| #!/usr/bin/env python |
| |
| from mako.template import Template |
| from sys import argv |
| |
| string = """/* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (c) 2011 VMware, Inc. |
| * Copyright (c) 2014 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. |
| */ |
| |
| |
| /** |
| * Color, depth, stencil packing functions. |
| * Used to pack basic color, depth and stencil formats to specific |
| * hardware formats. |
| * |
| * There are both per-pixel and per-row packing functions: |
| * - The former will be used by swrast to write values to the color, depth, |
| * stencil buffers when drawing points, lines and masked spans. |
| * - The later will be used for image-oriented functions like glDrawPixels, |
| * glAccum, and glTexImage. |
| */ |
| |
| #include <stdint.h> |
| |
| #include "format_pack.h" |
| #include "format_utils.h" |
| #include "macros.h" |
| #include "util/format_rgb9e5.h" |
| #include "util/format_r11g11b10f.h" |
| #include "util/format_srgb.h" |
| |
| #define UNPACK(SRC, OFFSET, BITS) (((SRC) >> (OFFSET)) & MAX_UINT(BITS)) |
| #define PACK(SRC, OFFSET, BITS) (((SRC) & MAX_UINT(BITS)) << (OFFSET)) |
| |
| <% |
| import format_parser as parser |
| |
| formats = parser.parse(argv[1]) |
| |
| rgb_formats = [] |
| for f in formats: |
| if f.name == 'MESA_FORMAT_NONE': |
| continue |
| if f.colorspace not in ('rgb', 'srgb'): |
| continue |
| |
| rgb_formats.append(f) |
| %> |
| |
| /* ubyte packing functions */ |
| |
| %for f in rgb_formats: |
| %if f.name in ('MESA_FORMAT_R9G9B9E5_FLOAT', 'MESA_FORMAT_R11G11B10_FLOAT'): |
| <% continue %> |
| %elif f.is_compressed(): |
| <% continue %> |
| %endif |
| |
| static inline void |
| pack_ubyte_${f.short_name()}(const GLubyte src[4], void *dst) |
| { |
| %for (i, c) in enumerate(f.channels): |
| <% i = f.swizzle.inverse()[i] %> |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| |
| ${c.datatype()} ${c.name} = |
| %if not f.is_normalized() and f.is_int(): |
| %if c.type == parser.SIGNED: |
| _mesa_unsigned_to_signed(src[${i}], ${c.size}); |
| %else: |
| _mesa_unsigned_to_unsigned(src[${i}], ${c.size}); |
| %endif |
| %elif c.type == parser.UNSIGNED: |
| %if f.colorspace == 'srgb' and c.name in 'rgb': |
| <% assert c.size == 8 %> |
| util_format_linear_to_srgb_8unorm(src[${i}]); |
| %else: |
| _mesa_unorm_to_unorm(src[${i}], 8, ${c.size}); |
| %endif |
| %elif c.type == parser.SIGNED: |
| _mesa_unorm_to_snorm(src[${i}], 8, ${c.size}); |
| %elif c.type == parser.FLOAT: |
| %if c.size == 32: |
| _mesa_unorm_to_float(src[${i}], 8); |
| %elif c.size == 16: |
| _mesa_unorm_to_half(src[${i}], 8); |
| %else: |
| <% assert False %> |
| %endif |
| %else: |
| <% assert False %> |
| %endif |
| %endfor |
| |
| %if f.layout == parser.ARRAY: |
| ${f.datatype()} *d = (${f.datatype()} *)dst; |
| %for (i, c) in enumerate(f.channels): |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| d[${i}] = ${c.name}; |
| %endfor |
| %elif f.layout == parser.PACKED: |
| ${f.datatype()} d = 0; |
| %for (i, c) in enumerate(f.channels): |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| d |= PACK(${c.name}, ${c.shift}, ${c.size}); |
| %endfor |
| (*(${f.datatype()} *)dst) = d; |
| %else: |
| <% assert False %> |
| %endif |
| } |
| %endfor |
| |
| static inline void |
| pack_ubyte_r9g9b9e5_float(const GLubyte src[4], void *dst) |
| { |
| GLuint *d = (GLuint *) dst; |
| GLfloat rgb[3]; |
| rgb[0] = _mesa_unorm_to_float(src[RCOMP], 8); |
