};
-
-enum dtype
-{
- DTYPE_UBYTE,
- DTYPE_UBYTE_3_3_2,
- DTYPE_USHORT,
- DTYPE_USHORT_4_4_4_4,
- DTYPE_USHORT_5_6_5,
- DTYPE_USHORT_1_5_5_5_REV,
- DTYPE_UINT,
- DTYPE_FLOAT,
- DTYPE_HALF_FLOAT
-};
-
-
-typedef uint16_t half_float;
-
-
-/**
- * \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_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 float aj = util_half_to_float(rowA[j][e]); \
- const float ak = util_half_to_float(rowA[k][e]); \
- const float bj = util_half_to_float(rowB[j][e]); \
- const float bk = util_half_to_float(rowB[k][e]); \
- const float cj = util_half_to_float(rowC[j][e]); \
- const float ck = util_half_to_float(rowC[k][e]); \
- const float dj = util_half_to_float(rowD[j][e]); \
- const float dk = util_half_to_float(rowD[k][e]); \
- dst[i][e] = util_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(enum dtype datatype, uint comps, int srcWidth,
- const void *srcRowA, const void *srcRowB,
- int dstWidth, void *dstRow)
-{
- const uint k0 = (srcWidth == dstWidth) ? 0 : 1;
- const uint 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 == DTYPE_UBYTE && comps == 4) {
- uint i, j, k;
- const ubyte(*rowA)[4] = (const ubyte(*)[4]) srcRowA;
- const ubyte(*rowB)[4] = (const ubyte(*)[4]) srcRowB;
- ubyte(*dst)[4] = (ubyte(*)[4]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_UBYTE && comps == 3) {
- uint i, j, k;
- const ubyte(*rowA)[3] = (const ubyte(*)[3]) srcRowA;
- const ubyte(*rowB)[3] = (const ubyte(*)[3]) srcRowB;
- ubyte(*dst)[3] = (ubyte(*)[3]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_UBYTE && comps == 2) {
- uint i, j, k;
- const ubyte(*rowA)[2] = (const ubyte(*)[2]) srcRowA;
- const ubyte(*rowB)[2] = (const ubyte(*)[2]) srcRowB;
- ubyte(*dst)[2] = (ubyte(*)[2]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_UBYTE && comps == 1) {
- uint i, j, k;
- const ubyte *rowA = (const ubyte *) srcRowA;
- const ubyte *rowB = (const ubyte *) srcRowB;
- ubyte *dst = (ubyte *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) >> 2;
- }
- }
-
- else if (datatype == DTYPE_USHORT && comps == 4) {
- uint i, j, k;
- const ushort(*rowA)[4] = (const ushort(*)[4]) srcRowA;
- const ushort(*rowB)[4] = (const ushort(*)[4]) srcRowB;
- ushort(*dst)[4] = (ushort(*)[4]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_USHORT && comps == 3) {
- uint i, j, k;
- const ushort(*rowA)[3] = (const ushort(*)[3]) srcRowA;
- const ushort(*rowB)[3] = (const ushort(*)[3]) srcRowB;
- ushort(*dst)[3] = (ushort(*)[3]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_USHORT && comps == 2) {
- uint i, j, k;
- const ushort(*rowA)[2] = (const ushort(*)[2]) srcRowA;
- const ushort(*rowB)[2] = (const ushort(*)[2]) srcRowB;
- ushort(*dst)[2] = (ushort(*)[2]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_USHORT && comps == 1) {
- uint i, j, k;
- const ushort *rowA = (const ushort *) srcRowA;
- const ushort *rowB = (const ushort *) srcRowB;
- ushort *dst = (ushort *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) / 4;
- }
- }
-
- else if (datatype == DTYPE_FLOAT && comps == 4) {
- uint i, j, k;
- const float(*rowA)[4] = (const float(*)[4]) srcRowA;
- const float(*rowB)[4] = (const float(*)[4]) srcRowB;
- float(*dst)[4] = (float(*)[4]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_FLOAT && comps == 3) {
- uint i, j, k;
- const float(*rowA)[3] = (const float(*)[3]) srcRowA;
- const float(*rowB)[3] = (const float(*)[3]) srcRowB;
- float(*dst)[3] = (float(*)[3]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_FLOAT && comps == 2) {
- uint i, j, k;
- const float(*rowA)[2] = (const float(*)[2]) srcRowA;
- const float(*rowB)[2] = (const float(*)[2]) srcRowB;
- float(*dst)[2] = (float(*)[2]) dstRow;
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_FLOAT && comps == 1) {
- uint i, j, k;
- const float *rowA = (const float *) srcRowA;
- const float *rowB = (const float *) srcRowB;
