/**************************************************************************
*
- * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2008 VMware, Inc.
* All Rights Reserved.
+ * Copyright 2008 VMware, Inc. All rights reserved.
+ * Copyright 2014 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 generation utility
*
- * @author Brian Paul
+ * @author Brian Paul, Marek Olšák
*/
-#include "pipe/p_context.h"
-#include "pipe/p_debug.h"
-#include "pipe/p_defines.h"
-#include "pipe/p_inlines.h"
-#include "pipe/p_winsys.h"
-#include "pipe/p_shader_tokens.h"
-
-#include "util/u_memory.h"
-#include "util/u_draw_quad.h"
#include "util/u_gen_mipmap.h"
-#include "util/u_simple_shaders.h"
-
-#include "tgsi/tgsi_build.h"
-#include "tgsi/tgsi_dump.h"
-#include "tgsi/tgsi_parse.h"
-
-#include "cso_cache/cso_context.h"
-
-
-struct gen_mipmap_state
-{
- struct pipe_context *pipe;
- struct cso_context *cso;
-
- struct pipe_blend_state blend;
- struct pipe_depth_stencil_alpha_state depthstencil;
- struct pipe_rasterizer_state rasterizer;
- struct pipe_sampler_state sampler;
- struct pipe_viewport_state viewport;
-
- struct pipe_shader_state vert_shader;
- struct pipe_shader_state frag_shader;
- void *vs;
- void *fs;
-
- struct pipe_buffer *vbuf; /**< quad vertices */
- float vertices[4][2][4]; /**< vertex/texcoords for quad */
-};
-
-
-
-enum dtype
-{
- UBYTE,
- UBYTE_3_3_2,
- USHORT,
- USHORT_4_4_4_4,
- USHORT_5_6_5,
- USHORT_1_5_5_5_REV,
- UINT,
- FLOAT,
- HALF_FLOAT
-};
-
-
-typedef ushort half_float;
-
-
-#if 0
-extern half_float
-float_to_half(float f);
-
-extern float
-half_to_float(half_float h);
-#endif
-
-
-/**
- * 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 == 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 == 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 == 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 == 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 == 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 == 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 == 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 == 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 == 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 == 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 == 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 == 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;
- }
- }
-
-#if 0
- else if (datatype == 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 = half_to_float(rowA[j][comp]);
- ak = half_to_float(rowA[k][comp]);
- bj = half_to_float(rowB[j][comp]);
- bk = half_to_float(rowB[k][comp]);
- dst[i][comp] = float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
- }
- else if (datatype == 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 = half_to_float(rowA[j][comp]);
- ak = half_to_float(rowA[k][comp]);
- bj = half_to_float(rowB[j][comp]);
- bk = half_to_float(rowB[k][comp]);
- dst[i][comp] = float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
- }
- else if (datatype == 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 = half_to_float(rowA[j][comp]);
- ak = half_to_float(rowA[k][comp]);
- bj = half_to_float(rowB[j][comp]);
- bk = half_to_float(rowB[k][comp]);
- dst[i][comp] = float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
- }
- else if (datatype == 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 = half_to_float(rowA[j]);
- ak = half_to_float(rowA[k]);
- bj = half_to_float(rowB[j]);
- bk = half_to_float(rowB[k]);
- dst[i] = float_to_half((aj + ak + bj + bk) * 0.25F);
- }
- }
-#endif
-
- else if (datatype == 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 == 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 == 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 == 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] & 0xf;
- 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 == 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()");