| rgb[1] = _mesa_unorm_to_float(src[GCOMP], 8); |
| rgb[2] = _mesa_unorm_to_float(src[BCOMP], 8); |
| *d = float3_to_rgb9e5(rgb); |
| } |
| |
| static inline void |
| pack_ubyte_r11g11b10_float(const GLubyte src[4], void *dst) |
| { |
| GLuint *d = (GLuint *) dst; |
| GLfloat rgb[3]; |
| rgb[0] = _mesa_unorm_to_float(src[RCOMP], 8); |
| rgb[1] = _mesa_unorm_to_float(src[GCOMP], 8); |
| rgb[2] = _mesa_unorm_to_float(src[BCOMP], 8); |
| *d = float3_to_r11g11b10f(rgb); |
| } |
| |
| /* uint packing functions */ |
| |
| %for f in rgb_formats: |
| %if not f.is_int(): |
| <% continue %> |
| %elif f.is_normalized(): |
| <% continue %> |
| %elif f.is_compressed(): |
| <% continue %> |
| %endif |
| |
| static inline void |
| pack_uint_${f.short_name()}(const GLuint src[4], void *dst) |
| { |
| %for (i, c) in enumerate(f.channels): |
| <% i = f.swizzle.inverse()[i] %> |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| |
| ${c.datatype()} ${c.name} = |
| %if c.type == parser.SIGNED: |
| _mesa_signed_to_signed(src[${i}], ${c.size}); |
| %elif c.type == parser.UNSIGNED: |
| _mesa_unsigned_to_unsigned(src[${i}], ${c.size}); |
| %else: |
| assert(!"Invalid type: only integer types are allowed"); |
| %endif |
| %endfor |
| |
| %if f.layout == parser.ARRAY: |
| ${f.datatype()} *d = (${f.datatype()} *)dst; |
| %for (i, c) in enumerate(f.channels): |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| d[${i}] = ${c.name}; |
| %endfor |
| %elif f.layout == parser.PACKED: |
| ${f.datatype()} d = 0; |
| %for (i, c) in enumerate(f.channels): |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| d |= PACK(${c.name}, ${c.shift}, ${c.size}); |
| %endfor |
| (*(${f.datatype()} *)dst) = d; |
| %else: |
| <% assert False %> |
| %endif |
| } |
| %endfor |
| |
| /* float packing functions */ |
| |
| %for f in rgb_formats: |
| %if f.name in ('MESA_FORMAT_R9G9B9E5_FLOAT', 'MESA_FORMAT_R11G11B10_FLOAT'): |
| <% continue %> |
| %elif f.is_int() and not f.is_normalized(): |
| <% continue %> |
| %elif f.is_compressed(): |
| <% continue %> |
| %endif |
| |
| static inline void |
| pack_float_${f.short_name()}(const GLfloat src[4], void *dst) |
| { |
| %for (i, c) in enumerate(f.channels): |
| <% i = f.swizzle.inverse()[i] %> |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| |
| ${c.datatype()} ${c.name} = |
| %if c.type == parser.UNSIGNED: |
| %if f.colorspace == 'srgb' and c.name in 'rgb': |
| <% assert c.size == 8 %> |
| util_format_linear_float_to_srgb_8unorm(src[${i}]); |
| %else: |
| _mesa_float_to_unorm(src[${i}], ${c.size}); |
| %endif |
| %elif c.type == parser.SIGNED: |
| _mesa_float_to_snorm(src[${i}], ${c.size}); |
| %elif c.type == parser.FLOAT: |
| %if c.size == 32: |
| src[${i}]; |
| %elif c.size == 16: |
| _mesa_float_to_half(src[${i}]); |
| %else: |
| <% assert False %> |
| %endif |
| %else: |
| <% assert False %> |
| %endif |
| %endfor |
| |
| %if f.layout == parser.ARRAY: |
| ${f.datatype()} *d = (${f.datatype()} *)dst; |
| %for (i, c) in enumerate(f.channels): |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| d[${i}] = ${c.name}; |
| %endfor |
| %elif f.layout == parser.PACKED: |
| ${f.datatype()} d = 0; |
| %for (i, c) in enumerate(f.channels): |
| %if c.type == 'x': |
| <% continue %> |
| %endif |
| d |= PACK(${c.name}, ${c.shift}, ${c.size}); |
| %endfor |
| (*(${f.datatype()} *)dst) = d; |
| %else: |
| <% assert False %> |
| %endif |
| } |