- float *dst = (float *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- dst[i] = (rowA[j] + rowA[k] + rowB[j] + rowB[k]) * 0.25F;
- }
- }
-
- else if (datatype == DTYPE_HALF_FLOAT && comps == 4) {
- uint i, j, k, comp;
- const half_float(*rowA)[4] = (const half_float(*)[4]) srcRowA;
- const half_float(*rowB)[4] = (const half_float(*)[4]) srcRowB;
- half_float(*dst)[4] = (half_float(*)[4]) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- for (comp = 0; comp < 4; comp++) {
- float aj, ak, bj, bk;
- aj = util_half_to_float(rowA[j][comp]);
- ak = util_half_to_float(rowA[k][comp]);
- bj = util_half_to_float(rowB[j][comp]);
- bk = util_half_to_float(rowB[k][comp]);
- dst[i][comp] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
- }
- else if (datatype == DTYPE_HALF_FLOAT && comps == 3) {
- uint i, j, k, comp;
- const half_float(*rowA)[3] = (const half_float(*)[3]) srcRowA;
- const half_float(*rowB)[3] = (const half_float(*)[3]) srcRowB;
- half_float(*dst)[3] = (half_float(*)[3]) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- for (comp = 0; comp < 3; comp++) {
- float aj, ak, bj, bk;
- aj = util_half_to_float(rowA[j][comp]);
- ak = util_half_to_float(rowA[k][comp]);
- bj = util_half_to_float(rowB[j][comp]);
- bk = util_half_to_float(rowB[k][comp]);
- dst[i][comp] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
- }
- else if (datatype == DTYPE_HALF_FLOAT && comps == 2) {
- uint i, j, k, comp;
- const half_float(*rowA)[2] = (const half_float(*)[2]) srcRowA;
- const half_float(*rowB)[2] = (const half_float(*)[2]) srcRowB;
- half_float(*dst)[2] = (half_float(*)[2]) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- for (comp = 0; comp < 2; comp++) {
- float aj, ak, bj, bk;
- aj = util_half_to_float(rowA[j][comp]);
- ak = util_half_to_float(rowA[k][comp]);
- bj = util_half_to_float(rowB[j][comp]);
- bk = util_half_to_float(rowB[k][comp]);
- dst[i][comp] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
- }
- else if (datatype == DTYPE_HALF_FLOAT && comps == 1) {
- uint i, j, k;
- const half_float *rowA = (const half_float *) srcRowA;
- const half_float *rowB = (const half_float *) srcRowB;
- half_float *dst = (half_float *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- float aj, ak, bj, bk;
- aj = util_half_to_float(rowA[j]);
- ak = util_half_to_float(rowA[k]);
- bj = util_half_to_float(rowB[j]);
- bk = util_half_to_float(rowB[k]);
- dst[i] = util_float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
-
- else if (datatype == DTYPE_UINT && comps == 1) {
- uint i, j, k;
- const uint *rowA = (const uint *) srcRowA;
- const uint *rowB = (const uint *) srcRowB;
- uint *dst = (uint *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- dst[i] = rowA[j] / 4 + rowA[k] / 4 + rowB[j] / 4 + rowB[k] / 4;
- }
- }
-
- else if (datatype == DTYPE_USHORT_5_6_5 && comps == 3) {
- uint i, j, k;
- const ushort *rowA = (const ushort *) srcRowA;
- const ushort *rowB = (const ushort *) srcRowB;
- ushort *dst = (ushort *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0x1f;
- const int rowAr1 = rowA[k] & 0x1f;
- const int rowBr0 = rowB[j] & 0x1f;
- const int rowBr1 = rowB[k] & 0x1f;
- const int rowAg0 = (rowA[j] >> 5) & 0x3f;
- const int rowAg1 = (rowA[k] >> 5) & 0x3f;
- const int rowBg0 = (rowB[j] >> 5) & 0x3f;
- const int rowBg1 = (rowB[k] >> 5) & 0x3f;
- const int rowAb0 = (rowA[j] >> 11) & 0x1f;
- const int rowAb1 = (rowA[k] >> 11) & 0x1f;
- const int rowBb0 = (rowB[j] >> 11) & 0x1f;
- const int rowBb1 = (rowB[k] >> 11) & 0x1f;
- const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
- const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
- const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
- dst[i] = (blue << 11) | (green << 5) | red;
- }
- }
- else if (datatype == DTYPE_USHORT_4_4_4_4 && comps == 4) {
- uint i, j, k;
- const ushort *rowA = (const ushort *) srcRowA;
