| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
| * |
| * 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. |
| */ |
| |
| |
| /** |
| * \file mipmap.c mipmap generation and teximage resizing functions. |
| */ |
| |
| #include "imports.h" |
| #include "formats.h" |
| #include "glformats.h" |
| #include "mipmap.h" |
| #include "mtypes.h" |
| #include "teximage.h" |
| #include "texobj.h" |
| #include "texstore.h" |
| #include "image.h" |
| #include "macros.h" |
| #include "../../gallium/auxiliary/util/u_format_rgb9e5.h" |
| #include "../../gallium/auxiliary/util/u_format_r11g11b10f.h" |
| |
| |
| |
| static GLint |
| bytes_per_pixel(GLenum datatype, GLuint comps) |
| { |
| GLint b; |
| |
| if (datatype == GL_UNSIGNED_INT_8_24_REV_MESA || |
| datatype == GL_UNSIGNED_INT_24_8_MESA) |
| return 4; |
| |
| b = _mesa_sizeof_packed_type(datatype); |
| assert(b >= 0); |
| |
| if (_mesa_type_is_packed(datatype)) |
| return b; |
| else |
| return b * comps; |
| } |
| |
| |
| /** |
| * \name Support macros for do_row and do_row_3d |
| * |
| * The macro madness is here for two reasons. First, it compacts the code |
| * slightly. Second, it makes it much easier to adjust the specifics of the |
| * filter to tune the rounding characteristics. |
| */ |
| /*@{*/ |
| #define DECLARE_ROW_POINTERS(t, e) \ |
| const t(*rowA)[e] = (const t(*)[e]) srcRowA; \ |
| const t(*rowB)[e] = (const t(*)[e]) srcRowB; \ |
| const t(*rowC)[e] = (const t(*)[e]) srcRowC; \ |
| const t(*rowD)[e] = (const t(*)[e]) srcRowD; \ |
| t(*dst)[e] = (t(*)[e]) dstRow |
| |
| #define DECLARE_ROW_POINTERS0(t) \ |
| const t *rowA = (const t *) srcRowA; \ |
| const t *rowB = (const t *) srcRowB; \ |
| const t *rowC = (const t *) srcRowC; \ |
| const t *rowD = (const t *) srcRowD; \ |
| t *dst = (t *) dstRow |
| |
| #define FILTER_SUM_3D(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \ |
| ((unsigned) Aj + (unsigned) Ak \ |
| + (unsigned) Bj + (unsigned) Bk \ |
| + (unsigned) Cj + (unsigned) Ck \ |
| + (unsigned) Dj + (unsigned) Dk \ |
| + 4) >> 3 |
| |
| #define FILTER_3D(e) \ |
| do { \ |
| dst[i][e] = FILTER_SUM_3D(rowA[j][e], rowA[k][e], \ |
| rowB[j][e], rowB[k][e], \ |
| rowC[j][e], rowC[k][e], \ |
| rowD[j][e], rowD[k][e]); \ |
| } while(0) |
| |
| #define FILTER_SUM_3D_SIGNED(Aj, Ak, Bj, Bk, Cj, Ck, Dj, Dk) \ |
| (Aj + Ak \ |
| + Bj + Bk \ |
| + Cj + Ck \ |
| + Dj + Dk \ |
| + 4) / 8 |
| |
| #define FILTER_3D_SIGNED(e) \ |
| do { \ |
| dst[i][e] = FILTER_SUM_3D_SIGNED(rowA[j][e], rowA[k][e], \ |
| rowB[j][e], rowB[k][e], \ |
| rowC[j][e], rowC[k][e], \ |
| rowD[j][e], rowD[k][e]); \ |
| } while(0) |
| |
| #define FILTER_F_3D(e) \ |
| do { \ |
| dst[i][e] = (rowA[j][e] + rowA[k][e] \ |
| + rowB[j][e] + rowB[k][e] \ |
| + rowC[j][e] + rowC[k][e] \ |
| + rowD[j][e] + rowD[k][e]) * 0.125F; \ |
| } while(0) |
| |
| #define FILTER_HF_3D(e) \ |
| do { \ |
| const GLfloat aj = _mesa_half_to_float(rowA[j][e]); \ |
| const GLfloat ak = _mesa_half_to_float(rowA[k][e]); \ |
| const GLfloat bj = _mesa_half_to_float(rowB[j][e]); \ |
| const GLfloat bk = _mesa_half_to_float(rowB[k][e]); \ |
| const GLfloat cj = _mesa_half_to_float(rowC[j][e]); \ |
| const GLfloat ck = _mesa_half_to_float(rowC[k][e]); \ |
| const GLfloat dj = _mesa_half_to_float(rowD[j][e]); \ |
| const GLfloat dk = _mesa_half_to_float(rowD[k][e]); \ |
| dst[i][e] = _mesa_float_to_half((aj + ak + bj + bk + cj + ck + dj + dk) \ |
| * 0.125F); \ |
| } while(0) |
| /*@}*/ |
| |
| |
| /** |
| * Average together two rows of a source image to produce a single new |
| * row in the dest image. It's legal for the two source rows to point |
| * to the same data. The source width must be equal to either the |
| * dest width or two times the dest width. |
| * \param datatype GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_FLOAT, etc. |
| * \param comps number of components per pixel (1..4) |
| */ |
| static void |
| do_row(GLenum datatype, GLuint comps, GLint srcWidth, |
| const GLvoid *srcRowA, const GLvoid *srcRowB, |
| GLint dstWidth, GLvoid *dstRow) |
| { |
| const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1; |
| const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2; |
| |
| ASSERT(comps >= 1); |
| ASSERT(comps <= 4); |
| |
| /* This assertion is no longer valid with non-power-of-2 textures |
| assert(srcWidth == dstWidth || srcWidth == 2 * dstWidth); |
| */ |
| |
| if (datatype == GL_UNSIGNED_BYTE && comps == 4) { |
| GLuint i, j, k; |
| const GLubyte(*rowA)[4] = (const GLubyte(*)[4]) srcRowA; |
| const GLubyte(*rowB)[4] = (const GLubyte(*)[4]) srcRowB; |
| GLubyte(*dst)[4] = (GLubyte(*)[4]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_BYTE && comps == 3) { |
| GLuint i, j, k; |
| const GLubyte(*rowA)[3] = (const GLubyte(*)[3]) srcRowA; |
| const GLubyte(*rowB)[3] = (const GLubyte(*)[3]) srcRowB; |
| GLubyte(*dst)[3] = (GLubyte(*)[3]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_BYTE && comps == 2) { |
| GLuint i, j, k; |
| const GLubyte(*rowA)[2] = (const GLubyte(*)[2]) srcRowA; |
| const GLubyte(*rowB)[2] = (const GLubyte(*)[2]) srcRowB; |
| GLubyte(*dst)[2] = (GLubyte(*)[2]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) >> 2; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) >> 2; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_BYTE && comps == 1) { |
| GLuint i, j, k; |
| const GLubyte *rowA = (const GLubyte *) srcRowA; |
| const GLubyte *rowB = (const GLubyte *) srcRowB; |
| GLubyte *dst = (GLubyte *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2; |
| } |
| } |
| |
| else if (datatype == GL_BYTE && comps == 4) { |
| GLuint i, j, k; |
| const GLbyte(*rowA)[4] = (const GLbyte(*)[4]) srcRowA; |
| const GLbyte(*rowB)[4] = (const GLbyte(*)[4]) srcRowB; |
| GLbyte(*dst)[4] = (GLbyte(*)[4]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; |
| } |
| } |
| else if (datatype == GL_BYTE && comps == 3) { |
| GLuint i, j, k; |
| const GLbyte(*rowA)[3] = (const GLbyte(*)[3]) srcRowA; |
| const GLbyte(*rowB)[3] = (const GLbyte(*)[3]) srcRowB; |
| GLbyte(*dst)[3] = (GLbyte(*)[3]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| } |
| } |
| else if (datatype == GL_BYTE && comps == 2) { |
| GLuint i, j, k; |
| const GLbyte(*rowA)[2] = (const GLbyte(*)[2]) srcRowA; |
| const GLbyte(*rowB)[2] = (const GLbyte(*)[2]) srcRowB; |
| GLbyte(*dst)[2] = (GLbyte(*)[2]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| } |
| } |
| else if (datatype == GL_BYTE && comps == 1) { |
| GLuint i, j, k; |
| const GLbyte *rowA = (const GLbyte *) srcRowA; |
| const GLbyte *rowB = (const GLbyte *) srcRowB; |
| GLbyte *dst = (GLbyte *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_SHORT && comps == 4) { |
| GLuint i, j, k; |
| const GLushort(*rowA)[4] = (const GLushort(*)[4]) srcRowA; |
| const GLushort(*rowB)[4] = (const GLushort(*)[4]) srcRowB; |
| GLushort(*dst)[4] = (GLushort(*)[4]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_SHORT && comps == 3) { |
| GLuint i, j, k; |
| const GLushort(*rowA)[3] = (const GLushort(*)[3]) srcRowA; |
| const GLushort(*rowB)[3] = (const GLushort(*)[3]) srcRowB; |
| GLushort(*dst)[3] = (GLushort(*)[3]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_SHORT && comps == 2) { |
| GLuint i, j, k; |
| const GLushort(*rowA)[2] = (const GLushort(*)[2]) srcRowA; |
| const GLushort(*rowB)[2] = (const GLushort(*)[2]) srcRowB; |
| GLushort(*dst)[2] = (GLushort(*)[2]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_SHORT && comps == 1) { |
| GLuint i, j, k; |
| const GLushort *rowA = (const GLushort *) srcRowA; |
| const GLushort *rowB = (const GLushort *) srcRowB; |
| GLushort *dst = (GLushort *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; |
| } |
| } |
| |
| else if (datatype == GL_SHORT && comps == 4) { |
| GLuint i, j, k; |
| const GLshort(*rowA)[4] = (const GLshort(*)[4]) srcRowA; |
| const GLshort(*rowB)[4] = (const GLshort(*)[4]) srcRowB; |
| GLshort(*dst)[4] = (GLshort(*)[4]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| dst[i][3] = (rowA[j][3] + rowA[k][3] + rowB[j][3] + rowB[k][3]) / 4; |
| } |
| } |
| else if (datatype == GL_SHORT && comps == 3) { |
| GLuint i, j, k; |
| const GLshort(*rowA)[3] = (const GLshort(*)[3]) srcRowA; |
| const GLshort(*rowB)[3] = (const GLshort(*)[3]) srcRowB; |
| GLshort(*dst)[3] = (GLshort(*)[3]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + rowB[j][2] + rowB[k][2]) / 4; |
| } |
| } |
| else if (datatype == GL_SHORT && comps == 2) { |
| GLuint i, j, k; |
| const GLshort(*rowA)[2] = (const GLshort(*)[2]) srcRowA; |
| const GLshort(*rowB)[2] = (const GLshort(*)[2]) srcRowB; |
| GLshort(*dst)[2] = (GLshort(*)[2]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + rowB[j][0] + rowB[k][0]) / 4; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + rowB[j][1] + rowB[k][1]) / 4; |
