXT: |
| case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: |
| case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: |
| case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: |
| case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: |
| case GL_ETC1_RGB8_OES: |
| case GL_COMPRESSED_RGB8_ETC2: |
| case GL_COMPRESSED_SRGB8_ETC2: |
| case GL_COMPRESSED_RGBA8_ETC2_EAC: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: |
| case GL_COMPRESSED_R11_EAC: |
| case GL_COMPRESSED_RG11_EAC: |
| case GL_COMPRESSED_SIGNED_R11_EAC: |
| case GL_COMPRESSED_SIGNED_RG11_EAC: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| case GL_COMPRESSED_RGBA_BPTC_UNORM: |
| case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: |
| case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT: |
| case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT: |
| case GL_COMPRESSED_RGBA_ASTC_4x4_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_5x4_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_5x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_6x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_6x6_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_8x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_8x6_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_8x8_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x5_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x6_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x8_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_10x10_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_12x10_KHR: |
| case GL_COMPRESSED_RGBA_ASTC_12x12_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: |
| case GL_ATC_RGB_AMD: |
| case GL_ATC_RGBA_EXPLICIT_ALPHA_AMD: |
| case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD: |
| /* generic integer formats */ |
| case GL_RED_INTEGER_EXT: |
| case GL_GREEN_INTEGER_EXT: |
| case GL_BLUE_INTEGER_EXT: |
| case GL_ALPHA_INTEGER_EXT: |
| case GL_RGB_INTEGER_EXT: |
| case GL_RGBA_INTEGER_EXT: |
| case GL_BGR_INTEGER_EXT: |
| case GL_BGRA_INTEGER_EXT: |
| case GL_RG_INTEGER: |
| case GL_LUMINANCE_INTEGER_EXT: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| /* sized integer formats */ |
| case GL_RGBA32UI_EXT: |
| case GL_RGB32UI_EXT: |
| case GL_RG32UI: |
| case GL_R32UI: |
| case GL_ALPHA32UI_EXT: |
| case GL_INTENSITY32UI_EXT: |
| case GL_LUMINANCE32UI_EXT: |
| case GL_LUMINANCE_ALPHA32UI_EXT: |
| case GL_RGBA16UI_EXT: |
| case GL_RGB16UI_EXT: |
| case GL_RG16UI: |
| case GL_R16UI: |
| case GL_ALPHA16UI_EXT: |
| case GL_INTENSITY16UI_EXT: |
| case GL_LUMINANCE16UI_EXT: |
| case GL_LUMINANCE_ALPHA16UI_EXT: |
| case GL_RGBA8UI_EXT: |
| case GL_RGB8UI_EXT: |
| case GL_RG8UI: |
| case GL_R8UI: |
| case GL_ALPHA8UI_EXT: |
| case GL_INTENSITY8UI_EXT: |
| case GL_LUMINANCE8UI_EXT: |
| case GL_LUMINANCE_ALPHA8UI_EXT: |
| case GL_RGBA32I_EXT: |
| case GL_RGB32I_EXT: |
| case GL_RG32I: |
| case GL_R32I: |
| case GL_ALPHA32I_EXT: |
| case GL_INTENSITY32I_EXT: |
| case GL_LUMINANCE32I_EXT: |
| case GL_LUMINANCE_ALPHA32I_EXT: |
| case GL_RGBA16I_EXT: |
| case GL_RGB16I_EXT: |
| case GL_RG16I: |
| case GL_R16I: |
| case GL_ALPHA16I_EXT: |
| case GL_INTENSITY16I_EXT: |
| case GL_LUMINANCE16I_EXT: |
| case GL_LUMINANCE_ALPHA16I_EXT: |
| case GL_RGBA8I_EXT: |
| case GL_RGB8I_EXT: |
| case GL_RG8I: |
| case GL_R8I: |
| case GL_ALPHA8I_EXT: |
| case GL_INTENSITY8I_EXT: |
| case GL_LUMINANCE8I_EXT: |
| case GL_LUMINANCE_ALPHA8I_EXT: |
| /* signed, normalized texture formats */ |
| case GL_RED_SNORM: |
| case GL_R8_SNORM: |
| case GL_R16_SNORM: |
| case GL_RG_SNORM: |
| case GL_RG8_SNORM: |
| case GL_RG16_SNORM: |
| case GL_RGB_SNORM: |
| case GL_RGB8_SNORM: |
| case GL_RGB16_SNORM: |
| case GL_RGBA_SNORM: |
| case GL_RGBA8_SNORM: |
| case GL_RGBA16_SNORM: |
| case GL_ALPHA_SNORM: |
| case GL_ALPHA8_SNORM: |
| case GL_ALPHA16_SNORM: |
| case GL_LUMINANCE_SNORM: |
| case GL_LUMINANCE8_SNORM: |
| case GL_LUMINANCE16_SNORM: |
| case GL_LUMINANCE_ALPHA_SNORM: |
| case GL_LUMINANCE8_ALPHA8_SNORM: |
| case GL_LUMINANCE16_ALPHA16_SNORM: |
| case GL_INTENSITY_SNORM: |
| case GL_INTENSITY8_SNORM: |
| case GL_INTENSITY16_SNORM: |
| case GL_RGB9_E5: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB10_A2UI: |
| return GL_TRUE; |
| case GL_YCBCR_MESA: /* not considered to be RGB */ |
| /* fall-through */ |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given image format is a depth component format. |
| */ |
| GLboolean |
| _mesa_is_depth_format(GLenum format) |
| { |
| switch (format) { |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT24: |
| case GL_DEPTH_COMPONENT32: |
| case GL_DEPTH_COMPONENT32F: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given image format is a stencil format. |
| */ |
| GLboolean |
| _mesa_is_stencil_format(GLenum format) |
| { |
| switch (format) { |
| case GL_STENCIL_INDEX: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given image format is a YCbCr format. |
| */ |
| GLboolean |
| _mesa_is_ycbcr_format(GLenum format) |
| { |
| switch (format) { |
| case GL_YCBCR_MESA: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given image format is a depth+stencil format. |
| */ |
| GLboolean |
| _mesa_is_depthstencil_format(GLenum format) |
| { |
| switch (format) { |
| case GL_DEPTH24_STENCIL8_EXT: |
| case GL_DEPTH_STENCIL_EXT: |
| case GL_DEPTH32F_STENCIL8: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| |
| /** |
| * Test if the given image format is a depth or stencil format. |
| */ |
| GLboolean |
| _mesa_is_depth_or_stencil_format(GLenum format) |
| { |
| switch (format) { |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT24: |
| case GL_DEPTH_COMPONENT32: |
| case GL_STENCIL_INDEX: |
| case GL_STENCIL_INDEX1_EXT: |
| case GL_STENCIL_INDEX4_EXT: |
| case GL_STENCIL_INDEX8_EXT: |
| case GL_STENCIL_INDEX16_EXT: |
| case GL_DEPTH_STENCIL_EXT: |
| case GL_DEPTH24_STENCIL8_EXT: |
| case GL_DEPTH_COMPONENT32F: |
| case GL_DEPTH32F_STENCIL8: |
| return GL_TRUE; |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| /** |
| * Test if the given image format has a floating-point depth component. |
| */ |
| GLboolean |
| _mesa_has_depth_float_channel(GLenum internalFormat) |
| { |
| return internalFormat == GL_DEPTH32F_STENCIL8 || |
| internalFormat == GL_DEPTH_COMPONENT32F; |
| } |
| |
| /** |
| * Test if an image format is a supported compressed format. |
| * \param format the internal format token provided by the user. |
| * \return GL_TRUE if compressed, GL_FALSE if uncompressed |
| */ |
| GLboolean |
| _mesa_is_compressed_format(const struct gl_context *ctx, GLenum format) |
| { |
| mesa_format m_format = _mesa_glenum_to_compressed_format(format); |
| |
| /* Some formats in this switch have an equivalent mesa_format_layout |
| * to the compressed formats in the layout switch below and thus |
| * must be handled first. |
| */ |
| switch (format) { |
| case GL_RGB_S3TC: |
| case GL_RGB4_S3TC: |
| case GL_RGBA_S3TC: |
| case GL_RGBA4_S3TC: |
| return _mesa_has_S3_s3tc(ctx); |
| case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: |
| return _mesa_has_ATI_texture_compression_3dc(ctx); |
| case GL_PALETTE4_RGB8_OES: |
| case GL_PALETTE4_RGBA8_OES: |
| case GL_PALETTE4_R5_G6_B5_OES: |
| case GL_PALETTE4_RGBA4_OES: |
| case GL_PALETTE4_RGB5_A1_OES: |
| case GL_PALETTE8_RGB8_OES: |
| case GL_PALETTE8_RGBA8_OES: |
| case GL_PALETTE8_R5_G6_B5_OES: |
| case GL_PALETTE8_RGBA4_OES: |
| case GL_PALETTE8_RGB5_A1_OES: |
| return ctx->API == API_OPENGLES; |
| } |
| |
| switch (_mesa_get_format_layout(m_format)) { |
| case MESA_FORMAT_LAYOUT_S3TC: |
| if (!_mesa_is_format_srgb(m_format)) { |
| return _mesa_has_EXT_texture_compression_s3tc(ctx); |
| } else { |
| return (_mesa_has_EXT_texture_sRGB(ctx) || |
| _mesa_has_EXT_texture_compression_s3tc_srgb(ctx)) && |
| _mesa_has_EXT_texture_compression_s3tc(ctx); |
| } |
| case MESA_FORMAT_LAYOUT_FXT1: |
| return _mesa_has_3DFX_texture_compression_FXT1(ctx); |
| case MESA_FORMAT_LAYOUT_RGTC: |
| return _mesa_has_ARB_texture_compression_rgtc(ctx) || |
| _mesa_has_EXT_texture_compression_rgtc(ctx); |
| case MESA_FORMAT_LAYOUT_LATC: |
| return _mesa_has_EXT_texture_compression_latc(ctx); |
| case MESA_FORMAT_LAYOUT_ETC1: |
| return _mesa_has_OES_compressed_ETC1_RGB8_texture(ctx); |
| case MESA_FORMAT_LAYOUT_ETC2: |
| return _mesa_is_gles3(ctx) || _mesa_has_ARB_ES3_compatibility(ctx); |
| case MESA_FORMAT_LAYOUT_BPTC: |
| return _mesa_has_ARB_texture_compression_bptc(ctx) || |