- const ushort *rowB = (const ushort *) srcRowB;
- ushort *dst = (ushort *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0xf;
- const int rowAr1 = rowA[k] & 0xf;
- const int rowBr0 = rowB[j] & 0xf;
- const int rowBr1 = rowB[k] & 0xf;
- const int rowAg0 = (rowA[j] >> 4) & 0xf;
- const int rowAg1 = (rowA[k] >> 4) & 0xf;
- const int rowBg0 = (rowB[j] >> 4) & 0xf;
- const int rowBg1 = (rowB[k] >> 4) & 0xf;
- const int rowAb0 = (rowA[j] >> 8) & 0xf;
- const int rowAb1 = (rowA[k] >> 8) & 0xf;
- const int rowBb0 = (rowB[j] >> 8) & 0xf;
- const int rowBb1 = (rowB[k] >> 8) & 0xf;
- const int rowAa0 = (rowA[j] >> 12) & 0xf;
- const int rowAa1 = (rowA[k] >> 12) & 0xf;
- const int rowBa0 = (rowB[j] >> 12) & 0xf;
- const int rowBa1 = (rowB[k] >> 12) & 0xf;
- const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
- const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
- const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
- const int alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
- dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red;
- }
- }
- else if (datatype == DTYPE_USHORT_1_5_5_5_REV && comps == 4) {
- uint i, j, k;
- const ushort *rowA = (const ushort *) srcRowA;
- const ushort *rowB = (const ushort *) srcRowB;
- ushort *dst = (ushort *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0x1f;
- const int rowAr1 = rowA[k] & 0x1f;
- const int rowBr0 = rowB[j] & 0x1f;
- const int rowBr1 = rowB[k] & 0x1f;
- const int rowAg0 = (rowA[j] >> 5) & 0x1f;
- const int rowAg1 = (rowA[k] >> 5) & 0x1f;
- const int rowBg0 = (rowB[j] >> 5) & 0x1f;
- const int rowBg1 = (rowB[k] >> 5) & 0x1f;
- const int rowAb0 = (rowA[j] >> 10) & 0x1f;
- const int rowAb1 = (rowA[k] >> 10) & 0x1f;
- const int rowBb0 = (rowB[j] >> 10) & 0x1f;
- const int rowBb1 = (rowB[k] >> 10) & 0x1f;
- const int rowAa0 = (rowA[j] >> 15) & 0x1;
- const int rowAa1 = (rowA[k] >> 15) & 0x1;
- const int rowBa0 = (rowB[j] >> 15) & 0x1;
- const int rowBa1 = (rowB[k] >> 15) & 0x1;
- const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
- const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
- const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
- const int alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 2;
- dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red;
- }
- }
- else if (datatype == DTYPE_UBYTE_3_3_2 && comps == 3) {
- uint i, j, k;
- const ubyte *rowA = (const ubyte *) srcRowA;
- const ubyte *rowB = (const ubyte *) srcRowB;
- ubyte *dst = (ubyte *) dstRow;
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0x3;
- const int rowAr1 = rowA[k] & 0x3;
- const int rowBr0 = rowB[j] & 0x3;
- const int rowBr1 = rowB[k] & 0x3;
- const int rowAg0 = (rowA[j] >> 2) & 0x7;
- const int rowAg1 = (rowA[k] >> 2) & 0x7;
- const int rowBg0 = (rowB[j] >> 2) & 0x7;
- const int rowBg1 = (rowB[k] >> 2) & 0x7;
- const int rowAb0 = (rowA[j] >> 5) & 0x7;
- const int rowAb1 = (rowA[k] >> 5) & 0x7;
- const int rowBb0 = (rowB[j] >> 5) & 0x7;
- const int rowBb1 = (rowB[k] >> 5) & 0x7;
- const int red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 2;
- const int green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 2;
- const int blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 2;
- dst[i] = (blue << 5) | (green << 2) | red;
- }
- }
- else {
- debug_printf("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(enum dtype datatype, uint comps, int srcWidth,
- const void *srcRowA, const void *srcRowB,
- const void *srcRowC, const void *srcRowD,
- int dstWidth, void *dstRow)
-{
- const uint k0 = (srcWidth == dstWidth) ? 0 : 1;
- const uint colStride = (srcWidth == dstWidth) ? 1 : 2;
- uint i, j, k;
-
- assert(comps >= 1);
- assert(comps <= 4);
-
- if ((datatype == DTYPE_UBYTE) && (comps == 4)) {
- DECLARE_ROW_POINTERS(ubyte, 4);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- FILTER_3D(1);
- FILTER_3D(2);
- FILTER_3D(3);
