src/gallium/drivers/swr/swr_draw.cpp - platform/external/mesa3d - Gitiles

 /****************************************************************************
  * Copyright (C) 2015 Intel Corporation.   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 (including the next
  * paragraph) 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.
  ***************************************************************************/

 #include "swr_screen.h"
 #include "swr_context.h"
 #include "swr_resource.h"
 #include "swr_fence.h"
 #include "swr_query.h"
 #include "jit_api.h"

 #include "util/u_draw.h"
 #include "util/u_prim.h"

 /*
  * Draw vertex arrays, with optional indexing, optional instancing.
  */
 static void
 swr_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
 {
    struct swr_context *ctx = swr_context(pipe);

    if (!swr_check_render_cond(pipe))
       return;

    if (info->indirect) {
       util_draw_indirect(pipe, info);
       return;
    }

    /* Update derived state, pass draw info to update function */
    swr_update_derived(pipe, info);

    swr_update_draw_context(ctx);

    if (ctx->vs->pipe.stream_output.num_outputs) {
       if (!ctx->vs->soFunc[info->mode]) {
          STREAMOUT_COMPILE_STATE state = {0};
          struct pipe_stream_output_info *so = &ctx->vs->pipe.stream_output;

          state.numVertsPerPrim = u_vertices_per_prim(info->mode);

          uint32_t offsets[MAX_SO_STREAMS] = {0};
          uint32_t num = 0;

          for (uint32_t i = 0; i < so->num_outputs; i++) {
             assert(so->output[i].stream == 0); // @todo
             uint32_t output_buffer = so->output[i].output_buffer;
             if (so->output[i].dst_offset != offsets[output_buffer]) {
                // hole - need to fill
                state.stream.decl[num].bufferIndex = output_buffer;
                state.stream.decl[num].hole = true;
                state.stream.decl[num].componentMask =
                   (1 << (so->output[i].dst_offset - offsets[output_buffer]))
                   - 1;
                num++;
                offsets[output_buffer] = so->output[i].dst_offset;
             }

             state.stream.decl[num].bufferIndex = output_buffer;
             state.stream.decl[num].attribSlot = so->output[i].register_index - 1;
             state.stream.decl[num].componentMask =
                ((1 << so->output[i].num_components) - 1)
                << so->output[i].start_component;
             state.stream.decl[num].hole = false;
             num++;

             offsets[output_buffer] += so->output[i].num_components;
          }

          state.stream.numDecls = num;

          HANDLE hJitMgr = swr_screen(pipe->screen)->hJitMgr;
          ctx->vs->soFunc[info->mode] = JitCompileStreamout(hJitMgr, state);
          debug_printf("so shader    %p\n", ctx->vs->soFunc[info->mode]);
          assert(ctx->vs->soFunc[info->mode] && "Error: SoShader = NULL");
       }

       SwrSetSoFunc(ctx->swrContext, ctx->vs->soFunc[info->mode], 0);
    }

    struct swr_vertex_element_state *velems = ctx->velems;
    velems->fsState.cutIndex = info->restart_index;
    velems->fsState.bEnableCutIndex = info->primitive_restart;
    velems->fsState.bPartialVertexBuffer = (info->min_index > 0);

    swr_jit_fetch_key key;
    swr_generate_fetch_key(key, velems);
    auto search = velems->map.find(key);
    if (search != velems->map.end()) {
       velems->fsFunc = search->second;
    } else {
       HANDLE hJitMgr = swr_screen(ctx->pipe.screen)->hJitMgr;
       velems->fsFunc = JitCompileFetch(hJitMgr, velems->fsState);

       debug_printf("fetch shader %p\n", velems->fsFunc);
       assert(velems->fsFunc && "Error: FetchShader = NULL");

       velems->map.insert(std::make_pair(key, velems->fsFunc));
    }

    SwrSetFetchFunc(ctx->swrContext, velems->fsFunc);

