layers:Refactor CmdBeginRenderPass()

Only perform state updates for CmdBeginRenderPass() if we're not
skipping the call to the driver.

Also update validateSubpassCompatibility() to return early if skip is
set to "true." That function will only return a single error code so in
the event that we hit a skip case go ahead and just return early as we
don't need to flag same code multiple times.

Author: tobine

layers/core_validation.cpp

@@ -867,8 +867,9 @@ static bool validateSubpassCompatibility(layer_data const *dev_data, const char
         if (i < secondary_desc.inputAttachmentCount) {
             secondary_input_attach = secondary_desc.pInputAttachments[i].attachment;
         }
-        skip |= validateAttachmentCompatibility(dev_data, type1_string, rp1_state, type2_string, rp2_state, primary_input_attach,
-                                                secondary_input_attach, caller, error_code);
+        if (validateAttachmentCompatibility(dev_data, type1_string, rp1_state, type2_string, rp2_state, primary_input_attach,
+                                            secondary_input_attach, caller, error_code))
+            return true;
     }
     uint32_t maxColorAttachmentCount = std::max(primary_desc.colorAttachmentCount, secondary_desc.colorAttachmentCount);
     for (uint32_t i = 0; i < maxColorAttachmentCount; ++i) {
@@ -879,17 +880,20 @@ static bool validateSubpassCompatibility(layer_data const *dev_data, const char
         if (i < secondary_desc.colorAttachmentCount) {
             secondary_color_attach = secondary_desc.pColorAttachments[i].attachment;
         }
-        skip |= validateAttachmentCompatibility(dev_data, type1_string, rp1_state, type2_string, rp2_state, primary_color_attach,
-                                                secondary_color_attach, caller, error_code);
+        if (validateAttachmentCompatibility(dev_data, type1_string, rp1_state, type2_string, rp2_state, primary_color_attach,
+                                            secondary_color_attach, caller, error_code))
+            return true;
+
         uint32_t primary_resolve_attach = VK_ATTACHMENT_UNUSED, secondary_resolve_attach = VK_ATTACHMENT_UNUSED;
         if (i < primary_desc.colorAttachmentCount && primary_desc.pResolveAttachments) {
             primary_resolve_attach = primary_desc.pResolveAttachments[i].attachment;
         }
         if (i < secondary_desc.colorAttachmentCount && secondary_desc.pResolveAttachments) {
             secondary_resolve_attach = secondary_desc.pResolveAttachments[i].attachment;
         }
-        skip |= validateAttachmentCompatibility(dev_data, type1_string, rp1_state, type2_string, rp2_state, primary_resolve_attach,
-                                                secondary_resolve_attach, caller, error_code);
+        if (validateAttachmentCompatibility(dev_data, type1_string, rp1_state, type2_string, rp2_state, primary_resolve_attach,
+                                            secondary_resolve_attach, caller, error_code))
+            return true;
     }
     uint32_t primary_depthstencil_attach = VK_ATTACHMENT_UNUSED, secondary_depthstencil_attach = VK_ATTACHMENT_UNUSED;
     if (primary_desc.pDepthStencilAttachment) {
@@ -8051,87 +8055,90 @@ VKAPI_ATTR void VKAPI_CALL CmdBeginRenderPass(VkCommandBuffer commandBuffer, con
     layer_data *dev_data = GetLayerDataPtr(get_dispatch_key(commandBuffer), layer_data_map);
     unique_lock_t lock(global_lock);
     GLOBAL_CB_NODE *cb_node = GetCBNode(dev_data, commandBuffer);
-    auto render_pass_state = pRenderPassBegin ? GetRenderPassState(dev_data, pRenderPassBegin->renderPass) : nullptr;
-    auto framebuffer = pRenderPassBegin ? GetFramebufferState(dev_data, pRenderPassBegin->framebuffer) : nullptr;
-    if (cb_node) {
-        if (render_pass_state) {
-            uint32_t clear_op_size = 0;  // Make sure pClearValues is at least as large as last LOAD_OP_CLEAR
-            cb_node->activeFramebuffer = pRenderPassBegin->framebuffer;
-            for (uint32_t i = 0; i < render_pass_state->createInfo.attachmentCount; ++i) {
-                MT_FB_ATTACHMENT_INFO &fb_info = framebuffer->attachments[i];
-                auto pAttachment = &render_pass_state->createInfo.pAttachments[i];
-                if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp, pAttachment->stencilLoadOp,