| _mesa_has_EXT_texture_compression_bptc(ctx); |
| case MESA_FORMAT_LAYOUT_ASTC: |
| return _mesa_has_KHR_texture_compression_astc_ldr(ctx); |
| case MESA_FORMAT_LAYOUT_ATC: |
| return _mesa_has_AMD_compressed_ATC_texture(ctx); |
| default: |
| return GL_FALSE; |
| } |
| } |
| |
| /** |
| * Test if the given format represents an sRGB format. |
| * \param format the GL format (can be an internal format) |
| * \return GL_TRUE if format is sRGB, GL_FALSE otherwise |
| */ |
| GLboolean |
| _mesa_is_srgb_format(GLenum format) |
| { |
| switch (format) { |
| case GL_SRGB: |
| case GL_SRGB8: |
| case GL_SRGB_ALPHA: |
| case GL_SRGB8_ALPHA8: |
| case GL_COMPRESSED_SRGB: |
| case GL_COMPRESSED_SRGB_ALPHA: |
| case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: |
| case GL_COMPRESSED_SRGB8_ETC2: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR: |
| return GL_TRUE; |
| default: |
| break; |
| } |
| |
| return GL_FALSE; |
| } |
| |
| /** |
| * Convert various unpack formats to the corresponding base format. |
| */ |
| GLenum |
| _mesa_unpack_format_to_base_format(GLenum format) |
| { |
| switch(format) { |
| case GL_RED_INTEGER: |
| return GL_RED; |
| case GL_GREEN_INTEGER: |
| return GL_GREEN; |
| case GL_BLUE_INTEGER: |
| return GL_BLUE; |
| case GL_ALPHA_INTEGER: |
| return GL_ALPHA; |
| case GL_RG_INTEGER: |
| return GL_RG; |
| case GL_RGB_INTEGER: |
| return GL_RGB; |
| case GL_RGBA_INTEGER: |
| return GL_RGBA; |
| case GL_BGR_INTEGER: |
| return GL_BGR; |
| case GL_BGRA_INTEGER: |
| return GL_BGRA; |
| case GL_LUMINANCE_INTEGER_EXT: |
| return GL_LUMINANCE; |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| return GL_LUMINANCE_ALPHA; |
| case GL_RED: |
| case GL_GREEN: |
| case GL_BLUE: |
| case GL_RG: |
| case GL_RGB: |
| case GL_RGBA: |
| case GL_BGR: |
| case GL_BGRA: |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| default: |
| return format; |
| } |
| } |
| |
| /** |
| * Convert various base formats to the corresponding integer format. |
| */ |
| GLenum |
| _mesa_base_format_to_integer_format(GLenum format) |
| { |
| switch(format) { |
| case GL_RED: |
| return GL_RED_INTEGER; |
| case GL_GREEN: |
| return GL_GREEN_INTEGER; |
| case GL_BLUE: |
| return GL_BLUE_INTEGER; |
| case GL_RG: |
| return GL_RG_INTEGER; |
| case GL_RGB: |
| return GL_RGB_INTEGER; |
| case GL_RGBA: |
| return GL_RGBA_INTEGER; |
| case GL_BGR: |
| return GL_BGR_INTEGER; |
| case GL_BGRA: |
| return GL_BGRA_INTEGER; |
| case GL_ALPHA: |
| return GL_ALPHA_INTEGER; |
| case GL_LUMINANCE: |
| return GL_LUMINANCE_INTEGER_EXT; |
| case GL_LUMINANCE_ALPHA: |
| return GL_LUMINANCE_ALPHA_INTEGER_EXT; |
| } |
| |
| return format; |
| } |
| |
| |
| /** |
| * Does the given base texture/renderbuffer format have the channel |
| * named by 'pname'? |
| */ |
| GLboolean |
| _mesa_base_format_has_channel(GLenum base_format, GLenum pname) |
| { |
| switch (pname) { |
| case GL_TEXTURE_RED_SIZE: |
| case GL_TEXTURE_RED_TYPE: |
| case GL_RENDERBUFFER_RED_SIZE_EXT: |
| case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE: |
| case GL_INTERNALFORMAT_RED_SIZE: |
| case GL_INTERNALFORMAT_RED_TYPE: |
| if (base_format == GL_RED || |
| base_format == GL_RG || |
| base_format == GL_RGB || |
| base_format == GL_RGBA) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_TEXTURE_GREEN_SIZE: |
| case GL_TEXTURE_GREEN_TYPE: |
| case GL_RENDERBUFFER_GREEN_SIZE_EXT: |
| case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE: |
| case GL_INTERNALFORMAT_GREEN_SIZE: |
| case GL_INTERNALFORMAT_GREEN_TYPE: |
| if (base_format == GL_RG || |
| base_format == GL_RGB || |
| base_format == GL_RGBA) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_TEXTURE_BLUE_SIZE: |
| case GL_TEXTURE_BLUE_TYPE: |
| case GL_RENDERBUFFER_BLUE_SIZE_EXT: |
| case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE: |
| case GL_INTERNALFORMAT_BLUE_SIZE: |
| case GL_INTERNALFORMAT_BLUE_TYPE: |
| if (base_format == GL_RGB || |
| base_format == GL_RGBA) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_TEXTURE_ALPHA_SIZE: |
| case GL_TEXTURE_ALPHA_TYPE: |
| case GL_RENDERBUFFER_ALPHA_SIZE_EXT: |
| case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE: |
| case GL_INTERNALFORMAT_ALPHA_SIZE: |
| case GL_INTERNALFORMAT_ALPHA_TYPE: |
| if (base_format == GL_RGBA || |
| base_format == GL_ALPHA || |
| base_format == GL_LUMINANCE_ALPHA) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_TEXTURE_LUMINANCE_SIZE: |
| case GL_TEXTURE_LUMINANCE_TYPE: |
| if (base_format == GL_LUMINANCE || |
| base_format == GL_LUMINANCE_ALPHA) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_TEXTURE_INTENSITY_SIZE: |
| case GL_TEXTURE_INTENSITY_TYPE: |
| if (base_format == GL_INTENSITY) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_TEXTURE_DEPTH_SIZE: |
| case GL_TEXTURE_DEPTH_TYPE: |
| case GL_RENDERBUFFER_DEPTH_SIZE_EXT: |
| case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE: |
| case GL_INTERNALFORMAT_DEPTH_SIZE: |
| case GL_INTERNALFORMAT_DEPTH_TYPE: |
| if (base_format == GL_DEPTH_STENCIL || |
| base_format == GL_DEPTH_COMPONENT) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| case GL_RENDERBUFFER_STENCIL_SIZE_EXT: |
| case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE: |
| case GL_INTERNALFORMAT_STENCIL_SIZE: |
| case GL_INTERNALFORMAT_STENCIL_TYPE: |
| if (base_format == GL_DEPTH_STENCIL || |
| base_format == GL_STENCIL_INDEX) { |
| return GL_TRUE; |
| } |
| return GL_FALSE; |
| default: |
| _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n", |
| __func__, pname); |
| return GL_FALSE; |
| } |
| |
| return GL_FALSE; |
| } |
| |
| |
| /** |
| * If format is a generic compressed format, return the corresponding |
| * non-compressed format. For other formats, return the format as-is. |
| */ |
| GLenum |
| _mesa_generic_compressed_format_to_uncompressed_format(GLenum format) |
| { |
| switch (format) { |
| case GL_COMPRESSED_RED: |
| return GL_RED; |
| case GL_COMPRESSED_RG: |
| return GL_RG; |
| case GL_COMPRESSED_RGB: |
| return GL_RGB; |
| case GL_COMPRESSED_RGBA: |
| return GL_RGBA; |
| case GL_COMPRESSED_ALPHA: |
| return GL_ALPHA; |
| case GL_COMPRESSED_LUMINANCE: |
| return GL_LUMINANCE; |
| case GL_COMPRESSED_LUMINANCE_ALPHA: |
| return GL_LUMINANCE_ALPHA; |
| case GL_COMPRESSED_INTENSITY: |
| return GL_INTENSITY; |
| /* sRGB formats */ |
| case GL_COMPRESSED_SRGB: |
| return GL_SRGB; |
| case GL_COMPRESSED_SRGB_ALPHA: |
| return GL_SRGB_ALPHA; |
| case GL_COMPRESSED_SLUMINANCE: |
| return GL_SLUMINANCE; |
| case GL_COMPRESSED_SLUMINANCE_ALPHA: |
| return GL_SLUMINANCE_ALPHA; |
| default: |
| return format; |
| } |
| } |
| |
| |
| /** |
| * Return the equivalent non-generic internal format. |
| * This is useful for comparing whether two internal formats are equivalent. |
| */ |
| GLenum |
| _mesa_get_nongeneric_internalformat(GLenum format) |
| { |
| switch (format) { |
| /* GL 1.1 formats. */ |
| case 4: |
| case GL_RGBA: |
| return GL_RGBA8; |
| case 3: |
| case GL_RGB: |
| return GL_RGB8; |
| case 2: |
| case GL_LUMINANCE_ALPHA: |
| return GL_LUMINANCE8_ALPHA8; |
| case 1: |
| case GL_LUMINANCE: |
| return GL_LUMINANCE8; |
| case GL_ALPHA: |
| return GL_ALPHA8; |
| case GL_INTENSITY: |
| return GL_INTENSITY8; |
| |
| /* GL_ARB_texture_rg */ |
| case GL_RED: |
| return GL_R8; |
| case GL_RG: |
| return GL_RG8; |
| |
| /* GL_EXT_texture_sRGB */ |
| case GL_SRGB: |
| return GL_SRGB8; |
| case GL_SRGB_ALPHA: |
| return GL_SRGB8_ALPHA8; |
| case GL_SLUMINANCE: |
| return GL_SLUMINANCE8; |
| case GL_SLUMINANCE_ALPHA: |
| return GL_SLUMINANCE8_ALPHA8; |
| |
| /* GL_EXT_texture_snorm */ |
| case GL_RGBA_SNORM: |
| return GL_RGBA8_SNORM; |
| case GL_RGB_SNORM: |
| return GL_RGB8_SNORM; |
| case GL_RG_SNORM: |
| return GL_RG8_SNORM; |
| case GL_RED_SNORM: |
| return GL_R8_SNORM; |
| case GL_LUMINANCE_ALPHA_SNORM: |
| return GL_LUMINANCE8_ALPHA8_SNORM; |
| case GL_LUMINANCE_SNORM: |
| return GL_LUMINANCE8_SNORM; |
| case GL_ALPHA_SNORM: |
| return GL_ALPHA8_SNORM; |
| case GL_INTENSITY_SNORM: |
| return GL_INTENSITY8_SNORM; |
| |
| default: |
| return format; |
| } |
| } |
| |
| |
| /** |
| * Convert an sRGB internal format to linear. |
| */ |
| GLenum |
| _mesa_get_linear_internalformat(GLenum format) |
| { |
| switch (format) { |
| case GL_SRGB: |
| return GL_RGB; |
| case GL_SRGB_ALPHA: |
| return GL_RGBA; |
| case GL_SRGB8: |
| return GL_RGB8; |
| case GL_SRGB8_ALPHA8: |
| return GL_RGBA8; |
| case GL_SLUMINANCE8: |
| return GL_LUMINANCE8; |
| case GL_SLUMINANCE: |