- }
- }
- else if ((datatype == DTYPE_UBYTE) && (comps == 3)) {
- DECLARE_ROW_POINTERS(ubyte, 3);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- FILTER_3D(1);
- FILTER_3D(2);
- }
- }
- else if ((datatype == DTYPE_UBYTE) && (comps == 2)) {
- DECLARE_ROW_POINTERS(ubyte, 2);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- FILTER_3D(1);
- }
- }
- else if ((datatype == DTYPE_UBYTE) && (comps == 1)) {
- DECLARE_ROW_POINTERS(ubyte, 1);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- }
- }
- else if ((datatype == DTYPE_USHORT) && (comps == 4)) {
- DECLARE_ROW_POINTERS(ushort, 4);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- FILTER_3D(1);
- FILTER_3D(2);
- FILTER_3D(3);
- }
- }
- else if ((datatype == DTYPE_USHORT) && (comps == 3)) {
- DECLARE_ROW_POINTERS(ushort, 3);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- FILTER_3D(1);
- FILTER_3D(2);
- }
- }
- else if ((datatype == DTYPE_USHORT) && (comps == 2)) {
- DECLARE_ROW_POINTERS(ushort, 2);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- FILTER_3D(1);
- }
- }
- else if ((datatype == DTYPE_USHORT) && (comps == 1)) {
- DECLARE_ROW_POINTERS(ushort, 1);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_3D(0);
- }
- }
- else if ((datatype == DTYPE_FLOAT) && (comps == 4)) {
- DECLARE_ROW_POINTERS(float, 4);
-
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_FLOAT) && (comps == 3)) {
- DECLARE_ROW_POINTERS(float, 3);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_F_3D(0);
- FILTER_F_3D(1);
- FILTER_F_3D(2);
- }
- }
- else if ((datatype == DTYPE_FLOAT) && (comps == 2)) {
- DECLARE_ROW_POINTERS(float, 2);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_F_3D(0);
- FILTER_F_3D(1);
- }
- }
- else if ((datatype == DTYPE_FLOAT) && (comps == 1)) {
- DECLARE_ROW_POINTERS(float, 1);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_F_3D(0);
- }
- }
- else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 4)) {
- DECLARE_ROW_POINTERS(half_float, 4);
-
- for (i = j = 0, k = k0; i < (uint) 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 == DTYPE_HALF_FLOAT) && (comps == 3)) {
- DECLARE_ROW_POINTERS(half_float, 4);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_HF_3D(0);
- FILTER_HF_3D(1);
- FILTER_HF_3D(2);
- }
- }
- else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 2)) {
- DECLARE_ROW_POINTERS(half_float, 4);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_HF_3D(0);
- FILTER_HF_3D(1);
- }
- }
- else if ((datatype == DTYPE_HALF_FLOAT) && (comps == 1)) {
- DECLARE_ROW_POINTERS(half_float, 4);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- FILTER_HF_3D(0);
- }
- }
- else if ((datatype == DTYPE_UINT) && (comps == 1)) {
- const uint *rowA = (const uint *) srcRowA;
- const uint *rowB = (const uint *) srcRowB;
- const uint *rowC = (const uint *) srcRowC;
- const uint *rowD = (const uint *) srcRowD;
- float *dst = (float *) dstRow;
-
- for (i = j = 0, k = k0; i < (uint) 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] = (float)((double) tmp * 0.125);
- }
- }
- else if ((datatype == DTYPE_USHORT_5_6_5) && (comps == 3)) {
- DECLARE_ROW_POINTERS0(ushort);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0x1f;
- const int rowAr1 = rowA[k] & 0x1f;
- const int rowBr0 = rowB[j] & 0x1f;
- const int rowBr1 = rowB[k] & 0x1f;
- const int rowCr0 = rowC[j] & 0x1f;
- const int rowCr1 = rowC[k] & 0x1f;
- const int rowDr0 = rowD[j] & 0x1f;
- const int rowDr1 = rowD[k] & 0x1f;
- const int rowAg0 = (rowA[j] >> 5) & 0x3f;
- const int rowAg1 = (rowA[k] >> 5) & 0x3f;
- const int rowBg0 = (rowB[j] >> 5) & 0x3f;
- const int rowBg1 = (rowB[k] >> 5) & 0x3f;
- const int rowCg0 = (rowC[j] >> 5) & 0x3f;
- const int rowCg1 = (rowC[k] >> 5) & 0x3f;
- const int rowDg0 = (rowD[j] >> 5) & 0x3f;
- const int rowDg1 = (rowD[k] >> 5) & 0x3f;
- const int rowAb0 = (rowA[j] >> 11) & 0x1f;
- const int rowAb1 = (rowA[k] >> 11) & 0x1f;
