/* * Copyright (c) 2014 Intel Corporation * * 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 "main/context.h" #include "main/blend.h" #include "main/mtypes.h" #include "main/samplerobj.h" #include "main/texformat.h" #include "program/prog_parameter.h" #include "intel_mipmap_tree.h" #include "intel_batchbuffer.h" #include "intel_tex.h" #include "intel_fbo.h" #include "intel_buffer_objects.h" #include "brw_context.h" #include "brw_state.h" #include "brw_defines.h" #include "brw_wm.h" /** * Sets up a surface state structure to point at the given region. * While it is only used for the front/back buffer currently, it should be * usable for further buffers when doing ARB_draw_buffer support. */ static void gen6_update_renderbuffer_surface(struct brw_context *brw, struct gl_renderbuffer *rb, bool layered, unsigned int unit) { struct gl_context *ctx = &brw->ctx; struct intel_renderbuffer *irb = intel_renderbuffer(rb); struct intel_mipmap_tree *mt = irb->mt; uint32_t *surf; uint32_t format = 0; /* _NEW_BUFFERS */ mesa_format rb_format = _mesa_get_render_format(ctx, intel_rb_format(irb)); uint32_t surftype; int depth = MAX2(irb->layer_count, 1); const GLenum gl_target = rb->TexImage ? rb->TexImage->TexObject->Target : GL_TEXTURE_2D; uint32_t surf_index = brw->wm.prog_data->binding_table.render_target_start + unit; intel_miptree_used_for_rendering(irb->mt); surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE, 6 * 4, 32, &brw->wm.base.surf_offset[surf_index]); format = brw->render_target_format[rb_format]; if (unlikely(!brw->format_supported_as_render_target[rb_format])) { _mesa_problem(ctx, "%s: renderbuffer format %s unsupported\n", __func__, _mesa_get_format_name(rb_format)); } switch (gl_target) { case GL_TEXTURE_CUBE_MAP_ARRAY: case GL_TEXTURE_CUBE_MAP: surftype = BRW_SURFACE_2D; depth *= 6; break; case GL_TEXTURE_3D: depth = MAX2(irb->mt->logical_depth0, 1); /* fallthrough */ default: surftype = translate_tex_target(gl_target); break; } const int min_array_element = layered ? 0 : irb->mt_layer; surf[0] = SET_FIELD(surftype, BRW_SURFACE_TYPE) | SET_FIELD(format, BRW_SURFACE_FORMAT); /* reloc */ assert(mt->offset % mt->cpp == 0); surf[1] = mt->bo->offset64 + mt->offset; /* In the gen6 PRM Volume 1 Part 1: Graphics Core, Section 7.18.3.7.1 * (Surface Arrays For all surfaces other than separate stencil buffer): * * "[DevSNB] Errata: Sampler MSAA Qpitch will be 4 greater than the value * calculated in the equation above , for every other odd Surface Height * starting from 1 i.e. 1,5,9,13" * * Since this Qpitch errata only impacts the sampler, we have to adjust the * input for the rendering surface to achieve the same qpitch. For the * affected heights, we increment the height by 1 for the rendering * surface. */ int height0 = irb->mt->logical_height0; if (brw->gen == 6 && irb->mt->num_samples > 1 && (height0 % 4) == 1) height0++; surf[2] = SET_FIELD(mt->logical_width0 - 1, BRW_SURFACE_WIDTH) | SET_FIELD(height0 - 1, BRW_SURFACE_HEIGHT) | SET_FIELD(irb->mt_level - irb->mt->first_level, BRW_SURFACE_LOD); surf[3] = brw_get_surface_tiling_bits(mt->tiling) | SET_FIELD(depth - 1, BRW_SURFACE_DEPTH) | SET_FIELD(mt->pitch - 1, BRW_SURFACE_PITCH); surf[4] = brw_get_surface_num_multisamples(mt->num_samples) | SET_FIELD(min_array_element, BRW_SURFACE_MIN_ARRAY_ELEMENT) | SET_FIELD(depth - 1, BRW_SURFACE_RENDER_TARGET_VIEW_EXTENT); surf[5] = (mt->align_h == 4 ? BRW_SURFACE_VERTICAL_ALIGN_ENABLE : 0); drm_intel_bo_emit_reloc(brw->batch.bo, brw->wm.base.surf_offset[surf_index] + 4, mt->bo, surf[1] - mt->bo->offset64, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER); } void gen6_init_vtable_surface_functions(struct brw_context *brw) { gen4_init_vtable_surface_functions(brw); brw->vtbl.update_renderbuffer_surface = gen6_update_renderbuffer_surface; }