i965/gen6: Use the generic ISL-based path for renderbuffer surfaces
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com> Reviewed-by: Chad Versace <chad.versace@intel.com>
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@ -40,107 +40,9 @@
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#include "brw_defines.h"
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#include "brw_wm.h"
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/**
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* Sets up a surface state structure to point at the given region.
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* While it is only used for the front/back buffer currently, it should be
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* usable for further buffers when doing ARB_draw_buffer support.
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*/
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static uint32_t
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gen6_update_renderbuffer_surface(struct brw_context *brw,
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struct gl_renderbuffer *rb,
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bool layered, unsigned unit /* unused */,
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uint32_t surf_index)
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{
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struct gl_context *ctx = &brw->ctx;
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struct intel_renderbuffer *irb = intel_renderbuffer(rb);
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struct intel_mipmap_tree *mt = irb->mt;
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uint32_t *surf;
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uint32_t format = 0;
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uint32_t offset;
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/* _NEW_BUFFERS */
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mesa_format rb_format = _mesa_get_render_format(ctx, intel_rb_format(irb));
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uint32_t surftype;
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int depth = MAX2(irb->layer_count, 1);
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const GLenum gl_target =
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rb->TexImage ? rb->TexImage->TexObject->Target : GL_TEXTURE_2D;
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intel_miptree_used_for_rendering(irb->mt);
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surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE, 6 * 4, 32, &offset);
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format = brw->render_target_format[rb_format];
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if (unlikely(!brw->format_supported_as_render_target[rb_format])) {
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_mesa_problem(ctx, "%s: renderbuffer format %s unsupported\n",
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__func__, _mesa_get_format_name(rb_format));
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}
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switch (gl_target) {
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case GL_TEXTURE_CUBE_MAP_ARRAY:
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case GL_TEXTURE_CUBE_MAP:
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surftype = BRW_SURFACE_2D;
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depth *= 6;
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break;
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case GL_TEXTURE_3D:
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depth = MAX2(irb->mt->logical_depth0, 1);
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/* fallthrough */
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default:
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surftype = translate_tex_target(gl_target);
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break;
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}
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const int min_array_element = irb->mt_layer;
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assert(!layered || irb->mt_layer == 0);
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surf[0] = SET_FIELD(surftype, BRW_SURFACE_TYPE) |
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SET_FIELD(format, BRW_SURFACE_FORMAT);
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/* reloc */
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assert(mt->offset % mt->cpp == 0);
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surf[1] = mt->bo->offset64 + mt->offset;
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/* In the gen6 PRM Volume 1 Part 1: Graphics Core, Section 7.18.3.7.1
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* (Surface Arrays For all surfaces other than separate stencil buffer):
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*
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* "[DevSNB] Errata: Sampler MSAA Qpitch will be 4 greater than the value
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* calculated in the equation above , for every other odd Surface Height
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* starting from 1 i.e. 1,5,9,13"
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*
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* Since this Qpitch errata only impacts the sampler, we have to adjust the
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* input for the rendering surface to achieve the same qpitch. For the
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* affected heights, we increment the height by 1 for the rendering
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* surface.
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*/
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int height0 = irb->mt->logical_height0;
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if (brw->gen == 6 && irb->mt->num_samples > 1 && (height0 % 4) == 1)
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height0++;
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surf[2] = SET_FIELD(mt->logical_width0 - 1, BRW_SURFACE_WIDTH) |
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SET_FIELD(height0 - 1, BRW_SURFACE_HEIGHT) |
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SET_FIELD(irb->mt_level - irb->mt->first_level, BRW_SURFACE_LOD);
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surf[3] = brw_get_surface_tiling_bits(mt->tiling) |
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SET_FIELD(depth - 1, BRW_SURFACE_DEPTH) |
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SET_FIELD(mt->pitch - 1, BRW_SURFACE_PITCH);
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surf[4] = brw_get_surface_num_multisamples(mt->num_samples) |
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SET_FIELD(min_array_element, BRW_SURFACE_MIN_ARRAY_ELEMENT) |
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SET_FIELD(depth - 1, BRW_SURFACE_RENDER_TARGET_VIEW_EXTENT);
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surf[5] = (mt->valign == 4 ? BRW_SURFACE_VERTICAL_ALIGN_ENABLE : 0);
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drm_intel_bo_emit_reloc(brw->batch.bo,
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offset + 4,
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mt->bo,
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surf[1] - mt->bo->offset64,
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I915_GEM_DOMAIN_RENDER,
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I915_GEM_DOMAIN_RENDER);
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return offset;
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}
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void
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gen6_init_vtable_surface_functions(struct brw_context *brw)
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{
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gen4_init_vtable_surface_functions(brw);
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brw->vtbl.update_renderbuffer_surface = gen6_update_renderbuffer_surface;
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brw->vtbl.update_renderbuffer_surface = brw_update_renderbuffer_surface;
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}
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