| } |
| } |
| else if (datatype == GL_SHORT && comps == 1) { |
| GLuint i, j, k; |
| const GLshort *rowA = (const GLshort *) srcRowA; |
| const GLshort *rowB = (const GLshort *) srcRowB; |
| GLshort *dst = (GLshort *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4; |
| } |
| } |
| |
| else if (datatype == GL_FLOAT && comps == 4) { |
| GLuint i, j, k; |
| const GLfloat(*rowA)[4] = (const GLfloat(*)[4]) srcRowA; |
| const GLfloat(*rowB)[4] = (const GLfloat(*)[4]) srcRowB; |
| GLfloat(*dst)[4] = (GLfloat(*)[4]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + |
| rowB[j][0] + rowB[k][0]) * 0.25F; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + |
| rowB[j][1] + rowB[k][1]) * 0.25F; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + |
| rowB[j][2] + rowB[k][2]) * 0.25F; |
| dst[i][3] = (rowA[j][3] + rowA[k][3] + |
| rowB[j][3] + rowB[k][3]) * 0.25F; |
| } |
| } |
| else if (datatype == GL_FLOAT && comps == 3) { |
| GLuint i, j, k; |
| const GLfloat(*rowA)[3] = (const GLfloat(*)[3]) srcRowA; |
| const GLfloat(*rowB)[3] = (const GLfloat(*)[3]) srcRowB; |
| GLfloat(*dst)[3] = (GLfloat(*)[3]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + |
| rowB[j][0] + rowB[k][0]) * 0.25F; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + |
| rowB[j][1] + rowB[k][1]) * 0.25F; |
| dst[i][2] = (rowA[j][2] + rowA[k][2] + |
| rowB[j][2] + rowB[k][2]) * 0.25F; |
| } |
| } |
| else if (datatype == GL_FLOAT && comps == 2) { |
| GLuint i, j, k; |
| const GLfloat(*rowA)[2] = (const GLfloat(*)[2]) srcRowA; |
| const GLfloat(*rowB)[2] = (const GLfloat(*)[2]) srcRowB; |
| GLfloat(*dst)[2] = (GLfloat(*)[2]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i][0] = (rowA[j][0] + rowA[k][0] + |
| rowB[j][0] + rowB[k][0]) * 0.25F; |
| dst[i][1] = (rowA[j][1] + rowA[k][1] + |
| rowB[j][1] + rowB[k][1]) * 0.25F; |
| } |
| } |
| else if (datatype == GL_FLOAT && comps == 1) { |
| GLuint i, j, k; |
| const GLfloat *rowA = (const GLfloat *) srcRowA; |
| const GLfloat *rowB = (const GLfloat *) srcRowB; |
| GLfloat *dst = (GLfloat *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F; |
| } |
| } |
| |
| else if (datatype == GL_HALF_FLOAT_ARB && comps == 4) { |
| GLuint i, j, k, comp; |
| const GLhalfARB(*rowA)[4] = (const GLhalfARB(*)[4]) srcRowA; |
| const GLhalfARB(*rowB)[4] = (const GLhalfARB(*)[4]) srcRowB; |
| GLhalfARB(*dst)[4] = (GLhalfARB(*)[4]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| for (comp = 0; comp < 4; comp++) { |
| GLfloat aj, ak, bj, bk; |
| aj = _mesa_half_to_float(rowA[j][comp]); |
| ak = _mesa_half_to_float(rowA[k][comp]); |
| bj = _mesa_half_to_float(rowB[j][comp]); |
| bk = _mesa_half_to_float(rowB[k][comp]); |
| dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); |
| } |
| } |
| } |
| else if (datatype == GL_HALF_FLOAT_ARB && comps == 3) { |
| GLuint i, j, k, comp; |
| const GLhalfARB(*rowA)[3] = (const GLhalfARB(*)[3]) srcRowA; |
| const GLhalfARB(*rowB)[3] = (const GLhalfARB(*)[3]) srcRowB; |
| GLhalfARB(*dst)[3] = (GLhalfARB(*)[3]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| for (comp = 0; comp < 3; comp++) { |
| GLfloat aj, ak, bj, bk; |
| aj = _mesa_half_to_float(rowA[j][comp]); |
| ak = _mesa_half_to_float(rowA[k][comp]); |
| bj = _mesa_half_to_float(rowB[j][comp]); |
| bk = _mesa_half_to_float(rowB[k][comp]); |
| dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); |
| } |
| } |
| } |
| else if (datatype == GL_HALF_FLOAT_ARB && comps == 2) { |
| GLuint i, j, k, comp; |
| const GLhalfARB(*rowA)[2] = (const GLhalfARB(*)[2]) srcRowA; |
| const GLhalfARB(*rowB)[2] = (const GLhalfARB(*)[2]) srcRowB; |
| GLhalfARB(*dst)[2] = (GLhalfARB(*)[2]) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| for (comp = 0; comp < 2; comp++) { |
| GLfloat aj, ak, bj, bk; |
| aj = _mesa_half_to_float(rowA[j][comp]); |
| ak = _mesa_half_to_float(rowA[k][comp]); |
| bj = _mesa_half_to_float(rowB[j][comp]); |
| bk = _mesa_half_to_float(rowB[k][comp]); |
| dst[i][comp] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); |
| } |
| } |
| } |
| else if (datatype == GL_HALF_FLOAT_ARB && comps == 1) { |
| GLuint i, j, k; |
| const GLhalfARB *rowA = (const GLhalfARB *) srcRowA; |
| const GLhalfARB *rowB = (const GLhalfARB *) srcRowB; |
| GLhalfARB *dst = (GLhalfARB *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| GLfloat aj, ak, bj, bk; |
| aj = _mesa_half_to_float(rowA[j]); |
| ak = _mesa_half_to_float(rowA[k]); |
| bj = _mesa_half_to_float(rowB[j]); |
| bk = _mesa_half_to_float(rowB[k]); |
| dst[i] = _mesa_float_to_half((aj + ak + bj + bk) * 0.25F); |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT && comps == 1) { |
| GLuint i, j, k; |
| const GLuint *rowA = (const GLuint *) srcRowA; |
| const GLuint *rowB = (const GLuint *) srcRowB; |
| GLuint *dst = (GLuint *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i] = rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_SHORT_5_6_5 && comps == 3) { |
| GLuint i, j, k; |
| const GLushort *rowA = (const GLushort *) srcRowA; |
| const GLushort *rowB = (const GLushort *) srcRowB; |
| GLushort *dst = (GLushort *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x1f; |
| const GLint rowAr1 = rowA[k] & 0x1f; |
| const GLint rowBr0 = rowB[j] & 0x1f; |
| const GLint rowBr1 = rowB[k] & 0x1f; |
| const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; |
| const GLint rowAg1 = (rowA[k] >> 5) & 0x3f; |
| const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; |
| const GLint rowBg1 = (rowB[k] >> 5) & 0x3f; |
| const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; |
| const GLint rowAb1 = (rowA[k] >> 11) & 0x1f; |
| const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; |
| const GLint rowBb1 = (rowB[k] >> 11) & 0x1f; |
| const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; |
| dst[i] = (blue << 11) | (green << 5) | red; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_SHORT_4_4_4_4 && comps == 4) { |
| GLuint i, j, k; |
| const GLushort *rowA = (const GLushort *) srcRowA; |
| const GLushort *rowB = (const GLushort *) srcRowB; |
| GLushort *dst = (GLushort *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0xf; |
| const GLint rowAr1 = rowA[k] & 0xf; |
| const GLint rowBr0 = rowB[j] & 0xf; |
| const GLint rowBr1 = rowB[k] & 0xf; |
| const GLint rowAg0 = (rowA[j] >> 4) & 0xf; |
| const GLint rowAg1 = (rowA[k] >> 4) & 0xf; |
| const GLint rowBg0 = (rowB[j] >> 4) & 0xf; |
| const GLint rowBg1 = (rowB[k] >> 4) & 0xf; |
| const GLint rowAb0 = (rowA[j] >> 8) & 0xf; |
| const GLint rowAb1 = (rowA[k] >> 8) & 0xf; |
| const GLint rowBb0 = (rowB[j] >> 8) & 0xf; |
| const GLint rowBb1 = (rowB[k] >> 8) & 0xf; |
| const GLint rowAa0 = (rowA[j] >> 12) & 0xf; |
| const GLint rowAa1 = (rowA[k] >> 12) & 0xf; |
| const GLint rowBa0 = (rowB[j] >> 12) & 0xf; |
| const GLint rowBa1 = (rowB[k] >> 12) & 0xf; |
| const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; |
| const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; |
| dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_SHORT_1_5_5_5_REV && comps == 4) { |
| GLuint i, j, k; |
| const GLushort *rowA = (const GLushort *) srcRowA; |
| const GLushort *rowB = (const GLushort *) srcRowB; |
| GLushort *dst = (GLushort *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x1f; |
| const GLint rowAr1 = rowA[k] & 0x1f; |
| const GLint rowBr0 = rowB[j] & 0x1f; |
| const GLint rowBr1 = rowB[k] & 0x1f; |
| const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; |
| const GLint rowAg1 = (rowA[k] >> 5) & 0x1f; |
| const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; |
| const GLint rowBg1 = (rowB[k] >> 5) & 0x1f; |
| const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; |
| const GLint rowAb1 = (rowA[k] >> 10) & 0x1f; |
| const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; |
| const GLint rowBb1 = (rowB[k] >> 10) & 0x1f; |
| const GLint rowAa0 = (rowA[j] >> 15) & 0x1; |
| const GLint rowAa1 = (rowA[k] >> 15) & 0x1; |
| const GLint rowBa0 = (rowB[j] >> 15) & 0x1; |
| const GLint rowBa1 = (rowB[k] >> 15) & 0x1; |
| const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; |
| const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; |
| dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_SHORT_5_5_5_1 && comps == 4) { |
| GLuint i, j, k; |
| const GLushort *rowA = (const GLushort *) srcRowA; |
| const GLushort *rowB = (const GLushort *) srcRowB; |
| GLushort *dst = (GLushort *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = (rowA[j] >> 11) & 0x1f; |
| const GLint rowAr1 = (rowA[k] >> 11) & 0x1f; |
| const GLint rowBr0 = (rowB[j] >> 11) & 0x1f; |
| const GLint rowBr1 = (rowB[k] >> 11) & 0x1f; |
| const GLint rowAg0 = (rowA[j] >> 6) & 0x1f; |