| %endfor |
| |
| static inline void |
| pack_float_r9g9b9e5_float(const GLfloat src[4], void *dst) |
| { |
| GLuint *d = (GLuint *) dst; |
| *d = float3_to_rgb9e5(src); |
| } |
| |
| static inline void |
| pack_float_r11g11b10_float(const GLfloat src[4], void *dst) |
| { |
| GLuint *d = (GLuint *) dst; |
| *d = float3_to_r11g11b10f(src); |
| } |
| |
| /** |
| * Return a function that can pack a GLubyte rgba[4] color. |
| */ |
| gl_pack_ubyte_rgba_func |
| _mesa_get_pack_ubyte_rgba_function(mesa_format format) |
| { |
| switch (format) { |
| %for f in rgb_formats: |
| %if f.is_compressed(): |
| <% continue %> |
| %endif |
| |
| case ${f.name}: |
| return pack_ubyte_${f.short_name()}; |
| %endfor |
| default: |
| return NULL; |
| } |
| } |
| |
| /** |
| * Return a function that can pack a GLfloat rgba[4] color. |
| */ |
| gl_pack_float_rgba_func |
| _mesa_get_pack_float_rgba_function(mesa_format format) |
| { |
| switch (format) { |
| %for f in rgb_formats: |
| %if f.is_compressed(): |
| <% continue %> |
| %elif f.is_int() and not f.is_normalized(): |
| <% continue %> |
| %endif |
| |
| case ${f.name}: |
| return pack_float_${f.short_name()}; |
| %endfor |
| default: |
| return NULL; |
| } |
| } |
| |
| /** |
| * Pack a row of GLubyte rgba[4] values to the destination. |
| */ |
| void |
| _mesa_pack_ubyte_rgba_row(mesa_format format, GLuint n, |
| const GLubyte src[][4], void *dst) |
| { |
| GLuint i; |
| GLubyte *d = dst; |
| |
| switch (format) { |
| %for f in rgb_formats: |
| %if f.is_compressed(): |
| <% continue %> |
| %endif |
| |
| case ${f.name}: |
| for (i = 0; i < n; ++i) { |
| pack_ubyte_${f.short_name()}(src[i], d); |
| d += ${f.block_size() / 8}; |
| } |
| break; |
| %endfor |
| default: |
| assert(!"Invalid format"); |
| } |
| } |
| |
| /** |
| * Pack a row of GLuint rgba[4] values to the destination. |
| */ |
| void |
| _mesa_pack_uint_rgba_row(mesa_format format, GLuint n, |
| const GLuint src[][4], void *dst) |
| { |
| GLuint i; |
| GLubyte *d = dst; |
| |
| switch (format) { |
| %for f in rgb_formats: |
| %if not f.is_int(): |
| <% continue %> |
| %elif f.is_normalized(): |
| <% continue %> |
| %elif f.is_compressed(): |
| <% continue %> |
| %endif |
| |
| case ${f.name}: |
| for (i = 0; i < n; ++i) { |
| pack_uint_${f.short_name()}(src[i], d); |
| d += ${f.block_size() / 8}; |
| } |
| break; |
| %endfor |
| default: |
| assert(!"Invalid format"); |
| } |
| } |
| |
| /** |
| * Pack a row of GLfloat rgba[4] values to the destination. |
| */ |
| void |
| _mesa_pack_float_rgba_row(mesa_format format, GLuint n, |
| const GLfloat src[][4], void *dst) |
| { |
| GLuint i; |
| GLubyte *d = dst; |
| |
| switch (format) { |
| %for f in rgb_formats: |
| %if f.is_compressed(): |
| <% continue %> |
| %elif f.is_int() and not f.is_normalized(): |
| <% continue %> |
| %endif |
| |
| case ${f.name}: |
| for (i = 0; i < n; ++i) { |
| pack_float_${f.short_name()}(src[i], d); |
| d += ${f.block_size() / 8}; |
| } |
| break; |
| %endfor |
| default: |
| assert(!"Invalid format"); |
| } |
| } |
| |
| /** |
| * Pack a 2D image of ubyte RGBA pixels in the given format. |
| * \param srcRowStride source image row stride in bytes |
| * \param dstRowStride destination image row stride in bytes |
| */ |
| void |
| _mesa_pack_ubyte_rgba_rect(mesa_format format, GLuint width, GLuint height, |
| const GLubyte *src, GLint srcRowStride, |
| void *dst, GLint dstRowStride) |
| { |