| return GL_LUMINANCE; |
| case GL_SLUMINANCE_ALPHA: |
| return GL_LUMINANCE_ALPHA; |
| case GL_SLUMINANCE8_ALPHA8: |
| return GL_LUMINANCE8_ALPHA8; |
| default: |
| return format; |
| } |
| } |
| |
| |
| /** |
| * Do error checking of format/type combinations for glReadPixels, |
| * glDrawPixels and glTex[Sub]Image. Note that depending on the format |
| * and type values, we may either generate GL_INVALID_OPERATION or |
| * GL_INVALID_ENUM. |
| * |
| * \param format pixel format. |
| * \param type pixel type. |
| * |
| * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR |
| */ |
| GLenum |
| _mesa_error_check_format_and_type(const struct gl_context *ctx, |
| GLenum format, GLenum type) |
| { |
| /* From OpenGL 3.3 spec, page 220: |
| * "If the format is DEPTH_STENCIL, then values are taken from |
| * both the depth buffer and the stencil buffer. If there is no |
| * depth buffer or if there is no stencil buffer, then the error |
| * INVALID_OPERATION occurs. If the type parameter is not |
| * UNSIGNED_INT_24_8 or FLOAT_32_UNSIGNED_INT_24_8_REV, then the |
| * error INVALID_ENUM occurs." |
| * |
| * OpenGL ES still generates GL_INVALID_OPERATION because glReadPixels |
| * cannot be used to read depth or stencil in that API. |
| */ |
| if (_mesa_is_desktop_gl(ctx) && format == GL_DEPTH_STENCIL |
| && type != GL_UNSIGNED_INT_24_8 |
| && type != GL_FLOAT_32_UNSIGNED_INT_24_8_REV) |
| return GL_INVALID_ENUM; |
| |
| /* special type-based checks (see glReadPixels, glDrawPixels error lists) */ |
| switch (type) { |
| case GL_BITMAP: |
| if (format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX) { |
| return GL_INVALID_ENUM; |
| } |
| break; |
| |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| if (format == GL_RGB) { |
| break; /* OK */ |
| } |
| if (format == GL_RGB_INTEGER_EXT && |
| _mesa_has_texture_rgb10_a2ui(ctx)) { |
| break; /* OK */ |
| } |
| return GL_INVALID_OPERATION; |
| |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| if (format == GL_RGBA || |
| format == GL_BGRA || |
| format == GL_ABGR_EXT) { |
| break; /* OK */ |
| } |
| if ((format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) && |
| _mesa_has_texture_rgb10_a2ui(ctx)) { |
| break; /* OK */ |
| } |
| return GL_INVALID_OPERATION; |
| |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (format == GL_RGBA || |
| format == GL_BGRA) { |
| break; /* OK */ |
| } |
| if ((format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) && |
| _mesa_has_texture_rgb10_a2ui(ctx)) { |
| break; /* OK */ |
| } |
| if (type == GL_UNSIGNED_INT_2_10_10_10_REV && format == GL_RGB && |
| ctx->API == API_OPENGLES2) { |
| break; /* OK by GL_EXT_texture_type_2_10_10_10_REV */ |
| } |
| return GL_INVALID_OPERATION; |
| |
| case GL_UNSIGNED_INT_24_8: |
| /* Depth buffer OK to read in OpenGL ES (NV_read_depth). */ |
| if (ctx->API == API_OPENGLES2 && format == GL_DEPTH_COMPONENT) |
| return GL_NO_ERROR; |
| |
| if (format != GL_DEPTH_STENCIL) { |
| return GL_INVALID_OPERATION; |
| } |
| return GL_NO_ERROR; |
| |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| if (!_mesa_has_float_depth_buffer(ctx)) { |
| return GL_INVALID_ENUM; |
| } |
| if (format != GL_DEPTH_STENCIL) { |
| return GL_INVALID_OPERATION; |
| } |
| return GL_NO_ERROR; |
| |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| if (!_mesa_has_packed_float(ctx)) { |
| return GL_INVALID_ENUM; |
| } |
| if (format != GL_RGB) { |
| return GL_INVALID_OPERATION; |
| } |
| return GL_NO_ERROR; |
| |
| case GL_HALF_FLOAT_OES: |
| switch (format) { |
| case GL_RGBA: |
| case GL_RGB: |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE: |
| case GL_ALPHA: |
| return GL_NO_ERROR; |
| case GL_RG: |
| case GL_RED: |
| if (_mesa_has_rg_textures(ctx)) |
| return GL_NO_ERROR; |
| /* fallthrough */ |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| |
| default: |
| ; /* fall-through */ |
| } |
| |
| /* now, for each format, check the type for compatibility */ |
| switch (format) { |
| case GL_COLOR_INDEX: |
| case GL_STENCIL_INDEX: |
| switch (type) { |
| case GL_BITMAP: |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_RED: |
| case GL_GREEN: |
| case GL_BLUE: |
| case GL_ALPHA: |
| #if 0 /* not legal! see table 3.6 of the 1.5 spec */ |
| case GL_INTENSITY: |
| #endif |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| case GL_DEPTH_COMPONENT: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_RG: |
| if (!_mesa_has_rg_textures(ctx)) |
| return GL_INVALID_ENUM; |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_RGB: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| /* OK by GL_EXT_texture_type_2_10_10_10_REV */ |
| return (ctx->API == API_OPENGLES2) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| return _mesa_has_texture_shared_exponent(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| return _mesa_has_packed_float(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_BGR: |
| switch (type) { |
| /* NOTE: no packed types are supported with BGR. That's |
| * intentional, according to the GL spec. |
| */ |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_RGBA: |
| case GL_BGRA: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_ABGR_EXT: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| case GL_FLOAT: |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| case GL_HALF_FLOAT: |
| return GL_NO_ERROR; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_YCBCR_MESA: |
| if (!_mesa_has_MESA_ycbcr_texture(ctx)) |
| return GL_INVALID_ENUM; |
| if (type == GL_UNSIGNED_SHORT_8_8_MESA || |
| type == GL_UNSIGNED_SHORT_8_8_REV_MESA) |
| return GL_NO_ERROR; |
| else |
| return GL_INVALID_OPERATION; |
| |
| case GL_DEPTH_STENCIL: |
| if (type == GL_UNSIGNED_INT_24_8) |
| return GL_NO_ERROR; |
| else if (_mesa_has_float_depth_buffer(ctx) && |
| type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV) |
| return GL_NO_ERROR; |
| else |
| return GL_INVALID_ENUM; |
| |
| /* integer-valued formats */ |
| case GL_RED_INTEGER_EXT: |
| case GL_GREEN_INTEGER_EXT: |
| case GL_BLUE_INTEGER_EXT: |
| case GL_ALPHA_INTEGER_EXT: |
| case GL_RG_INTEGER: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| return _mesa_has_integer_textures(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_RGB_INTEGER_EXT: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| return _mesa_has_integer_textures(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| case GL_UNSIGNED_BYTE_3_3_2: |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| case GL_UNSIGNED_SHORT_5_6_5: |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| return _mesa_has_texture_rgb10_a2ui(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_BGR_INTEGER_EXT: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| /* NOTE: no packed formats w/ BGR format */ |
| return _mesa_has_integer_textures(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_RGBA_INTEGER_EXT: |
| case GL_BGRA_INTEGER_EXT: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| return _mesa_has_integer_textures(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| case GL_UNSIGNED_INT_8_8_8_8: |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| case GL_UNSIGNED_INT_10_10_10_2: |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| return _mesa_has_texture_rgb10_a2ui(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| case GL_LUMINANCE_INTEGER_EXT: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| switch (type) { |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| case GL_SHORT: |
| case GL_UNSIGNED_SHORT: |
| case GL_INT: |
| case GL_UNSIGNED_INT: |
| return _mesa_has_integer_textures(ctx) |
| ? GL_NO_ERROR : GL_INVALID_ENUM; |
| default: |
| return GL_INVALID_ENUM; |
| } |
| |
| default: |
| return GL_INVALID_ENUM; |
| } |
| return GL_NO_ERROR; |
| } |
| |
| |
| /** |
| * Do error checking of format/type combinations for OpenGL ES glReadPixels |
| * and glTex[Sub]Image. |
| * \return error code, or GL_NO_ERROR. |
| */ |
| GLenum |
| _mesa_es_error_check_format_and_type(const struct gl_context *ctx, |
| GLenum format, GLenum type, |
| unsigned dimensions) |
| { |
| GLboolean type_valid = GL_TRUE; |
| |
| switch (format) { |
| case GL_RED: |
| case GL_RG: |
| if (!_mesa_has_rg_textures(ctx)) |
| return GL_INVALID_VALUE; |
| /* fallthrough */ |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| type_valid = (type == GL_UNSIGNED_BYTE |
| || type == GL_FLOAT |
| || type == GL_HALF_FLOAT_OES); |
| break; |
| |
| case GL_RGB: |
| type_valid = (type == GL_UNSIGNED_BYTE |
