/************************************************************************** * * Copyright 2009 Marek Olšák * * 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, sub license, 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 NON-INFRINGEMENT. * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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 * Blitter utility to facilitate acceleration of the clear, clear_render_target, * clear_depth_stencil, and resource_copy_region functions. * * @author Marek Olšák */ #include "pipe/p_context.h" #include "pipe/p_defines.h" #include "util/u_inlines.h" #include "pipe/p_shader_tokens.h" #include "pipe/p_state.h" #include "util/u_format.h" #include "util/u_memory.h" #include "util/u_math.h" #include "util/u_blitter.h" #include "util/u_draw_quad.h" #include "util/u_sampler.h" #include "util/u_simple_shaders.h" #include "util/u_surface.h" #include "util/u_texture.h" #include "util/u_upload_mgr.h" #define INVALID_PTR ((void*)~0) struct blitter_context_priv { struct blitter_context base; struct u_upload_mgr *upload; float vertices[4][2][4]; /**< {pos, color} or {pos, texcoord} */ /* Templates for various state objects. */ /* Constant state objects. */ /* Vertex shaders. */ void *vs; /**< Vertex shader which passes {pos, generic} to the output.*/ void *vs_pos_only; /**< Vertex shader which passes pos to the output.*/ /* Fragment shaders. */ /* The shader at index i outputs color to color buffers 0,1,...,i-1. */ void *fs_col[PIPE_MAX_COLOR_BUFS+1]; void *fs_col_int[PIPE_MAX_COLOR_BUFS+1]; /* FS which outputs a color from a texture, where the index is PIPE_TEXTURE_* to be sampled. */ void *fs_texfetch_col[PIPE_MAX_TEXTURE_TYPES]; /* FS which outputs a depth from a texture, where the index is PIPE_TEXTURE_* to be sampled. */ void *fs_texfetch_depth[PIPE_MAX_TEXTURE_TYPES]; void *fs_texfetch_depthstencil[PIPE_MAX_TEXTURE_TYPES]; void *fs_texfetch_stencil[PIPE_MAX_TEXTURE_TYPES]; /* Blend state. */ void *blend_write_color; /**< blend state with writemask of RGBA */ void *blend_keep_color; /**< blend state with writemask of 0 */ /* Depth stencil alpha state. */ void *dsa_write_depth_stencil; void *dsa_write_depth_keep_stencil; void *dsa_keep_depth_stencil; void *dsa_keep_depth_write_stencil; /* Vertex elements states. */ void *velem_state; void *velem_uint_state; void *velem_sint_state; void *velem_state_readbuf; /* Sampler state. */ void *sampler_state; /* Rasterizer state. */ void *rs_state; void *rs_discard_state; /* Viewport state. */ struct pipe_viewport_state viewport; /* Destination surface dimensions. */ unsigned dst_width; unsigned dst_height; boolean has_geometry_shader; boolean vertex_has_integers; boolean has_stream_out; boolean has_stencil_export; }; static void blitter_draw_rectangle(struct blitter_context *blitter, unsigned x, unsigned y, unsigned width, unsigned height, float depth, enum blitter_attrib_type type, const union pipe_color_union *attrib); struct blitter_context *util_blitter_create(struct pipe_context *pipe) { struct blitter_context_priv *ctx; struct pipe_blend_state blend; struct pipe_depth_stencil_alpha_state dsa; struct pipe_rasterizer_state rs_state; struct pipe_sampler_state sampler_state; struct pipe_vertex_element velem[2]; unsigned i; ctx = CALLOC_STRUCT(blitter_context_priv); if (!ctx) return NULL; ctx->base.pipe = pipe; ctx->base.draw_rectangle = blitter_draw_rectangle; /* init state objects for them to be considered invalid */ ctx->base.saved_blend_state = INVALID_PTR; ctx->base.saved_dsa_state = INVALID_PTR; ctx->base.saved_rs_state = INVALID_PTR; ctx->base.saved_fs = INVALID_PTR; ctx->base.saved_vs = INVALID_PTR; ctx->base.saved_gs = INVALID_PTR; ctx->base.saved_velem_state = INVALID_PTR; ctx->base.saved_fb_state.nr_cbufs = ~0; ctx->base.saved_num_sampler_views = ~0; ctx->base.saved_num_sampler_states = ~0; ctx->base.saved_num_vertex_buffers = ~0; ctx->base.saved_num_so_targets = ~0; ctx->has_geometry_shader = pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_GEOMETRY, PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0; ctx->vertex_has_integers = pipe->screen->get_shader_param(pipe->screen, PIPE_SHADER_VERTEX, PIPE_SHADER_CAP_INTEGERS); ctx->has_stream_out = pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS) != 0; ctx->has_stencil_export = pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT); /* blend state objects */ memset(&blend, 0, sizeof(blend)); ctx->blend_keep_color = pipe->create_blend_state(pipe, &blend); blend.rt[0].colormask = PIPE_MASK_RGBA; ctx->blend_write_color = pipe->create_blend_state(pipe, &blend); /* depth stencil alpha state objects */ memset(&dsa, 0, sizeof(dsa)); ctx->dsa_keep_depth_stencil = pipe->create_depth_stencil_alpha_state(pipe, &dsa); dsa.depth.enabled = 1; dsa.depth.writemask = 1; dsa.depth.func = PIPE_FUNC_ALWAYS; ctx->dsa_write_depth_keep_stencil = pipe->create_depth_stencil_alpha_state(pipe, &dsa); dsa.stencil[0].enabled = 1; dsa.stencil[0].func = PIPE_FUNC_ALWAYS; dsa.