- }
-}
-
-
-static void
-format_to_type_comps(enum pipe_format pformat,
- enum dtype *datatype, uint *comps)
-{
- switch (pformat) {
- case PIPE_FORMAT_A8R8G8B8_UNORM:
- case PIPE_FORMAT_X8R8G8B8_UNORM:
- case PIPE_FORMAT_B8G8R8A8_UNORM:
- case PIPE_FORMAT_B8G8R8X8_UNORM:
- *datatype = UBYTE;
- *comps = 4;
- return;
- case PIPE_FORMAT_A1R5G5B5_UNORM:
- *datatype = USHORT_1_5_5_5_REV;
- *comps = 4;
- return;
- case PIPE_FORMAT_A4R4G4B4_UNORM:
- *datatype = USHORT_4_4_4_4;
- *comps = 4;
- return;
- case PIPE_FORMAT_R5G6B5_UNORM:
- *datatype = USHORT_5_6_5;
- *comps = 3;
- return;
- case PIPE_FORMAT_L8_UNORM:
- case PIPE_FORMAT_A8_UNORM:
- case PIPE_FORMAT_I8_UNORM:
- *datatype = UBYTE;
- *comps = 1;
- return;
- case PIPE_FORMAT_A8L8_UNORM:
- *datatype = UBYTE;
- *comps = 2;
- return;
- default:
- assert(0);
- *datatype = 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 = pf_get_size(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
-make_1d_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_texture *pt,
- uint face, uint baseLevel, uint lastLevel)
-{
- struct pipe_context *pipe = ctx->pipe;
- struct pipe_screen *screen = pipe->screen;
- const uint zslice = 0;
- uint dstLevel;
-
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
- struct pipe_surface *srcSurf, *dstSurf;
- void *srcMap, *dstMap;
-
- srcSurf = screen->get_tex_surface(screen, pt, face, srcLevel, zslice,
- PIPE_BUFFER_USAGE_CPU_READ);
-
- dstSurf = screen->get_tex_surface(screen, pt, face, dstLevel, zslice,
- PIPE_BUFFER_USAGE_CPU_WRITE);
-
- srcMap = ((ubyte *) pipe_buffer_map(screen, srcSurf->buffer,
- PIPE_BUFFER_USAGE_CPU_READ)
- + srcSurf->offset);
- dstMap = ((ubyte *) pipe_buffer_map(screen, dstSurf->buffer,
- PIPE_BUFFER_USAGE_CPU_WRITE)
- + dstSurf->offset);
-
- reduce_1d(pt->format,
- srcSurf->width, srcMap,
- dstSurf->width, dstMap);
-
- pipe_buffer_unmap(screen, srcSurf->buffer);
- pipe_buffer_unmap(screen, dstSurf->buffer);
-
- pipe_surface_reference(&srcSurf, NULL);
- pipe_surface_reference(&dstSurf, NULL);
- }
-}
-
-
-static void
-make_2d_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_texture *pt,
- uint face, uint baseLevel, uint lastLevel)
-{
- struct pipe_context *pipe = ctx->pipe;
- struct pipe_screen *screen = pipe->screen;
- const uint zslice = 0;
- uint dstLevel;
-
- assert(pt->block.width == 1);
- assert(pt->block.height == 1);
-
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
- struct pipe_surface *srcSurf, *dstSurf;
- ubyte *srcMap, *dstMap;
-
- srcSurf = screen->get_tex_surface(screen, pt, face, srcLevel, zslice,
- PIPE_BUFFER_USAGE_CPU_READ);
- dstSurf = screen->get_tex_surface(screen, pt, face, dstLevel, zslice,
- PIPE_BUFFER_USAGE_CPU_WRITE);
-
- srcMap = ((ubyte *) pipe_buffer_map(screen, srcSurf->buffer,
- PIPE_BUFFER_USAGE_CPU_READ)
- + srcSurf->offset);
- dstMap = ((ubyte *) pipe_buffer_map(screen, dstSurf->buffer,
- PIPE_BUFFER_USAGE_CPU_WRITE)
- + dstSurf->offset);
-
- reduce_2d(pt->format,
- srcSurf->width, srcSurf->height,
- srcSurf->stride, srcMap,
- dstSurf->width, dstSurf->height,
- dstSurf->stride, dstMap);
-
- pipe_buffer_unmap(screen, srcSurf->buffer);
- pipe_buffer_unmap(screen, dstSurf->buffer);
-
- pipe_surface_reference(&srcSurf, NULL);
- pipe_surface_reference(&dstSurf, NULL);
- }
-}
-
-
-static void
-make_3d_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_texture *pt,
- uint face, uint baseLevel, uint lastLevel)
-{
-}
-
-
-static void
-fallback_gen_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_texture *pt,
- uint face, uint baseLevel, uint lastLevel)
-{
- switch (pt->target) {
- case PIPE_TEXTURE_1D:
- make_1d_mipmap(ctx, pt, face, baseLevel, lastLevel);
- break;
- case PIPE_TEXTURE_2D:
- case PIPE_TEXTURE_CUBE:
- make_2d_mipmap(ctx, pt, face, baseLevel, lastLevel);
- break;
- case PIPE_TEXTURE_3D:
- make_3d_mipmap(ctx, pt, face, 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
- * generate a mipmap.