| const GLint rowAg1 = (rowA[k] >> 6) & 0x1f; |
| const GLint rowBg0 = (rowB[j] >> 6) & 0x1f; |
| const GLint rowBg1 = (rowB[k] >> 6) & 0x1f; |
| const GLint rowAb0 = (rowA[j] >> 1) & 0x1f; |
| const GLint rowAb1 = (rowA[k] >> 1) & 0x1f; |
| const GLint rowBb0 = (rowB[j] >> 1) & 0x1f; |
| const GLint rowBb1 = (rowB[k] >> 1) & 0x1f; |
| const GLint rowAa0 = (rowA[j] & 0x1); |
| const GLint rowAa1 = (rowA[k] & 0x1); |
| const GLint rowBa0 = (rowB[j] & 0x1); |
| const GLint rowBa1 = (rowB[k] & 0x1); |
| const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; |
| const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; |
| dst[i] = (red << 11) | (green << 6) | (blue << 1) | alpha; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_BYTE_3_3_2 && comps == 3) { |
| GLuint i, j, k; |
| const GLubyte *rowA = (const GLubyte *) srcRowA; |
| const GLubyte *rowB = (const GLubyte *) srcRowB; |
| GLubyte *dst = (GLubyte *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x3; |
| const GLint rowAr1 = rowA[k] & 0x3; |
| const GLint rowBr0 = rowB[j] & 0x3; |
| const GLint rowBr1 = rowB[k] & 0x3; |
| const GLint rowAg0 = (rowA[j] >> 2) & 0x7; |
| const GLint rowAg1 = (rowA[k] >> 2) & 0x7; |
| const GLint rowBg0 = (rowB[j] >> 2) & 0x7; |
| const GLint rowBg1 = (rowB[k] >> 2) & 0x7; |
| const GLint rowAb0 = (rowA[j] >> 5) & 0x7; |
| const GLint rowAb1 = (rowA[k] >> 5) & 0x7; |
| const GLint rowBb0 = (rowB[j] >> 5) & 0x7; |
| const GLint rowBb1 = (rowB[k] >> 5) & 0x7; |
| const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; |
| dst[i] = (blue << 5) | (green << 2) | red; |
| } |
| } |
| |
| else if (datatype == MESA_UNSIGNED_BYTE_4_4 && comps == 2) { |
| GLuint i, j, k; |
| const GLubyte *rowA = (const GLubyte *) srcRowA; |
| const GLubyte *rowB = (const GLubyte *) srcRowB; |
| GLubyte *dst = (GLubyte *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0xf; |
| const GLint rowAr1 = rowA[k] & 0xf; |
| const GLint rowBr0 = rowB[j] & 0xf; |
| const GLint rowBr1 = rowB[k] & 0xf; |
| const GLint rowAg0 = (rowA[j] >> 4) & 0xf; |
| const GLint rowAg1 = (rowA[k] >> 4) & 0xf; |
| const GLint rowBg0 = (rowB[j] >> 4) & 0xf; |
| const GLint rowBg1 = (rowB[k] >> 4) & 0xf; |
| const GLint r = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint g = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| dst[i] = (g << 4) | r; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT_2_10_10_10_REV && comps == 4) { |
| GLuint i, j, k; |
| const GLuint *rowA = (const GLuint *) srcRowA; |
| const GLuint *rowB = (const GLuint *) srcRowB; |
| GLuint *dst = (GLuint *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x3ff; |
| const GLint rowAr1 = rowA[k] & 0x3ff; |
| const GLint rowBr0 = rowB[j] & 0x3ff; |
| const GLint rowBr1 = rowB[k] & 0x3ff; |
| const GLint rowAg0 = (rowA[j] >> 10) & 0x3ff; |
| const GLint rowAg1 = (rowA[k] >> 10) & 0x3ff; |
| const GLint rowBg0 = (rowB[j] >> 10) & 0x3ff; |
| const GLint rowBg1 = (rowB[k] >> 10) & 0x3ff; |
| const GLint rowAb0 = (rowA[j] >> 20) & 0x3ff; |
| const GLint rowAb1 = (rowA[k] >> 20) & 0x3ff; |
| const GLint rowBb0 = (rowB[j] >> 20) & 0x3ff; |
| const GLint rowBb1 = (rowB[k] >> 20) & 0x3ff; |
| const GLint rowAa0 = (rowA[j] >> 30) & 0x3; |
| const GLint rowAa1 = (rowA[k] >> 30) & 0x3; |
| const GLint rowBa0 = (rowB[j] >> 30) & 0x3; |
| const GLint rowBa1 = (rowB[k] >> 30) & 0x3; |
| const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2; |
| const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2; |
| const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2; |
| const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2; |
| dst[i] = (alpha << 30) | (blue << 20) | (green << 10) | red; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT_5_9_9_9_REV && comps == 3) { |
| GLuint i, j, k; |
| const GLuint *rowA = (const GLuint*) srcRowA; |
| const GLuint *rowB = (const GLuint*) srcRowB; |
| GLuint *dst = (GLuint*)dstRow; |
| GLfloat res[3], rowAj[3], rowBj[3], rowAk[3], rowBk[3]; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| rgb9e5_to_float3(rowA[j], rowAj); |
| rgb9e5_to_float3(rowB[j], rowBj); |
| rgb9e5_to_float3(rowA[k], rowAk); |
| rgb9e5_to_float3(rowB[k], rowBk); |
| res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0]) * 0.25F; |
| res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1]) * 0.25F; |
| res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2]) * 0.25F; |
| dst[i] = float3_to_rgb9e5(res); |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT_10F_11F_11F_REV && comps == 3) { |
| GLuint i, j, k; |
| const GLuint *rowA = (const GLuint*) srcRowA; |
| const GLuint *rowB = (const GLuint*) srcRowB; |
| GLuint *dst = (GLuint*)dstRow; |
| GLfloat res[3], rowAj[3], rowBj[3], rowAk[3], rowBk[3]; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| r11g11b10f_to_float3(rowA[j], rowAj); |
| r11g11b10f_to_float3(rowB[j], rowBj); |
| r11g11b10f_to_float3(rowA[k], rowAk); |
| r11g11b10f_to_float3(rowB[k], rowBk); |
| res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0]) * 0.25F; |
| res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1]) * 0.25F; |
| res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2]) * 0.25F; |
| dst[i] = float3_to_r11g11b10f(res); |
| } |
| } |
| |
| else if (datatype == GL_FLOAT_32_UNSIGNED_INT_24_8_REV && comps == 1) { |
| GLuint i, j, k; |
| const GLfloat *rowA = (const GLfloat *) srcRowA; |
| const GLfloat *rowB = (const GLfloat *) srcRowB; |
| GLfloat *dst = (GLfloat *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| dst[i*2] = (rowA[j*2] + rowA[k*2] + rowB[j*2] + rowB[k*2]) * 0.25F; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT_24_8_MESA && comps == 2) { |
| GLuint i, j, k; |
| const GLuint *rowA = (const GLuint *) srcRowA; |
| const GLuint *rowB = (const GLuint *) srcRowB; |
| GLuint *dst = (GLuint *) dstRow; |
| /* note: averaging stencil values seems weird, but what else? */ |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| GLuint z = (((rowA[j] >> 8) + (rowA[k] >> 8) + |
| (rowB[j] >> 8) + (rowB[k] >> 8)) / 4) << 8; |
| GLuint s = ((rowA[j] & 0xff) + (rowA[k] & 0xff) + |
| (rowB[j] & 0xff) + (rowB[k] & 0xff)) / 4; |
| dst[i] = z | s; |
| } |
| } |
| else if (datatype == GL_UNSIGNED_INT_8_24_REV_MESA && comps == 2) { |
| GLuint i, j, k; |
| const GLuint *rowA = (const GLuint *) srcRowA; |
| const GLuint *rowB = (const GLuint *) srcRowB; |
| GLuint *dst = (GLuint *) dstRow; |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| GLuint z = ((rowA[j] & 0xffffff) + (rowA[k] & 0xffffff) + |
| (rowB[j] & 0xffffff) + (rowB[k] & 0xffffff)) / 4; |
| GLuint s = (((rowA[j] >> 24) + (rowA[k] >> 24) + |
| (rowB[j] >> 24) + (rowB[k] >> 24)) / 4) << 24; |
| dst[i] = z | s; |
| } |
| } |
| |
| else { |
| _mesa_problem(NULL, "bad format in do_row()"); |
| } |
| } |
| |
| |
| /** |
| * Average together four rows of a source image to produce a single new |
| * row in the dest image. It's legal for the two source rows to point |
| * to the same data. The source width must be equal to either the |
| * dest width or two times the dest width. |
| * |
| * \param datatype GL pixel type \c GL_UNSIGNED_BYTE, \c GL_UNSIGNED_SHORT, |
| * \c GL_FLOAT, etc. |
| * \param comps number of components per pixel (1..4) |
| * \param srcWidth Width of a row in the source data |
| * \param srcRowA Pointer to one of the rows of source data |
| * \param srcRowB Pointer to one of the rows of source data |
| * \param srcRowC Pointer to one of the rows of source data |
| * \param srcRowD Pointer to one of the rows of source data |
| * \param dstWidth Width of a row in the destination data |
| * \param srcRowA Pointer to the row of destination data |
| */ |
| static void |
| do_row_3D(GLenum datatype, GLuint comps, GLint srcWidth, |
| const GLvoid *srcRowA, const GLvoid *srcRowB, |
| const GLvoid *srcRowC, const GLvoid *srcRowD, |
| GLint dstWidth, GLvoid *dstRow) |
| { |
| const GLuint k0 = (srcWidth == dstWidth) ? 0 : 1; |
| const GLuint colStride = (srcWidth == dstWidth) ? 1 : 2; |
| GLuint i, j, k; |
| |
| ASSERT(comps >= 1); |
| ASSERT(comps <= 4); |
| |
| if ((datatype == GL_UNSIGNED_BYTE) && (comps == 4)) { |
| DECLARE_ROW_POINTERS(GLubyte, 4); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| FILTER_3D(2); |
| FILTER_3D(3); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 3)) { |
| DECLARE_ROW_POINTERS(GLubyte, 3); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| FILTER_3D(2); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 2)) { |
| DECLARE_ROW_POINTERS(GLubyte, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_BYTE) && (comps == 1)) { |
| DECLARE_ROW_POINTERS(GLubyte, 1); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| } |
| } |
| else if ((datatype == GL_BYTE) && (comps == 4)) { |