| GLubyte *dstUB = dst; |
| GLuint i; |
| |
| if (srcRowStride == width * 4 * sizeof(GLubyte) && |
| dstRowStride == _mesa_format_row_stride(format, width)) { |
| /* do whole image at once */ |
| _mesa_pack_ubyte_rgba_row(format, width * height, |
| (const GLubyte (*)[4]) src, dst); |
| } |
| else { |
| /* row by row */ |
| for (i = 0; i < height; i++) { |
| _mesa_pack_ubyte_rgba_row(format, width, |
| (const GLubyte (*)[4]) src, dstUB); |
| src += srcRowStride; |
| dstUB += dstRowStride; |
| } |
| } |
| } |
| |
| |
| /** Helper struct for MESA_FORMAT_Z32_FLOAT_S8X24_UINT */ |
| struct z32f_x24s8 |
| { |
| float z; |
| uint32_t x24s8; |
| }; |
| |
| |
| /** |
| ** Pack float Z pixels |
| **/ |
| |
| static void |
| pack_float_S8_UINT_Z24_UNORM(const GLfloat *src, void *dst) |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = (GLdouble) 0xffffff; |
| GLuint s = *d & 0xff; |
| GLuint z = (GLuint) (*src * scale); |
| assert(z <= 0xffffff); |
| *d = (z << 8) | s; |
| } |
| |
| static void |
| pack_float_Z24_UNORM_S8_UINT(const GLfloat *src, void *dst) |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = (GLdouble) 0xffffff; |
| GLuint s = *d & 0xff000000; |
| GLuint z = (GLuint) (*src * scale); |
| assert(z <= 0xffffff); |
| *d = s | z; |
| } |
| |
| static void |
| pack_float_Z_UNORM16(const GLfloat *src, void *dst) |
| { |
| GLushort *d = ((GLushort *) dst); |
| const GLfloat scale = (GLfloat) 0xffff; |
| *d = (GLushort) (*src * scale); |
| } |
| |
| static void |
| pack_float_Z_UNORM32(const GLfloat *src, void *dst) |
| { |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = (GLdouble) 0xffffffff; |
| *d = (GLuint) (*src * scale); |
| } |
| |
| static void |
| pack_float_Z_FLOAT32(const GLfloat *src, void *dst) |
| { |
| GLfloat *d = (GLfloat *) dst; |
| *d = *src; |
| } |
| |
| gl_pack_float_z_func |
| _mesa_get_pack_float_z_func(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| case MESA_FORMAT_X8_UINT_Z24_UNORM: |
| return pack_float_S8_UINT_Z24_UNORM; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| case MESA_FORMAT_Z24_UNORM_X8_UINT: |
| return pack_float_Z24_UNORM_S8_UINT; |
| case MESA_FORMAT_Z_UNORM16: |
| return pack_float_Z_UNORM16; |
| case MESA_FORMAT_Z_UNORM32: |
| return pack_float_Z_UNORM32; |
| case MESA_FORMAT_Z_FLOAT32: |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| return pack_float_Z_FLOAT32; |
| default: |
| _mesa_problem(NULL, |
| "unexpected format in _mesa_get_pack_float_z_func()"); |
| return NULL; |
| } |
| } |
| |
| |
| |
| /** |
| ** Pack uint Z pixels. The incoming src value is always in |
| ** the range [0, 2^32-1]. |
| **/ |
| |
| static void |
| pack_uint_S8_UINT_Z24_UNORM(const GLuint *src, void *dst) |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint s = *d & 0xff; |
| GLuint z = *src & 0xffffff00; |
| *d = z | s; |
| } |
| |
| static void |
| pack_uint_Z24_UNORM_S8_UINT(const GLuint *src, void *dst) |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint s = *d & 0xff000000; |
| GLuint z = *src >> 8; |
| *d = s | z; |
| } |
| |
| static void |
| pack_uint_Z_UNORM16(const GLuint *src, void *dst) |
| { |
| GLushort *d = ((GLushort *) dst); |
| *d = *src >> 16; |
| } |
| |
| static void |
| pack_uint_Z_UNORM32(const GLuint *src, void *dst) |
| { |
| GLuint *d = ((GLuint *) dst); |
| *d = *src; |
| } |
| |
| static void |
| pack_uint_Z_FLOAT32(const GLuint *src, void *dst) |
| { |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; |