- */
-struct gen_mipmap_state *
-util_create_gen_mipmap(struct pipe_context *pipe,
- struct cso_context *cso)
-{
- struct gen_mipmap_state *ctx;
- uint i;
-
- ctx = CALLOC_STRUCT(gen_mipmap_state);
- if (!ctx)
- return NULL;
-
- ctx->pipe = pipe;
- ctx->cso = cso;
-
- /* disabled blending/masking */
- memset(&ctx->blend, 0, sizeof(ctx->blend));
- ctx->blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
- ctx->blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
- ctx->blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO;
- ctx->blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO;
- ctx->blend.colormask = PIPE_MASK_RGBA;
-
- /* no-op depth/stencil/alpha */
- memset(&ctx->depthstencil, 0, sizeof(ctx->depthstencil));
-
- /* rasterizer */
- memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer));
- ctx->rasterizer.front_winding = PIPE_WINDING_CW;
- ctx->rasterizer.cull_mode = PIPE_WINDING_NONE;
- ctx->rasterizer.bypass_clipping = 1;
- /*ctx->rasterizer.bypass_vs = 1;*/
- ctx->rasterizer.gl_rasterization_rules = 1;
-
- /* sampler state */
- memset(&ctx->sampler, 0, sizeof(ctx->sampler));
- ctx->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- ctx->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- ctx->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
- ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
- ctx->sampler.normalized_coords = 1;
-
- /* viewport state (identity, verts are in wincoords) */
- ctx->viewport.scale[0] = 1.0;
- ctx->viewport.scale[1] = 1.0;
- ctx->viewport.scale[2] = 1.0;
- ctx->viewport.scale[3] = 1.0;
- ctx->viewport.translate[0] = 0.0;
- ctx->viewport.translate[1] = 0.0;
- ctx->viewport.translate[2] = 0.0;
- ctx->viewport.translate[3] = 0.0;
-
- /* vertex shader */
- {
- const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
- TGSI_SEMANTIC_GENERIC };
- const uint semantic_indexes[] = { 0, 0 };
- ctx->vs = util_make_vertex_passthrough_shader(pipe, 2, semantic_names,
- semantic_indexes,
- &ctx->vert_shader);
- }
-
- /* fragment shader */
- ctx->fs = util_make_fragment_tex_shader(pipe, &ctx->frag_shader);
-
- ctx->vbuf = pipe_buffer_create(pipe->screen,
- 32,
- PIPE_BUFFER_USAGE_VERTEX,
- sizeof(ctx->vertices));
- if (!ctx->vbuf) {
- FREE(ctx);
- return NULL;
- }
-
- /* vertex data that doesn't change */
- for (i = 0; i < 4; i++) {
- ctx->vertices[i][0][2] = 0.0f; /* z */
- ctx->vertices[i][0][3] = 1.0f; /* w */
- ctx->vertices[i][1][2] = 0.0f; /* r */
- ctx->vertices[i][1][3] = 1.0f; /* q */
- }
-
- return ctx;
-}
-
-
-static void
-set_vertex_data(struct gen_mipmap_state *ctx, float width, float height)
-{
- void *buf;
-
- ctx->vertices[0][0][0] = 0.0f; /*x*/
- ctx->vertices[0][0][1] = 0.0f; /*y*/
- ctx->vertices[0][1][0] = 0.0f; /*s*/
- ctx->vertices[0][1][1] = 0.0f; /*t*/
-
- ctx->vertices[1][0][0] = width;
- ctx->vertices[1][0][1] = 0.0f;
- ctx->vertices[1][1][0] = 1.0f;
- ctx->vertices[1][1][1] = 0.0f;
-
- ctx->vertices[2][0][0] = width;
- ctx->vertices[2][0][1] = height;
- ctx->vertices[2][1][0] = 1.0f;
- ctx->vertices[2][1][1] = 1.0f;
-
- ctx->vertices[3][0][0] = 0.0f;
- ctx->vertices[3][0][1] = height;
- ctx->vertices[3][1][0] = 0.0f;
- ctx->vertices[3][1][1] = 1.0f;
-
- buf = pipe_buffer_map(ctx->pipe->screen, ctx->vbuf,
- PIPE_BUFFER_USAGE_CPU_WRITE);
-
- memcpy(buf, ctx->vertices, sizeof(ctx->vertices));
-
- pipe_buffer_unmap(ctx->pipe->screen, ctx->vbuf);
-}
-
-
-
-/**
- * Destroy a mipmap generation context
- */
-void
-util_destroy_gen_mipmap(struct gen_mipmap_state *ctx)
-{
- struct pipe_context *pipe = ctx->pipe;