| DECLARE_ROW_POINTERS(GLbyte, 4); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D_SIGNED(0); |
| FILTER_3D_SIGNED(1); |
| FILTER_3D_SIGNED(2); |
| FILTER_3D_SIGNED(3); |
| } |
| } |
| else if ((datatype == GL_BYTE) && (comps == 3)) { |
| DECLARE_ROW_POINTERS(GLbyte, 3); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D_SIGNED(0); |
| FILTER_3D_SIGNED(1); |
| FILTER_3D_SIGNED(2); |
| } |
| } |
| else if ((datatype == GL_BYTE) && (comps == 2)) { |
| DECLARE_ROW_POINTERS(GLbyte, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D_SIGNED(0); |
| FILTER_3D_SIGNED(1); |
| } |
| } |
| else if ((datatype == GL_BYTE) && (comps == 1)) { |
| DECLARE_ROW_POINTERS(GLbyte, 1); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D_SIGNED(0); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 4)) { |
| DECLARE_ROW_POINTERS(GLushort, 4); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| FILTER_3D(2); |
| FILTER_3D(3); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 3)) { |
| DECLARE_ROW_POINTERS(GLushort, 3); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| FILTER_3D(2); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 2)) { |
| DECLARE_ROW_POINTERS(GLushort, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT) && (comps == 1)) { |
| DECLARE_ROW_POINTERS(GLushort, 1); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| } |
| } |
| else if ((datatype == GL_SHORT) && (comps == 4)) { |
| DECLARE_ROW_POINTERS(GLshort, 4); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| FILTER_3D(2); |
| FILTER_3D(3); |
| } |
| } |
| else if ((datatype == GL_SHORT) && (comps == 3)) { |
| DECLARE_ROW_POINTERS(GLshort, 3); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| FILTER_3D(2); |
| } |
| } |
| else if ((datatype == GL_SHORT) && (comps == 2)) { |
| DECLARE_ROW_POINTERS(GLshort, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| FILTER_3D(1); |
| } |
| } |
| else if ((datatype == GL_SHORT) && (comps == 1)) { |
| DECLARE_ROW_POINTERS(GLshort, 1); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_3D(0); |
| } |
| } |
| else if ((datatype == GL_FLOAT) && (comps == 4)) { |
| DECLARE_ROW_POINTERS(GLfloat, 4); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_F_3D(0); |
| FILTER_F_3D(1); |
| FILTER_F_3D(2); |
| FILTER_F_3D(3); |
| } |
| } |
| else if ((datatype == GL_FLOAT) && (comps == 3)) { |
| DECLARE_ROW_POINTERS(GLfloat, 3); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_F_3D(0); |
| FILTER_F_3D(1); |
| FILTER_F_3D(2); |
| } |
| } |
| else if ((datatype == GL_FLOAT) && (comps == 2)) { |
| DECLARE_ROW_POINTERS(GLfloat, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_F_3D(0); |
| FILTER_F_3D(1); |
| } |
| } |
| else if ((datatype == GL_FLOAT) && (comps == 1)) { |
| DECLARE_ROW_POINTERS(GLfloat, 1); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_F_3D(0); |
| } |
| } |
| else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 4)) { |
| DECLARE_ROW_POINTERS(GLhalfARB, 4); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_HF_3D(0); |
| FILTER_HF_3D(1); |
| FILTER_HF_3D(2); |
| FILTER_HF_3D(3); |
| } |
| } |
| else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 3)) { |
| DECLARE_ROW_POINTERS(GLhalfARB, 3); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_HF_3D(0); |
| FILTER_HF_3D(1); |
| FILTER_HF_3D(2); |
| } |
| } |
| else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 2)) { |
| DECLARE_ROW_POINTERS(GLhalfARB, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_HF_3D(0); |
| FILTER_HF_3D(1); |
| } |
| } |
| else if ((datatype == GL_HALF_FLOAT_ARB) && (comps == 1)) { |
| DECLARE_ROW_POINTERS(GLhalfARB, 1); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_HF_3D(0); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_INT) && (comps == 1)) { |
| const GLuint *rowA = (const GLuint *) srcRowA; |
| const GLuint *rowB = (const GLuint *) srcRowB; |
| const GLuint *rowC = (const GLuint *) srcRowC; |
| const GLuint *rowD = (const GLuint *) srcRowD; |
| GLfloat *dst = (GLfloat *) dstRow; |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const uint64_t tmp = (((uint64_t) rowA[j] + (uint64_t) rowA[k]) |
| + ((uint64_t) rowB[j] + (uint64_t) rowB[k]) |
| + ((uint64_t) rowC[j] + (uint64_t) rowC[k]) |
| + ((uint64_t) rowD[j] + (uint64_t) rowD[k])); |
| dst[i] = (GLfloat)((double) tmp * 0.125); |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT_5_6_5) && (comps == 3)) { |
| DECLARE_ROW_POINTERS0(GLushort); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x1f; |
| const GLint rowAr1 = rowA[k] & 0x1f; |
| const GLint rowBr0 = rowB[j] & 0x1f; |
| const GLint rowBr1 = rowB[k] & 0x1f; |
| const GLint rowCr0 = rowC[j] & 0x1f; |
| const GLint rowCr1 = rowC[k] & 0x1f; |
| const GLint rowDr0 = rowD[j] & 0x1f; |
| const GLint rowDr1 = rowD[k] & 0x1f; |
| const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; |
| const GLint rowAg1 = (rowA[k] >> 5) & 0x3f; |
| const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; |
| const GLint rowBg1 = (rowB[k] >> 5) & 0x3f; |
| const GLint rowCg0 = (rowC[j] >> 5) & 0x3f; |
| const GLint rowCg1 = (rowC[k] >> 5) & 0x3f; |
| const GLint rowDg0 = (rowD[j] >> 5) & 0x3f; |
| const GLint rowDg1 = (rowD[k] >> 5) & 0x3f; |
| const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; |
| const GLint rowAb1 = (rowA[k] >> 11) & 0x1f; |
| const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; |
| const GLint rowBb1 = (rowB[k] >> 11) & 0x1f; |
| const GLint rowCb0 = (rowC[j] >> 11) & 0x1f; |
| const GLint rowCb1 = (rowC[k] >> 11) & 0x1f; |
| const GLint rowDb0 = (rowD[j] >> 11) & 0x1f; |
| const GLint rowDb1 = (rowD[k] >> 11) & 0x1f; |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, |
| rowCb0, rowCb1, rowDb0, rowDb1); |
| dst[i] = (b << 11) | (g << 5) | r; |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT_4_4_4_4) && (comps == 4)) { |
| DECLARE_ROW_POINTERS0(GLushort); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0xf; |
| const GLint rowAr1 = rowA[k] & 0xf; |
| const GLint rowBr0 = rowB[j] & 0xf; |
| const GLint rowBr1 = rowB[k] & 0xf; |
| const GLint rowCr0 = rowC[j] & 0xf; |
| const GLint rowCr1 = rowC[k] & 0xf; |
| const GLint rowDr0 = rowD[j] & 0xf; |
| const GLint rowDr1 = rowD[k] & 0xf; |
| const GLint rowAg0 = (rowA[j] >> 4) & 0xf; |
| const GLint rowAg1 = (rowA[k] >> 4) & 0xf; |
| const GLint rowBg0 = (rowB[j] >> 4) & 0xf; |
| const GLint rowBg1 = (rowB[k] >> 4) & 0xf; |
| const GLint rowCg0 = (rowC[j] >> 4) & 0xf; |
| const GLint rowCg1 = (rowC[k] >> 4) & 0xf; |
| const GLint rowDg0 = (rowD[j] >> 4) & 0xf; |
| const GLint rowDg1 = (rowD[k] >> 4) & 0xf; |
| const GLint rowAb0 = (rowA[j] >> 8) & 0xf; |
| const GLint rowAb1 = (rowA[k] >> 8) & 0xf; |
| const GLint rowBb0 = (rowB[j] >> 8) & 0xf; |
| const GLint rowBb1 = (rowB[k] >> 8) & 0xf; |
| const GLint rowCb0 = (rowC[j] >> 8) & 0xf; |
| const GLint rowCb1 = (rowC[k] >> 8) & 0xf; |
| const GLint rowDb0 = (rowD[j] >> 8) & 0xf; |
| const GLint rowDb1 = (rowD[k] >> 8) & 0xf; |
| const GLint rowAa0 = (rowA[j] >> 12) & 0xf; |
| const GLint rowAa1 = (rowA[k] >> 12) & 0xf; |
| const GLint rowBa0 = (rowB[j] >> 12) & 0xf; |
| const GLint rowBa1 = (rowB[k] >> 12) & 0xf; |
| const GLint rowCa0 = (rowC[j] >> 12) & 0xf; |
| const GLint rowCa1 = (rowC[k] >> 12) & 0xf; |
| const GLint rowDa0 = (rowD[j] >> 12) & 0xf; |
| const GLint rowDa1 = (rowD[k] >> 12) & 0xf; |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, |
| rowCb0, rowCb1, rowDb0, rowDb1); |
| const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, |
| rowCa0, rowCa1, rowDa0, rowDa1); |
| |
| dst[i] = (a << 12) | (b << 8) | (g << 4) | r; |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT_1_5_5_5_REV) && (comps == 4)) { |
| DECLARE_ROW_POINTERS0(GLushort); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x1f; |
| const GLint rowAr1 = rowA[k] & 0x1f; |
| const GLint rowBr0 = rowB[j] & 0x1f; |
| const GLint rowBr1 = rowB[k] & 0x1f; |
| const GLint rowCr0 = rowC[j] & 0x1f; |
| const GLint rowCr1 = rowC[k] & 0x1f; |
| const GLint rowDr0 = rowD[j] & 0x1f; |
| const GLint rowDr1 = rowD[k] & 0x1f; |
| const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; |
| const GLint rowAg1 = (rowA[k] >> 5) & 0x1f; |
| const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; |
| const GLint rowBg1 = (rowB[k] >> 5) & 0x1f; |
| const GLint rowCg0 = (rowC[j] >> 5) & 0x1f; |
| const GLint rowCg1 = (rowC[k] >> 5) & 0x1f; |
| const GLint rowDg0 = (rowD[j] >> 5) & 0x1f; |
| const GLint rowDg1 = (rowD[k] >> 5) & 0x1f; |
| const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; |
| const GLint rowAb1 = (rowA[k] >> 10) & 0x1f; |
| const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; |
| const GLint rowBb1 = (rowB[k] >> 10) & 0x1f; |
| const GLint rowCb0 = (rowC[j] >> 10) & 0x1f; |