    /* Set up frontend state
     * XXX setup provokingVertex & topologyProvokingVertex */
    SWR_FRONTEND_STATE feState = {0};
    if (ctx->rasterizer->flatshade_first) {
       feState.provokingVertex = {1, 0, 0};
    } else {
       feState.provokingVertex = {2, 1, 2};
    }

    enum pipe_prim_type topology;
    if (ctx->gs)
       topology = (pipe_prim_type)ctx->gs->info.base.properties[TGSI_PROPERTY_GS_OUTPUT_PRIM];
    else
       topology = info->mode;

    switch (topology) {
    case PIPE_PRIM_TRIANGLE_FAN:
       feState.topologyProvokingVertex = feState.provokingVertex.triFan;
       break;
    case PIPE_PRIM_TRIANGLE_STRIP:
    case PIPE_PRIM_TRIANGLES:
       feState.topologyProvokingVertex = feState.provokingVertex.triStripList;
       break;
    case PIPE_PRIM_QUAD_STRIP:
    case PIPE_PRIM_QUADS:
       if (ctx->rasterizer->flatshade_first)
          feState.topologyProvokingVertex = 0;
       else
          feState.topologyProvokingVertex = 3;
       break;
    case PIPE_PRIM_LINES:
    case PIPE_PRIM_LINE_LOOP:
    case PIPE_PRIM_LINE_STRIP:
       feState.topologyProvokingVertex = feState.provokingVertex.lineStripList;
       break;
    default:
       feState.topologyProvokingVertex = 0;
    }

    feState.bEnableCutIndex = info->primitive_restart;
    SwrSetFrontendState(ctx->swrContext, &feState);

    if (info->indexed)
       SwrDrawIndexedInstanced(ctx->swrContext,
                               swr_convert_prim_topology(info->mode),
                               info->count,
                               info->instance_count,
                               info->start,
                               info->index_bias,
                               info->start_instance);
    else
       SwrDrawInstanced(ctx->swrContext,
                        swr_convert_prim_topology(info->mode),
                        info->count,
                        info->instance_count,
                        info->start,
                        info->start_instance);
 }


 static void
 swr_flush(struct pipe_context *pipe,
           struct pipe_fence_handle **fence,
           unsigned flags)
 {
    struct swr_context *ctx = swr_context(pipe);
    struct swr_screen *screen = swr_screen(pipe->screen);
    struct pipe_surface *cb = ctx->framebuffer.cbufs[0];

    /* If the current renderTarget is the display surface, store tiles back to
     * the surface, in preparation for present (swr_flush_frontbuffer).
     * Other renderTargets get stored back when attachment changes or
     * swr_surface_destroy */
    if (cb && swr_resource(cb->texture)->display_target)
       swr_store_dirty_resource(pipe, cb->texture, SWR_TILE_RESOLVED);

    if (fence)
       swr_fence_reference(pipe->screen, fence, screen->flush_fence);
 }

 void
 swr_finish(struct pipe_context *pipe)
 {
    struct pipe_fence_handle *fence = nullptr;

    swr_flush(pipe, &fence, 0);
    swr_fence_finish(pipe->screen, NULL, fence, 0);
    swr_fence_reference(pipe->screen, &fence, NULL);
 }


 /*
  * Store SWR HotTiles back to renderTarget surface.
  */
 void
 swr_store_render_target(struct pipe_context *pipe,
                         uint32_t attachment,
                         enum SWR_TILE_STATE post_tile_state)
 {
    struct swr_context *ctx = swr_context(pipe);
    struct swr_draw_context *pDC = &ctx->swrDC;
    struct SWR_SURFACE_STATE *renderTarget = &pDC->renderTargets[attachment];