| || type == GL_UNSIGNED_SHORT_5_6_5 |
| || type == GL_FLOAT |
| || type == GL_HALF_FLOAT_OES); |
| break; |
| |
| case GL_RGBA: |
| type_valid = (type == GL_UNSIGNED_BYTE |
| || type == GL_UNSIGNED_SHORT_4_4_4_4 |
| || type == GL_UNSIGNED_SHORT_5_5_5_1 |
| || type == GL_FLOAT |
| || type == GL_HALF_FLOAT_OES |
| || (_mesa_has_texture_type_2_10_10_10_REV(ctx) && |
| type == GL_UNSIGNED_INT_2_10_10_10_REV)); |
| break; |
| |
| case GL_DEPTH_COMPONENT: |
| /* This format is filtered against invalid dimensionalities elsewhere. |
| */ |
| type_valid = (type == GL_UNSIGNED_SHORT |
| || type == GL_UNSIGNED_INT); |
| break; |
| |
| case GL_DEPTH_STENCIL: |
| /* This format is filtered against invalid dimensionalities elsewhere. |
| */ |
| type_valid = (type == GL_UNSIGNED_INT_24_8); |
| break; |
| |
| case GL_BGRA_EXT: |
| type_valid = (type == GL_UNSIGNED_BYTE); |
| |
| /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but |
| * the format does not appear to be allowed for 3D textures in OpenGL |
| * ES. |
| */ |
| if (dimensions != 2) |
| return GL_INVALID_VALUE; |
| |
| break; |
| |
| default: |
| return GL_INVALID_VALUE; |
| } |
| |
| return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION; |
| } |
| |
| /** |
| * Return the simple base format for a given internal texture format. |
| * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. |
| * |
| * \param ctx GL context. |
| * \param internalFormat the internal texture format token or 1, 2, 3, or 4. |
| * |
| * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, |
| * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. |
| * |
| * This is the format which is used during texture application (i.e. the |
| * texture format and env mode determine the arithmetic used. |
| */ |
| GLint |
| _mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat) |
| { |
| switch (internalFormat) { |
| case GL_ALPHA: |
| case GL_ALPHA4: |
| case GL_ALPHA8: |
| case GL_ALPHA12: |
| case GL_ALPHA16: |
| return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1; |
| case 1: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE4: |
| case GL_LUMINANCE8: |
| case GL_LUMINANCE12: |
| case GL_LUMINANCE16: |
| return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE : -1; |
| case 2: |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE4_ALPHA4: |
| case GL_LUMINANCE6_ALPHA2: |
| case GL_LUMINANCE8_ALPHA8: |
| case GL_LUMINANCE12_ALPHA4: |
| case GL_LUMINANCE12_ALPHA12: |
| case GL_LUMINANCE16_ALPHA16: |
| return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE_ALPHA : -1; |
| case GL_INTENSITY: |
| case GL_INTENSITY4: |
| case GL_INTENSITY8: |
| case GL_INTENSITY12: |
| case GL_INTENSITY16: |
| return (ctx->API != API_OPENGL_CORE) ? GL_INTENSITY : -1; |
| case 3: |
| return (ctx->API != API_OPENGL_CORE) ? GL_RGB : -1; |
| case GL_RGB: |
| case GL_R3_G3_B2: |
| case GL_RGB4: |
| case GL_RGB5: |
| case GL_RGB8: |
| case GL_RGB10: |
| case GL_RGB12: |
| case GL_RGB16: |
| return GL_RGB; |
| case 4: |
| return (ctx->API != API_OPENGL_CORE) ? GL_RGBA : -1; |
| case GL_RGBA: |
| case GL_RGBA2: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_RGBA8: |
| case GL_RGB10_A2: |
| case GL_RGBA12: |
| case GL_RGBA16: |
| return GL_RGBA; |
| default: |
| ; /* fallthrough */ |
| } |
| |
| /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0). |
| */ |
| if (_mesa_is_gles(ctx)) { |
| switch (internalFormat) { |
| case GL_BGRA: |
| return GL_RGBA; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_ARB_ES2_compatibility(ctx) || |
| _mesa_has_OES_framebuffer_object(ctx) || |
| ctx->API == API_OPENGLES2) { |
| switch (internalFormat) { |
| case GL_RGB565: |
| return GL_RGB; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_ARB_depth_texture(ctx) || _mesa_has_OES_depth_texture(ctx) || |
| ctx->API == API_OPENGL_CORE) { |
| switch (internalFormat) { |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT24: |
| case GL_DEPTH_COMPONENT32: |
| return GL_DEPTH_COMPONENT; |
| case GL_DEPTH_STENCIL: |
| case GL_DEPTH24_STENCIL8: |
| return GL_DEPTH_STENCIL; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_ARB_texture_stencil8(ctx) || |
| _mesa_has_OES_texture_stencil8(ctx)) { |
| switch (internalFormat) { |
| case GL_STENCIL_INDEX: |
| case GL_STENCIL_INDEX1: |
| case GL_STENCIL_INDEX4: |
| case GL_STENCIL_INDEX8: |
| case GL_STENCIL_INDEX16: |
| return GL_STENCIL_INDEX; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| switch (internalFormat) { |
| case GL_COMPRESSED_ALPHA: |
| return GL_ALPHA; |
| case GL_COMPRESSED_LUMINANCE: |
| return GL_LUMINANCE; |
| case GL_COMPRESSED_LUMINANCE_ALPHA: |
| return GL_LUMINANCE_ALPHA; |
| case GL_COMPRESSED_INTENSITY: |
| return GL_INTENSITY; |
| case GL_COMPRESSED_RGB: |
| return GL_RGB; |
| case GL_COMPRESSED_RGBA: |
| return GL_RGBA; |
| default: |
| ; /* fallthrough */ |
| } |
| |
| if (_mesa_is_compressed_format(ctx, internalFormat)) { |
| GLenum base_compressed = |
| _mesa_gl_compressed_format_base_format(internalFormat); |
| if (base_compressed) |
| return base_compressed; |
| } |
| |
| if ((_mesa_has_KHR_texture_compression_astc_ldr(ctx) && |
| is_astc_2d_format(internalFormat)) || |
| (_mesa_has_OES_texture_compression_astc(ctx) && |
| is_astc_3d_format(internalFormat))) |
| return GL_RGBA; |
| |
| if (_mesa_has_MESA_ycbcr_texture(ctx)) { |
| if (internalFormat == GL_YCBCR_MESA) |
| return GL_YCBCR_MESA; |
| } |
| |
| if (_mesa_has_half_float_textures(ctx)) { |
| switch (internalFormat) { |
| case GL_ALPHA16F_ARB: |
| return GL_ALPHA; |
| case GL_RGBA16F_ARB: |
| return GL_RGBA; |
| case GL_RGB16F_ARB: |
| return GL_RGB; |
| case GL_INTENSITY16F_ARB: |
| return GL_INTENSITY; |
| case GL_LUMINANCE16F_ARB: |
| return GL_LUMINANCE; |
| case GL_LUMINANCE_ALPHA16F_ARB: |
| return GL_LUMINANCE_ALPHA; |
| } |
| } |
| |
| if (_mesa_has_float_textures(ctx)) { |
| switch (internalFormat) { |
| case GL_ALPHA32F_ARB: |
| return GL_ALPHA; |
| case GL_RGBA32F_ARB: |
| return GL_RGBA; |
| case GL_RGB32F_ARB: |
| return GL_RGB; |
| case GL_INTENSITY32F_ARB: |
| return GL_INTENSITY; |
| case GL_LUMINANCE32F_ARB: |
| return GL_LUMINANCE; |
| case GL_LUMINANCE_ALPHA32F_ARB: |
| return GL_LUMINANCE_ALPHA; |
| } |
| } |
| |
| if (_mesa_has_EXT_texture_snorm(ctx) || _mesa_is_gles3(ctx)) { |
| switch (internalFormat) { |
| case GL_RED_SNORM: |
| case GL_R8_SNORM: |
| case GL_R16_SNORM: |
| return GL_RED; |
| case GL_RG_SNORM: |
| case GL_RG8_SNORM: |
| case GL_RG16_SNORM: |
| return GL_RG; |
| case GL_RGB_SNORM: |
| case GL_RGB8_SNORM: |
| case GL_RGB16_SNORM: |
| return GL_RGB; |
| case GL_RGBA_SNORM: |
| case GL_RGBA8_SNORM: |
| case GL_RGBA16_SNORM: |
| return GL_RGBA; |
| case GL_ALPHA_SNORM: |
| case GL_ALPHA8_SNORM: |
| case GL_ALPHA16_SNORM: |
| return GL_ALPHA; |
| case GL_LUMINANCE_SNORM: |
| case GL_LUMINANCE8_SNORM: |
| case GL_LUMINANCE16_SNORM: |
| return GL_LUMINANCE; |
| case GL_LUMINANCE_ALPHA_SNORM: |
| case GL_LUMINANCE8_ALPHA8_SNORM: |
| case GL_LUMINANCE16_ALPHA16_SNORM: |
| return GL_LUMINANCE_ALPHA; |
| case GL_INTENSITY_SNORM: |
| case GL_INTENSITY8_SNORM: |
| case GL_INTENSITY16_SNORM: |
| return GL_INTENSITY; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_EXT_texture_sRGB(ctx) || _mesa_is_gles3(ctx)) { |
| switch (internalFormat) { |
| case GL_SRGB_EXT: |
| case GL_SRGB8_EXT: |
| case GL_COMPRESSED_SRGB_EXT: |
| return GL_RGB; |
| case GL_SRGB_ALPHA_EXT: |
| case GL_SRGB8_ALPHA8_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_EXT: |
| return GL_RGBA; |
| case GL_SLUMINANCE_ALPHA_EXT: |
| case GL_SLUMINANCE8_ALPHA8_EXT: |
| case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: |
| return GL_LUMINANCE_ALPHA; |
| case GL_SLUMINANCE_EXT: |
| case GL_SLUMINANCE8_EXT: |
| case GL_COMPRESSED_SLUMINANCE_EXT: |
| return GL_LUMINANCE; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_EXT_texture_sRGB_R8(ctx)) { |
| switch (internalFormat) { |
| case GL_SR8_EXT: |
| return GL_RED; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_integer_textures(ctx)) { |
| switch (internalFormat) { |
| case GL_RGBA8UI_EXT: |
| case GL_RGBA16UI_EXT: |
| case GL_RGBA32UI_EXT: |
| case GL_RGBA8I_EXT: |
| case GL_RGBA16I_EXT: |
| case GL_RGBA32I_EXT: |
| return GL_RGBA; |
| case GL_RGB8UI_EXT: |
| case GL_RGB16UI_EXT: |
| case GL_RGB32UI_EXT: |
| case GL_RGB8I_EXT: |
| case GL_RGB16I_EXT: |
| case GL_RGB32I_EXT: |
| return GL_RGB; |
| } |
| } |
| |
| if (_mesa_has_texture_rgb10_a2ui(ctx)) { |
| switch (internalFormat) { |
| case GL_RGB10_A2UI: |
| return GL_RGBA; |
| } |