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE; dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; dsa.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE; dsa.stencil[0].valuemask = 0xff; dsa.stencil[0].writemask = 0xff; ctx->dsa_write_depth_stencil = pipe->create_depth_stencil_alpha_state(pipe, &dsa); dsa.depth.enabled = 0; dsa.depth.writemask = 0; ctx->dsa_keep_depth_write_stencil = pipe->create_depth_stencil_alpha_state(pipe, &dsa); /* sampler state */ memset(&sampler_state, 0, sizeof(sampler_state)); sampler_state.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; sampler_state.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; sampler_state.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; sampler_state.normalized_coords = 1; ctx->sampler_state = pipe->create_sampler_state(pipe, &sampler_state); /* rasterizer state */ memset(&rs_state, 0, sizeof(rs_state)); rs_state.cull_face = PIPE_FACE_NONE; rs_state.gl_rasterization_rules = 1; rs_state.flatshade = 1; rs_state.depth_clip = 1; ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state); if (ctx->has_stream_out) { rs_state.rasterizer_discard = 1; ctx->rs_discard_state = pipe->create_rasterizer_state(pipe, &rs_state); } /* vertex elements states */ memset(&velem[0], 0, sizeof(velem[0]) * 2); for (i = 0; i < 2; i++) { velem[i].src_offset = i * 4 * sizeof(float); velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; } ctx->velem_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]); if (ctx->vertex_has_integers) { memset(&velem[0], 0, sizeof(velem[0]) * 2); velem[0].src_offset = 0; velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; velem[1].src_offset = 4 * sizeof(float); velem[1].src_format = PIPE_FORMAT_R32G32B32A32_SINT; ctx->velem_sint_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]); memset(&velem[0], 0, sizeof(velem[0]) * 2); velem[0].src_offset = 0; velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; velem[1].src_offset = 4 * sizeof(float); velem[1].src_format = PIPE_FORMAT_R32G32B32A32_UINT; ctx->velem_uint_state = pipe->create_vertex_elements_state(pipe, 2, &velem[0]); } if (ctx->has_stream_out) { velem[0].src_format = PIPE_FORMAT_R32_UINT; ctx->velem_state_readbuf = pipe->create_vertex_elements_state(pipe, 1, &velem[0]); } /* fragment shaders are created on-demand */ /* vertex shaders */ { const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, TGSI_SEMANTIC_GENERIC }; const uint semantic_indices[] = { 0, 0 }; ctx->vs = util_make_vertex_passthrough_shader(pipe, 2, semantic_names, semantic_indices); } if (ctx->has_stream_out) { struct pipe_stream_output_info so; const uint semantic_names[] = { TGSI_SEMANTIC_POSITION }; const uint semantic_indices[] = { 0 }; memset(&so, 0, sizeof(so)); so.num_outputs = 1; so.output[0].num_components = 1; so.stride[0] = 1; ctx->vs_pos_only = util_make_vertex_passthrough_shader_with_so(pipe, 1, semantic_names, semantic_indices, &so); } /* set invariant vertex coordinates */ for (i = 0; i < 4; i++) ctx->vertices[i][0][3] = 1; /*v.w*/ ctx->upload = u_upload_create(pipe, 65536, 4, PIPE_BIND_VERTEX_BUFFER); return &ctx->base; } void util_blitter_destroy(struct blitter_context *blitter) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = blitter->pipe; int i; pipe->delete_blend_state(pipe, ctx->blend_write_color); pipe->delete_blend_state(pipe, ctx->blend_keep_color); pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil); pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); pipe->delete_rasterizer_state(pipe, ctx->rs_state); if (ctx->rs_discard_state) pipe->delete_rasterizer_state(pipe, ctx->rs_discard_state); pipe->delete_vs_state(pipe, ctx->vs); if (ctx->vs_pos_only) pipe->delete_vs_state(pipe, ctx->vs_pos_only); pipe->delete_vertex_elements_state(pipe, ctx->velem_state); if (ctx->vertex_has_integers) { pipe->delete_vertex_elements_state(pipe, ctx->velem_sint_state); pipe->delete_vertex_elements_state(pipe, ctx->velem_uint_state); } if (ctx->velem_state_readbuf) pipe->delete_vertex_elements_state(pipe, ctx->velem_state_readbuf); for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) { if (ctx->fs_texfetch_col[i]) pipe->delete_fs_state(pipe, ctx->fs_texfetch_col[i]); if (ctx->fs_texfetch_depth[i]) pipe->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]); if (ctx->fs_texfetch_depthstencil[i]) pipe->delete_fs_state(pipe, ctx->fs_texfetch_depthstencil[i]); if (ctx->fs_texfetch_stencil[i]) pipe->delete_fs_state(pipe, ctx->fs_texfetch_stencil[i]); } for (i = 0; i <= PIPE_MAX_COLOR_BUFS; i++) { if (ctx->fs_col[i]) pipe->delete_fs_state(pipe, ctx->fs_col[i]); if (ctx->fs_col_int[i]) pipe->delete_fs_state(pipe, ctx->fs_col_int[i]); } pipe->delete_sampler_state(pipe, ctx->sampler_state); u_upload_destroy(ctx->upload); FREE(ctx); } static void blitter_set_running_flag(struct blitter_context_priv *ctx) { if (ctx->base.running) { _debug_printf("u_blitter:%i: Caught recursion. This is a driver bug.