    /* Only proceed if there's a valid surface to store to */
    if (renderTarget->pBaseAddress) {
       swr_update_draw_context(ctx);
       SWR_RECT full_rect =
          {0, 0,
           (int32_t)u_minify(renderTarget->width, renderTarget->lod),
           (int32_t)u_minify(renderTarget->height, renderTarget->lod)};
       SwrStoreTiles(ctx->swrContext,
                     1 << attachment,
                     post_tile_state,
                     full_rect);
    }
 }

 void
 swr_store_dirty_resource(struct pipe_context *pipe,
                          struct pipe_resource *resource,
                          enum SWR_TILE_STATE post_tile_state)
 {
    /* Only store resource if it has been written to */
    if (swr_resource(resource)->status & SWR_RESOURCE_WRITE) {
       struct swr_context *ctx = swr_context(pipe);
       struct swr_screen *screen = swr_screen(pipe->screen);
       struct swr_resource *spr = swr_resource(resource);

       swr_draw_context *pDC = &ctx->swrDC;
       SWR_SURFACE_STATE *renderTargets = pDC->renderTargets;
       for (uint32_t i = 0; i < SWR_NUM_ATTACHMENTS; i++)
          if (renderTargets[i].pBaseAddress == spr->swr.pBaseAddress ||
              (spr->secondary.pBaseAddress &&
               renderTargets[i].pBaseAddress == spr->secondary.pBaseAddress)) {
             swr_store_render_target(pipe, i, post_tile_state);

             /* Mesa thinks depth/stencil are fused, so we'll never get an
              * explicit resource for stencil.  So, if checking depth, then
              * also check for stencil. */
             if (spr->has_stencil && (i == SWR_ATTACHMENT_DEPTH)) {
                swr_store_render_target(
                   pipe, SWR_ATTACHMENT_STENCIL, post_tile_state);
             }

             /* This fence signals StoreTiles completion */
             swr_fence_submit(ctx, screen->flush_fence);

             break;
          }
    }
 }

 void
 swr_draw_init(struct pipe_context *pipe)
 {
    pipe->draw_vbo = swr_draw_vbo;
    pipe->flush = swr_flush;
 }
	/****************************************************************************
	* Copyright (C) 2015 Intel Corporation. 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 (including the next
	* paragraph) 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.
	***************************************************************************/

	#include "swr_screen.h"
	#include "swr_context.h"
	#include "swr_resource.h"
	#include "swr_fence.h"
	#include "swr_query.h"
	#include "jit_api.h"

	#include "util/u_draw.h"
	#include "util/u_prim.h"

	/*
	* Draw vertex arrays, with optional indexing, optional instancing.
	*/
	static void
	swr_draw_vbo(struct pipe_context pipe, const struct pipe_draw_info info)
	{
	struct swr_context *ctx = swr_context(pipe);

	if (!swr_check_render_cond(pipe))
	return;

	if (info->indirect) {
	util_draw_indirect(pipe, info);
	return;
	}

	/* Update derived state, pass draw info to update function */
	swr_update_derived(pipe, info);

	swr_update_draw_context(ctx);

	if (ctx->vs->pipe.stream_output.num_outputs) {
	if (!ctx->vs->soFunc[info->mode]) {
	STREAMOUT_COMPILE_STATE state = {0};
	struct pipe_stream_output_info *so = &ctx->vs->pipe.stream_output;

	state.numVertsPerPrim = u_vertices_per_prim(info->mode);

	uint32_t offsets[MAX_SO_STREAMS] = {0};
	uint32_t num = 0;

	for (uint32_t i = 0; i < so->num_outputs; i++) {
	assert(so->output[i].stream == 0); // @todo
	uint32_t output_buffer = so->output[i].output_buffer;
	if (so->output[i].dst_offset != offsets[output_buffer]) {
	// hole - need to fill
	state.stream.decl[num].bufferIndex = output_buffer;
	state.stream.decl[num].hole = true;
	state.stream.decl[num].componentMask =
	(1 << (so->output[i].dst_offset - offsets[output_buffer]))
	- 1;
	num++;
	offsets[output_buffer] = so->output[i].dst_offset;
	}

	state.stream.decl[num].bufferIndex = output_buffer;
	state.stream.decl[num].attribSlot = so->output[i].register_index - 1;
	state.stream.decl[num].componentMask =
	((1 << so->output[i].num_components) - 1)
	<< so->output[i].start_component;
	state.stream.decl[num].hole = false;
	num++;

	offsets[output_buffer] += so->output[i].num_components;
	}

	state.stream.numDecls = num;

