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* Copyright (C) 2010 Jorge Jimenez (jorge@iryoku.com)
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* Copyright (C) 2010 Belen Masia (bmasia@unizar.es)
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* Copyright (C) 2010 Jose I. Echevarria (joseignacioechevarria@gmail.com)
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* Copyright (C) 2010 Fernando Navarro (fernandn@microsoft.com)
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* Copyright (C) 2010 Diego Gutierrez (diegog@unizar.es)
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* Copyright (C) 2011 Lauri Kasanen (cand@gmx.com)
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the following statement:
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* "Uses Jimenez's MLAA. Copyright (C) 2010 by Jorge Jimenez, Belen Masia,
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* Jose I. Echevarria, Fernando Navarro and Diego Gutierrez."
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* Only for use in the Mesa project, this point 2 is filled by naming the
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* technique Jimenez's MLAA in the Mesa config options.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
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* IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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* The views and conclusions contained in the software and documentation are
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* those of the authors and should not be interpreted as representing official
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* policies, either expressed or implied, of the copyright holders.
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#include "pipe/p_compiler.h"
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#include "postprocess/postprocess.h"
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#include "postprocess/pp_mlaa.h"
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#include "postprocess/pp_filters.h"
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#include "util/u_blit.h"
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#include "util/u_box.h"
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#include "util/u_sampler.h"
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#include "util/u_inlines.h"
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#include "util/u_memory.h"
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#include "util/u_string.h"
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#include "pipe/p_screen.h"
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static float constants[] = { 1, 1, 0, 0 };
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static unsigned int dimensions[2] = { 0, 0 };
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static struct pipe_resource *constbuf, *areamaptex;
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/** Upload the constants. */
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up_consts(struct pipe_context *pipe)
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u_box_2d(0, 0, sizeof(constants), 1, &box);
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pipe->transfer_inline_write(pipe, constbuf, 0, PIPE_TRANSFER_WRITE,
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&box, constants, sizeof(constants),
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/** Run function of the MLAA filter. */
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pp_jimenezmlaa_run(struct pp_queue_t *ppq, struct pipe_resource *in,
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struct pipe_resource *out, unsigned int n, bool iscolor)
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struct program *p = ppq->p;
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struct pipe_depth_stencil_alpha_state mstencil;
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struct pipe_sampler_view v_tmp, *arr[3];
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unsigned int w = p->framebuffer.width;
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unsigned int h = p->framebuffer.height;
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const struct pipe_stencil_ref ref = { {1} };
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memset(&mstencil, 0, sizeof(mstencil));
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cso_set_stencil_ref(p->cso, &ref);
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/* Init the pixel size constant */
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if (dimensions[0] != p->framebuffer.width ||
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dimensions[1] != p->framebuffer.height) {
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constants[0] = 1.0 / p->framebuffer.width;
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constants[1] = 1.0 / p->framebuffer.height;
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dimensions[0] = p->framebuffer.width;
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dimensions[1] = p->framebuffer.height;
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p->pipe->set_constant_buffer(p->pipe, PIPE_SHADER_VERTEX, 0, constbuf);
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p->pipe->set_constant_buffer(p->pipe, PIPE_SHADER_FRAGMENT, 0, constbuf);
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mstencil.stencil[0].enabled = 1;
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mstencil.stencil[0].valuemask = mstencil.stencil[0].writemask = ~0;
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mstencil.stencil[0].func = PIPE_FUNC_ALWAYS;
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mstencil.stencil[0].fail_op = PIPE_STENCIL_OP_KEEP;
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mstencil.stencil[0].zfail_op = PIPE_STENCIL_OP_KEEP;
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mstencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
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p->framebuffer.zsbuf = ppq->stencils;
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/* First pass: depth edge detection */
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pp_filter_setup_in(p, in);
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pp_filter_setup_in(p, ppq->depth);
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pp_filter_setup_out(p, ppq->inner_tmp[0]);
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pp_filter_misc_state(p);
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cso_set_depth_stencil_alpha(p->cso, &mstencil);
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p->pipe->clear(p->pipe, PIPE_CLEAR_STENCIL | PIPE_CLEAR_COLOR,
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&p->clear_color, 0, 0);
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cso_single_sampler(p->cso, 0, &p->sampler_point);
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cso_single_sampler_done(p->cso);
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cso_set_fragment_sampler_views(p->cso, 1, &p->view);
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cso_set_vertex_shader_handle(p->cso, ppq->shaders[n][1]); /* offsetvs */
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cso_set_fragment_shader_handle(p->cso, ppq->shaders[n][2]);
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pp_filter_end_pass(p);
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/* Second pass: blend weights */
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/* Sampler order: areamap, edgesmap, edgesmapL (reversed, thx compiler) */
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mstencil.stencil[0].func = PIPE_FUNC_EQUAL;
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mstencil.stencil[0].zpass_op = PIPE_STENCIL_OP_KEEP;
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cso_set_depth_stencil_alpha(p->cso, &mstencil);
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pp_filter_setup_in(p, areamaptex);
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pp_filter_setup_out(p, ppq->inner_tmp[1]);
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u_sampler_view_default_template(&v_tmp, ppq->inner_tmp[0],