| const GLint rowCb1 = (rowC[k] >> 10) & 0x1f; |
| const GLint rowDb0 = (rowD[j] >> 10) & 0x1f; |
| const GLint rowDb1 = (rowD[k] >> 10) & 0x1f; |
| const GLint rowAa0 = (rowA[j] >> 15) & 0x1; |
| const GLint rowAa1 = (rowA[k] >> 15) & 0x1; |
| const GLint rowBa0 = (rowB[j] >> 15) & 0x1; |
| const GLint rowBa1 = (rowB[k] >> 15) & 0x1; |
| const GLint rowCa0 = (rowC[j] >> 15) & 0x1; |
| const GLint rowCa1 = (rowC[k] >> 15) & 0x1; |
| const GLint rowDa0 = (rowD[j] >> 15) & 0x1; |
| const GLint rowDa1 = (rowD[k] >> 15) & 0x1; |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, |
| rowCb0, rowCb1, rowDb0, rowDb1); |
| const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, |
| rowCa0, rowCa1, rowDa0, rowDa1); |
| |
| dst[i] = (a << 15) | (b << 10) | (g << 5) | r; |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_SHORT_5_5_5_1) && (comps == 4)) { |
| DECLARE_ROW_POINTERS0(GLushort); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = (rowA[j] >> 11) & 0x1f; |
| const GLint rowAr1 = (rowA[k] >> 11) & 0x1f; |
| const GLint rowBr0 = (rowB[j] >> 11) & 0x1f; |
| const GLint rowBr1 = (rowB[k] >> 11) & 0x1f; |
| const GLint rowCr0 = (rowC[j] >> 11) & 0x1f; |
| const GLint rowCr1 = (rowC[k] >> 11) & 0x1f; |
| const GLint rowDr0 = (rowD[j] >> 11) & 0x1f; |
| const GLint rowDr1 = (rowD[k] >> 11) & 0x1f; |
| const GLint rowAg0 = (rowA[j] >> 6) & 0x1f; |
| const GLint rowAg1 = (rowA[k] >> 6) & 0x1f; |
| const GLint rowBg0 = (rowB[j] >> 6) & 0x1f; |
| const GLint rowBg1 = (rowB[k] >> 6) & 0x1f; |
| const GLint rowCg0 = (rowC[j] >> 6) & 0x1f; |
| const GLint rowCg1 = (rowC[k] >> 6) & 0x1f; |
| const GLint rowDg0 = (rowD[j] >> 6) & 0x1f; |
| const GLint rowDg1 = (rowD[k] >> 6) & 0x1f; |
| const GLint rowAb0 = (rowA[j] >> 1) & 0x1f; |
| const GLint rowAb1 = (rowA[k] >> 1) & 0x1f; |
| const GLint rowBb0 = (rowB[j] >> 1) & 0x1f; |
| const GLint rowBb1 = (rowB[k] >> 1) & 0x1f; |
| const GLint rowCb0 = (rowC[j] >> 1) & 0x1f; |
| const GLint rowCb1 = (rowC[k] >> 1) & 0x1f; |
| const GLint rowDb0 = (rowD[j] >> 1) & 0x1f; |
| const GLint rowDb1 = (rowD[k] >> 1) & 0x1f; |
| const GLint rowAa0 = (rowA[j] & 0x1); |
| const GLint rowAa1 = (rowA[k] & 0x1); |
| const GLint rowBa0 = (rowB[j] & 0x1); |
| const GLint rowBa1 = (rowB[k] & 0x1); |
| const GLint rowCa0 = (rowC[j] & 0x1); |
| const GLint rowCa1 = (rowC[k] & 0x1); |
| const GLint rowDa0 = (rowD[j] & 0x1); |
| const GLint rowDa1 = (rowD[k] & 0x1); |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, |
| rowCb0, rowCb1, rowDb0, rowDb1); |
| const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, |
| rowCa0, rowCa1, rowDa0, rowDa1); |
| |
| dst[i] = (r << 11) | (g << 6) | (b << 1) | a; |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_BYTE_3_3_2) && (comps == 3)) { |
| DECLARE_ROW_POINTERS0(GLubyte); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x3; |
| const GLint rowAr1 = rowA[k] & 0x3; |
| const GLint rowBr0 = rowB[j] & 0x3; |
| const GLint rowBr1 = rowB[k] & 0x3; |
| const GLint rowCr0 = rowC[j] & 0x3; |
| const GLint rowCr1 = rowC[k] & 0x3; |
| const GLint rowDr0 = rowD[j] & 0x3; |
| const GLint rowDr1 = rowD[k] & 0x3; |
| const GLint rowAg0 = (rowA[j] >> 2) & 0x7; |
| const GLint rowAg1 = (rowA[k] >> 2) & 0x7; |
| const GLint rowBg0 = (rowB[j] >> 2) & 0x7; |
| const GLint rowBg1 = (rowB[k] >> 2) & 0x7; |
| const GLint rowCg0 = (rowC[j] >> 2) & 0x7; |
| const GLint rowCg1 = (rowC[k] >> 2) & 0x7; |
| const GLint rowDg0 = (rowD[j] >> 2) & 0x7; |
| const GLint rowDg1 = (rowD[k] >> 2) & 0x7; |
| const GLint rowAb0 = (rowA[j] >> 5) & 0x7; |
| const GLint rowAb1 = (rowA[k] >> 5) & 0x7; |
| const GLint rowBb0 = (rowB[j] >> 5) & 0x7; |
| const GLint rowBb1 = (rowB[k] >> 5) & 0x7; |
| const GLint rowCb0 = (rowC[j] >> 5) & 0x7; |
| const GLint rowCb1 = (rowC[k] >> 5) & 0x7; |
| const GLint rowDb0 = (rowD[j] >> 5) & 0x7; |
| const GLint rowDb1 = (rowD[k] >> 5) & 0x7; |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, |
| rowCb0, rowCb1, rowDb0, rowDb1); |
| dst[i] = (b << 5) | (g << 2) | r; |
| } |
| } |
| else if (datatype == MESA_UNSIGNED_BYTE_4_4 && comps == 2) { |
| DECLARE_ROW_POINTERS0(GLubyte); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0xf; |
| const GLint rowAr1 = rowA[k] & 0xf; |
| const GLint rowBr0 = rowB[j] & 0xf; |
| const GLint rowBr1 = rowB[k] & 0xf; |
| const GLint rowCr0 = rowC[j] & 0xf; |
| const GLint rowCr1 = rowC[k] & 0xf; |
| const GLint rowDr0 = rowD[j] & 0xf; |
| const GLint rowDr1 = rowD[k] & 0xf; |
| const GLint rowAg0 = (rowA[j] >> 4) & 0xf; |
| const GLint rowAg1 = (rowA[k] >> 4) & 0xf; |
| const GLint rowBg0 = (rowB[j] >> 4) & 0xf; |
| const GLint rowBg1 = (rowB[k] >> 4) & 0xf; |
| const GLint rowCg0 = (rowC[j] >> 4) & 0xf; |
| const GLint rowCg1 = (rowC[k] >> 4) & 0xf; |
| const GLint rowDg0 = (rowD[j] >> 4) & 0xf; |
| const GLint rowDg1 = (rowD[k] >> 4) & 0xf; |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| dst[i] = (g << 4) | r; |
| } |
| } |
| else if ((datatype == GL_UNSIGNED_INT_2_10_10_10_REV) && (comps == 4)) { |
| DECLARE_ROW_POINTERS0(GLuint); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| const GLint rowAr0 = rowA[j] & 0x3ff; |
| const GLint rowAr1 = rowA[k] & 0x3ff; |
| const GLint rowBr0 = rowB[j] & 0x3ff; |
| const GLint rowBr1 = rowB[k] & 0x3ff; |
| const GLint rowCr0 = rowC[j] & 0x3ff; |
| const GLint rowCr1 = rowC[k] & 0x3ff; |
| const GLint rowDr0 = rowD[j] & 0x3ff; |
| const GLint rowDr1 = rowD[k] & 0x3ff; |
| const GLint rowAg0 = (rowA[j] >> 10) & 0x3ff; |
| const GLint rowAg1 = (rowA[k] >> 10) & 0x3ff; |
| const GLint rowBg0 = (rowB[j] >> 10) & 0x3ff; |
| const GLint rowBg1 = (rowB[k] >> 10) & 0x3ff; |
| const GLint rowCg0 = (rowC[j] >> 10) & 0x3ff; |
| const GLint rowCg1 = (rowC[k] >> 10) & 0x3ff; |
| const GLint rowDg0 = (rowD[j] >> 10) & 0x3ff; |
| const GLint rowDg1 = (rowD[k] >> 10) & 0x3ff; |
| const GLint rowAb0 = (rowA[j] >> 20) & 0x3ff; |
| const GLint rowAb1 = (rowA[k] >> 20) & 0x3ff; |
| const GLint rowBb0 = (rowB[j] >> 20) & 0x3ff; |
| const GLint rowBb1 = (rowB[k] >> 20) & 0x3ff; |
| const GLint rowCb0 = (rowC[j] >> 20) & 0x3ff; |
| const GLint rowCb1 = (rowC[k] >> 20) & 0x3ff; |
| const GLint rowDb0 = (rowD[j] >> 20) & 0x3ff; |
| const GLint rowDb1 = (rowD[k] >> 20) & 0x3ff; |
| const GLint rowAa0 = (rowA[j] >> 30) & 0x3; |
| const GLint rowAa1 = (rowA[k] >> 30) & 0x3; |
| const GLint rowBa0 = (rowB[j] >> 30) & 0x3; |
| const GLint rowBa1 = (rowB[k] >> 30) & 0x3; |
| const GLint rowCa0 = (rowC[j] >> 30) & 0x3; |
| const GLint rowCa1 = (rowC[k] >> 30) & 0x3; |
| const GLint rowDa0 = (rowD[j] >> 30) & 0x3; |
| const GLint rowDa1 = (rowD[k] >> 30) & 0x3; |
| const GLint r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1, |
| rowCr0, rowCr1, rowDr0, rowDr1); |
| const GLint g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1, |
| rowCg0, rowCg1, rowDg0, rowDg1); |
| const GLint b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1, |
| rowCb0, rowCb1, rowDb0, rowDb1); |
| const GLint a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1, |
| rowCa0, rowCa1, rowDa0, rowDa1); |
| |
| dst[i] = (a << 30) | (b << 20) | (g << 10) | r; |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT_5_9_9_9_REV && comps == 3) { |
| DECLARE_ROW_POINTERS0(GLuint); |
| |
| GLfloat res[3]; |
| GLfloat rowAj[3], rowBj[3], rowCj[3], rowDj[3]; |
| GLfloat rowAk[3], rowBk[3], rowCk[3], rowDk[3]; |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| rgb9e5_to_float3(rowA[j], rowAj); |
| rgb9e5_to_float3(rowB[j], rowBj); |
| rgb9e5_to_float3(rowC[j], rowCj); |
| rgb9e5_to_float3(rowD[j], rowDj); |
| rgb9e5_to_float3(rowA[k], rowAk); |
| rgb9e5_to_float3(rowB[k], rowBk); |
| rgb9e5_to_float3(rowC[k], rowCk); |
| rgb9e5_to_float3(rowD[k], rowDk); |
| res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0] + |
| rowCj[0] + rowCk[0] + rowDj[0] + rowDk[0]) * 0.125F; |
| res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1] + |
| rowCj[1] + rowCk[1] + rowDj[1] + rowDk[1]) * 0.125F; |
| res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2] + |
| rowCj[2] + rowCk[2] + rowDj[2] + rowDk[2]) * 0.125F; |
| dst[i] = float3_to_rgb9e5(res); |
| } |
| } |
| |
| else if (datatype == GL_UNSIGNED_INT_10F_11F_11F_REV && comps == 3) { |
| DECLARE_ROW_POINTERS0(GLuint); |
| |
| GLfloat res[3]; |
| GLfloat rowAj[3], rowBj[3], rowCj[3], rowDj[3]; |
| GLfloat rowAk[3], rowBk[3], rowCk[3], rowDk[3]; |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| r11g11b10f_to_float3(rowA[j], rowAj); |
| r11g11b10f_to_float3(rowB[j], rowBj); |
| r11g11b10f_to_float3(rowC[j], rowCj); |
| r11g11b10f_to_float3(rowD[j], rowDj); |
| r11g11b10f_to_float3(rowA[k], rowAk); |
| r11g11b10f_to_float3(rowB[k], rowBk); |
| r11g11b10f_to_float3(rowC[k], rowCk); |
| r11g11b10f_to_float3(rowD[k], rowDk); |