	HANDLE hJitMgr = swr_screen(pipe->screen)->hJitMgr;
	ctx->vs->soFunc[info->mode] = JitCompileStreamout(hJitMgr, state);
	debug_printf("so shader %p\n", ctx->vs->soFunc[info->mode]);
	assert(ctx->vs->soFunc[info->mode] && "Error: SoShader = NULL");
	}

	SwrSetSoFunc(ctx->swrContext, ctx->vs->soFunc[info->mode], 0);
	}

	struct swr_vertex_element_state *velems = ctx->velems;
	velems->fsState.cutIndex = info->restart_index;
	velems->fsState.bEnableCutIndex = info->primitive_restart;
	velems->fsState.bPartialVertexBuffer = (info->min_index > 0);

	swr_jit_fetch_key key;
	swr_generate_fetch_key(key, velems);
	auto search = velems->map.find(key);
	if (search != velems->map.end()) {
	velems->fsFunc = search->second;
	} else {
	HANDLE hJitMgr = swr_screen(ctx->pipe.screen)->hJitMgr;
	velems->fsFunc = JitCompileFetch(hJitMgr, velems->fsState);

	debug_printf("fetch shader %p\n", velems->fsFunc);
	assert(velems->fsFunc && "Error: FetchShader = NULL");

	velems->map.insert(std::make_pair(key, velems->fsFunc));
	}

	SwrSetFetchFunc(ctx->swrContext, velems->fsFunc);

	/* Set up frontend state
	* XXX setup provokingVertex & topologyProvokingVertex */
	SWR_FRONTEND_STATE feState = {0};
	if (ctx->rasterizer->flatshade_first) {
	feState.provokingVertex = {1, 0, 0};
	} else {
	feState.provokingVertex = {2, 1, 2};
	}

	enum pipe_prim_type topology;
	if (ctx->gs)
	topology = (pipe_prim_type)ctx->gs->info.base.properties[TGSI_PROPERTY_GS_OUTPUT_PRIM];
	else
	topology = info->mode;

	switch (topology) {
	case PIPE_PRIM_TRIANGLE_FAN:
	feState.topologyProvokingVertex = feState.provokingVertex.triFan;
	break;
	case PIPE_PRIM_TRIANGLE_STRIP:
	case PIPE_PRIM_TRIANGLES:
	feState.topologyProvokingVertex = feState.provokingVertex.triStripList;
	break;
	case PIPE_PRIM_QUAD_STRIP:
	case PIPE_PRIM_QUADS:
	if (ctx->rasterizer->flatshade_first)
	feState.topologyProvokingVertex = 0;
	else
	feState.topologyProvokingVertex = 3;
	break;
	case PIPE_PRIM_LINES:
	case PIPE_PRIM_LINE_LOOP:
	case PIPE_PRIM_LINE_STRIP:
	feState.topologyProvokingVertex = feState.provokingVertex.lineStripList;
	break;
	default:
	feState.topologyProvokingVertex = 0;
	}

	feState.bEnableCutIndex = info->primitive_restart;
	SwrSetFrontendState(ctx->swrContext, &feState);

	if (info->indexed)
	SwrDrawIndexedInstanced(ctx->swrContext,
	swr_convert_prim_topology(info->mode),
	info->count,
	info->instance_count,
	info->start,
	info->index_bias,
	info->start_instance);
	else
	SwrDrawInstanced(ctx->swrContext,
	swr_convert_prim_topology(info->mode),
	info->count,
	info->instance_count,
	info->start,
	info->start_instance);
	}


	static void
	swr_flush(struct pipe_context *pipe,
	struct pipe_fence_handle **fence,
	unsigned flags)
	{
	struct swr_context *ctx = swr_context(pipe);
	struct swr_screen *screen = swr_screen(pipe->screen);
	struct pipe_surface *cb = ctx->framebuffer.cbufs[0];