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ppq->inner_tmp[0]->format);
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arr[1] = arr[2] = p->pipe->create_sampler_view(p->pipe,
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ppq->inner_tmp[0], &v_tmp);
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pp_filter_set_clear_fb(p);
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cso_single_sampler(p->cso, 0, &p->sampler_point);
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cso_single_sampler(p->cso, 1, &p->sampler_point);
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cso_single_sampler(p->cso, 2, &p->sampler);
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cso_single_sampler_done(p->cso);
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cso_set_fragment_sampler_views(p->cso, 3, arr);
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cso_set_vertex_shader_handle(p->cso, ppq->shaders[n][0]); /* passvs */
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cso_set_fragment_shader_handle(p->cso, ppq->shaders[n][3]);
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pp_filter_end_pass(p);
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pipe_sampler_view_reference(&arr[1], NULL);
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/* Third pass: smoothed edges */
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/* Sampler order: colormap, blendmap (wtf compiler) */
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pp_filter_setup_in(p, ppq->inner_tmp[1]);
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pp_filter_setup_out(p, out);
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/* Blit the input to the output */
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util_blit_pixels(p->blitctx, in, 0, 0, 0,
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w, h, 0, p->framebuffer.cbufs[0],
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0, 0, w, h, 0, PIPE_TEX_MIPFILTER_NEAREST);
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u_sampler_view_default_template(&v_tmp, in, in->format);
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arr[0] = p->pipe->create_sampler_view(p->pipe, in, &v_tmp);
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cso_single_sampler(p->cso, 0, &p->sampler_point);
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cso_single_sampler(p->cso, 1, &p->sampler_point);
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cso_single_sampler_done(p->cso);
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cso_set_fragment_sampler_views(p->cso, 2, arr);
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cso_set_vertex_shader_handle(p->cso, ppq->shaders[n][1]); /* offsetvs */
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cso_set_fragment_shader_handle(p->cso, ppq->shaders[n][4]);
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p->blend.rt[0].blend_enable = 1;
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cso_set_blend(p->cso, &p->blend);
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pp_filter_end_pass(p);
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pipe_sampler_view_reference(&arr[0], NULL);
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p->blend.rt[0].blend_enable = 0;
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p->framebuffer.zsbuf = NULL;
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/** The init function of the MLAA filter. */
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pp_jimenezmlaa_init_run(struct pp_queue_t *ppq, unsigned int n,
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unsigned int val, bool iscolor)
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struct pipe_resource res;
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constbuf = pipe_buffer_create(ppq->p->screen, PIPE_BIND_CONSTANT_BUFFER,
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PIPE_USAGE_STATIC, sizeof(constants));
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pp_debug("Failed to allocate constant buffer\n");
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pp_debug("mlaa: using %u max search steps\n", val);
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tmp_text = CALLOC(sizeof(blend2fs_1) + sizeof(blend2fs_2) +
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IMM_SPACE, sizeof(char));
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pp_debug("Failed to allocate shader space\n");
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util_sprintf(tmp_text, "%s"
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"IMM FLT32 { %.8f, 0.0000, 0.0000, 0.0000}\n"
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"%s\n", blend2fs_1, (float) val, blend2fs_2);
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memset(&res, 0, sizeof(res));
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res.target = PIPE_TEXTURE_2D;
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res.format = PIPE_FORMAT_R8G8_UNORM;
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res.width0 = res.height0 = 165;
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res.bind = PIPE_BIND_SAMPLER_VIEW;
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res.usage = PIPE_USAGE_STATIC;
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res.depth0 = res.array_size = res.nr_samples = 1;
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if (!ppq->p->screen->is_format_supported(ppq->p->screen, res.format,
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res.target, 1, res.bind))
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pp_debug("Areamap format not supported\n");
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areamaptex = ppq->p->screen->resource_create(ppq->p->screen, &res);
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u_box_2d(0, 0, 165, 165, &box);
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ppq->p->pipe->transfer_inline_write(ppq->p->pipe, areamaptex, 0,
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PIPE_TRANSFER_WRITE, &box,
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areamap, 165 * 2, sizeof(areamap));
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ppq->shaders[n][1] = pp_tgsi_to_state(ppq->p->pipe, offsetvs, true,
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ppq->shaders[n][2] = pp_tgsi_to_state(ppq->p->pipe, color1fs,
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ppq->shaders[n][2] = pp_tgsi_to_state(ppq->p->pipe, depth1fs,
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ppq->shaders[n][3] = pp_tgsi_to_state(ppq->p->pipe, tmp_text, false,
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ppq->shaders[n][4] = pp_tgsi_to_state(ppq->p->pipe, neigh3fs, false,
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/** Short wrapper to init the depth version. */
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pp_jimenezmlaa_init(struct pp_queue_t *ppq, unsigned int n, unsigned int val)
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pp_jimenezmlaa_init_run(ppq, n, val, false);
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/** Short wrapper to init the color version. */
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pp_jimenezmlaa_init_color(struct pp_queue_t *ppq, unsigned int n,
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pp_jimenezmlaa_init_run(ppq, n, val, true);
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/** Short wrapper to run the depth version. */
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pp_jimenezmlaa(struct pp_queue_t *ppq, struct pipe_resource *in,
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struct pipe_resource *out, unsigned int n)
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pp_jimenezmlaa_run(ppq, in, out, n, false);
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/** Short wrapper to run the color version. */
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pp_jimenezmlaa_color(struct pp_queue_t *ppq, struct pipe_resource *in,
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struct pipe_resource *out, unsigned int n)
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pp_jimenezmlaa_run(ppq, in, out, n, true);