--- /dev/null
+/*
+ * Copyright © 2012 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/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"
+
+static uint32_t
+surface_tiling_mode(uint32_t tiling)
+{
+ switch (tiling) {
+ case I915_TILING_X:
+ return GEN8_SURFACE_TILING_X;
+ case I915_TILING_Y:
+ return GEN8_SURFACE_TILING_Y;
+ default:
+ return GEN8_SURFACE_TILING_NONE;
+ }
+}
+
+static unsigned
+vertical_alignment(struct intel_mipmap_tree *mt)
+{
+ switch (mt->align_h) {
+ case 4:
+ return GEN8_SURFACE_VALIGN_4;
+ case 8:
+ return GEN8_SURFACE_VALIGN_8;
+ case 16:
+ return GEN8_SURFACE_VALIGN_16;
+ default:
+ assert(!"Unsupported vertical surface alignment.");
+ return GEN8_SURFACE_VALIGN_4;
+ }
+}
+
+static unsigned
+horizontal_alignment(struct intel_mipmap_tree *mt)
+{
+ switch (mt->align_w) {
+ case 4:
+ return GEN8_SURFACE_HALIGN_4;
+ case 8:
+ return GEN8_SURFACE_HALIGN_8;
+ case 16:
+ return GEN8_SURFACE_HALIGN_16;
+ default:
+ assert(!"Unsupported horizontal surface alignment.");
+ return GEN8_SURFACE_HALIGN_4;
+ }
+}
+
+static uint32_t
+surface_num_multisamples(unsigned num_samples)
+{
+ assert(num_samples >= 0 && num_samples <= 16);
+
+ if (num_samples == 0)
+ return GEN7_SURFACE_MULTISAMPLECOUNT_1;
+
+ /* The SURFACE_MULTISAMPLECOUNT_X enums are simply log2(num_samples) << 3. */
+ return (ffs(num_samples) - 1) << 3;
+}
+
+static void
+gen8_emit_buffer_surface_state(struct brw_context *brw,
+ uint32_t *out_offset,
+ drm_intel_bo *bo,
+ unsigned buffer_offset,
+ unsigned surface_format,
+ unsigned buffer_size,
+ unsigned pitch,
+ unsigned mocs,
+ bool rw)
+{
+ uint32_t *surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE,
+ 13 * 4, 64, out_offset);
+ memset(surf, 0, 13 * 4);
+
+ surf[0] = BRW_SURFACE_BUFFER << BRW_SURFACE_TYPE_SHIFT |
+ surface_format << BRW_SURFACE_FORMAT_SHIFT |
+ BRW_SURFACE_RC_READ_WRITE;
+
+ surf[2] = SET_FIELD((buffer_size - 1) & 0x7f, GEN7_SURFACE_WIDTH) |
+ SET_FIELD(((buffer_size - 1) >> 7) & 0x3fff, GEN7_SURFACE_HEIGHT);
+ surf[3] = SET_FIELD(((buffer_size - 1) >> 21) & 0x3f, BRW_SURFACE_DEPTH) |
+ (pitch - 1);
+ surf[7] = SET_FIELD(HSW_SCS_RED, GEN7_SURFACE_SCS_R) |
+ SET_FIELD(HSW_SCS_GREEN, GEN7_SURFACE_SCS_G) |
+ SET_FIELD(HSW_SCS_BLUE, GEN7_SURFACE_SCS_B) |
+ SET_FIELD(HSW_SCS_ALPHA, GEN7_SURFACE_SCS_A);
+ /* reloc */
+ *((uint64_t *) &surf[8]) = (bo ? bo->offset64 : 0) + buffer_offset;
+
+ /* Emit relocation to surface contents. */
+ if (bo) {
+ drm_intel_bo_emit_reloc(brw->batch.bo, *out_offset + 8 * 4,
+ bo, buffer_offset, I915_GEM_DOMAIN_SAMPLER,
+ rw ? I915_GEM_DOMAIN_SAMPLER : 0);
+ }
+}
+
+static void
+gen8_update_texture_surface(struct gl_context *ctx,
+ unsigned unit,
+ uint32_t *surf_offset,
+ bool for_gather)
+{
+ struct brw_context *brw = brw_context(ctx);
+ struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
+ struct intel_texture_object *intelObj = intel_texture_object(tObj);
+ struct intel_mipmap_tree *mt = intelObj->mt;
+ struct gl_texture_image *firstImage = tObj->Image[0][tObj->BaseLevel];
+ struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
+
+ if (tObj->Target == GL_TEXTURE_BUFFER) {
+ brw_update_buffer_texture_surface(ctx, unit, surf_offset);
+ return;
+ }
+
+ uint32_t tex_format = translate_tex_format(brw,
+ mt->format,
+ sampler->sRGBDecode);
+
+ uint32_t *surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE,
+ 13 * 4, 64, surf_offset);
+
+ surf[0] = translate_tex_target(tObj->Target) << BRW_SURFACE_TYPE_SHIFT |
+ tex_format << BRW_SURFACE_FORMAT_SHIFT |
+ vertical_alignment(mt) |
+ horizontal_alignment(mt) |
+ surface_tiling_mode(mt->region->tiling);
+
+ if (tObj->Target == GL_TEXTURE_CUBE_MAP ||
+ tObj->Target == GL_TEXTURE_CUBE_MAP_ARRAY) {
+ surf[0] |= BRW_SURFACE_CUBEFACE_ENABLES;
+ }
+
+ if (mt->logical_depth0 > 1 && tObj->Target != GL_TEXTURE_3D)
+ surf[0] |= GEN8_SURFACE_IS_ARRAY;
+
+ surf[1] = mt->qpitch >> 2;
+
+ surf[2] = SET_FIELD(mt->logical_width0 - 1, GEN7_SURFACE_WIDTH) |
+ SET_FIELD(mt->logical_height0 - 1, GEN7_SURFACE_HEIGHT);
+
+ surf[3] = SET_FIELD(mt->logical_depth0 - 1, BRW_SURFACE_DEPTH) |
+ (mt->region->pitch - 1);
+
+ surf[4] = surface_num_multisamples(mt->num_samples);
+
+ surf[5] = SET_FIELD(tObj->BaseLevel - mt->first_level, GEN7_SURFACE_MIN_LOD) |
+ (intelObj->_MaxLevel - tObj->BaseLevel); /* mip count */
+
+ surf[6] = 0;
+
+ /* Handling GL_ALPHA as a surface format override breaks 1.30+ style
+ * texturing functions that return a float, as our code generation always
+ * selects the .x channel (which would always be 0).
+ */
+ const bool alpha_depth = tObj->DepthMode == GL_ALPHA &&
+ (firstImage->_BaseFormat == GL_DEPTH_COMPONENT ||
+ firstImage->_BaseFormat == GL_DEPTH_STENCIL);
+
+ const int swizzle =
+ unlikely(alpha_depth) ? SWIZZLE_XYZW : brw_get_texture_swizzle(ctx, tObj);
+ surf[7] =
+ SET_FIELD(brw_swizzle_to_scs(GET_SWZ(swizzle, 0), false), GEN7_SURFACE_SCS_R) |
+ SET_FIELD(brw_swizzle_to_scs(GET_SWZ(swizzle, 1), false), GEN7_SURFACE_SCS_G) |
+ SET_FIELD(brw_swizzle_to_scs(GET_SWZ(swizzle, 2), false), GEN7_SURFACE_SCS_B) |
+ SET_FIELD(brw_swizzle_to_scs(GET_SWZ(swizzle, 3), false), GEN7_SURFACE_SCS_A);
+
+ *((uint64_t *) &surf[8]) = mt->region->bo->offset64 + mt->offset; /* reloc */
+
+ surf[10] = 0;
+ surf[11] = 0;
+ surf[12] = 0;
+
+ /* Emit relocation to surface contents */
+ drm_intel_bo_emit_reloc(brw->batch.bo,
+ *surf_offset + 8 * 4,
+ mt->region->bo,
+ mt->offset,
+ I915_GEM_DOMAIN_SAMPLER, 0);
+}
+
+/**
+ * Create the constant buffer surface. Vertex/fragment shader constants will be
+ * read from this buffer with Data Port Read instructions/messages.