\n", __LINE__); } ctx->base.running = TRUE; } static void blitter_unset_running_flag(struct blitter_context_priv *ctx) { if (!ctx->base.running) { _debug_printf("u_blitter:%i: Caught recursion. This is a driver bug.\n", __LINE__); } ctx->base.running = FALSE; } static void blitter_check_saved_vertex_states(struct blitter_context_priv *ctx) { assert(ctx->base.saved_num_vertex_buffers != ~0); assert(ctx->base.saved_velem_state != INVALID_PTR); assert(ctx->base.saved_vs != INVALID_PTR); assert(!ctx->has_geometry_shader || ctx->base.saved_gs != INVALID_PTR); assert(!ctx->has_stream_out || ctx->base.saved_num_so_targets != ~0); assert(ctx->base.saved_rs_state != INVALID_PTR); } static void blitter_restore_vertex_states(struct blitter_context_priv *ctx) { struct pipe_context *pipe = ctx->base.pipe; unsigned i; /* Vertex buffers. */ pipe->set_vertex_buffers(pipe, ctx->base.saved_num_vertex_buffers, ctx->base.saved_vertex_buffers); for (i = 0; i < ctx->base.saved_num_vertex_buffers; i++) { if (ctx->base.saved_vertex_buffers[i].buffer) { pipe_resource_reference(&ctx->base.saved_vertex_buffers[i].buffer, NULL); } } ctx->base.saved_num_vertex_buffers = ~0; /* Vertex elements. */ pipe->bind_vertex_elements_state(pipe, ctx->base.saved_velem_state); ctx->base.saved_velem_state = INVALID_PTR; /* Vertex shader. */ pipe->bind_vs_state(pipe, ctx->base.saved_vs); ctx->base.saved_vs = INVALID_PTR; /* Geometry shader. */ if (ctx->has_geometry_shader) { pipe->bind_gs_state(pipe, ctx->base.saved_gs); ctx->base.saved_gs = INVALID_PTR; } /* Stream outputs. */ if (ctx->has_stream_out) { pipe->set_stream_output_targets(pipe, ctx->base.saved_num_so_targets, ctx->base.saved_so_targets, ~0); for (i = 0; i < ctx->base.saved_num_so_targets; i++) pipe_so_target_reference(&ctx->base.saved_so_targets[i], NULL); ctx->base.saved_num_so_targets = ~0; } /* Rasterizer. */ pipe->bind_rasterizer_state(pipe, ctx->base.saved_rs_state); ctx->base.saved_rs_state = INVALID_PTR; } static void blitter_check_saved_fragment_states(struct blitter_context_priv *ctx) { assert(ctx->base.saved_fs != INVALID_PTR); assert(ctx->base.saved_dsa_state != INVALID_PTR); assert(ctx->base.saved_blend_state != INVALID_PTR); } static void blitter_restore_fragment_states(struct blitter_context_priv *ctx) { struct pipe_context *pipe = ctx->base.pipe; /* Fragment shader. */ pipe->bind_fs_state(pipe, ctx->base.saved_fs); ctx->base.saved_fs = INVALID_PTR; /* Depth, stencil, alpha. */ pipe->bind_depth_stencil_alpha_state(pipe, ctx->base.saved_dsa_state); ctx->base.saved_dsa_state = INVALID_PTR; /* Blend state. */ pipe->bind_blend_state(pipe, ctx->base.saved_blend_state); ctx->base.saved_blend_state = INVALID_PTR; /* Sample mask. */ if (ctx->base.is_sample_mask_saved) { pipe->set_sample_mask(pipe, ctx->base.saved_sample_mask); ctx->base.is_sample_mask_saved = FALSE; } /* Miscellaneous states. */ /* XXX check whether these are saved and whether they need to be restored * (depending on the operation) */ pipe->set_stencil_ref(pipe, &ctx->base.saved_stencil_ref); pipe->set_viewport_state(pipe, &ctx->base.saved_viewport); } static void blitter_check_saved_fb_state(struct blitter_context_priv *ctx) { assert(ctx->base.saved_fb_state.nr_cbufs != ~0); } static void blitter_restore_fb_state(struct blitter_context_priv *ctx) { struct pipe_context *pipe = ctx->base.pipe; pipe->set_framebuffer_state(pipe, &ctx->base.saved_fb_state); util_unreference_framebuffer_state(&ctx->base.saved_fb_state); } static void blitter_check_saved_textures(struct blitter_context_priv *ctx) { assert(ctx->base.saved_num_sampler_states != ~0); assert(ctx->base.saved_num_sampler_views != ~0); } static void blitter_restore_textures(struct blitter_context_priv *ctx) { struct pipe_context *pipe = ctx->base.pipe; unsigned i; /* Fragment sampler states. */ pipe->bind_fragment_sampler_states(pipe, ctx->base.saved_num_sampler_states, ctx->base.saved_sampler_states); ctx->base.saved_num_sampler_states = ~0; /* Fragment sampler views. */ pipe->set_fragment_sampler_views(pipe, ctx->base.saved_num_sampler_views, ctx->base.saved_sampler_views); for (i = 0; i < ctx->base.saved_num_sampler_views; i++) pipe_sampler_view_reference(&ctx->base.saved_sampler_views[i], NULL); ctx->base.saved_num_sampler_views = ~0; } static void blitter_set_rectangle(struct blitter_context_priv *ctx, unsigned x1, unsigned y1, unsigned x2, unsigned y2, float depth) { int i; /* set vertex positions */ ctx->vertices[0][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v0.x*/ ctx->vertices[0][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v0.y*/ ctx->vertices[1][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v1.x*/ ctx->vertices[1][0][1] = (float)y1 / ctx->dst_height * 2.0f - 1.0f; /*v1.y*/ ctx->vertices[2][0][0] = (float)x2 / ctx->dst_width * 2.0f - 1.0f; /*v2.x*/ ctx->vertices[2][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v2.y*/ ctx->vertices[3][0][0] = (float)x1 / ctx->dst_width * 2.0f - 1.0f; /*v3.x*/ ctx->vertices[3][0][1] = (float)y2 / ctx->dst_height * 2.0f - 1.0f; /*v3.y*/ for (i = 0; i < 4; i++) ctx->vertices[i][0][2] = depth; /*z*/ /* viewport */ ctx->viewport.scale[0] = 0.5f * ctx->dst_width; ctx->viewport.scale[1] = 0.5f * ctx->dst_height; ctx->viewport.scale[2] = 1.0f; ctx->viewport.scale[3] = 1.0f; ctx->viewport.translate[0] = 0.5f * ctx->dst_width; ctx->viewport.translate[1] = 0.5f * ctx->dst_height; ctx->viewport.translate[2] = 0.0f; ctx->viewport.translate[3] = 0.0f; ctx->base.pipe->set_viewport_state(ctx->base.pipe, &ctx->viewport); } static void blitter_set_clear_color(struct blitter_context_priv *ctx, const union pipe_color_union *color) { int i; if (color) { for (i = 0; i < 4; i++) { uint32_t *uiverts = (uint32_t *)ctx->vertices[i][1]; uiverts[0] = color->ui[0]; uiverts[1] = color->ui[1]; uiverts[2] = color->ui[2]; uiverts[3] = color->ui[3]; } } else { for (i = 0; i < 4; i++) { ctx->vertices[i][1][0] = 0; ctx->vertices[i][1][1] = 0; ctx->vertices[i][1][2] = 0; ctx->vertices[i][1][3] = 0; } } } static void get_texcoords(struct pipe_sampler_view *src, unsigned src_width0, unsigned src_height0, unsigned x1, unsigned y1, unsigned x2, unsigned y2, float out[4]) { struct pipe_resource *tex = src->texture; unsigned level = src->u.tex.first_level; boolean normalized = tex->target != PIPE_TEXTURE_RECT; if (normalized) { out[0] = x1 / (float)u_minify(src_width0, level); out[1] = y1 / (float)u_minify(src_height0, level); out[2] = x2 / (float)u_minify(src_width0, level); out[3] = y2 / (float)u_minify(src_height0, level); } else { out[0] = x1; out[1] = y1; out[2] = x2; out[3] = y2; } } static void set_texcoords_in_vertices(const float coord[4], float *out, unsigned stride) { out[0] = coord[0]; /*t0.s*/ out[1] = coord[1]; /*t0.t*/ out += stride; out[0] = coord[2]; /*t1.s*/ out[1] = coord[1]; /*t1.t*/ out += stride; out[0] = coord[2]; /*t2.s*/ out[1] = coord[3]; /*t2.t*/ out += stride; out[0] = coord[0]; /*t3.s*/ out[1] = coord[3]; /*t3.t*/ } static void blitter_set_texcoords(struct blitter_context_priv *ctx, struct pipe_sampler_view *src, unsigned src_width0, unsigned src_height0, unsigned layer, unsigned x1, unsigned y1, unsigned x2, unsigned y2) { unsigned i; float coord[4]; float face_coord[4][2]; get_texcoords(src, src_width0, src_height0, x1, y1, x2, y2, coord); if (src->texture->target == PIPE_TEXTURE_CUBE) { set_texcoords_in_vertices(coord, &face_coord[0][0], 2); util_map_texcoords2d_onto_cubemap(layer, /* pointer, stride in floats */ &face_coord[0][0], 2, &ctx->vertices[0][1][0], 8); } else { set_texcoords_in_vertices(coord, &ctx->vertices[0][1][0], 8); } /* Set the layer. */ switch (src->texture->target) { case PIPE_TEXTURE_3D: { float r = layer / (float)u_minify(src->texture->depth0, src->u.tex.first_level); for (i = 0; i < 4; i++) ctx->vertices[i][1][2] = r; /*r*/ } break; case PIPE_TEXTURE_1D_ARRAY: for (i = 0; i < 4; i++) ctx->vertices[i][1][1] = layer; /*t*/ break; case PIPE_TEXTURE_2D_ARRAY: for (i = 0; i < 4; i++) ctx->vertices[i][1][2] = layer; /*r*/ break; default:; } } static void blitter_set_dst_dimensions(struct blitter_context_priv *ctx, unsigned width, unsigned height) { ctx->dst_width = width; ctx->dst_height = height; } static INLINE void *blitter_get_fs_col(struct blitter_context_priv *ctx, unsigned num_cbufs, boolean int_format) { struct pipe_context *pipe = ctx->base.pipe; assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); if (int_format) { if (!ctx->fs_col_int[num_cbufs]) ctx->fs_col_int[num_cbufs] = util_make_fragment_cloneinput_shader(pipe, num_cbufs, TGSI_SEMANTIC_GENERIC, TGSI_INTERPOLATE_CONSTANT); return ctx->fs_col_int[num_cbufs]; } else { if (!ctx->fs_col[num_cbufs]) ctx->fs_col[num_cbufs] = util_make_fragment_cloneinput_shader(pipe, num_cbufs, TGSI_SEMANTIC_GENERIC, TGSI_INTERPOLATE_LINEAR); return ctx->fs_col[num_cbufs]; } } static INLINE void *blitter_get_fs_texfetch_col(struct blitter_context_priv *ctx, unsigned tex_target) { struct pipe_context *pipe = ctx->base.pipe; assert(tex_target < PIPE_MAX_TEXTURE_TYPES); /* Create the fragment shader on-demand. */ if (!ctx->fs_texfetch_col[tex_target]) { unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(tex_target); ctx->fs_texfetch_col[tex_target] = util_make_fragment_tex_shader(pipe, tgsi_tex, TGSI_INTERPOLATE_LINEAR); } return ctx->fs_texfetch_col[tex_target]; } static INLINE void *blitter_get_fs_texfetch_depth(struct blitter_context_priv *ctx, unsigned tex_target) { struct pipe_context *pipe = ctx->base.pipe; assert(tex_target < PIPE_MAX_TEXTURE_TYPES); /* Create the fragment