| res[0] = (rowAj[0] + rowAk[0] + rowBj[0] + rowBk[0] + |
| rowCj[0] + rowCk[0] + rowDj[0] + rowDk[0]) * 0.125F; |
| res[1] = (rowAj[1] + rowAk[1] + rowBj[1] + rowBk[1] + |
| rowCj[1] + rowCk[1] + rowDj[1] + rowDk[1]) * 0.125F; |
| res[2] = (rowAj[2] + rowAk[2] + rowBj[2] + rowBk[2] + |
| rowCj[2] + rowCk[2] + rowDj[2] + rowDk[2]) * 0.125F; |
| dst[i] = float3_to_r11g11b10f(res); |
| } |
| } |
| |
| else if (datatype == GL_FLOAT_32_UNSIGNED_INT_24_8_REV && comps == 1) { |
| DECLARE_ROW_POINTERS(GLfloat, 2); |
| |
| for (i = j = 0, k = k0; i < (GLuint) dstWidth; |
| i++, j += colStride, k += colStride) { |
| FILTER_F_3D(0); |
| } |
| } |
| |
| else { |
| _mesa_problem(NULL, "bad format in do_row()"); |
| } |
| } |
| |
| |
| /* |
| * These functions generate a 1/2-size mipmap image from a source image. |
| * Texture borders are handled by copying or averaging the source image's |
| * border texels, depending on the scale-down factor. |
| */ |
| |
| static void |
| make_1d_mipmap(GLenum datatype, GLuint comps, GLint border, |
| GLint srcWidth, const GLubyte *srcPtr, |
| GLint dstWidth, GLubyte *dstPtr) |
| { |
| const GLint bpt = bytes_per_pixel(datatype, comps); |
| const GLubyte *src; |
| GLubyte *dst; |
| |
| /* skip the border pixel, if any */ |
| src = srcPtr + border * bpt; |
| dst = dstPtr + border * bpt; |
| |
| /* we just duplicate the input row, kind of hack, saves code */ |
| do_row(datatype, comps, srcWidth - 2 * border, src, src, |
| dstWidth - 2 * border, dst); |
| |
| if (border) { |
| /* copy left-most pixel from source */ |
| assert(dstPtr); |
| assert(srcPtr); |
| memcpy(dstPtr, srcPtr, bpt); |
| /* copy right-most pixel from source */ |
| memcpy(dstPtr + (dstWidth - 1) * bpt, |
| srcPtr + (srcWidth - 1) * bpt, |
| bpt); |
| } |
| } |
| |
| |
| static void |
| make_2d_mipmap(GLenum datatype, GLuint comps, GLint border, |
| GLint srcWidth, GLint srcHeight, |
| const GLubyte *srcPtr, GLint srcRowStride, |
| GLint dstWidth, GLint dstHeight, |
| GLubyte *dstPtr, GLint dstRowStride) |
| { |
| const GLint bpt = bytes_per_pixel(datatype, comps); |
| const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ |
| const GLint dstWidthNB = dstWidth - 2 * border; |
| const GLint dstHeightNB = dstHeight - 2 * border; |
| const GLubyte *srcA, *srcB; |
| GLubyte *dst; |
| GLint row, srcRowStep; |
| |
| /* Compute src and dst pointers, skipping any border */ |
| srcA = srcPtr + border * ((srcWidth + 1) * bpt); |
| if (srcHeight > 1 && srcHeight > dstHeight) { |
| /* sample from two source rows */ |
| srcB = srcA + srcRowStride; |
| srcRowStep = 2; |
| } |
| else { |
| /* sample from one source row */ |
| srcB = srcA; |
| srcRowStep = 1; |
| } |
| |
| dst = dstPtr + border * ((dstWidth + 1) * bpt); |
| |
| for (row = 0; row < dstHeightNB; row++) { |
| do_row(datatype, comps, srcWidthNB, srcA, srcB, |
| dstWidthNB, dst); |
| srcA += srcRowStep * srcRowStride; |
| srcB += srcRowStep * srcRowStride; |
| dst += dstRowStride; |
| } |
| |
| /* This is ugly but probably won't be used much */ |
| if (border > 0) { |
| /* fill in dest border */ |
| /* lower-left border pixel */ |
| assert(dstPtr); |
| assert(srcPtr); |
| memcpy(dstPtr, srcPtr, bpt); |
| /* lower-right border pixel */ |
| memcpy(dstPtr + (dstWidth - 1) * bpt, |
| srcPtr + (srcWidth - 1) * bpt, bpt); |
| /* upper-left border pixel */ |
| memcpy(dstPtr + dstWidth * (dstHeight - 1) * bpt, |
| srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt); |
| /* upper-right border pixel */ |
| memcpy(dstPtr + (dstWidth * dstHeight - 1) * bpt, |
| srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt); |
| /* lower border */ |
| do_row(datatype, comps, srcWidthNB, |
| srcPtr + bpt, |
| srcPtr + bpt, |
| dstWidthNB, dstPtr + bpt); |
| /* upper border */ |
| do_row(datatype, comps, srcWidthNB, |
| srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, |
| srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, |
| dstWidthNB, |
| dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt); |
| /* left and right borders */ |
| if (srcHeight == dstHeight) { |
| /* copy border pixel from src to dst */ |
| for (row = 1; row < srcHeight; row++) { |
| memcpy(dstPtr + dstWidth * row * bpt, |
| srcPtr + srcWidth * row * bpt, bpt); |
| memcpy(dstPtr + (dstWidth * row + dstWidth - 1) * bpt, |
| srcPtr + (srcWidth * row + srcWidth - 1) * bpt, bpt); |
| } |
| } |
| else { |
| /* average two src pixels each dest pixel */ |
| for (row = 0; row < dstHeightNB; row += 2) { |
| do_row(datatype, comps, 1, |
| srcPtr + (srcWidth * (row * 2 + 1)) * bpt, |
| srcPtr + (srcWidth * (row * 2 + 2)) * bpt, |
| 1, dstPtr + (dstWidth * row + 1) * bpt); |
| do_row(datatype, comps, 1, |
| srcPtr + (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt, |
| srcPtr + (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt, |
| 1, dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt); |
| } |
| } |
| } |
| } |
| |
| |
| static void |
| make_3d_mipmap(GLenum datatype, GLuint comps, GLint border, |
| GLint srcWidth, GLint srcHeight, GLint srcDepth, |
| const GLubyte **srcPtr, GLint srcRowStride, |
| GLint dstWidth, GLint dstHeight, GLint dstDepth, |
| GLubyte **dstPtr, GLint dstRowStride) |
| { |
| const GLint bpt = bytes_per_pixel(datatype, comps); |
| const GLint srcWidthNB = srcWidth - 2 * border; /* sizes w/out border */ |
| const GLint srcDepthNB = srcDepth - 2 * border; |
| const GLint dstWidthNB = dstWidth - 2 * border; |
| const GLint dstHeightNB = dstHeight - 2 * border; |
| const GLint dstDepthNB = dstDepth - 2 * border; |
| GLint img, row; |
| GLint bytesPerSrcImage, bytesPerDstImage; |
| GLint srcImageOffset, srcRowOffset; |
| |
| (void) srcDepthNB; /* silence warnings */ |
| |
| bytesPerSrcImage = srcRowStride * srcHeight * bpt; |
| bytesPerDstImage = dstRowStride * dstHeight * bpt; |
| |
| /* Offset between adjacent src images to be averaged together */ |
| srcImageOffset = (srcDepth == dstDepth) ? 0 : 1; |
| |
| /* Offset between adjacent src rows to be averaged together */ |
| srcRowOffset = (srcHeight == dstHeight) ? 0 : srcRowStride; |
| |
| /* |
| * Need to average together up to 8 src pixels for each dest pixel. |
| * Break that down into 3 operations: |
| * 1. take two rows from source image and average them together. |
| * 2. take two rows from next source image and average them together. |
| * 3. take the two averaged rows and average them for the final dst row. |
| */ |
| |
| /* |
| printf("mip3d %d x %d x %d -> %d x %d x %d\n", |
| srcWidth, srcHeight, srcDepth, dstWidth, dstHeight, dstDepth); |
| */ |
| |
| for (img = 0; img < dstDepthNB; img++) { |
| /* first source image pointer, skipping border */ |
| const GLubyte *imgSrcA = srcPtr[img * 2 + border] |
| + srcRowStride * border + bpt * border; |
| /* second source image pointer, skipping border */ |
| const GLubyte *imgSrcB = srcPtr[img * 2 + srcImageOffset + border] |
| + srcRowStride * border + bpt * border; |
| |
| /* address of the dest image, skipping border */ |
| GLubyte *imgDst = dstPtr[img + border] |
| + dstRowStride * border + bpt * border; |
| |
| /* setup the four source row pointers and the dest row pointer */ |
| const GLubyte *srcImgARowA = imgSrcA; |
| const GLubyte *srcImgARowB = imgSrcA + srcRowOffset; |
| const GLubyte *srcImgBRowA = imgSrcB; |
| const GLubyte *srcImgBRowB = imgSrcB + srcRowOffset; |
| GLubyte *dstImgRow = imgDst; |
| |
| for (row = 0; row < dstHeightNB; row++) { |
| do_row_3D(datatype, comps, srcWidthNB, |
| srcImgARowA, srcImgARowB, |
| srcImgBRowA, srcImgBRowB, |
| dstWidthNB, dstImgRow); |
| |
| /* advance to next rows */ |
| srcImgARowA += srcRowStride + srcRowOffset; |
| srcImgARowB += srcRowStride + srcRowOffset; |
| srcImgBRowA += srcRowStride + srcRowOffset; |
| srcImgBRowB += srcRowStride + srcRowOffset; |
| dstImgRow += dstRowStride; |
| } |
| } |
| |
| |
| /* Luckily we can leverage the make_2d_mipmap() function here! */ |
| if (border > 0) { |
| /* do front border image */ |
| make_2d_mipmap(datatype, comps, 1, |
| srcWidth, srcHeight, srcPtr[0], srcRowStride, |
| dstWidth, dstHeight, dstPtr[0], dstRowStride); |
| /* do back border image */ |
| make_2d_mipmap(datatype, comps, 1, |
| srcWidth, srcHeight, srcPtr[srcDepth - 1], srcRowStride, |
| dstWidth, dstHeight, dstPtr[dstDepth - 1], dstRowStride); |
| |
| /* do four remaining border edges that span the image slices */ |
| if (srcDepth == dstDepth) { |
| /* just copy border pixels from src to dst */ |
| for (img = 0; img < dstDepthNB; img++) { |
| const GLubyte *src; |
| GLubyte *dst; |
| |
| /* do border along [img][row=0][col=0] */ |
| src = srcPtr[img * 2]; |
| dst = dstPtr[img]; |
| memcpy(dst, src, bpt); |
| |
| /* do border along [img][row=dstHeight-1][col=0] */ |