- const int rowBb0 = (rowB[j] >> 11) & 0x1f;
- const int rowBb1 = (rowB[k] >> 11) & 0x1f;
- const int rowCb0 = (rowC[j] >> 11) & 0x1f;
- const int rowCb1 = (rowC[k] >> 11) & 0x1f;
- const int rowDb0 = (rowD[j] >> 11) & 0x1f;
- const int rowDb1 = (rowD[k] >> 11) & 0x1f;
- const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
- rowCr0, rowCr1, rowDr0, rowDr1);
- const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
- rowCg0, rowCg1, rowDg0, rowDg1);
- const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
- rowCb0, rowCb1, rowDb0, rowDb1);
- dst[i] = (b << 11) | (g << 5) | r;
- }
- }
- else if ((datatype == DTYPE_USHORT_4_4_4_4) && (comps == 4)) {
- DECLARE_ROW_POINTERS0(ushort);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0xf;
- const int rowAr1 = rowA[k] & 0xf;
- const int rowBr0 = rowB[j] & 0xf;
- const int rowBr1 = rowB[k] & 0xf;
- const int rowCr0 = rowC[j] & 0xf;
- const int rowCr1 = rowC[k] & 0xf;
- const int rowDr0 = rowD[j] & 0xf;
- const int rowDr1 = rowD[k] & 0xf;
- const int rowAg0 = (rowA[j] >> 4) & 0xf;
- const int rowAg1 = (rowA[k] >> 4) & 0xf;
- const int rowBg0 = (rowB[j] >> 4) & 0xf;
- const int rowBg1 = (rowB[k] >> 4) & 0xf;
- const int rowCg0 = (rowC[j] >> 4) & 0xf;
- const int rowCg1 = (rowC[k] >> 4) & 0xf;
- const int rowDg0 = (rowD[j] >> 4) & 0xf;
- const int rowDg1 = (rowD[k] >> 4) & 0xf;
- const int rowAb0 = (rowA[j] >> 8) & 0xf;
- const int rowAb1 = (rowA[k] >> 8) & 0xf;
- const int rowBb0 = (rowB[j] >> 8) & 0xf;
- const int rowBb1 = (rowB[k] >> 8) & 0xf;
- const int rowCb0 = (rowC[j] >> 8) & 0xf;
- const int rowCb1 = (rowC[k] >> 8) & 0xf;
- const int rowDb0 = (rowD[j] >> 8) & 0xf;
- const int rowDb1 = (rowD[k] >> 8) & 0xf;
- const int rowAa0 = (rowA[j] >> 12) & 0xf;
- const int rowAa1 = (rowA[k] >> 12) & 0xf;
- const int rowBa0 = (rowB[j] >> 12) & 0xf;
- const int rowBa1 = (rowB[k] >> 12) & 0xf;
- const int rowCa0 = (rowC[j] >> 12) & 0xf;
- const int rowCa1 = (rowC[k] >> 12) & 0xf;
- const int rowDa0 = (rowD[j] >> 12) & 0xf;
- const int rowDa1 = (rowD[k] >> 12) & 0xf;
- const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
- rowCr0, rowCr1, rowDr0, rowDr1);
- const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
- rowCg0, rowCg1, rowDg0, rowDg1);
- const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
- rowCb0, rowCb1, rowDb0, rowDb1);
- const int a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
- rowCa0, rowCa1, rowDa0, rowDa1);
-
- dst[i] = (a << 12) | (b << 8) | (g << 4) | r;
- }
- }
- else if ((datatype == DTYPE_USHORT_1_5_5_5_REV) && (comps == 4)) {
- DECLARE_ROW_POINTERS0(ushort);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0x1f;
- const int rowAr1 = rowA[k] & 0x1f;
- const int rowBr0 = rowB[j] & 0x1f;
- const int rowBr1 = rowB[k] & 0x1f;
- const int rowCr0 = rowC[j] & 0x1f;
- const int rowCr1 = rowC[k] & 0x1f;
- const int rowDr0 = rowD[j] & 0x1f;
- const int rowDr1 = rowD[k] & 0x1f;
- const int rowAg0 = (rowA[j] >> 5) & 0x1f;
- const int rowAg1 = (rowA[k] >> 5) & 0x1f;
- const int rowBg0 = (rowB[j] >> 5) & 0x1f;
- const int rowBg1 = (rowB[k] >> 5) & 0x1f;
- const int rowCg0 = (rowC[j] >> 5) & 0x1f;
- const int rowCg1 = (rowC[k] >> 5) & 0x1f;
- const int rowDg0 = (rowD[j] >> 5) & 0x1f;
- const int rowDg1 = (rowD[k] >> 5) & 0x1f;
- const int rowAb0 = (rowA[j] >> 10) & 0x1f;
- const int rowAb1 = (rowA[k] >> 10) & 0x1f;
- const int rowBb0 = (rowB[j] >> 10) & 0x1f;
- const int rowBb1 = (rowB[k] >> 10) & 0x1f;
- const int rowCb0 = (rowC[j] >> 10) & 0x1f;
- const int rowCb1 = (rowC[k] >> 10) & 0x1f;
- const int rowDb0 = (rowD[j] >> 10) & 0x1f;
- const int rowDb1 = (rowD[k] >> 10) & 0x1f;
- const int rowAa0 = (rowA[j] >> 15) & 0x1;
- const int rowAa1 = (rowA[k] >> 15) & 0x1;
- const int rowBa0 = (rowB[j] >> 15) & 0x1;
- const int rowBa1 = (rowB[k] >> 15) & 0x1;
- const int rowCa0 = (rowC[j] >> 15) & 0x1;
- const int rowCa1 = (rowC[k] >> 15) & 0x1;