| *d = (GLuint) (*src * scale); |
| assert(*d >= 0.0f); |
| assert(*d <= 1.0f); |
| } |
| |
| static void |
| pack_uint_Z_FLOAT32_X24S8(const GLuint *src, void *dst) |
| { |
| GLfloat *d = ((GLfloat *) dst); |
| const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; |
| *d = (GLfloat) (*src * scale); |
| assert(*d >= 0.0f); |
| assert(*d <= 1.0f); |
| } |
| |
| gl_pack_uint_z_func |
| _mesa_get_pack_uint_z_func(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| case MESA_FORMAT_X8_UINT_Z24_UNORM: |
| return pack_uint_S8_UINT_Z24_UNORM; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| case MESA_FORMAT_Z24_UNORM_X8_UINT: |
| return pack_uint_Z24_UNORM_S8_UINT; |
| case MESA_FORMAT_Z_UNORM16: |
| return pack_uint_Z_UNORM16; |
| case MESA_FORMAT_Z_UNORM32: |
| return pack_uint_Z_UNORM32; |
| case MESA_FORMAT_Z_FLOAT32: |
| return pack_uint_Z_FLOAT32; |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| return pack_uint_Z_FLOAT32_X24S8; |
| default: |
| _mesa_problem(NULL, "unexpected format in _mesa_get_pack_uint_z_func()"); |
| return NULL; |
| } |
| } |
| |
| |
| /** |
| ** Pack ubyte stencil pixels |
| **/ |
| |
| static void |
| pack_ubyte_stencil_Z24_S8(const GLubyte *src, void *dst) |
| { |
| /* don't disturb the Z values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint s = *src; |
| GLuint z = *d & 0xffffff00; |
| *d = z | s; |
| } |
| |
| static void |
| pack_ubyte_stencil_S8_Z24(const GLubyte *src, void *dst) |
| { |
| /* don't disturb the Z values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint s = *src << 24; |
| GLuint z = *d & 0xffffff; |
| *d = s | z; |
| } |
| |
| static void |
| pack_ubyte_stencil_S8(const GLubyte *src, void *dst) |
| { |
| GLubyte *d = (GLubyte *) dst; |
| *d = *src; |
| } |
| |
| static void |
| pack_ubyte_stencil_Z32_FLOAT_X24S8(const GLubyte *src, void *dst) |
| { |
| GLfloat *d = ((GLfloat *) dst); |
| d[1] = *src; |
| } |
| |
| |
| gl_pack_ubyte_stencil_func |
| _mesa_get_pack_ubyte_stencil_func(mesa_format format) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| return pack_ubyte_stencil_Z24_S8; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| return pack_ubyte_stencil_S8_Z24; |
| case MESA_FORMAT_S_UINT8: |
| return pack_ubyte_stencil_S8; |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| return pack_ubyte_stencil_Z32_FLOAT_X24S8; |
| default: |
| _mesa_problem(NULL, |
| "unexpected format in _mesa_pack_ubyte_stencil_func()"); |
| return NULL; |
| } |
| } |
| |
| |
| |
| void |
| _mesa_pack_float_z_row(mesa_format format, GLuint n, |
| const GLfloat *src, void *dst) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| case MESA_FORMAT_X8_UINT_Z24_UNORM: |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = (GLdouble) 0xffffff; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = d[i] & 0xff; |
| GLuint z = (GLuint) (src[i] * scale); |
| assert(z <= 0xffffff); |
| d[i] = (z << 8) | s; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| case MESA_FORMAT_Z24_UNORM_X8_UINT: |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = (GLdouble) 0xffffff; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = d[i] & 0xff000000; |
| GLuint z = (GLuint) (src[i] * scale); |
| assert(z <= 0xffffff); |
| d[i] = s | z; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z_UNORM16: |
| { |
| GLushort *d = ((GLushort *) dst); |