	/* If the current renderTarget is the display surface, store tiles back to
	* the surface, in preparation for present (swr_flush_frontbuffer).
	* Other renderTargets get stored back when attachment changes or
	* swr_surface_destroy */
	if (cb && swr_resource(cb->texture)->display_target)
	swr_store_dirty_resource(pipe, cb->texture, SWR_TILE_RESOLVED);

	if (fence)
	swr_fence_reference(pipe->screen, fence, screen->flush_fence);
	}

	void
	swr_finish(struct pipe_context *pipe)
	{
	struct pipe_fence_handle *fence = nullptr;

	swr_flush(pipe, &fence, 0);
	swr_fence_finish(pipe->screen, NULL, fence, 0);
	swr_fence_reference(pipe->screen, &fence, NULL);
	}


	/*
	* Store SWR HotTiles back to renderTarget surface.
	*/
	void
	swr_store_render_target(struct pipe_context *pipe,
	uint32_t attachment,
	enum SWR_TILE_STATE post_tile_state)
	{
	struct swr_context *ctx = swr_context(pipe);
	struct swr_draw_context *pDC = &ctx->swrDC;
	struct SWR_SURFACE_STATE *renderTarget = &pDC->renderTargets[attachment];

	/* Only proceed if there's a valid surface to store to */
	if (renderTarget->pBaseAddress) {
	swr_update_draw_context(ctx);
	SWR_RECT full_rect =
	{0, 0,
	(int32_t)u_minify(renderTarget->width, renderTarget->lod),
	(int32_t)u_minify(renderTarget->height, renderTarget->lod)};
	SwrStoreTiles(ctx->swrContext,
	1 << attachment,
	post_tile_state,
	full_rect);
	}
	}

	void
	swr_store_dirty_resource(struct pipe_context *pipe,
	struct pipe_resource *resource,
	enum SWR_TILE_STATE post_tile_state)
	{
	/* Only store resource if it has been written to */
	if (swr_resource(resource)->status & SWR_RESOURCE_WRITE) {
	struct swr_context *ctx = swr_context(pipe);
	struct swr_screen *screen = swr_screen(pipe->screen);
	struct swr_resource *spr = swr_resource(resource);

	swr_draw_context *pDC = &ctx->swrDC;
	SWR_SURFACE_STATE *renderTargets = pDC->renderTargets;
	for (uint32_t i = 0; i < SWR_NUM_ATTACHMENTS; i++)
	if (renderTargets[i].pBaseAddress == spr->swr.pBaseAddress \|\|
	(spr->secondary.pBaseAddress &&
	renderTargets[i].pBaseAddress == spr->secondary.pBaseAddress)) {
	swr_store_render_target(pipe, i, post_tile_state);

	/* Mesa thinks depth/stencil are fused, so we'll never get an
	* explicit resource for stencil. So, if checking depth, then
	* also check for stencil. */
	if (spr->has_stencil && (i == SWR_ATTACHMENT_DEPTH)) {
	swr_store_render_target(
	pipe, SWR_ATTACHMENT_STENCIL, post_tile_state);
	}

	/* This fence signals StoreTiles completion */
	swr_fence_submit(ctx, screen->flush_fence);

	break;
	}
	}
	}

	void
	swr_draw_init(struct pipe_context *pipe)
	{
	pipe->draw_vbo = swr_draw_vbo;
	pipe->flush = swr_flush;
	}