- const int rowDa0 = (rowD[j] >> 15) & 0x1;
- const int rowDa1 = (rowD[k] >> 15) & 0x1;
- const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
- rowCr0, rowCr1, rowDr0, rowDr1);
- const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
- rowCg0, rowCg1, rowDg0, rowDg1);
- const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
- rowCb0, rowCb1, rowDb0, rowDb1);
- const int a = FILTER_SUM_3D(rowAa0, rowAa1, rowBa0, rowBa1,
- rowCa0, rowCa1, rowDa0, rowDa1);
-
- dst[i] = (a << 15) | (b << 10) | (g << 5) | r;
- }
- }
- else if ((datatype == DTYPE_UBYTE_3_3_2) && (comps == 3)) {
- DECLARE_ROW_POINTERS0(ushort);
-
- for (i = j = 0, k = k0; i < (uint) dstWidth;
- i++, j += colStride, k += colStride) {
- const int rowAr0 = rowA[j] & 0x3;
- const int rowAr1 = rowA[k] & 0x3;
- const int rowBr0 = rowB[j] & 0x3;
- const int rowBr1 = rowB[k] & 0x3;
- const int rowCr0 = rowC[j] & 0x3;
- const int rowCr1 = rowC[k] & 0x3;
- const int rowDr0 = rowD[j] & 0x3;
- const int rowDr1 = rowD[k] & 0x3;
- const int rowAg0 = (rowA[j] >> 2) & 0x7;
- const int rowAg1 = (rowA[k] >> 2) & 0x7;
- const int rowBg0 = (rowB[j] >> 2) & 0x7;
- const int rowBg1 = (rowB[k] >> 2) & 0x7;
- const int rowCg0 = (rowC[j] >> 2) & 0x7;
- const int rowCg1 = (rowC[k] >> 2) & 0x7;
- const int rowDg0 = (rowD[j] >> 2) & 0x7;
- const int rowDg1 = (rowD[k] >> 2) & 0x7;
- const int rowAb0 = (rowA[j] >> 5) & 0x7;
- const int rowAb1 = (rowA[k] >> 5) & 0x7;
- const int rowBb0 = (rowB[j] >> 5) & 0x7;
- const int rowBb1 = (rowB[k] >> 5) & 0x7;
- const int rowCb0 = (rowC[j] >> 5) & 0x7;
- const int rowCb1 = (rowC[k] >> 5) & 0x7;
- const int rowDb0 = (rowD[j] >> 5) & 0x7;
- const int rowDb1 = (rowD[k] >> 5) & 0x7;
- const int r = FILTER_SUM_3D(rowAr0, rowAr1, rowBr0, rowBr1,
- rowCr0, rowCr1, rowDr0, rowDr1);
- const int g = FILTER_SUM_3D(rowAg0, rowAg1, rowBg0, rowBg1,
- rowCg0, rowCg1, rowDg0, rowDg1);
- const int b = FILTER_SUM_3D(rowAb0, rowAb1, rowBb0, rowBb1,
- rowCb0, rowCb1, rowDb0, rowDb1);
- dst[i] = (b << 5) | (g << 2) | r;
- }
- }
- else {
- debug_printf("bad format in do_row_3D()");
- }
-}
-
-
-
-static void
-format_to_type_comps(enum pipe_format pformat,
- enum dtype *datatype, uint *comps)
-{
- /* XXX I think this could be implemented in terms of the pf_*() functions */
- switch (pformat) {
- case PIPE_FORMAT_B8G8R8A8_UNORM:
- case PIPE_FORMAT_B8G8R8X8_UNORM:
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- case PIPE_FORMAT_X8R8G8B8_UNORM:
- case PIPE_FORMAT_A8B8G8R8_SRGB:
- case PIPE_FORMAT_X8B8G8R8_SRGB:
- case PIPE_FORMAT_B8G8R8A8_SRGB:
- case PIPE_FORMAT_B8G8R8X8_SRGB:
- case PIPE_FORMAT_A8R8G8B8_SRGB:
- case PIPE_FORMAT_X8R8G8B8_SRGB:
- case PIPE_FORMAT_R8G8B8_SRGB:
- *datatype = DTYPE_UBYTE;
- *comps = 4;
- return;
- case PIPE_FORMAT_B5G5R5X1_UNORM:
- case PIPE_FORMAT_B5G5R5A1_UNORM:
- *datatype = DTYPE_USHORT_1_5_5_5_REV;
- *comps = 4;
- return;
- case PIPE_FORMAT_B4G4R4A4_UNORM:
- *datatype = DTYPE_USHORT_4_4_4_4;
- *comps = 4;
- return;
- case PIPE_FORMAT_B5G6R5_UNORM:
- *datatype = DTYPE_USHORT_5_6_5;
- *comps = 3;
- return;
- case PIPE_FORMAT_L8_UNORM:
- case PIPE_FORMAT_L8_SRGB:
- case PIPE_FORMAT_A8_UNORM:
- case PIPE_FORMAT_I8_UNORM:
- *datatype = DTYPE_UBYTE;
- *comps = 1;
- return;
- case PIPE_FORMAT_L8A8_UNORM:
- case PIPE_FORMAT_L8A8_SRGB:
- *datatype = DTYPE_UBYTE;
- *comps = 2;
- return;
- default:
- assert(0);
- *datatype = DTYPE_UBYTE;
- *comps = 0;
- break;
- }
-}
-
-
-static void
-reduce_1d(enum pipe_format pformat,
- int srcWidth, const ubyte *srcPtr,
- int dstWidth, ubyte *dstPtr)
-{
- enum dtype datatype;
- uint comps;
-
- format_to_type_comps(pformat, &datatype, &comps);
-
- /* we just duplicate the input row, kind of hack, saves code */
- do_row(datatype, comps,
- srcWidth, srcPtr, srcPtr,
- dstWidth, dstPtr);
-}
-
-
-/**
- * Strides are in bytes. If zero, it'll be computed as width * bpp.
