/** * Save all the CSO state items specified by the state_mask bitmask * of CSO_BIT_x flags. */ void cso_save_state(struct cso_context *cso, unsigned state_mask) { assert(cso->saved_state == 0); cso->saved_state = state_mask; if (state_mask & CSO_BIT_AUX_VERTEX_BUFFER_SLOT) cso_save_aux_vertex_buffer_slot(cso); if (state_mask & CSO_BIT_BLEND) cso_save_blend(cso); if (state_mask & CSO_BIT_DEPTH_STENCIL_ALPHA) cso_save_depth_stencil_alpha(cso); if (state_mask & CSO_BIT_FRAGMENT_SAMPLERS) cso_save_fragment_samplers(cso); if (state_mask & CSO_BIT_FRAGMENT_SAMPLER_VIEWS) cso_save_fragment_sampler_views(cso); if (state_mask & CSO_BIT_FRAGMENT_SHADER) cso_save_fragment_shader(cso); if (state_mask & CSO_BIT_FRAMEBUFFER) cso_save_framebuffer(cso); if (state_mask & CSO_BIT_GEOMETRY_SHADER) cso_save_geometry_shader(cso); if (state_mask & CSO_BIT_MIN_SAMPLES) cso_save_min_samples(cso); if (state_mask & CSO_BIT_RASTERIZER) cso_save_rasterizer(cso); if (state_mask & CSO_BIT_RENDER_CONDITION) cso_save_render_condition(cso); if (state_mask & CSO_BIT_SAMPLE_MASK) cso_save_sample_mask(cso); if (state_mask & CSO_BIT_STENCIL_REF) cso_save_stencil_ref(cso); if (state_mask & CSO_BIT_STREAM_OUTPUTS) cso_save_stream_outputs(cso); if (state_mask & CSO_BIT_TESSCTRL_SHADER) cso_save_tessctrl_shader(cso); if (state_mask & CSO_BIT_TESSEVAL_SHADER) cso_save_tesseval_shader(cso); if (state_mask & CSO_BIT_VERTEX_ELEMENTS) cso_save_vertex_elements(cso); if (state_mask & CSO_BIT_VERTEX_SHADER) cso_save_vertex_shader(cso); if (state_mask & CSO_BIT_VIEWPORT) cso_save_viewport(cso); if (state_mask & CSO_BIT_PAUSE_QUERIES) cso->pipe->set_active_query_state(cso->pipe, false); }
/** * Copy pixel block from src sampler view to dst surface. * * The sampler view's first_level field indicates the source * mipmap level to use. * * The sampler view's first_layer indicate the layer to use, but for * cube maps it must point to the first face. Face is passed in src_face. * * The main advantage over util_blit_pixels is that it allows to specify swizzles in * pipe_sampler_view::swizzle_?. * * But there is no control over blitting Z and/or stencil. */ void util_blit_pixels_tex(struct blit_state *ctx, struct pipe_sampler_view *src_sampler_view, int srcX0, int srcY0, int srcX1, int srcY1, unsigned src_face, struct pipe_surface *dst, int dstX0, int dstY0, int dstX1, int dstY1, float z, uint filter) { boolean normalized = src_sampler_view->texture->target != PIPE_TEXTURE_RECT; struct pipe_framebuffer_state fb; float s0, t0, s1, t1; unsigned offset; struct pipe_resource *tex = src_sampler_view->texture; assert(filter == PIPE_TEX_MIPFILTER_NEAREST || filter == PIPE_TEX_MIPFILTER_LINEAR); assert(tex); assert(tex->width0 != 0); assert(tex->height0 != 0); s0 = (float) srcX0; s1 = (float) srcX1; t0 = (float) srcY0; t1 = (float) srcY1; if(normalized) { /* normalize according to the mipmap level's size */ int level = src_sampler_view->u.tex.first_level; float w = (float) u_minify(tex->width0, level); float h = (float) u_minify(tex->height0, level); s0 /= w; s1 /= w; t0 /= h; t1 /= h; } assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format, PIPE_TEXTURE_2D, dst->texture->nr_samples, PIPE_BIND_RENDER_TARGET)); /* save state (restored below) */ cso_save_blend(ctx->cso); cso_save_depth_stencil_alpha(ctx->cso); cso_save_rasterizer(ctx->cso); cso_save_sample_mask(ctx->cso); cso_save_min_samples(ctx->cso); cso_save_samplers(ctx->cso, PIPE_SHADER_FRAGMENT); cso_save_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT); cso_save_stream_outputs(ctx->cso); cso_save_viewport(ctx->cso); cso_save_framebuffer(ctx->cso); cso_save_fragment_shader(ctx->cso); cso_save_vertex_shader(ctx->cso); cso_save_geometry_shader(ctx->cso); cso_save_vertex_elements(ctx->cso); cso_save_aux_vertex_buffer_slot(ctx->cso); /* set