| const GLfloat scale = (GLfloat) 0xffff; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i] = (GLushort) (src[i] * scale); |
| } |
| } |
| break; |
| case MESA_FORMAT_Z_UNORM32: |
| { |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = (GLdouble) 0xffffffff; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i] = (GLuint) (src[i] * scale); |
| } |
| } |
| break; |
| case MESA_FORMAT_Z_FLOAT32: |
| memcpy(dst, src, n * sizeof(GLfloat)); |
| break; |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| { |
| struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i].z = src[i]; |
| } |
| } |
| break; |
| default: |
| _mesa_problem(NULL, "unexpected format in _mesa_pack_float_z_row()"); |
| } |
| } |
| |
| |
| /** |
| * The incoming Z values are always in the range [0, 0xffffffff]. |
| */ |
| void |
| _mesa_pack_uint_z_row(mesa_format format, GLuint n, |
| const GLuint *src, void *dst) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| case MESA_FORMAT_X8_UINT_Z24_UNORM: |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = d[i] & 0xff; |
| GLuint z = src[i] & 0xffffff00; |
| d[i] = z | s; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| case MESA_FORMAT_Z24_UNORM_X8_UINT: |
| { |
| /* don't disturb the stencil values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = d[i] & 0xff000000; |
| GLuint z = src[i] >> 8; |
| d[i] = s | z; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z_UNORM16: |
| { |
| GLushort *d = ((GLushort *) dst); |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i] = src[i] >> 16; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z_UNORM32: |
| memcpy(dst, src, n * sizeof(GLfloat)); |
| break; |
| case MESA_FORMAT_Z_FLOAT32: |
| { |
| GLuint *d = ((GLuint *) dst); |
| const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i] = (GLuint) (src[i] * scale); |
| assert(d[i] >= 0.0f); |
| assert(d[i] <= 1.0f); |
| } |
| } |
| break; |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| { |
| struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; |
| const GLdouble scale = 1.0 / (GLdouble) 0xffffffff; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i].z = (GLfloat) (src[i] * scale); |
| assert(d[i].z >= 0.0f); |
| assert(d[i].z <= 1.0f); |
| } |
| } |
| break; |
| default: |
| _mesa_problem(NULL, "unexpected format in _mesa_pack_uint_z_row()"); |
| } |
| } |
| |
| |
| void |
| _mesa_pack_ubyte_stencil_row(mesa_format format, GLuint n, |
| const GLubyte *src, void *dst) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| { |
| /* don't disturb the Z values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = src[i]; |
| GLuint z = d[i] & 0xffffff00; |
| d[i] = z | s; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| { |
| /* don't disturb the Z values */ |
| GLuint *d = ((GLuint *) dst); |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = src[i] << 24; |
| GLuint z = d[i] & 0xffffff; |
| d[i] = s | z; |
| } |
| } |
| break; |
| case MESA_FORMAT_S_UINT8: |
| memcpy(dst, src, n * sizeof(GLubyte)); |
| break; |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| { |
| struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| d[i].x24s8 = src[i]; |
| } |
| } |
| break; |
| default: |
| _mesa_problem(NULL, "unexpected format in _mesa_pack_ubyte_stencil_row()"); |
| } |
| } |
| |
| |
| /** |
| * Incoming Z/stencil values are always in uint_24_8 format. |
| */ |
| void |
| _mesa_pack_uint_24_8_depth_stencil_row(mesa_format format, GLuint n, |