| } |
| |
| if (_mesa_has_integer_textures(ctx)) { |
| switch (internalFormat) { |
| case GL_ALPHA8UI_EXT: |
| case GL_ALPHA16UI_EXT: |
| case GL_ALPHA32UI_EXT: |
| case GL_ALPHA8I_EXT: |
| case GL_ALPHA16I_EXT: |
| case GL_ALPHA32I_EXT: |
| return GL_ALPHA; |
| case GL_INTENSITY8UI_EXT: |
| case GL_INTENSITY16UI_EXT: |
| case GL_INTENSITY32UI_EXT: |
| case GL_INTENSITY8I_EXT: |
| case GL_INTENSITY16I_EXT: |
| case GL_INTENSITY32I_EXT: |
| return GL_INTENSITY; |
| case GL_LUMINANCE8UI_EXT: |
| case GL_LUMINANCE16UI_EXT: |
| case GL_LUMINANCE32UI_EXT: |
| case GL_LUMINANCE8I_EXT: |
| case GL_LUMINANCE16I_EXT: |
| case GL_LUMINANCE32I_EXT: |
| return GL_LUMINANCE; |
| case GL_LUMINANCE_ALPHA8UI_EXT: |
| case GL_LUMINANCE_ALPHA16UI_EXT: |
| case GL_LUMINANCE_ALPHA32UI_EXT: |
| case GL_LUMINANCE_ALPHA8I_EXT: |
| case GL_LUMINANCE_ALPHA16I_EXT: |
| case GL_LUMINANCE_ALPHA32I_EXT: |
| return GL_LUMINANCE_ALPHA; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_rg_textures(ctx)) { |
| switch (internalFormat) { |
| case GL_R16F: |
| if (!_mesa_has_half_float_textures(ctx)) |
| break; |
| return GL_RED; |
| case GL_R32F: |
| if (!_mesa_has_float_textures(ctx)) |
| break; |
| return GL_RED; |
| case GL_R8I: |
| case GL_R8UI: |
| case GL_R16I: |
| case GL_R16UI: |
| case GL_R32I: |
| case GL_R32UI: |
| if (!_mesa_has_integer_textures(ctx)) |
| break; |
| /* FALLTHROUGH */ |
| case GL_R8: |
| case GL_R16: |
| case GL_RED: |
| case GL_COMPRESSED_RED: |
| return GL_RED; |
| |
| case GL_RG16F: |
| if (!_mesa_has_half_float_textures(ctx)) |
| break; |
| return GL_RG; |
| case GL_RG32F: |
| if (!_mesa_has_float_textures(ctx)) |
| break; |
| return GL_RG; |
| case GL_RG8I: |
| case GL_RG8UI: |
| case GL_RG16I: |
| case GL_RG16UI: |
| case GL_RG32I: |
| case GL_RG32UI: |
| if (!_mesa_has_integer_textures(ctx)) |
| break; |
| /* FALLTHROUGH */ |
| case GL_RG: |
| case GL_RG8: |
| case GL_RG16: |
| case GL_COMPRESSED_RG: |
| return GL_RG; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_texture_shared_exponent(ctx)) { |
| switch (internalFormat) { |
| case GL_RGB9_E5_EXT: |
| return GL_RGB; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_packed_float(ctx)) { |
| switch (internalFormat) { |
| case GL_R11F_G11F_B10F_EXT: |
| return GL_RGB; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| if (_mesa_has_float_depth_buffer(ctx)) { |
| switch (internalFormat) { |
| case GL_DEPTH_COMPONENT32F: |
| return GL_DEPTH_COMPONENT; |
| case GL_DEPTH32F_STENCIL8: |
| return GL_DEPTH_STENCIL; |
| default: |
| ; /* fallthrough */ |
| } |
| } |
| |
| return -1; /* error */ |
| } |
| |
| /** |
| * Returns the effective internal format from a texture format and type. |
| * This is used by texture image operations internally for validation, when |
| * the specified internal format is a base (unsized) format. |
| * |
| * This method will only return a valid effective internal format if the |
| * combination of format, type and internal format in base form, is acceptable. |
| * |
| * If a single sized internal format is defined in the spec (OpenGL-ES 3.0.4) or |
| * in extensions, to unambiguously correspond to the given base format, then |
| * that internal format is returned as the effective. Otherwise, if the |
| * combination is accepted but a single effective format is not defined, the |
| * passed base format will be returned instead. |
| * |
| * \param format the texture format |
| * \param type the texture type |
| */ |
| static GLenum |
| gles_effective_internal_format_for_format_and_type(GLenum format, |
| GLenum type) |
| { |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| switch (format) { |
| case GL_RGBA: |
| return GL_RGBA8; |
| case GL_RGB: |
| return GL_RGB8; |
| case GL_RG: |
| return GL_RG8; |
| case GL_RED: |
| return GL_R8; |
| /* Although LUMINANCE_ALPHA, LUMINANCE and ALPHA appear in table 3.12, |
| * (section 3.8 Texturing, page 128 of the OpenGL-ES 3.0.4) as effective |
| * internal formats, they do not correspond to GL constants, so the base |
| * format is returned instead. |
| */ |
| case GL_BGRA_EXT: |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE: |
| case GL_ALPHA: |
| return format; |
| } |
| break; |
| |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| if (format == GL_RGBA) |
| return GL_RGBA4; |
| break; |
| |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| if (format == GL_RGBA) |
| return GL_RGB5_A1; |
| break; |
| |
| case GL_UNSIGNED_SHORT_5_6_5: |
| if (format == GL_RGB) |
| return GL_RGB565; |
| break; |
| |
| /* OES_packed_depth_stencil */ |
| case GL_UNSIGNED_INT_24_8: |
| if (format == GL_DEPTH_STENCIL) |
| return GL_DEPTH24_STENCIL8; |
| break; |
| |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| if (format == GL_DEPTH_STENCIL) |
| return GL_DEPTH32F_STENCIL8; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (format == GL_DEPTH_COMPONENT) |
| return GL_DEPTH_COMPONENT16; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| /* It can be DEPTH_COMPONENT16 or DEPTH_COMPONENT24, so just return |
| * the format. |
| */ |
| if (format == GL_DEPTH_COMPONENT) |
| return format; |
| break; |
| |
| /* OES_texture_float and OES_texture_half_float */ |
| case GL_FLOAT: |
| if (format == GL_DEPTH_COMPONENT) |
| return GL_DEPTH_COMPONENT32F; |
| /* fall through */ |
| case GL_HALF_FLOAT_OES: |
| switch (format) { |
| case GL_RGBA: |
| case GL_RGB: |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE: |
| case GL_ALPHA: |
| case GL_RED: |
| case GL_RG: |
| return format; |
| } |
| break; |
| case GL_HALF_FLOAT: |
| switch (format) { |
| case GL_RG: |
| case GL_RED: |
| return format; |
| } |
| break; |
| |
| /* GL_EXT_texture_type_2_10_10_10_REV */ |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| switch (format) { |
| case GL_RGBA: |
| case GL_RGB: |
| return format; |
| } |
| break; |
| |
| default: |
| /* fall through and return NONE */ |
| break; |
| } |
| |
| return GL_NONE; |
| } |
| |
| /** |
| * Do error checking of format/type combinations for OpenGL ES 3 |
| * glTex[Sub]Image, or ES1/ES2 with GL_OES_required_internalformat. |
| * \return error code, or GL_NO_ERROR. |
| */ |
| GLenum |
| _mesa_gles_error_check_format_and_type(const struct gl_context *ctx, |
| GLenum format, GLenum type, |
| GLenum internalFormat) |
| { |
| /* If internalFormat is an unsized format, then the effective internal |
| * format derived from format and type should be used instead. Page 127, |
| * section "3.8 Texturing" of the GLES 3.0.4 spec states: |
| * |
| * "if internalformat is a base internal format, the effective |
| * internal format is a sized internal format that is derived |
| * from the format and type for internal use by the GL. |
| * Table 3.12 specifies the mapping of format and type to effective |
| * internal formats. The effective internal format is used by the GL |
| * for purposes such as texture completeness or type checks for |
| * CopyTex* commands. In these cases, the GL is required to operate |
| * as if the effective internal format was used as the internalformat |
| * when specifying the texture data." |
| */ |
| if (_mesa_is_enum_format_unsized(internalFormat)) { |
| GLenum effectiveInternalFormat = |
| gles_effective_internal_format_for_format_and_type(format, type); |
| |
| if (effectiveInternalFormat == GL_NONE) |
| return GL_INVALID_OPERATION; |
| |
| GLenum baseInternalFormat; |
| if (internalFormat == GL_BGRA_EXT) { |
| /* Unfortunately, _mesa_base_tex_format returns a base format of |
| * GL_RGBA for GL_BGRA_EXT. This makes perfect sense if you're |
| * asking the question, "what channels does this format have?" |
| * However, if we're trying to determine if two internal formats |
| * match in the ES3 sense, we actually want GL_BGRA. |
| */ |
| baseInternalFormat = GL_BGRA_EXT; |
| } else { |
| baseInternalFormat = |
| _mesa_base_tex_format(ctx, effectiveInternalFormat); |
| } |
| |
| if (internalFormat != baseInternalFormat) |
| return GL_INVALID_OPERATION; |
| |
| internalFormat = effectiveInternalFormat; |
| } |
| |
| /* The GLES variant of EXT_texture_compression_s3tc is very vague and |
| * doesn't list valid types. Just do exactly what the spec says. |
| */ |
| if (_mesa_has_EXT_texture_compression_s3tc(ctx) && |
| (internalFormat == GL_COMPRESSED_RGB_S3TC_DXT1_EXT || |
| internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT || |
| internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT || |
| internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)) |