misc state we care about */ cso_set_blend(ctx->cso, &ctx->blend_write_color); cso_set_depth_stencil_alpha(ctx->cso, &ctx->dsa_keep_depthstencil); cso_set_sample_mask(ctx->cso, ~0); cso_set_min_samples(ctx->cso, 1); cso_set_rasterizer(ctx->cso, &ctx->rasterizer); cso_set_vertex_elements(ctx->cso, 2, ctx->velem); cso_set_stream_outputs(ctx->cso, 0, NULL, NULL); /* sampler */ ctx->sampler.normalized_coords = normalized; ctx->sampler.min_img_filter = filter; ctx->sampler.mag_img_filter = filter; cso_single_sampler(ctx->cso, PIPE_SHADER_FRAGMENT, 0, &ctx->sampler); cso_single_sampler_done(ctx->cso, PIPE_SHADER_FRAGMENT); /* viewport */ ctx->viewport.scale[0] = 0.5f * dst->width; ctx->viewport.scale[1] = 0.5f * dst->height; ctx->viewport.scale[2] = 0.5f; ctx->viewport.scale[3] = 1.0f; ctx->viewport.translate[0] = 0.5f * dst->width; ctx->viewport.translate[1] = 0.5f * dst->height; ctx->viewport.translate[2] = 0.5f; ctx->viewport.translate[3] = 0.0f; cso_set_viewport(ctx->cso, &ctx->viewport); /* texture */ cso_set_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT, 1, &src_sampler_view); /* shaders */ set_fragment_shader(ctx, TGSI_WRITEMASK_XYZW, src_sampler_view->texture->target); set_vertex_shader(ctx); cso_set_geometry_shader_handle(ctx->cso, NULL); /* drawing dest */ memset(&fb, 0, sizeof(fb)); fb.width = dst->width; fb.height = dst->height; fb.nr_cbufs = 1; fb.cbufs[0] = dst; cso_set_framebuffer(ctx->cso, &fb); /* draw quad */ offset = setup_vertex_data_tex(ctx, src_sampler_view->texture->target, src_face, (float) dstX0 / dst->width * 2.0f - 1.0f, (float) dstY0 / dst->height * 2.0f - 1.0f, (float) dstX1 / dst->width * 2.0f - 1.0f, (float) dstY1 / dst->height * 2.0f - 1.0f, s0, t0, s1, t1, z); util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf, cso_get_aux_vertex_buffer_slot(ctx->cso), offset, PIPE_PRIM_TRIANGLE_FAN, 4, /* verts */ 2); /* attribs/vert */ /* restore state we changed */ cso_restore_blend(ctx->cso); cso_restore_depth_stencil_alpha(ctx->cso); cso_restore_rasterizer(ctx->cso); cso_restore_sample_mask(ctx->cso); cso_restore_min_samples(ctx->cso); cso_restore_samplers(ctx->cso, PIPE_SHADER_FRAGMENT); cso_restore_sampler_views(ctx->cso, PIPE_SHADER_FRAGMENT); cso_restore_viewport(ctx->cso); cso_restore_framebuffer(ctx->cso); cso_restore_fragment_shader(ctx->cso); cso_restore_vertex_shader(ctx->cso); cso_restore_geometry_shader(ctx->cso); cso_restore_vertex_elements(ctx->cso); cso_restore_aux_vertex_buffer_slot(ctx->cso); cso_restore_stream_outputs(ctx->cso); }
/** * Do glClear by drawing a quadrilateral. * The vertices of the quad will be computed from the * ctx->DrawBuffer->_X/Ymin/max fields. */ static void clear_with_quad(struct gl_context *ctx, unsigned clear_buffers) { struct st_context *st = st_context(ctx); const struct gl_framebuffer *fb = ctx->DrawBuffer; const GLfloat fb_width = (GLfloat) fb->Width; const GLfloat fb_height = (GLfloat) fb->Height; const GLfloat x0 = (GLfloat) ctx->DrawBuffer->_Xmin / fb_width * 2.0f - 1.0f; const GLfloat x1 = (GLfloat) ctx->DrawBuffer->_Xmax / fb_width * 2.0f - 1.0f; const GLfloat y0 = (GLfloat) ctx->DrawBuffer->_Ymin / fb_height * 2.0f - 1.0f; const GLfloat y1 = (GLfloat) ctx->DrawBuffer->_Ymax / fb_height * 2.0f - 1.0f; unsigned num_layers = util_framebuffer_get_num_layers(&st->state.framebuffer); /* printf("%s %s%s%s %f,%f %f,%f\n", __FUNCTION__, color ? "color, " : "", depth ? "depth, " : "", stencil ? "stencil" : "", x0, y0, x1, y1); */ cso_save_blend(st->cso_context); cso_save_stencil_ref(st->cso_context); cso_save_depth_stencil_alpha(st->cso_context); cso_save_rasterizer(st->cso_context); cso_save_sample_mask(st->cso_context); cso_save_min_samples(st->cso_context); cso_save_viewport(st->cso_context); cso_save_fragment_shader(st->cso_context); cso_save_stream_outputs(st->cso_context); cso_save_vertex_shader(st->cso_context); cso_save_geometry_shader(st->cso_context); cso_save_vertex_elements(st->cso_context); cso_save_aux_vertex_buffer_slot(st->cso_context); /* blend