| const GLuint *src, void *dst) |
| { |
| switch (format) { |
| case MESA_FORMAT_S8_UINT_Z24_UNORM: |
| memcpy(dst, src, n * sizeof(GLuint)); |
| break; |
| case MESA_FORMAT_Z24_UNORM_S8_UINT: |
| { |
| GLuint *d = ((GLuint *) dst); |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLuint s = src[i] << 24; |
| GLuint z = src[i] >> 8; |
| d[i] = s | z; |
| } |
| } |
| break; |
| case MESA_FORMAT_Z32_FLOAT_S8X24_UINT: |
| { |
| const GLdouble scale = 1.0 / (GLdouble) 0xffffff; |
| struct z32f_x24s8 *d = (struct z32f_x24s8 *) dst; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| GLfloat z = (GLfloat) ((src[i] >> 8) * scale); |
| d[i].z = z; |
| d[i].x24s8 = src[i]; |
| } |
| } |
| break; |
| default: |
| _mesa_problem(NULL, "bad format %s in _mesa_pack_ubyte_s_row", |
| _mesa_get_format_name(format)); |
| return; |
| } |
| } |
| |
| |
| |
| /** |
| * Convert a boolean color mask to a packed color where each channel of |
| * the packed value at dst will be 0 or ~0 depending on the colorMask. |
| */ |
| void |
| _mesa_pack_colormask(mesa_format format, const GLubyte colorMask[4], void *dst) |
| { |
| GLfloat maskColor[4]; |
| |
| switch (_mesa_get_format_datatype(format)) { |
| case GL_UNSIGNED_NORMALIZED: |
| /* simple: 1.0 will convert to ~0 in the right bit positions */ |
| maskColor[0] = colorMask[0] ? 1.0f : 0.0f; |
| maskColor[1] = colorMask[1] ? 1.0f : 0.0f; |
| maskColor[2] = colorMask[2] ? 1.0f : 0.0f; |
| maskColor[3] = colorMask[3] ? 1.0f : 0.0f; |
| _mesa_pack_float_rgba_row(format, 1, |
| (const GLfloat (*)[4]) maskColor, dst); |
| break; |
| case GL_SIGNED_NORMALIZED: |
| case GL_FLOAT: |
| /* These formats are harder because it's hard to know the floating |
| * point values that will convert to ~0 for each color channel's bits. |
| * This solution just generates a non-zero value for each color channel |
| * then fixes up the non-zero values to be ~0. |
| * Note: we'll need to add special case code if we ever have to deal |
| * with formats with unequal color channel sizes, like R11_G11_B10. |
| * We issue a warning below for channel sizes other than 8,16,32. |
| */ |
| { |
| GLuint bits = _mesa_get_format_max_bits(format); /* bits per chan */ |
| GLuint bytes = _mesa_get_format_bytes(format); |
| GLuint i; |
| |
| /* this should put non-zero values into the channels of dst */ |
| maskColor[0] = colorMask[0] ? -1.0f : 0.0f; |
| maskColor[1] = colorMask[1] ? -1.0f : 0.0f; |
| maskColor[2] = colorMask[2] ? -1.0f : 0.0f; |
| maskColor[3] = colorMask[3] ? -1.0f : 0.0f; |
| _mesa_pack_float_rgba_row(format, 1, |
| (const GLfloat (*)[4]) maskColor, dst); |
| |
| /* fix-up the dst channels by converting non-zero values to ~0 */ |
| if (bits == 8) { |
| GLubyte *d = (GLubyte *) dst; |
| for (i = 0; i < bytes; i++) { |
| d[i] = d[i] ? 0xff : 0x0; |
| } |
| } |
| else if (bits == 16) { |
| GLushort *d = (GLushort *) dst; |
| for (i = 0; i < bytes / 2; i++) { |
| d[i] = d[i] ? 0xffff : 0x0; |
| } |
| } |
| else if (bits == 32) { |
| GLuint *d = (GLuint *) dst; |
| for (i = 0; i < bytes / 4; i++) { |
| d[i] = d[i] ? 0xffffffffU : 0x0; |
| } |
| } |
| else { |
| _mesa_problem(NULL, "unexpected size in _mesa_pack_colormask()"); |
| return; |
| } |
| } |
| break; |
| default: |
| _mesa_problem(NULL, "unexpected format data type in gen_color_mask()"); |
| return; |
| } |
| } |
| """ |
| |
| template = Template(string); |
| |
| print template.render(argv = argv[0:]) |