| return format == GL_RGB || format == GL_RGBA ? GL_NO_ERROR : |
| GL_INVALID_OPERATION; |
| |
| switch (format) { |
| case GL_BGRA_EXT: |
| if (type != GL_UNSIGNED_BYTE || internalFormat != GL_BGRA) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_RGBA: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| switch (internalFormat) { |
| case GL_RGBA: |
| case GL_RGBA8: |
| case GL_RGB5_A1: |
| case GL_RGBA4: |
| break; |
| case GL_SRGB8_ALPHA8_EXT: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_COMPRESSED_RGBA_BPTC_UNORM: |
| case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: |
| if (!_mesa_has_EXT_texture_compression_bptc(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_BYTE: |
| if (ctx->Version <= 20 || internalFormat != GL_RGBA8_SNORM) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat != GL_RGBA16) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || |
| internalFormat != GL_RGBA16_SNORM) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| switch (internalFormat) { |
| case GL_RGBA: |
| case GL_RGBA4: |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| switch (internalFormat) { |
| case GL_RGBA: |
| case GL_RGB5_A1: |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| switch (internalFormat) { |
| case GL_RGBA: |
| case GL_RGB10_A2: |
| case GL_RGB5_A1: |
| if (!_mesa_has_texture_type_2_10_10_10_REV(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_HALF_FLOAT: |
| if (ctx->Version <= 20 || internalFormat != GL_RGBA16F) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_FLOAT: |
| switch (internalFormat) { |
| case GL_RGBA16F: |
| case GL_RGBA32F: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_RGBA: |
| if (!_mesa_has_OES_texture_float(ctx) || internalFormat != format) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_HALF_FLOAT_OES: |
| if (!_mesa_has_OES_texture_half_float(ctx) || internalFormat != format) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RGBA_INTEGER: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| if (internalFormat != GL_RGBA8UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_BYTE: |
| if (internalFormat != GL_RGBA8I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (internalFormat != GL_RGBA16UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (internalFormat != GL_RGBA16I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| if (internalFormat != GL_RGBA32UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_INT: |
| if (internalFormat != GL_RGBA32I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (internalFormat != GL_RGB10_A2UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RGB: |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| switch (internalFormat) { |
| case GL_RGB: |
| case GL_RGB8: |
| case GL_RGB565: |
| break; |
| case GL_SRGB8: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_BYTE: |
| if (ctx->Version <= 20 || internalFormat != GL_RGB8_SNORM) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat != GL_RGB16) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || |
| internalFormat != GL_RGB16_SNORM) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT_5_6_5: |
| switch (internalFormat) { |
| case GL_RGB: |
| case GL_RGB565: |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| if (ctx->Version <= 20 || internalFormat != GL_R11F_G11F_B10F) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| if (ctx->Version <= 20 || internalFormat != GL_RGB9_E5) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_HALF_FLOAT: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| switch (internalFormat) { |
| case GL_RGB16F: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB9_E5: |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_FLOAT: |
| switch (internalFormat) { |
| case GL_RGB16F: |
| case GL_RGB32F: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB9_E5: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT: |
| case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT: |
| if (!_mesa_has_EXT_texture_compression_bptc(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_RGB: |
| if (!_mesa_has_OES_texture_float(ctx) || internalFormat != format) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_HALF_FLOAT_OES: |
| if (!_mesa_has_OES_texture_half_float(ctx) || internalFormat != format) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| switch (internalFormat) { |
| case GL_RGB: |
| case GL_RGB10: |
| case GL_RGB8: |
| case GL_RGB565: |
| /* GL_EXT_texture_type_2_10_10_10_REV allows GL_RGB even though |
| * GLES3 doesn't, and GL_OES_required_internalformat extends that |
| * to allow the sized RGB internalformats as well. |
| */ |
| if (!_mesa_has_texture_type_2_10_10_10_REV(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RGB_INTEGER: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| if (internalFormat != GL_RGB8UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_BYTE: |
| if (internalFormat != GL_RGB8I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (internalFormat != GL_RGB16UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (internalFormat != GL_RGB16I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| if (internalFormat != GL_RGB32UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_INT: |
| if (internalFormat != GL_RGB32I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RG: |
| if (!_mesa_has_rg_textures(ctx)) |
| return GL_INVALID_OPERATION; |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| if (internalFormat != GL_RG8 && |
| (!_mesa_has_EXT_texture_compression_rgtc(ctx) || |
| internalFormat != GL_COMPRESSED_RED_GREEN_RGTC2_EXT)) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_BYTE: |
| if (internalFormat != GL_RG8_SNORM && |
| (!_mesa_has_EXT_texture_compression_rgtc(ctx) || |
| internalFormat != GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT)) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat != GL_RG16) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || |
| internalFormat != GL_RG16_SNORM) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| switch (internalFormat) { |
| case GL_RG16F: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_RG: |
| if (!_mesa_has_rg_textures(ctx) || |
| !_mesa_has_OES_texture_half_float(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_FLOAT: |
| switch (internalFormat) { |
| case GL_RG16F: |
| case GL_RG32F: |
| break; |
| case GL_RG: |
| if (!_mesa_has_rg_textures(ctx) || |
| !_mesa_has_OES_texture_float(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RG_INTEGER: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| if (internalFormat != GL_RG8UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_BYTE: |
| if (internalFormat != GL_RG8I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (internalFormat != GL_RG16UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (internalFormat != GL_RG16I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| if (internalFormat != GL_RG32UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_INT: |
| if (internalFormat != GL_RG32I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RED: |
| if (!_mesa_has_rg_textures(ctx)) |
| return GL_INVALID_OPERATION; |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| if (internalFormat == GL_R8 || |
| ((internalFormat == GL_SR8_EXT) && |
| _mesa_has_EXT_texture_sRGB_R8(ctx)) || |
| (internalFormat == GL_COMPRESSED_RED_RGTC1_EXT && |
| _mesa_has_EXT_texture_compression_rgtc(ctx))) |
| break; |
| return GL_INVALID_OPERATION; |
| |
| case GL_BYTE: |
| if (internalFormat != GL_R8_SNORM && |
| (!_mesa_has_EXT_texture_compression_rgtc(ctx) || |
| internalFormat != GL_COMPRESSED_SIGNED_RED_RGTC1_EXT)) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || internalFormat != GL_R16) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (!_mesa_has_EXT_texture_norm16(ctx) || |
| internalFormat != GL_R16_SNORM) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| switch (internalFormat) { |
| case GL_R16F: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_RG: |
| case GL_RED: |
| if (!_mesa_has_rg_textures(ctx) || |
| !_mesa_has_OES_texture_half_float(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_FLOAT: |
| switch (internalFormat) { |
| case GL_R16F: |
| case GL_R32F: |
| break; |
| case GL_RED: |
| if (!_mesa_has_rg_textures(ctx) || |
| !_mesa_has_OES_texture_float(ctx)) |
| return GL_INVALID_OPERATION; |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_RED_INTEGER: |
| if (ctx->Version <= 20) |