state: RGBA masking */ { struct pipe_blend_state blend; memset(&blend, 0, sizeof(blend)); if (clear_buffers & PIPE_CLEAR_COLOR) { int num_buffers = ctx->Extensions.EXT_draw_buffers2 ? ctx->DrawBuffer->_NumColorDrawBuffers : 1; int i; blend.independent_blend_enable = num_buffers > 1; for (i = 0; i < num_buffers; i++) { if (!(clear_buffers & (PIPE_CLEAR_COLOR0 << i))) continue; if (ctx->Color.ColorMask[i][0]) blend.rt[i].colormask |= PIPE_MASK_R; if (ctx->Color.ColorMask[i][1]) blend.rt[i].colormask |= PIPE_MASK_G; if (ctx->Color.ColorMask[i][2]) blend.rt[i].colormask |= PIPE_MASK_B; if (ctx->Color.ColorMask[i][3]) blend.rt[i].colormask |= PIPE_MASK_A; } if (st->ctx->Color.DitherFlag) blend.dither = 1; } cso_set_blend(st->cso_context, &blend); } /* depth_stencil state: always pass/set to ref value */ { struct pipe_depth_stencil_alpha_state depth_stencil; memset(&depth_stencil, 0, sizeof(depth_stencil)); if (clear_buffers & PIPE_CLEAR_DEPTH) { depth_stencil.depth.enabled = 1; depth_stencil.depth.writemask = 1; depth_stencil.depth.func = PIPE_FUNC_ALWAYS; } if (clear_buffers & PIPE_CLEAR_STENCIL) { struct pipe_stencil_ref stencil_ref; memset(&stencil_ref, 0, sizeof(stencil_ref)); depth_stencil.stencil[0].enabled = 1; depth_stencil.stencil[0].func = PIPE_FUNC_ALWAYS; depth_stencil.stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE; depth_stencil.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; depth_stencil.stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE; depth_stencil.stencil[0].valuemask = 0xff; depth_stencil.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff; stencil_ref.ref_value[0] = ctx->Stencil.Clear; cso_set_stencil_ref(st->cso_context, &stencil_ref); } cso_set_depth_stencil_alpha(st->cso_context, &depth_stencil); } cso_set_vertex_elements(st->cso_context, 2, st->velems_util_draw); cso_set_stream_outputs(st->cso_context, 0, NULL, NULL); cso_set_sample_mask(st->cso_context, ~0); cso_set_min_samples(st->cso_context, 1); cso_set_rasterizer(st->cso_context, &st->clear.raster); /* viewport state: viewport matching window dims */ { const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP); struct pipe_viewport_state vp; vp.scale[0] = 0.5f * fb_width; vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f); vp.scale[2] = 1.0f; vp.scale[3] = 1.0f; vp.translate[0] = 0.5f * fb_width; vp.translate[1] = 0.5f * fb_height; vp.translate[2] = 0.0f; vp.translate[3] = 0.0f; cso_set_viewport(st->cso_context, &vp); } set_fragment_shader(st); cso_set_geometry_shader_handle(st->cso_context, NULL); if (num_layers > 1) set_vertex_shader_layered(st); else set_vertex_shader(st); /* We can't translate the clear color to the colorbuffer format, * because different colorbuffers may have different formats. */ /* draw quad matching scissor rect */ draw_quad(st, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, num_layers, (union pipe_color_union*)&ctx->Color.ClearColor); /* Restore pipe state */ cso_restore_blend(st->cso_context); cso_restore_stencil_ref(st->cso_context); cso_restore_depth_stencil_alpha(st->cso_context); cso_restore_rasterizer(st->cso_context); cso_restore_sample_mask(st->cso_context); cso_restore_min_samples(st->cso_context); cso_restore_viewport(st->cso_context); cso_restore_fragment_shader(st->cso_context); cso_restore_vertex_shader(st->cso_context); cso_restore_geometry_shader(st->cso_context); cso_restore_vertex_elements(st->cso_context); cso_restore_aux_vertex_buffer_slot(st->cso_context); cso_restore_stream_outputs(st->cso_context); }