0,0 → 1,2209 |
/* |
* 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(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 */ |
GLint i; |
|
/* get src image parameters */ |
srcImage = _mesa_select_tex_image(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(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); |
} |
} |