-
- pipe->delete_vs_state(pipe, ctx->vs);
- pipe->delete_fs_state(pipe, ctx->fs);
-
- FREE((void*) ctx->vert_shader.tokens);
- FREE((void*) ctx->frag_shader.tokens);
-
- pipe_buffer_reference(pipe->screen, &ctx->vbuf, NULL);
-
- FREE(ctx);
-}
+#include "util/u_format.h"
+#include "util/u_inlines.h"
/**
* Generate mipmap images. It's assumed all needed texture memory is
* already allocated.
*
- * \param pt the texture to generate mipmap levels for
- * \param face which cube face to generate mipmaps for (0 for non-cube maps)
- * \param baseLevel the first mipmap level to use as a src
- * \param lastLevel the last mipmap level to generate
+ * \param pt the texture to generate mipmap levels for
+ * \param format format of texture
+ * \param first_layer the first layer to generate mipmap levels for
+ * (ignored for 3D textures)
+ * \param last_layer the last layer to generate mipmap levels for
+ * (ignored for 3D textures)
+ * \param base_level the first mipmap level to use as a src
+ * \param last_level the last mipmap level to generate
* \param filter the minification filter used to generate mipmap levels with
- * \param filter one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
+ * one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
*/
-void
-util_gen_mipmap(struct gen_mipmap_state *ctx,
- struct pipe_texture *pt,
- uint face, uint baseLevel, uint lastLevel, uint filter)
+boolean
+util_gen_mipmap(struct pipe_context *pipe, struct pipe_resource *pt,
+ enum pipe_format format, uint base_level, uint last_level,
+ uint first_layer, uint last_layer, uint filter)
{
- struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
- struct pipe_framebuffer_state fb;
+ struct pipe_blit_info blit;
uint dstLevel;
- uint zslice = 0;
-
- /* check if we can render in the texture's format */
- if (!screen->is_format_supported(screen, pt->format, PIPE_TEXTURE_2D,
- PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
- fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel);
- return;
- }
-
- /* save state (restored below) */
- cso_save_blend(ctx->cso);
- cso_save_depth_stencil_alpha(ctx->cso);
- cso_save_rasterizer(ctx->cso);
- cso_save_samplers(ctx->cso);
- cso_save_sampler_textures(ctx->cso);
- cso_save_framebuffer(ctx->cso);
- cso_save_fragment_shader(ctx->cso);
- cso_save_vertex_shader(ctx->cso);
- cso_save_viewport(ctx->cso);
+ boolean is_zs = util_format_is_depth_or_stencil(format);
+ boolean has_depth =
+ util_format_has_depth(util_format_description(format));
- /* bind our state */
- cso_set_blend(ctx->cso, &ctx->blend);
- cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
- cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
- cso_set_viewport(ctx->cso, &ctx->viewport);
+ /* nothing to do for stencil-only formats */
+ if (is_zs && !has_depth)
+ return TRUE;
- cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
- cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
+ /* nothing to do for integer formats */
+ if (!is_zs && util_format_is_pure_integer(format))
+ return TRUE;
- /* init framebuffer state */
- memset(&fb, 0, sizeof(fb));
- fb.num_cbufs = 1;
-
- /* set min/mag to same filter for faster sw speed */
- ctx->sampler.mag_img_filter = filter;
- ctx->sampler.min_img_filter = filter;
+ if (!screen->is_format_supported(screen, format, pt->target,
+ pt->nr_samples,
+ PIPE_BIND_SAMPLER_VIEW |
+ (is_zs ? PIPE_BIND_DEPTH_STENCIL :
+ PIPE_BIND_RENDER_TARGET))) {
+ return FALSE;
+ }
- /*
- * XXX for small mipmap levels, it may be faster to use the software
- * fallback path...