- */
-static void
-reduce_2d(enum pipe_format pformat,
- int srcWidth, int srcHeight,
- int srcRowStride, const ubyte *srcPtr,
- int dstWidth, int dstHeight,
- int dstRowStride, ubyte *dstPtr)
-{
- enum dtype datatype;
- uint comps;
- const int bpt = util_format_get_blocksize(pformat);
- const ubyte *srcA, *srcB;
- ubyte *dst;
- int row;
-
- format_to_type_comps(pformat, &datatype, &comps);
-
- if (!srcRowStride)
- srcRowStride = bpt * srcWidth;
-
- if (!dstRowStride)
- dstRowStride = bpt * dstWidth;
-
- /* Compute src and dst pointers */
- srcA = srcPtr;
- if (srcHeight > 1)
- srcB = srcA + srcRowStride;
- else
- srcB = srcA;
- dst = dstPtr;
-
- for (row = 0; row < dstHeight; row++) {
- do_row(datatype, comps,
- srcWidth, srcA, srcB,
- dstWidth, dst);
- srcA += 2 * srcRowStride;
- srcB += 2 * srcRowStride;
- dst += dstRowStride;
- }
-}
-
-
-static void
-reduce_3d(enum pipe_format pformat,
- int srcWidth, int srcHeight, int srcDepth,
- int srcRowStride, int srcImageStride, const ubyte *srcPtr,
- int dstWidth, int dstHeight, int dstDepth,
- int dstRowStride, int dstImageStride, ubyte *dstPtr)
-{
- const int bpt = util_format_get_blocksize(pformat);
- int img, row;
- int srcImageOffset, srcRowOffset;
- enum dtype datatype;
- uint comps;
-
- format_to_type_comps(pformat, &datatype, &comps);
-
- /* XXX I think we should rather assert those strides */
- if (!srcImageStride)
- srcImageStride = srcWidth * srcHeight * bpt;
- if (!dstImageStride)
- dstImageStride = dstWidth * dstHeight * bpt;
-
- if (!srcRowStride)
- srcRowStride = srcWidth * bpt;
- if (!dstRowStride)
- dstRowStride = dstWidth * bpt;
-
- /* Offset between adjacent src images to be averaged together */
- srcImageOffset = (srcDepth == dstDepth) ? 0 : srcImageStride;
-
- /* 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 < dstDepth; img++) {
- /* first source image pointer */
- const ubyte *imgSrcA = srcPtr
- + img * (srcImageStride + srcImageOffset);
- /* second source image pointer */
- const ubyte *imgSrcB = imgSrcA + srcImageOffset;
- /* address of the dest image */
- ubyte *imgDst = dstPtr + img * dstImageStride;
-
- /* setup the four source row pointers and the dest row pointer */
- const ubyte *srcImgARowA = imgSrcA;
- const ubyte *srcImgARowB = imgSrcA + srcRowOffset;
- const ubyte *srcImgBRowA = imgSrcB;
- const ubyte *srcImgBRowB = imgSrcB + srcRowOffset;
- ubyte *dstImgRow = imgDst;
-
- for (row = 0; row < dstHeight; row++) {
- do_row_3D(datatype, comps, srcWidth,
- srcImgARowA, srcImgARowB,
- srcImgBRowA, srcImgBRowB,
- dstWidth, dstImgRow);
-
- /* advance to next rows */
- srcImgARowA += srcRowStride + srcRowOffset;
- srcImgARowB += srcRowStride + srcRowOffset;
- srcImgBRowA += srcRowStride + srcRowOffset;
- srcImgBRowB += srcRowStride + srcRowOffset;
- dstImgRow += dstImageStride;
- }
- }
-}
-
-
-
-
-static void
-make_1d_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_resource *pt,
- uint layer, uint baseLevel, uint lastLevel)
-{
- struct pipe_context *pipe = ctx->pipe;
- uint dstLevel;
-
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
- struct pipe_transfer *srcTrans, *dstTrans;
- void *srcMap, *dstMap;
-
- srcMap = pipe_transfer_map(pipe, pt, srcLevel, layer,
- PIPE_TRANSFER_READ, 0, 0,
- u_minify(pt->width0, srcLevel),
- u_minify(pt->height0, srcLevel), &srcTrans);
- dstMap = pipe_transfer_map(pipe, pt, dstLevel, layer,
- PIPE_TRANSFER_WRITE, 0, 0,
- u_minify(pt->width0, dstLevel),
- u_minify(pt->height0, dstLevel), &dstTrans);
-
- reduce_1d(pt->format,
- srcTrans->box.width, srcMap,