shader on-demand. */ if (!ctx->fs_texfetch_depth[tex_target]) { unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(tex_target); ctx->fs_texfetch_depth[tex_target] = util_make_fragment_tex_shader_writedepth(pipe, tgsi_tex, TGSI_INTERPOLATE_LINEAR); } return ctx->fs_texfetch_depth[tex_target]; } static INLINE void *blitter_get_fs_texfetch_depthstencil(struct blitter_context_priv *ctx, unsigned tex_target) { struct pipe_context *pipe = ctx->base.pipe; assert(tex_target < PIPE_MAX_TEXTURE_TYPES); /* Create the fragment shader on-demand. */ if (!ctx->fs_texfetch_depthstencil[tex_target]) { unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(tex_target); ctx->fs_texfetch_depthstencil[tex_target] = util_make_fragment_tex_shader_writedepthstencil(pipe, tgsi_tex, TGSI_INTERPOLATE_LINEAR); } return ctx->fs_texfetch_depthstencil[tex_target]; } static INLINE void *blitter_get_fs_texfetch_stencil(struct blitter_context_priv *ctx, unsigned tex_target) { struct pipe_context *pipe = ctx->base.pipe; assert(tex_target < PIPE_MAX_TEXTURE_TYPES); /* Create the fragment shader on-demand. */ if (!ctx->fs_texfetch_stencil[tex_target]) { unsigned tgsi_tex = util_pipe_tex_to_tgsi_tex(tex_target); ctx->fs_texfetch_stencil[tex_target] = util_make_fragment_tex_shader_writestencil(pipe, tgsi_tex, TGSI_INTERPOLATE_LINEAR); } return ctx->fs_texfetch_stencil[tex_target]; } static void blitter_set_common_draw_rect_state(struct blitter_context_priv *ctx) { struct pipe_context *pipe = ctx->base.pipe; pipe->bind_rasterizer_state(pipe, ctx->rs_state); pipe->bind_vs_state(pipe, ctx->vs); if (ctx->has_geometry_shader) pipe->bind_gs_state(pipe, NULL); if (ctx->has_stream_out) pipe->set_stream_output_targets(pipe, 0, NULL, 0); } static void blitter_draw(struct blitter_context_priv *ctx, unsigned x1, unsigned y1, unsigned x2, unsigned y2, float depth) { struct pipe_resource *buf = NULL; unsigned offset = 0; blitter_set_rectangle(ctx, x1, y1, x2, y2, depth); u_upload_data(ctx->upload, 0, sizeof(ctx->vertices), ctx->vertices, &offset, &buf); u_upload_unmap(ctx->upload); util_draw_vertex_buffer(ctx->base.pipe, NULL, buf, offset, PIPE_PRIM_TRIANGLE_FAN, 4, 2); pipe_resource_reference(&buf, NULL); } static void blitter_draw_rectangle(struct blitter_context *blitter, unsigned x1, unsigned y1, unsigned x2, unsigned y2, float depth, enum blitter_attrib_type type, const union pipe_color_union *attrib) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; switch (type) { case UTIL_BLITTER_ATTRIB_COLOR: blitter_set_clear_color(ctx, attrib); break; case UTIL_BLITTER_ATTRIB_TEXCOORD: set_texcoords_in_vertices(attrib->f, &ctx->vertices[0][1][0], 8); break; default:; } blitter_draw(ctx, x1, y1, x2, y2, depth); } static void util_blitter_clear_custom(struct blitter_context *blitter, unsigned width, unsigned height, unsigned num_cbufs, unsigned clear_buffers, enum pipe_format cbuf_format, const union pipe_color_union *color, double depth, unsigned stencil, void *custom_blend, void *custom_dsa) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_stencil_ref sr = { { 0 } }; boolean int_format = util_format_is_pure_integer(cbuf_format); assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); blitter_set_running_flag(ctx); blitter_check_saved_vertex_states(ctx); blitter_check_saved_fragment_states(ctx); /* bind states */ if (custom_blend) { pipe->bind_blend_state(pipe, custom_blend); } else if (clear_buffers & PIPE_CLEAR_COLOR) { pipe->bind_blend_state(pipe, ctx->blend_write_color); } else { pipe->bind_blend_state(pipe, ctx->blend_keep_color); } if (custom_dsa) { pipe->bind_depth_stencil_alpha_state(pipe, custom_dsa); } else if ((clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); } else if (clear_buffers & PIPE_CLEAR_DEPTH) { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil); } else if (clear_buffers & PIPE_CLEAR_STENCIL) { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); } else { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); } sr.ref_value[0] = stencil & 0xff; pipe->set_stencil_ref(pipe, &sr); if (util_format_is_pure_sint(cbuf_format)) { pipe->bind_vertex_elements_state(pipe, ctx->velem_sint_state); } else if (util_format_is_pure_uint(cbuf_format)) { pipe->bind_vertex_elements_state(pipe, ctx->velem_uint_state); } else { pipe->bind_vertex_elements_state(pipe, ctx->velem_state); } pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, num_cbufs, int_format)); pipe->set_sample_mask(pipe, ~0); blitter_set_common_draw_rect_state(ctx); blitter_set_dst_dimensions(ctx, width, height); blitter->draw_rectangle(blitter, 0, 0, width, height, depth, UTIL_BLITTER_ATTRIB_COLOR, color); blitter_restore_vertex_states(ctx); blitter_restore_fragment_states(ctx); blitter_unset_running_flag(ctx); } void util_blitter_clear(struct blitter_context *blitter, unsigned width, unsigned height, unsigned num_cbufs, unsigned