+ */
+static void
+gen8_update_null_renderbuffer_surface(struct brw_context *brw, unsigned unit)
+{
+ struct gl_context *ctx = &brw->ctx;
+
+ /* _NEW_BUFFERS */
+ const struct gl_framebuffer *fb = ctx->DrawBuffer;
+ uint32_t surf_index =
+ brw->wm.prog_data->binding_table.render_target_start + unit;
+
+ uint32_t *surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE, 13 * 4, 64,
+ &brw->wm.base.surf_offset[surf_index]);
+ memset(surf, 0, 13 * 4);
+
+ surf[0] = BRW_SURFACE_NULL << BRW_SURFACE_TYPE_SHIFT |
+ BRW_SURFACEFORMAT_B8G8R8A8_UNORM << BRW_SURFACE_FORMAT_SHIFT |
+ GEN8_SURFACE_TILING_Y;
+ surf[2] = SET_FIELD(fb->Width - 1, GEN7_SURFACE_WIDTH) |
+ SET_FIELD(fb->Height - 1, GEN7_SURFACE_HEIGHT);
+}
+
+/**
+ * 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
+gen8_update_renderbuffer_surface(struct brw_context *brw,
+ struct gl_renderbuffer *rb,
+ bool layered,
+ unsigned unit)
+{
+ struct gl_context *ctx = &brw->ctx;
+ struct intel_renderbuffer *irb = intel_renderbuffer(rb);
+ struct intel_mipmap_tree *mt = irb->mt;
+ struct intel_region *region = mt->region;
+ uint32_t format = 0;
+ uint32_t surf_type;
+ bool is_array = false;
+ int depth = MAX2(rb->Depth, 1);
+ int min_array_element;
+
+ 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(mt);
+
+ /* Render targets can't use IMS layout. */
+ assert(mt->msaa_layout != INTEL_MSAA_LAYOUT_IMS);
+
+ switch (gl_target) {
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ case GL_TEXTURE_CUBE_MAP:
+ surf_type = BRW_SURFACE_2D;
+ is_array = true;
+ depth *= 6;
+ break;
+ default:
+ surf_type = translate_tex_target(gl_target);
+ is_array = _mesa_tex_target_is_array(gl_target);
+ break;
+ }
+
+ if (layered) {
+ min_array_element = 0;
+ } else if (mt->num_samples > 1) {
+ min_array_element = irb->mt_layer / mt->num_samples;
+ } else {
+ min_array_element = irb->mt_layer;
+ }
+
+ /* _NEW_BUFFERS */
+ mesa_format rb_format = _mesa_get_render_format(ctx, intel_rb_format(irb));
+ assert(brw_render_target_supported(brw, rb));
+ 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",
+ __FUNCTION__, _mesa_get_format_name(rb_format));
+ }
+
+ uint32_t *surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE, 13 * 4, 64,
+ &brw->wm.base.surf_offset[surf_index]);
+
+ surf[0] = (surf_type << BRW_SURFACE_TYPE_SHIFT) |
+ (is_array ? GEN7_SURFACE_IS_ARRAY : 0) |
+ (format << BRW_SURFACE_FORMAT_SHIFT) |
+ vertical_alignment(mt) |
+ horizontal_alignment(mt) |
+ surface_tiling_mode(region->tiling);
+
+ surf[1] = mt->qpitch >> 2;
+
+ surf[2] = SET_FIELD(mt->logical_width0 - 1, GEN7_SURFACE_WIDTH) |
+ SET_FIELD(mt->logical_height0 - 1, GEN7_SURFACE_HEIGHT);
+
+ surf[3] = (depth - 1) << BRW_SURFACE_DEPTH_SHIFT |
+ (region->pitch - 1); /* Surface Pitch */
+
+ surf[4] = surface_num_multisamples(mt->num_samples) |
+ min_array_element << GEN7_SURFACE_MIN_ARRAY_ELEMENT_SHIFT |
+ (depth - 1) << GEN7_SURFACE_RENDER_TARGET_VIEW_EXTENT_SHIFT;
+
+ surf[5] = irb->mt_level - irb->mt->first_level;
+
+ surf[6] = 0; /* Nothing of relevance. */
+
+ surf[7] = mt->fast_clear_color_value |
+ SET_FIELD(HSW_SCS_RED, GEN7_SURFACE_SCS_R) |
+ SET_FIELD(HSW_SCS_GREEN, GEN7_SURFACE_SCS_G) |
+ SET_FIELD(HSW_SCS_BLUE, GEN7_SURFACE_SCS_B) |
+ SET_FIELD(HSW_SCS_ALPHA, GEN7_SURFACE_SCS_A);
+
+ *((uint64_t *) &surf[8]) = region->bo->offset64; /* reloc */
+
+ /* Nothing of relevance. */
+ surf[10] = 0;
+ surf[11] = 0;
+ surf[12] = 0;
+
+ drm_intel_bo_emit_reloc(brw->batch.bo,
+ brw->wm.base.surf_offset[surf_index] + 8 * 4,
+ region->bo,
+ 0,
+ I915_GEM_DOMAIN_RENDER,
+ I915_GEM_DOMAIN_RENDER);
+}
+
+void
+gen8_init_vtable_surface_functions(struct brw_context *brw)
+{
+ brw->vtbl.update_texture_surface = gen8_update_texture_surface;
+ brw->vtbl.update_renderbuffer_surface = gen8_update_renderbuffer_surface;
+ brw->vtbl.update_null_renderbuffer_surface =
+ gen8_update_null_renderbuffer_surface;
+ brw->vtbl.emit_buffer_surface_state = gen8_emit_buffer_surface_state;
+}
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