- dstTrans->box.width, dstMap);
-
- pipe->transfer_unmap(pipe, srcTrans);
- pipe->transfer_unmap(pipe, dstTrans);
- }
-}
-
-
-static void
-make_2d_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_resource *pt,
- uint layer, uint baseLevel, uint lastLevel)
-{
- struct pipe_context *pipe = ctx->pipe;
- uint dstLevel;
-
- assert(util_format_get_blockwidth(pt->format) == 1);
- assert(util_format_get_blockheight(pt->format) == 1);
-
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
- struct pipe_transfer *srcTrans, *dstTrans;
- ubyte *srcMap, *dstMap;
-
- srcMap = pipe_transfer_map(pipe, pt, srcLevel, layer,
- PIPE_TRANSFER_READ, 0, 0,
- u_minify(pt->width0, srcLevel),
- u_minify(pt->height0, srcLevel), &srcTrans);
- dstMap = pipe_transfer_map(pipe, pt, dstLevel, layer,
- PIPE_TRANSFER_WRITE, 0, 0,
- u_minify(pt->width0, dstLevel),
- u_minify(pt->height0, dstLevel), &dstTrans);
-
- reduce_2d(pt->format,
- srcTrans->box.width, srcTrans->box.height,
- srcTrans->stride, srcMap,
- dstTrans->box.width, dstTrans->box.height,
- dstTrans->stride, dstMap);
-
- pipe->transfer_unmap(pipe, srcTrans);
- pipe->transfer_unmap(pipe, dstTrans);
- }
-}
-
-
-/* XXX looks a bit more like it could work now but need to test */
-static void
-make_3d_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_resource *pt,
- uint face, uint baseLevel, uint lastLevel)
-{
- struct pipe_context *pipe = ctx->pipe;
- uint dstLevel;
- struct pipe_box src_box, dst_box;
-
- assert(util_format_get_blockwidth(pt->format) == 1);
- assert(util_format_get_blockheight(pt->format) == 1);
-
- src_box.x = src_box.y = src_box.z = 0;
- dst_box.x = dst_box.y = dst_box.z = 0;
-
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
- struct pipe_transfer *srcTrans, *dstTrans;
- ubyte *srcMap, *dstMap;
- struct pipe_box src_box, dst_box;
- src_box.width = u_minify(pt->width0, srcLevel);
- src_box.height = u_minify(pt->height0, srcLevel);
- src_box.depth = u_minify(pt->depth0, srcLevel);
- dst_box.width = u_minify(pt->width0, dstLevel);
- dst_box.height = u_minify(pt->height0, dstLevel);
- dst_box.depth = u_minify(pt->depth0, dstLevel);
-
- srcMap = pipe->transfer_map(pipe, pt, srcLevel,
- PIPE_TRANSFER_READ,
- &src_box, &srcTrans);
- dstMap = pipe->transfer_map(pipe, pt, dstLevel,
- PIPE_TRANSFER_WRITE,
- &dst_box, &dstTrans);
-
- reduce_3d(pt->format,
- srcTrans->box.width, srcTrans->box.height, srcTrans->box.depth,
- srcTrans->stride, srcTrans->layer_stride, srcMap,
- dstTrans->box.width, dstTrans->box.height, dstTrans->box.depth,
- dstTrans->stride, dstTrans->layer_stride, dstMap);
-
- pipe->transfer_unmap(pipe, srcTrans);
- pipe->transfer_unmap(pipe, dstTrans);
- }
-}
-
-
-static void
-fallback_gen_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_resource *pt,
- uint layer, uint baseLevel, uint lastLevel)
-{
- switch (pt->target) {
- case PIPE_TEXTURE_1D:
- make_1d_mipmap(ctx, pt, layer, baseLevel, lastLevel);
- break;
- case PIPE_TEXTURE_2D:
- case PIPE_TEXTURE_RECT:
- case PIPE_TEXTURE_CUBE:
- make_2d_mipmap(ctx, pt, layer, baseLevel, lastLevel);
- break;
- case PIPE_TEXTURE_3D:
- make_3d_mipmap(ctx, pt, layer, baseLevel, lastLevel);
- break;
- default:
- assert(0);
- }
-}
-
-
/**
* Create a mipmap generation context.
* The idea is to create one of these and re-use it each time we need to
pt->nr_samples,
is_depth ? PIPE_BIND_DEPTH_STENCIL :
PIPE_BIND_RENDER_TARGET)) {
- fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel);
+ /* The caller should check if the format is renderable. */
+ assert(0);
return;
}
projects / mesa.git / commitdiff