| return GL_INVALID_OPERATION; |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| if (internalFormat != GL_R8UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_BYTE: |
| if (internalFormat != GL_R8I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_SHORT: |
| if (internalFormat != GL_R16UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_SHORT: |
| if (internalFormat != GL_R16I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| if (internalFormat != GL_R32UI) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_INT: |
| if (internalFormat != GL_R32I) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_DEPTH_COMPONENT: |
| switch (type) { |
| case GL_UNSIGNED_SHORT: |
| if (internalFormat != GL_DEPTH_COMPONENT |
| && internalFormat != GL_DEPTH_COMPONENT16) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_UNSIGNED_INT: |
| switch (internalFormat) { |
| case GL_DEPTH_COMPONENT: |
| case GL_DEPTH_COMPONENT16: |
| case GL_DEPTH_COMPONENT24: |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_FLOAT: |
| if (ctx->Version <= 20 || internalFormat != GL_DEPTH_COMPONENT32F) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_DEPTH_STENCIL: |
| switch (type) { |
| case GL_UNSIGNED_INT_24_8: |
| if (internalFormat != GL_DEPTH_STENCIL |
| && internalFormat != GL_DEPTH24_STENCIL8) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| if (ctx->Version <= 20 || internalFormat != GL_DEPTH32F_STENCIL8) |
| return GL_INVALID_OPERATION; |
| break; |
| |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_STENCIL_INDEX: |
| if (!_mesa_has_OES_texture_stencil8(ctx) || |
| type != GL_UNSIGNED_BYTE || |
| internalFormat != GL_STENCIL_INDEX8) { |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| |
| case GL_ALPHA: |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_ALPHA: |
| switch (type) { |
| case GL_FLOAT: |
| if (!_mesa_has_OES_texture_float(ctx) || internalFormat != format) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_HALF_FLOAT_OES: |
| if (!_mesa_has_OES_texture_half_float(ctx) || internalFormat != format) |
| return GL_INVALID_OPERATION; |
| break; |
| case GL_UNSIGNED_BYTE: |
| if (!(format == internalFormat || |
| (format == GL_ALPHA && internalFormat == GL_ALPHA8) || |
| (format == GL_LUMINANCE && internalFormat == GL_LUMINANCE8) || |
| (format == GL_LUMINANCE_ALPHA && |
| ((internalFormat == GL_LUMINANCE8_ALPHA8) || |
| (internalFormat == GL_LUMINANCE4_ALPHA4))))) { |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| default: |
| return GL_INVALID_OPERATION; |
| } |
| break; |
| } |
| |
| return GL_NO_ERROR; |
| } |
| |
| static void |
| set_swizzle(uint8_t *swizzle, int x, int y, int z, int w) |
| { |
| swizzle[MESA_FORMAT_SWIZZLE_X] = x; |
| swizzle[MESA_FORMAT_SWIZZLE_Y] = y; |
| swizzle[MESA_FORMAT_SWIZZLE_Z] = z; |
| swizzle[MESA_FORMAT_SWIZZLE_W] = w; |
| } |
| |
| static bool |
| get_swizzle_from_gl_format(GLenum format, uint8_t *swizzle) |
| { |
| switch (format) { |
| case GL_RGBA: |
| case GL_RGBA_INTEGER_EXT: |
| set_swizzle(swizzle, 0, 1, 2, 3); |
| return true; |
| case GL_BGRA: |
| case GL_BGRA_INTEGER_EXT: |
| set_swizzle(swizzle, 2, 1, 0, 3); |
| return true; |
| case GL_ABGR_EXT: |
| set_swizzle(swizzle, 3, 2, 1, 0); |
| return true; |
| case GL_RGB: |
| case GL_RGB_INTEGER_EXT: |
| set_swizzle(swizzle, 0, 1, 2, 5); |
| return true; |
| case GL_BGR: |
| case GL_BGR_INTEGER_EXT: |
| set_swizzle(swizzle, 2, 1, 0, 5); |
| return true; |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE_ALPHA_INTEGER_EXT: |
| set_swizzle(swizzle, 0, 0, 0, 1); |
| return true; |
| case GL_RG: |
| case GL_RG_INTEGER: |
| set_swizzle(swizzle, 0, 1, 4, 5); |
| return true; |
| case GL_RED: |
| case GL_RED_INTEGER_EXT: |
| set_swizzle(swizzle, 0, 4, 4, 5); |
| return true; |
| case GL_GREEN: |
| case GL_GREEN_INTEGER_EXT: |
| set_swizzle(swizzle, 4, 0, 4, 5); |
| return true; |
| case GL_BLUE: |
| case GL_BLUE_INTEGER_EXT: |
| set_swizzle(swizzle, 4, 4, 0, 5); |
| return true; |
| case GL_ALPHA: |
| case GL_ALPHA_INTEGER_EXT: |
| set_swizzle(swizzle, 4, 4, 4, 0); |
| return true; |
| case GL_LUMINANCE: |
| case GL_LUMINANCE_INTEGER_EXT: |
| set_swizzle(swizzle, 0, 0, 0, 5); |
| return true; |
| case GL_INTENSITY: |
| set_swizzle(swizzle, 0, 0, 0, 0); |
| return true; |
| case GL_DEPTH_COMPONENT: |
| set_swizzle(swizzle, 0, 6, 6, 6); |
| return true; |
| case GL_STENCIL_INDEX: |
| set_swizzle(swizzle, 6, 0, 6, 6); |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| bool |
| _mesa_swap_bytes_in_type_enum(GLenum *type) |
| { |
| switch (*type) { |
| case GL_UNSIGNED_INT_8_8_8_8: |
| *type = GL_UNSIGNED_INT_8_8_8_8_REV; |
| return true; |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| *type = GL_UNSIGNED_INT_8_8_8_8; |
| return true; |
| case GL_UNSIGNED_SHORT_8_8_MESA: |
| *type = GL_UNSIGNED_SHORT_8_8_REV_MESA; |
| return true; |
| case GL_UNSIGNED_SHORT_8_8_REV_MESA: |
| *type = GL_UNSIGNED_SHORT_8_8_MESA; |
| return true; |
| case GL_BYTE: |
| case GL_UNSIGNED_BYTE: |
| /* format/types that are arrays of 8-bit values are unaffected by |
| * swapBytes. |
| */ |
| return true; |
| default: |
| /* swapping bytes on 4444, 1555, or >8 bit per channel types etc. will |
| * never match a Mesa format. |
| */ |
| return false; |
| } |
| } |
| |
| /** |
| * Take an OpenGL format (GL_RGB, GL_RGBA, etc), OpenGL data type (GL_INT, |
| * GL_FOAT, etc) and return a matching mesa_array_format or a mesa_format |
| * otherwise (for non-array formats). |
| * |
| * This function will typically be used to compute a mesa format from a GL type |
| * so we can then call _mesa_format_convert. This function does |
| * not consider byte swapping, so it returns types assuming that no byte |
| * swapping is involved. If byte swapping is involved then clients are supposed |
| * to handle that on their side before calling _mesa_format_convert. |
| * |
| * This function returns an uint32_t that can pack a mesa_format or a |
| * mesa_array_format. Clients must check the mesa array format bit |
| * (MESA_ARRAY_FORMAT_BIT) on the return value to know if the returned |
| * format is a mesa_array_format or a mesa_format. |
| */ |
| uint32_t |
| _mesa_format_from_format_and_type(GLenum format, GLenum type) |
| { |
| bool is_array_format = true; |
| uint8_t swizzle[4]; |
| bool normalized = false, is_float = false, is_signed = false; |
| int num_channels = 0, type_size = 0; |
| |
| if (format == GL_COLOR_INDEX) |
| return MESA_FORMAT_NONE; |
| |
| /* Extract array format type information from the OpenGL data type */ |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| type_size = 1; |
| break; |
| case GL_BYTE: |
| type_size = 1; |
| is_signed = true; |
| break; |
| case GL_UNSIGNED_SHORT: |
| type_size = 2; |
| break; |
| case GL_SHORT: |
| type_size = 2; |
| is_signed = true; |
| break; |
| case GL_UNSIGNED_INT: |
| type_size = 4; |
| break; |
| case GL_INT: |
| type_size = 4; |
| is_signed = true; |
| break; |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| type_size = 2; |
| is_signed = true; |
| is_float = true; |
| break; |
| case GL_FLOAT: |
| type_size = 4; |
| is_signed = true; |
| is_float = true; |
| break; |
| default: |
| is_array_format = false; |
| break; |
| } |
| |
| /* Extract array format swizzle information from the OpenGL format */ |
| if (is_array_format) |
| is_array_format = get_swizzle_from_gl_format(format, swizzle); |
| |
| /* If this is an array format type after checking data type and format, |
| * create the array format |
| */ |
| if (is_array_format) { |
| enum mesa_array_format_base_format bf; |
| switch (format) { |
| case GL_DEPTH_COMPONENT: |
| bf = MESA_ARRAY_FORMAT_BASE_FORMAT_DEPTH; |
| break; |
| case GL_STENCIL_INDEX: |
| bf = MESA_ARRAY_FORMAT_BASE_FORMAT_STENCIL; |
| break; |
| default: |
| bf = MESA_ARRAY_FORMAT_BASE_FORMAT_RGBA_VARIANTS; |
| break; |
| } |
| |
| normalized = !(_mesa_is_enum_format_integer(format) || |
| format == GL_STENCIL_INDEX); |
| num_channels = _mesa_components_in_format(format); |
| |
| return MESA_ARRAY_FORMAT(bf, type_size, is_signed, is_float, |
| normalized, num_channels, |
| swizzle[0], swizzle[1], swizzle[2], swizzle[3]); |
| } |
| |
| /* Otherwise this is not an array format, so return the mesa_format |
| * matching the OpenGL format and data type |
| */ |
| switch (type) { |
| case GL_UNSIGNED_SHORT_5_6_5: |
| if (format == GL_RGB) |
| return MESA_FORMAT_B5G6R5_UNORM; |
| else if (format == GL_BGR) |
| return MESA_FORMAT_R5G6B5_UNORM; |
| else if (format == GL_RGB_INTEGER) |
| return MESA_FORMAT_B5G6R5_UINT; |