| src = srcPtr[img * 2] + (srcHeight - 1) * srcRowStride; |
| dst = dstPtr[img] + (dstHeight - 1) * dstRowStride; |
| memcpy(dst, src, bpt); |
| |
| /* do border along [img][row=0][col=dstWidth-1] */ |
| src = srcPtr[img * 2] + (srcWidth - 1) * bpt; |
| dst = dstPtr[img] + (dstWidth - 1) * bpt; |
| memcpy(dst, src, bpt); |
| |
| /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ |
| src = srcPtr[img * 2] + (bytesPerSrcImage - bpt); |
| dst = dstPtr[img] + (bytesPerDstImage - bpt); |
| memcpy(dst, src, bpt); |
| } |
| } |
| else { |
| /* average border pixels from adjacent src image pairs */ |
| ASSERT(srcDepthNB == 2 * dstDepthNB); |
| for (img = 0; img < dstDepthNB; img++) { |
| const GLubyte *srcA, *srcB; |
| GLubyte *dst; |
| |
| /* do border along [img][row=0][col=0] */ |
| srcA = srcPtr[img * 2 + 0]; |
| srcB = srcPtr[img * 2 + srcImageOffset]; |
| dst = dstPtr[img]; |
| do_row(datatype, comps, 1, srcA, srcB, 1, dst); |
| |
| /* do border along [img][row=dstHeight-1][col=0] */ |
| srcA = srcPtr[img * 2 + 0] |
| + (srcHeight - 1) * srcRowStride; |
| srcB = srcPtr[img * 2 + srcImageOffset] |
| + (srcHeight - 1) * srcRowStride; |
| dst = dstPtr[img] + (dstHeight - 1) * dstRowStride; |
| do_row(datatype, comps, 1, srcA, srcB, 1, dst); |
| |
| /* do border along [img][row=0][col=dstWidth-1] */ |
| srcA = srcPtr[img * 2 + 0] + (srcWidth - 1) * bpt; |
| srcB = srcPtr[img * 2 + srcImageOffset] + (srcWidth - 1) * bpt; |
| dst = dstPtr[img] + (dstWidth - 1) * bpt; |
| do_row(datatype, comps, 1, srcA, srcB, 1, dst); |
| |
| /* do border along [img][row=dstHeight-1][col=dstWidth-1] */ |
| srcA = srcPtr[img * 2 + 0] + (bytesPerSrcImage - bpt); |
| srcB = srcPtr[img * 2 + srcImageOffset] + (bytesPerSrcImage - bpt); |
| dst = dstPtr[img] + (bytesPerDstImage - bpt); |
| do_row(datatype, comps, 1, srcA, srcB, 1, dst); |
| } |
| } |
| } |
| } |
| |
| |
| /** |
| * Down-sample a texture image to produce the next lower mipmap level. |
| * \param comps components per texel (1, 2, 3 or 4) |
| * \param srcData array[slice] of pointers to source image slices |
| * \param dstData array[slice] of pointers to dest image slices |
| * \param srcRowStride stride between source rows, in bytes |
| * \param dstRowStride stride between destination rows, in bytes |
| */ |
| void |
| _mesa_generate_mipmap_level(GLenum target, |
| GLenum datatype, GLuint comps, |
| GLint border, |
| GLint srcWidth, GLint srcHeight, GLint srcDepth, |
| const GLubyte **srcData, |
| GLint srcRowStride, |
| GLint dstWidth, GLint dstHeight, GLint dstDepth, |
| GLubyte **dstData, |
| GLint dstRowStride) |
| { |
| int i; |
| |
| switch (target) { |
| case GL_TEXTURE_1D: |
| make_1d_mipmap(datatype, comps, border, |
| srcWidth, srcData[0], |
| dstWidth, dstData[0]); |
| break; |
| case GL_TEXTURE_2D: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: |
| case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: |
| case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: |
| make_2d_mipmap(datatype, comps, border, |
| srcWidth, srcHeight, srcData[0], srcRowStride, |
| dstWidth, dstHeight, dstData[0], dstRowStride); |
| break; |
| case GL_TEXTURE_3D: |
| make_3d_mipmap(datatype, comps, border, |
| srcWidth, srcHeight, srcDepth, |
| srcData, srcRowStride, |
| dstWidth, dstHeight, dstDepth, |
| dstData, dstRowStride); |
| break; |
| case GL_TEXTURE_1D_ARRAY_EXT: |
| assert(srcHeight == 1); |
| assert(dstHeight == 1); |
| for (i = 0; i < dstDepth; i++) { |
| make_1d_mipmap(datatype, comps, border, |
| srcWidth, srcData[i], |
| dstWidth, dstData[i]); |
| } |
| break; |
| case GL_TEXTURE_2D_ARRAY_EXT: |
| case GL_TEXTURE_CUBE_MAP_ARRAY: |
| for (i = 0; i < dstDepth; i++) { |
| make_2d_mipmap(datatype, comps, border, |
| srcWidth, srcHeight, srcData[i], srcRowStride, |
| dstWidth, dstHeight, dstData[i], dstRowStride); |
| } |
| break; |
| case GL_TEXTURE_RECTANGLE_NV: |
| case GL_TEXTURE_EXTERNAL_OES: |
| /* no mipmaps, do nothing */ |
| break; |
| default: |
| _mesa_problem(NULL, "bad tex target in _mesa_generate_mipmaps"); |
| return; |
| } |
| } |
| |
| |
| /** |
| * compute next (level+1) image size |
| * \return GL_FALSE if no smaller size can be generated (eg. src is 1x1x1 size) |
| */ |
| GLboolean |
| _mesa_next_mipmap_level_size(GLenum target, GLint border, |
| GLint srcWidth, GLint srcHeight, GLint srcDepth, |
| GLint *dstWidth, GLint *dstHeight, GLint *dstDepth) |
| { |
| if (srcWidth - 2 * border > 1) { |
| *dstWidth = (srcWidth - 2 * border) / 2 + 2 * border; |
| } |
| else { |
| *dstWidth = srcWidth; /* can't go smaller */ |
| } |
| |
| if ((srcHeight - 2 * border > 1) && |
| (target != GL_TEXTURE_1D_ARRAY_EXT)) { |
| *dstHeight = (srcHeight - 2 * border) / 2 + 2 * border; |
| } |
| else { |
| *dstHeight = srcHeight; /* can't go smaller */ |
| } |
| |
| if ((srcDepth - 2 * border > 1) && |
| (target != GL_TEXTURE_2D_ARRAY_EXT && |
| target != GL_TEXTURE_CUBE_MAP_ARRAY)) { |
| *dstDepth = (srcDepth - 2 * border) / 2 + 2 * border; |
| } |
| else { |
| *dstDepth = srcDepth; /* can't go smaller */ |
| } |
| |
| if (*dstWidth == srcWidth && |
| *dstHeight == srcHeight && |
| *dstDepth == srcDepth) { |
| return GL_FALSE; |
| } |
| else { |
| return GL_TRUE; |
| } |
| } |
| |
| |
| /** |
| * Helper function for mipmap generation. |
| * Make sure the specified destination mipmap level is the right size/format |
| * for mipmap generation. If not, (re) allocate it. |
| * \return GL_TRUE if successful, GL_FALSE if mipmap generation should stop |
| */ |
| GLboolean |
| _mesa_prepare_mipmap_level(struct gl_context *ctx, |
| struct gl_texture_object *texObj, GLuint level, |
| GLsizei width, GLsizei height, GLsizei depth, |
| GLsizei border, GLenum intFormat, mesa_format format) |
| { |
| const GLuint numFaces = _mesa_num_tex_faces(texObj->Target); |
| GLuint face; |
| |
| if (texObj->Immutable) { |
| /* The texture was created with glTexStorage() so the number/size of |
| * mipmap levels is fixed and the storage for all images is already |
| * allocated. |
| */ |
| if (!texObj->Image[0][level]) { |
| /* No more levels to create - we're done */ |
| return GL_FALSE; |
| } |
| else { |
| /* Nothing to do - the texture memory must have already been |
| * allocated to the right size so we're all set. |
| */ |
| return GL_TRUE; |
| } |
| } |
| |
| for (face = 0; face < numFaces; face++) { |
| struct gl_texture_image *dstImage; |
| GLenum target; |
| |
| if (numFaces == 1) |
| target = texObj->Target; |
| else |
| target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + face; |
| |
| dstImage = _mesa_get_tex_image(ctx, texObj, target, level); |
| if (!dstImage) { |
| /* out of memory */ |
| return GL_FALSE; |
| } |
| |
| if (dstImage->Width != width || |
| dstImage->Height != height || |
| dstImage->Depth != depth || |
| dstImage->Border != border || |
| dstImage->InternalFormat != intFormat || |
| dstImage->TexFormat != format) { |
| /* need to (re)allocate image */ |
| ctx->Driver.FreeTextureImageBuffer(ctx, dstImage); |
| |
| _mesa_init_teximage_fields(ctx, dstImage, |
| width, height, depth, |
| border, intFormat, format); |
| |
| ctx->Driver.AllocTextureImageBuffer(ctx, dstImage); |
| |
| /* in case the mipmap level is part of an FBO: */ |
| _mesa_update_fbo_texture(ctx, texObj, face, level); |
| |
| ctx->NewState |= _NEW_TEXTURE; |
| } |
| } |
| |
| return GL_TRUE; |
| } |
| |
| |
| static void |
| generate_mipmap_uncompressed(struct gl_context *ctx, GLenum target, |
| struct gl_texture_object *texObj, |
| const struct gl_texture_image *srcImage, |
| GLuint maxLevel) |
| { |
| GLuint level; |
| GLenum datatype; |
| GLuint comps; |
| |
| _mesa_format_to_type_and_comps(srcImage->TexFormat, &datatype, &comps); |
| |
| for (level = texObj->BaseLevel; level < maxLevel; level++) { |
| /* generate image[level+1] from image[level] */ |
| struct gl_texture_image *srcImage, *dstImage; |
| GLint srcRowStride, dstRowStride; |
| GLint srcWidth, srcHeight, srcDepth; |
| GLint dstWidth, dstHeight, dstDepth; |
| GLint border; |
| GLint slice; |
| GLboolean nextLevel; |
| GLubyte **srcMaps, **dstMaps; |
| GLboolean success = GL_TRUE; |
| |
| /* get src image parameters */ |
| srcImage = _mesa_select_tex_image(ctx, texObj, target, level); |
| ASSERT(srcImage); |
| srcWidth = srcImage->Width; |
| srcHeight = srcImage->Height; |
| srcDepth = srcImage->Depth; |
| border = srcImage->Border; |
| |
| nextLevel = _mesa_next_mipmap_level_size(target, border, |
| srcWidth, srcHeight, srcDepth, |
| &dstWidth, &dstHeight, &dstDepth); |
| if (!nextLevel) |
| return; |
| |
| if (!_mesa_prepare_mipmap_level(ctx, texObj, level + 1, |
| dstWidth, dstHeight, dstDepth, |
| border, srcImage->InternalFormat, |
| srcImage->TexFormat)) { |
| return; |
| } |
| |
| /* get dest gl_texture_image */ |