+ /* The texture object should have room for the levels which we're
+ * about to generate.
*/
- for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
- const uint srcLevel = dstLevel - 1;
+ assert(last_level <= pt->last_level);
- struct pipe_surface *surf =
- screen->get_tex_surface(screen, pt, face, dstLevel, zslice,
- PIPE_BUFFER_USAGE_GPU_WRITE);
+ /* If this fails, why are we here? */
+ assert(last_level > base_level);
+ assert(filter == PIPE_TEX_FILTER_LINEAR ||
+ filter == PIPE_TEX_FILTER_NEAREST);
- /*
- * Setup framebuffer / dest surface
- */
- fb.cbufs[0] = surf;
- fb.width = pt->width[dstLevel];
- fb.height = pt->height[dstLevel];
- cso_set_framebuffer(ctx->cso, &fb);
+ memset(&blit, 0, sizeof(blit));
+ blit.src.resource = blit.dst.resource = pt;
+ blit.src.format = blit.dst.format = format;
+ /* don't set the stencil mask, stencil shouldn't be changed */
+ blit.mask = is_zs ? PIPE_MASK_Z : PIPE_MASK_RGBA;
+ blit.filter = filter;
- /*
- * Setup sampler state
- * Note: we should only have to set the min/max LOD clamps to ensure
- * we grab texels from the right mipmap level. But some hardware
- * has trouble with min clamping so we also set the lod_bias to
- * try to work around that.
- */
- ctx->sampler.min_lod = ctx->sampler.max_lod = (float) srcLevel;
- ctx->sampler.lod_bias = (float) srcLevel;
- cso_single_sampler(ctx->cso, 0, &ctx->sampler);
- cso_single_sampler_done(ctx->cso);
+ for (dstLevel = base_level + 1; dstLevel <= last_level; dstLevel++) {
+ blit.src.level = dstLevel - 1;
+ blit.dst.level = dstLevel;
- cso_set_sampler_textures(ctx->cso, 1, &pt);
+ blit.src.box.width = u_minify(pt->width0, blit.src.level);
+ blit.src.box.height = u_minify(pt->height0, blit.src.level);
- /* quad coords in window coords (bypassing clipping, viewport mapping) */
- set_vertex_data(ctx,
- (float) pt->width[dstLevel],
- (float) pt->height[dstLevel]);
- util_draw_vertex_buffer(ctx->pipe, ctx->vbuf,
- PIPE_PRIM_TRIANGLE_FAN,
- 4, /* verts */
- 2); /* attribs/vert */
+ blit.dst.box.width = u_minify(pt->width0, blit.dst.level);
+ blit.dst.box.height = u_minify(pt->height0, blit.dst.level);
- pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+ if (pt->target == PIPE_TEXTURE_3D) {
+ /* generate all layers/slices at once */
+ blit.src.box.z = blit.dst.box.z = 0;
+ blit.src.box.depth = util_max_layer(pt, blit.src.level)+1;
+ blit.dst.box.depth = util_max_layer(pt, blit.dst.level)+1;
+ }
+ else {
+ blit.src.box.z = blit.dst.box.z = first_layer;
+ blit.src.box.depth = blit.dst.box.depth =
+ (last_layer + 1 - first_layer);
+ }
- /* need to signal that the texture has changed _after_ rendering to it */
- pipe_surface_reference( &surf, NULL );
+ pipe->blit(pipe, &blit);
}
-
- /* restore state we changed */
- cso_restore_blend(ctx->cso);
- cso_restore_depth_stencil_alpha(ctx->cso);
- cso_restore_rasterizer(ctx->cso);
- cso_restore_samplers(ctx->cso);
- cso_restore_sampler_textures(ctx->cso);
- cso_restore_framebuffer(ctx->cso);
- cso_restore_fragment_shader(ctx->cso);
- cso_restore_vertex_shader(ctx->cso);
- cso_restore_viewport(ctx->cso);
+ return TRUE;
}
projects / mesa.git / blobdiff