| break; |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| if (format == GL_RGB) |
| return MESA_FORMAT_R5G6B5_UNORM; |
| else if (format == GL_BGR) |
| return MESA_FORMAT_B5G6R5_UNORM; |
| else if (format == GL_RGB_INTEGER) |
| return MESA_FORMAT_R5G6B5_UINT; |
| break; |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_A4B4G4R4_UNORM; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_A4R4G4B4_UNORM; |
| else if (format == GL_ABGR_EXT) |
| return MESA_FORMAT_R4G4B4A4_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_A4B4G4R4_UINT; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_A4R4G4B4_UINT; |
| break; |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_R4G4B4A4_UNORM; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_B4G4R4A4_UNORM; |
| else if (format == GL_ABGR_EXT) |
| return MESA_FORMAT_A4B4G4R4_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_R4G4B4A4_UINT; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_B4G4R4A4_UINT; |
| break; |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_A1B5G5R5_UNORM; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_A1R5G5B5_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_A1B5G5R5_UINT; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_A1R5G5B5_UINT; |
| break; |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_R5G5B5A1_UNORM; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_B5G5R5A1_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_R5G5B5A1_UINT; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_B5G5R5A1_UINT; |
| break; |
| case GL_UNSIGNED_BYTE_3_3_2: |
| if (format == GL_RGB) |
| return MESA_FORMAT_B2G3R3_UNORM; |
| else if (format == GL_RGB_INTEGER) |
| return MESA_FORMAT_B2G3R3_UINT; |
| break; |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| if (format == GL_RGB) |
| return MESA_FORMAT_R3G3B2_UNORM; |
| else if (format == GL_RGB_INTEGER) |
| return MESA_FORMAT_R3G3B2_UINT; |
| break; |
| case GL_UNSIGNED_INT_5_9_9_9_REV: |
| if (format == GL_RGB) |
| return MESA_FORMAT_R9G9B9E5_FLOAT; |
| break; |
| case GL_UNSIGNED_INT_10_10_10_2: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_A2B10G10R10_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_A2B10G10R10_UINT; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_A2R10G10B10_UNORM; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_A2R10G10B10_UINT; |
| break; |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (format == GL_RGB) |
| return MESA_FORMAT_R10G10B10X2_UNORM; |
| if (format == GL_RGBA) |
| return MESA_FORMAT_R10G10B10A2_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_R10G10B10A2_UINT; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_B10G10R10A2_UNORM; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_B10G10R10A2_UINT; |
| break; |
| case GL_UNSIGNED_INT_8_8_8_8: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_A8B8G8R8_UNORM; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_A8R8G8B8_UNORM; |
| else if (format == GL_ABGR_EXT) |
| return MESA_FORMAT_R8G8B8A8_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_A8B8G8R8_UINT; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_A8R8G8B8_UINT; |
| break; |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| if (format == GL_RGBA) |
| return MESA_FORMAT_R8G8B8A8_UNORM; |
| else if (format == GL_BGRA) |
| return MESA_FORMAT_B8G8R8A8_UNORM; |
| else if (format == GL_ABGR_EXT) |
| return MESA_FORMAT_A8B8G8R8_UNORM; |
| else if (format == GL_RGBA_INTEGER) |
| return MESA_FORMAT_R8G8B8A8_UINT; |
| else if (format == GL_BGRA_INTEGER) |
| return MESA_FORMAT_B8G8R8A8_UINT; |
| break; |
| case GL_UNSIGNED_SHORT_8_8_MESA: |
| if (format == GL_YCBCR_MESA) |
| return MESA_FORMAT_YCBCR; |
| break; |
| case GL_UNSIGNED_SHORT_8_8_REV_MESA: |
| if (format == GL_YCBCR_MESA) |
| return MESA_FORMAT_YCBCR_REV; |
| break; |
| case GL_UNSIGNED_INT_10F_11F_11F_REV: |
| if (format == GL_RGB) |
| return MESA_FORMAT_R11G11B10_FLOAT; |
| break; |
| case GL_FLOAT: |
| if (format == GL_DEPTH_COMPONENT) |
| return MESA_FORMAT_Z_FLOAT32; |
| break; |
| case GL_UNSIGNED_INT: |
| if (format == GL_DEPTH_COMPONENT) |
| return MESA_FORMAT_Z_UNORM32; |
| break; |
| case GL_UNSIGNED_SHORT: |
| if (format == GL_DEPTH_COMPONENT) |
| return MESA_FORMAT_Z_UNORM16; |
| break; |
| case GL_UNSIGNED_INT_24_8: |
| if (format == GL_DEPTH_STENCIL) |
| return MESA_FORMAT_S8_UINT_Z24_UNORM; |
| else if (format == GL_DEPTH_COMPONENT) |
| return MESA_FORMAT_X8_UINT_Z24_UNORM; |
| break; |
| case GL_FLOAT_32_UNSIGNED_INT_24_8_REV: |
| if (format == GL_DEPTH_STENCIL) |
| return MESA_FORMAT_Z32_FLOAT_S8X24_UINT; |
| break; |
| default: |
| break; |
| } |
| |
| fprintf(stderr, "Unsupported format/type: %s/%s\n", |
| _mesa_enum_to_string(format), |
| _mesa_enum_to_string(type)); |
| |
| /* If we got here it means that we could not find a Mesa format that |
| * matches the GL format/type provided. We may need to add a new Mesa |
| * format in that case. |
| */ |
| unreachable("Unsupported format"); |
| } |
| |
| uint32_t |
| _mesa_tex_format_from_format_and_type(const struct gl_context *ctx, |
| GLenum gl_format, GLenum type) |
| { |
| mesa_format format = _mesa_format_from_format_and_type(gl_format, type); |
| |
| if (_mesa_format_is_mesa_array_format(format)) |
| format = _mesa_format_from_array_format(format); |
| |
| if (format == MESA_FORMAT_NONE || !ctx->TextureFormatSupported[format]) |
| return MESA_FORMAT_NONE; |
| |
| return format; |
| } |
| |
| /** |
| * Returns true if \p internal_format is a sized internal format that |
| * is marked "Color Renderable" in Table 8.10 of the ES 3.2 specification. |
| */ |
| bool |
| _mesa_is_es3_color_renderable(const struct gl_context *ctx, |
| GLenum internal_format) |
| { |
| switch (internal_format) { |
| case GL_R8: |
| case GL_RG8: |
| case GL_RGB8: |
| case GL_RGB565: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_RGBA8: |
| case GL_RGB10_A2: |
| case GL_RGB10_A2UI: |
| case GL_SRGB8_ALPHA8: |
| case GL_R16F: |
| case GL_RG16F: |
| case GL_RGBA16F: |
| case GL_R32F: |
| case GL_RG32F: |
| case GL_RGBA32F: |
| case GL_R11F_G11F_B10F: |
| case GL_R8I: |
| case GL_R8UI: |
| case GL_R16I: |
| case GL_R16UI: |
| case GL_R32I: |
| case GL_R32UI: |
| case GL_RG8I: |
| case GL_RG8UI: |
| case GL_RG16I: |
| case GL_RG16UI: |
| case GL_RG32I: |
| case GL_RG32UI: |
| case GL_RGBA8I: |
| case GL_RGBA8UI: |
| case GL_RGBA16I: |
| case GL_RGBA16UI: |
| case GL_RGBA32I: |
| case GL_RGBA32UI: |
| return true; |
| case GL_R16: |
| case GL_RG16: |
| case GL_RGBA16: |
| return _mesa_has_EXT_texture_norm16(ctx); |
| case GL_R8_SNORM: |
| case GL_RG8_SNORM: |
| case GL_RGBA8_SNORM: |
| return _mesa_has_EXT_render_snorm(ctx); |
| case GL_R16_SNORM: |
| case GL_RG16_SNORM: |
| case GL_RGBA16_SNORM: |
| return _mesa_has_EXT_texture_norm16(ctx) && |
| _mesa_has_EXT_render_snorm(ctx); |
| default: |
| return false; |
| } |
| } |
| |
| /** |
| * Returns true if \p internal_format is a sized internal format that |
| * is marked "Texture Filterable" in Table 8.10 of the ES 3.2 specification. |
| */ |
| bool |
| _mesa_is_es3_texture_filterable(const struct gl_context *ctx, |
| GLenum internal_format) |
| { |
| switch (internal_format) { |
| case GL_R8: |
| case GL_R8_SNORM: |
| case GL_RG8: |
| case GL_RG8_SNORM: |
| case GL_RGB8: |
| case GL_RGB8_SNORM: |
| case GL_RGB565: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_RGBA8: |
| case GL_RGBA8_SNORM: |
| case GL_RGB10_A2: |
| case GL_SRGB8: |
| case GL_SRGB8_ALPHA8: |
| case GL_R16F: |
| case GL_RG16F: |
| case GL_RGB16F: |
| case GL_RGBA16F: |
| case GL_R11F_G11F_B10F: |
| case GL_RGB9_E5: |
| return true; |
| case GL_R16: |
| case GL_R16_SNORM: |
| case GL_RG16: |
| case GL_RG16_SNORM: |
| case GL_RGB16: |
| case GL_RGB16_SNORM: |
| case GL_RGBA16: |
| case GL_RGBA16_SNORM: |
| return _mesa_has_EXT_texture_norm16(ctx); |
| case GL_R32F: |
| case GL_RG32F: |
| case GL_RGB32F: |
| case GL_RGBA32F: |
| /* The OES_texture_float_linear spec says: |
| * |
| * "When implemented against OpenGL ES 3.0 or later versions, sized |
| * 32-bit floating-point formats become texture-filterable. This |
| * should be noted by, for example, checking the ``TF'' column of |
| * table 8.13 in the ES 3.1 Specification (``Correspondence of sized |
| * internal formats to base internal formats ... and use cases ...'') |
| * for the R32F, RG32F, RGB32F, and RGBA32F formats." |
| */ |
| return _mesa_has_OES_texture_float_linear(ctx); |
| default: |
| return false; |
| } |
| } |