| dstImage = _mesa_get_tex_image(ctx, texObj, target, level + 1); |
| if (!dstImage) { |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); |
| return; |
| } |
| |
| if (target == GL_TEXTURE_1D_ARRAY) { |
| srcDepth = srcHeight; |
| dstDepth = dstHeight; |
| srcHeight = 1; |
| dstHeight = 1; |
| } |
| |
| /* Map src texture image slices */ |
| srcMaps = calloc(srcDepth, sizeof(GLubyte *)); |
| if (srcMaps) { |
| for (slice = 0; slice < srcDepth; slice++) { |
| ctx->Driver.MapTextureImage(ctx, srcImage, slice, |
| 0, 0, srcWidth, srcHeight, |
| GL_MAP_READ_BIT, |
| &srcMaps[slice], &srcRowStride); |
| if (!srcMaps[slice]) { |
| success = GL_FALSE; |
| break; |
| } |
| } |
| } |
| else { |
| success = GL_FALSE; |
| } |
| |
| /* Map dst texture image slices */ |
| dstMaps = calloc(dstDepth, sizeof(GLubyte *)); |
| if (dstMaps) { |
| for (slice = 0; slice < dstDepth; slice++) { |
| ctx->Driver.MapTextureImage(ctx, dstImage, slice, |
| 0, 0, dstWidth, dstHeight, |
| GL_MAP_WRITE_BIT, |
| &dstMaps[slice], &dstRowStride); |
| if (!dstMaps[slice]) { |
| success = GL_FALSE; |
| break; |
| } |
| } |
| } |
| else { |
| success = GL_FALSE; |
| } |
| |
| if (success) { |
| /* generate one mipmap level (for 1D/2D/3D/array/etc texture) */ |
| _mesa_generate_mipmap_level(target, datatype, comps, border, |
| srcWidth, srcHeight, srcDepth, |
| (const GLubyte **) srcMaps, srcRowStride, |
| dstWidth, dstHeight, dstDepth, |
| dstMaps, dstRowStride); |
| } |
| |
| /* Unmap src image slices */ |
| if (srcMaps) { |
| for (slice = 0; slice < srcDepth; slice++) { |
| if (srcMaps[slice]) { |
| ctx->Driver.UnmapTextureImage(ctx, srcImage, slice); |
| } |
| } |
| free(srcMaps); |
| } |
| |
| /* Unmap dst image slices */ |
| if (dstMaps) { |
| for (slice = 0; slice < dstDepth; slice++) { |
| if (dstMaps[slice]) { |
| ctx->Driver.UnmapTextureImage(ctx, dstImage, slice); |
| } |
| } |
| free(dstMaps); |
| } |
| |
| if (!success) { |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, "mipmap generation"); |
| break; |
| } |
| } /* loop over mipmap levels */ |
| } |
| |
| |
| static void |
| generate_mipmap_compressed(struct gl_context *ctx, GLenum target, |
| struct gl_texture_object *texObj, |
| struct gl_texture_image *srcImage, |
| GLuint maxLevel) |
| { |
| GLuint level; |
| mesa_format temp_format; |
| GLint components; |
| GLuint temp_src_row_stride, temp_src_img_stride; /* in bytes */ |
| GLubyte *temp_src = NULL, *temp_dst = NULL; |
| GLenum temp_datatype; |
| GLenum temp_base_format; |
| GLubyte **temp_src_slices = NULL, **temp_dst_slices = NULL; |
| |
| /* only two types of compressed textures at this time */ |
| assert(texObj->Target == GL_TEXTURE_2D || |
| texObj->Target == GL_TEXTURE_2D_ARRAY || |
| texObj->Target == GL_TEXTURE_CUBE_MAP_ARB || |
| texObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY); |
| |
| /* |
| * Choose a format for the temporary, uncompressed base image. |
| * Then, get number of components, choose temporary image datatype, |
| * and get base format. |
| */ |
| temp_format = _mesa_get_uncompressed_format(srcImage->TexFormat); |
| |
| components = _mesa_format_num_components(temp_format); |
| |
| switch (_mesa_get_format_datatype(srcImage->TexFormat)) { |
| case GL_FLOAT: |
| temp_datatype = GL_FLOAT; |
| break; |
| case GL_SIGNED_NORMALIZED: |
| /* Revisit this if we get compressed formats with >8 bits per component */ |
| temp_datatype = GL_BYTE; |
| break; |
| default: |
| temp_datatype = GL_UNSIGNED_BYTE; |
| } |
| |
| temp_base_format = _mesa_get_format_base_format(temp_format); |
| |
| |
| /* allocate storage for the temporary, uncompressed image */ |
| temp_src_row_stride = _mesa_format_row_stride(temp_format, srcImage->Width); |
| temp_src_img_stride = _mesa_format_image_size(temp_format, srcImage->Width, |
| srcImage->Height, 1); |
| temp_src = malloc(temp_src_img_stride * srcImage->Depth); |
| |
| /* Allocate storage for arrays of slice pointers */ |
| temp_src_slices = malloc(srcImage->Depth * sizeof(GLubyte *)); |
| temp_dst_slices = malloc(srcImage->Depth * sizeof(GLubyte *)); |
| |
| if (!temp_src || !temp_src_slices || !temp_dst_slices) { |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps"); |
| goto end; |
| } |
| |
| /* decompress base image to the temporary src buffer */ |
| { |
| /* save pixel packing mode */ |
| struct gl_pixelstore_attrib save = ctx->Pack; |
| /* use default/tight packing parameters */ |
| ctx->Pack = ctx->DefaultPacking; |
| |
| /* Get the uncompressed image */ |
| assert(srcImage->Level == texObj->BaseLevel); |
| ctx->Driver.GetTexImage(ctx, |
| temp_base_format, temp_datatype, |
| temp_src, srcImage); |
| /* restore packing mode */ |
| ctx->Pack = save; |
| } |
| |
| for (level = texObj->BaseLevel; level < maxLevel; level++) { |
| /* generate image[level+1] from image[level] */ |
| const struct gl_texture_image *srcImage; |
| struct gl_texture_image *dstImage; |
| GLint srcWidth, srcHeight, srcDepth; |
| GLint dstWidth, dstHeight, dstDepth; |
| GLint border; |
| GLboolean nextLevel; |
| GLuint temp_dst_row_stride, temp_dst_img_stride; /* in bytes */ |
| GLuint i; |
| |
| /* get src image parameters */ |
| srcImage = _mesa_select_tex_image(ctx, texObj, target, level); |
| ASSERT(srcImage); |
| srcWidth = srcImage->Width; |
| srcHeight = srcImage->Height; |
| srcDepth = srcImage->Depth; |
| border = srcImage->Border; |
| |
| nextLevel = _mesa_next_mipmap_level_size(target, border, |
| srcWidth, srcHeight, srcDepth, |
| &dstWidth, &dstHeight, &dstDepth); |
| if (!nextLevel) |
| break; |
| |
| /* Compute dst image strides and alloc memory on first iteration */ |
| temp_dst_row_stride = _mesa_format_row_stride(temp_format, dstWidth); |
| temp_dst_img_stride = _mesa_format_image_size(temp_format, dstWidth, |
| dstHeight, 1); |
| if (!temp_dst) { |
| temp_dst = malloc(temp_dst_img_stride * dstDepth); |
| if (!temp_dst) { |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, "generate mipmaps"); |
| goto end; |
| } |
| } |
| |
| /* get dest gl_texture_image */ |
| dstImage = _mesa_get_tex_image(ctx, texObj, target, level + 1); |
| if (!dstImage) { |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); |
| goto end; |
| } |
| |
| /* for 2D arrays, setup array[depth] of slice pointers */ |
| for (i = 0; i < srcDepth; i++) { |
| temp_src_slices[i] = temp_src + temp_src_img_stride * i; |
| } |
| for (i = 0; i < dstDepth; i++) { |
| temp_dst_slices[i] = temp_dst + temp_dst_img_stride * i; |
| } |
| |
| /* Rescale src image to dest image. |
| * This will loop over the slices of a 2D array. |
| */ |
| _mesa_generate_mipmap_level(target, temp_datatype, components, border, |
| srcWidth, srcHeight, srcDepth, |
| (const GLubyte **) temp_src_slices, |
| temp_src_row_stride, |
| dstWidth, dstHeight, dstDepth, |
| temp_dst_slices, temp_dst_row_stride); |
| |
| if (!_mesa_prepare_mipmap_level(ctx, texObj, level + 1, |
| dstWidth, dstHeight, dstDepth, |
| border, srcImage->InternalFormat, |
| srcImage->TexFormat)) { |
| /* all done */ |
| goto end; |
| } |
| |
| /* The image space was allocated above so use glTexSubImage now */ |
| ctx->Driver.TexSubImage(ctx, 2, dstImage, |
| 0, 0, 0, dstWidth, dstHeight, dstDepth, |
| temp_base_format, temp_datatype, |
| temp_dst, &ctx->DefaultPacking); |
| |
| /* swap src and dest pointers */ |
| { |
| GLubyte *temp = temp_src; |
| temp_src = temp_dst; |
| temp_dst = temp; |
| temp_src_row_stride = temp_dst_row_stride; |
| temp_src_img_stride = temp_dst_img_stride; |
| } |
| } /* loop over mipmap levels */ |
| |
| end: |
| free(temp_src); |
| free(temp_dst); |
| free(temp_src_slices); |
| free(temp_dst_slices); |
| } |
| |
| /** |
| * Automatic mipmap generation. |
| * This is the fallback/default function for ctx->Driver.GenerateMipmap(). |
| * Generate a complete set of mipmaps from texObj's BaseLevel image. |
| * Stop at texObj's MaxLevel or when we get to the 1x1 texture. |
| * For cube maps, target will be one of |
| * GL_TEXTURE_CUBE_MAP_POSITIVE/NEGATIVE_X/Y/Z; never GL_TEXTURE_CUBE_MAP. |
| */ |
| void |
| _mesa_generate_mipmap(struct gl_context *ctx, GLenum target, |
| struct gl_texture_object *texObj) |
| { |
| struct gl_texture_image *srcImage; |
| GLint maxLevel; |
| |
| ASSERT(texObj); |
| srcImage = _mesa_select_tex_image(ctx, texObj, target, texObj->BaseLevel); |
| ASSERT(srcImage); |
| |
| maxLevel = _mesa_max_texture_levels(ctx, texObj->Target) - 1; |
| ASSERT(maxLevel >= 0); /* bad target */ |
| |
| maxLevel = MIN2(maxLevel, texObj->MaxLevel); |
| |
| if (_mesa_is_format_compressed(srcImage->TexFormat)) { |
| generate_mipmap_compressed(ctx, target, texObj, srcImage, maxLevel); |
| } else { |
| generate_mipmap_uncompressed(ctx, target, texObj, srcImage, maxLevel); |
| } |
| } |