clear_buffers, enum pipe_format cbuf_format, const union pipe_color_union *color, double depth, unsigned stencil) { util_blitter_clear_custom(blitter, width, height, num_cbufs, clear_buffers, cbuf_format, color, depth, stencil, NULL, NULL); } void util_blitter_clear_depth_custom(struct blitter_context *blitter, unsigned width, unsigned height, double depth, void *custom_dsa) { static const union pipe_color_union color; util_blitter_clear_custom(blitter, width, height, 0, 0, PIPE_FORMAT_NONE, &color, depth, 0, NULL, custom_dsa); } static boolean is_overlap(unsigned sx1, unsigned sx2, unsigned sy1, unsigned sy2, unsigned dx1, unsigned dx2, unsigned dy1, unsigned dy2) { return sx1 < dx2 && sx2 > dx1 && sy1 < dy2 && sy2 > dy1; } void util_blitter_default_dst_texture(struct pipe_surface *dst_templ, struct pipe_resource *dst, unsigned dstlevel, unsigned dstz, const struct pipe_box *srcbox) { memset(dst_templ, 0, sizeof(*dst_templ)); dst_templ->format = dst->format; if (util_format_is_depth_or_stencil(dst->format)) { dst_templ->usage = PIPE_BIND_DEPTH_STENCIL; } else { dst_templ->usage = PIPE_BIND_RENDER_TARGET; } dst_templ->format = util_format_linear(dst->format); dst_templ->u.tex.level = dstlevel; dst_templ->u.tex.first_layer = dstz; dst_templ->u.tex.last_layer = dstz + srcbox->depth - 1; } void util_blitter_default_src_texture(struct pipe_sampler_view *src_templ, struct pipe_resource *src, unsigned srclevel) { memset(src_templ, 0, sizeof(*src_templ)); src_templ->format = util_format_linear(src->format); src_templ->u.tex.first_level = srclevel; src_templ->u.tex.last_level = srclevel; src_templ->u.tex.first_layer = 0; src_templ->u.tex.last_layer = src->target == PIPE_TEXTURE_3D ? u_minify(src->depth0, srclevel) - 1 : src->array_size - 1; src_templ->swizzle_r = PIPE_SWIZZLE_RED; src_templ->swizzle_g = PIPE_SWIZZLE_GREEN; src_templ->swizzle_b = PIPE_SWIZZLE_BLUE; src_templ->swizzle_a = PIPE_SWIZZLE_ALPHA; } void util_blitter_copy_texture(struct blitter_context *blitter, struct pipe_resource *dst, unsigned dst_level, unsigned dstx, unsigned dsty, unsigned dstz, struct pipe_resource *src, unsigned src_level, const struct pipe_box *srcbox, boolean ignore_stencil) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_screen *screen = pipe->screen; struct pipe_surface *dst_view, dst_templ; struct pipe_sampler_view src_templ, *src_view; unsigned bind; boolean is_stencil, is_depth; const struct util_format_description *src_desc; /* Give up if textures are not set. */ assert(dst && src); if (!dst || !src) return; src_desc = util_format_description(src->format); assert(src->target < PIPE_MAX_TEXTURE_TYPES); /* Is this a ZS format? */ is_depth = util_format_has_depth(src_desc); is_stencil = util_format_has_stencil(src_desc); if (is_depth || is_stencil) bind = PIPE_BIND_DEPTH_STENCIL; else bind = PIPE_BIND_RENDER_TARGET; /* Check if we can sample from and render to the surfaces. */ /* (assuming copying a stencil buffer is not possible) */ if ((!ignore_stencil && is_stencil && !ctx->has_stencil_export) || !screen->is_format_supported(screen, dst->format, dst->target, dst->nr_samples, bind) || !screen->is_format_supported(screen, src->format, src->target, src->nr_samples, PIPE_BIND_SAMPLER_VIEW)) { blitter_set_running_flag(ctx); util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz, src, src_level, srcbox); blitter_unset_running_flag(ctx); return; } /* Initialize the surface. */ util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz, srcbox); dst_view = pipe->create_surface(pipe, dst, &dst_templ); /* Initialize the sampler view. */ util_blitter_default_src_texture(&src_templ, src, src_level); src_view = pipe->create_sampler_view(pipe, src, &src_templ); /* Copy. */ util_blitter_copy_texture_view(blitter, dst_view, dstx, dsty, src_view, srcbox, src->width0, src->height0); pipe_surface_reference(&dst_view, NULL); pipe_sampler_view_reference(&src_view, NULL); } void util_blitter_copy_texture_view(struct blitter_context *blitter, struct pipe_surface *dst, unsigned dstx, unsigned dsty, struct pipe_sampler_view *src, const struct pipe_box *srcbox, unsigned src_width0, unsigned src_height0) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_framebuffer_state fb_state; enum pipe_texture_target src_target = src->texture->target; unsigned width = srcbox->width; unsigned height = srcbox->height; boolean is_stencil, is_depth; const struct util_format_description *src_desc = util_format_description(src->format); is_depth = util_format_has_depth(src_desc); is_stencil = util_format_has_stencil(src_desc); /* If you want a fallback for stencil copies, * use util_blitter_copy_texture. */ if (is_stencil && !ctx->has_stencil_export) { is_stencil = FALSE; if (!is_depth) return; } /* Sanity checks. */ if (dst->texture == src->texture && dst->u.tex.level == src->u.tex.first_level) { assert(!is_overlap(srcbox->x, srcbox->x + width, srcbox->y, srcbox->y + height, dstx, dstx + width, dsty, dsty + height)); } /* XXX should handle 3d regions */ assert(srcbox->depth == 1); /* Check whether the states are properly saved. */ blitter_set_running_flag(ctx); blitter_check_saved_vertex_states(ctx); blitter_check_saved_fragment_states(ctx); blitter_check_saved_textures(ctx); blitter_check_saved_fb_state(ctx); /* Initialize framebuffer state. */ fb_state.width = dst->width; fb_state.height = dst->height; if (is_depth || is_stencil) { pipe->bind_blend_state(pipe, ctx->blend_keep_color); if (is_depth && is_stencil) { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); pipe->bind_fs_state(pipe, blitter_get_fs_texfetch_depthstencil(ctx, src_target)); } else if (is_depth) { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil); pipe->bind_fs_state(pipe, blitter_get_fs_texfetch_depth(ctx, src_target)); } else { /* is_stencil */ pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); pipe->bind_fs_state(pipe, blitter_get_fs_texfetch_stencil(ctx, src_target)); } fb_state.nr_cbufs = 0; fb_state.zsbuf = dst; } else { pipe->bind_blend_state(pipe, ctx->blend_write_color); pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); pipe->bind_fs_state(pipe, blitter_get_fs_texfetch_col(ctx, src_target)); fb_state.nr_cbufs = 1; fb_state.cbufs[0] = dst; fb_state.zsbuf = 0; } if (is_depth && is_stencil) { /* Setup two samplers, one for depth and the other one for stencil. */ struct pipe_sampler_view templ; struct pipe_sampler_view *views[2]; void *samplers[2] = {ctx->sampler_state, ctx->sampler_state}; templ = *src; templ.format = util_format_stencil_only(templ.format); assert(templ.format != PIPE_FORMAT_NONE); views[0] = src; views[1] = pipe->create_sampler_view(pipe, src->texture, &templ); pipe->set_fragment_sampler_views(pipe, 2, views); pipe->bind_fragment_sampler_states(pipe, 2, samplers); pipe_sampler_view_reference(&views[1], NULL); } else { pipe->set_fragment_sampler_views(pipe, 1, &src); pipe->bind_fragment_sampler_states(pipe, 1, &ctx->sampler_state); } pipe->bind_vertex_elements_state(pipe, ctx->velem_state); pipe->set_framebuffer_state(pipe, &fb_state); pipe->set_sample_mask(pipe, ~0); blitter_set_common_draw_rect_state(ctx); blitter_set_dst_dimensions(ctx, dst->width, dst->height); switch (src_target) { /* Draw the quad with the draw_rectangle callback. */ case PIPE_TEXTURE_1D: case PIPE_TEXTURE_2D: case PIPE_TEXTURE_RECT: { /* Set texture coordinates. - use a pipe color union * for interface purposes. * XXX pipe_color_union is a wrong name since we use that to set * texture coordinates too. */ union pipe_color_union coord; get_texcoords(src, src_width0, src_height0, srcbox->x, srcbox->y, srcbox->x+width, srcbox->y+height, coord.f); /* Draw. */ blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0, UTIL_BLITTER_ATTRIB_TEXCOORD, &coord); } break; /* Draw the quad with the generic codepath. */ default: /* Set texture coordinates. */ switch (src_target) { case PIPE_TEXTURE_1D_ARRAY: case PIPE_TEXTURE_2D_ARRAY: case PIPE_TEXTURE_3D: case PIPE_TEXTURE_CUBE: blitter_set_texcoords(ctx, src, src_width0, src_height0, srcbox->z, srcbox->y, srcbox->x, srcbox->x + width, srcbox->y + height); break; default: assert(0); } blitter_draw(ctx, dstx, dsty, dstx+width, dsty+height, 0); break; } blitter_restore_vertex_states(ctx); blitter_restore_fragment_states(ctx); blitter_restore_textures(ctx); blitter_restore_fb_state(ctx); blitter_unset_running_flag(ctx); } /* Clear a region of a color surface to a constant value. */ void util_blitter_clear_render_target(struct blitter_context *blitter, struct pipe_surface *dstsurf, const union pipe_color_union *color, unsigned dstx, unsigned dsty, unsigned width, unsigned height) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_framebuffer_state fb_state; assert(dstsurf->texture); if (!dstsurf->texture) return; /* check the saved state */ blitter_set_running_flag(ctx); blitter_check_saved_vertex_states(ctx); blitter_check_saved_fragment_states(ctx); blitter_check_saved_fb_state(ctx); /* bind states */ pipe->bind_blend_state(pipe, ctx->blend_write_color); pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 1, FALSE)); pipe->bind_vertex_elements_state(pipe, ctx->velem_state); /* set a framebuffer state */ fb_state.width = dstsurf->width; fb_state.height = dstsurf->height; fb_state.nr_cbufs = 1; fb_state.cbufs[0] = dstsurf; fb_state.zsbuf = 0; pipe->set_framebuffer_state(pipe, &fb_state); pipe->set_sample_mask(pipe, ~0); blitter_set_common_draw_rect_state(ctx); blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0, UTIL_BLITTER_ATTRIB_COLOR, color); blitter_restore_vertex_states(ctx); blitter_restore_fragment_states(ctx); blitter_restore_fb_state(ctx); blitter_unset_running_flag(ctx); } /* Clear a region of a depth stencil surface. */ void util_blitter_clear_depth_stencil(struct blitter_context *blitter, struct pipe_surface *dstsurf, unsigned clear_flags, double depth, unsigned stencil, unsigned dstx, unsigned dsty, unsigned width, unsigned height) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_framebuffer_state fb_state; struct pipe_stencil_ref sr = { { 0 } }; assert(dstsurf->texture); if (!dstsurf->texture) return; /* check the saved state */ blitter_set_running_flag(ctx); blitter_check_saved_vertex_states(ctx); blitter_check_saved_fragment_states(ctx); blitter_check_saved_fb_state(ctx); /* bind states */ pipe->bind_blend_state(pipe, ctx->blend_keep_color); if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) { sr.ref_value[0] = stencil & 0xff; pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil); pipe->set_stencil_ref(pipe, &sr); } else if (clear_flags & PIPE_CLEAR_DEPTH) { pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_keep_stencil); } else if (clear_flags & PIPE_CLEAR_STENCIL) { sr.ref_value[0] = stencil & 0xff; pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_write_stencil); pipe->set_stencil_ref(pipe, &sr); } else /* hmm that should be illegal probably, or make it a no-op somewhere */ pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0, FALSE)); pipe->bind_vertex_elements_state(pipe, ctx->velem_state); /* set a framebuffer state */ fb_state.width = dstsurf->width; fb_state.height = dstsurf->height; fb_state.nr_cbufs = 0; fb_state.cbufs[0] = 0; fb_state.zsbuf = dstsurf; pipe->set_framebuffer_state(pipe, &fb_state); pipe->set_sample_mask(pipe, ~0); blitter_set_common_draw_rect_state(ctx); blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, depth, UTIL_BLITTER_ATTRIB_NONE, NULL); blitter_restore_vertex_states(ctx); blitter_restore_fragment_states(ctx); blitter_restore_fb_state(ctx); blitter_unset_running_flag(ctx); } /* draw a rectangle across a region using a custom dsa stage - for r600g */ void util_blitter_custom_depth_stencil(struct blitter_context *blitter, struct pipe_surface *zsurf, struct pipe_surface *cbsurf, void *dsa_stage, float depth) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_framebuffer_state fb_state; assert(zsurf->texture); if (!zsurf->texture) return; /* check the saved state */ blitter_set_running_flag(ctx); blitter_check_saved_vertex_states(ctx); blitter_check_saved_fragment_states(ctx); blitter_check_saved_fb_state(ctx); /* bind states */ pipe->bind_blend_state(pipe, ctx->blend_write_color); pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage); pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0, FALSE)); pipe->bind_vertex_elements_state(pipe, ctx->velem_state); /* set a framebuffer state */ fb_state.width = zsurf->width; fb_state.height = zsurf->height; fb_state.nr_cbufs = 1; if (cbsurf) { fb_state.cbufs[0] = cbsurf; fb_state.nr_cbufs = 1; } else { fb_state.cbufs[0] = NULL; fb_state.nr_cbufs = 0; } fb_state.zsbuf = zsurf; pipe->set_framebuffer_state(pipe, &fb_state); blitter_set_common_draw_rect_state(ctx); blitter_set_dst_dimensions(ctx, zsurf->width, zsurf->height); blitter->draw_rectangle(blitter, 0, 0, zsurf->width, zsurf->height, depth, UTIL_BLITTER_ATTRIB_NONE, NULL); blitter_restore_vertex_states(ctx); blitter_restore_fragment_states(ctx); blitter_restore_fb_state(ctx); blitter_unset_running_flag(ctx); } void util_blitter_copy_buffer(struct blitter_context *blitter, struct pipe_resource *dst, unsigned dstx, struct pipe_resource *src, unsigned srcx, unsigned size) { struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; struct pipe_context *pipe = ctx->base.pipe; struct pipe_vertex_buffer vb; struct pipe_stream_output_target *so_target; if (srcx >= src->width0 || dstx >= dst->width0) { return; } if (srcx + size > src->width0) { size = src->width0 - srcx; } if (dstx + size > dst->width0) { size = dst->width0 - dstx; } /* Drivers not capable of Stream Out should not call this function * in the first place. */ assert(ctx->has_stream_out); /* Some alignment is required. */ if (srcx % 4 != 0 || dstx % 4 != 0 || size % 4 != 0 || !ctx->has_stream_out) { struct pipe_box box; u_box_1d(srcx, size, &box); util_resource_copy_region(pipe, dst, 0, dstx, 0, 0, src, 0, &box); return; } blitter_set_running_flag(ctx); blitter_check_saved_vertex_states(ctx); vb.buffer = src; vb.buffer_offset = srcx; vb.stride = 4; pipe->set_vertex_buffers(pipe, 1, &vb); pipe->bind_vertex_elements_state(pipe, ctx->velem_state_readbuf); pipe->bind_vs_state(pipe, ctx->vs_pos_only); if (ctx->has_geometry_shader) pipe->bind_gs_state(pipe, NULL); pipe->bind_rasterizer_state(pipe, ctx->rs_discard_state); so_target = pipe->create_stream_output_target(pipe, dst, dstx, size); pipe->set_stream_output_targets(pipe, 1, &so_target, 0); util_draw_arrays(pipe, PIPE_PRIM_POINTS, 0, size / 4); blitter_restore_vertex_states(ctx); blitter_unset_running_flag(ctx); pipe_so_target_reference(&so_target, NULL); }