-                                                         VK_ATTACHMENT_LOAD_OP_CLEAR)) {
-                    clear_op_size = static_cast<uint32_t>(i) + 1;
-                    std::function<bool()> function = [=]() {
-                        SetImageMemoryValid(dev_data, GetImageState(dev_data, fb_info.image), true);
-                        return false;
-                    };
-                    cb_node->queue_submit_functions.push_back(function);
-                } else if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp,
-                                                                pAttachment->stencilLoadOp, VK_ATTACHMENT_LOAD_OP_DONT_CARE)) {
-                    std::function<bool()> function = [=]() {
-                        SetImageMemoryValid(dev_data, GetImageState(dev_data, fb_info.image), false);
-                        return false;
-                    };
-                    cb_node->queue_submit_functions.push_back(function);
-                } else if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp,
-                                                                pAttachment->stencilLoadOp, VK_ATTACHMENT_LOAD_OP_LOAD)) {
-                    std::function<bool()> function = [=]() {
-                        return ValidateImageMemoryIsValid(dev_data, GetImageState(dev_data, fb_info.image),
-                                                          "vkCmdBeginRenderPass()");
-                    };
-                    cb_node->queue_submit_functions.push_back(function);
-                }
-                if (render_pass_state->attachment_first_read[i]) {
-                    std::function<bool()> function = [=]() {
-                        return ValidateImageMemoryIsValid(dev_data, GetImageState(dev_data, fb_info.image),
-                                                          "vkCmdBeginRenderPass()");
-                    };
-                    cb_node->queue_submit_functions.push_back(function);
-                }
-            }
-            if (clear_op_size > pRenderPassBegin->clearValueCount) {
-                skip |= log_msg(
-                    dev_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_RENDER_PASS_EXT,
-                    HandleToUint64(render_pass_state->renderPass), __LINE__, VALIDATION_ERROR_1200070c, "DS",
-                    "In vkCmdBeginRenderPass() the VkRenderPassBeginInfo struct has a clearValueCount of %u but there must "
-                    "be at least %u entries in pClearValues array to account for the highest index attachment in renderPass "
-                    "0x%" PRIx64
-                    " that uses VK_ATTACHMENT_LOAD_OP_CLEAR is %u. Note that the pClearValues array "
-                    "is indexed by attachment number so even if some pClearValues entries between 0 and %u correspond to "
-                    "attachments that aren't cleared they will be ignored. %s",
-                    pRenderPassBegin->clearValueCount, clear_op_size, HandleToUint64(render_pass_state->renderPass), clear_op_size,
-                    clear_op_size - 1, validation_error_map[VALIDATION_ERROR_1200070c]);
-            }
-            skip |= VerifyRenderAreaBounds(dev_data, pRenderPassBegin);
-            skip |= VerifyFramebufferAndRenderPassLayouts(dev_data, cb_node, pRenderPassBegin,
-                                                          GetFramebufferState(dev_data, pRenderPassBegin->framebuffer));
-            if (framebuffer->rp_state->renderPass != render_pass_state->renderPass) {
-                skip |= validateRenderPassCompatibility(dev_data, "render pass", render_pass_state, "framebuffer",
-                                                        framebuffer->rp_state.get(), "vkCmdBeginRenderPass()",
-                                                        VALIDATION_ERROR_12000710);
-            }
-            skip |= insideRenderPass(dev_data, cb_node, "vkCmdBeginRenderPass()", VALIDATION_ERROR_17a00017);
-            skip |= ValidateDependencies(dev_data, framebuffer, render_pass_state);
-            skip |= validatePrimaryCommandBuffer(dev_data, cb_node, "vkCmdBeginRenderPass()", VALIDATION_ERROR_17a00019);
-            skip |= ValidateCmdQueueFlags(dev_data, cb_node, "vkCmdBeginRenderPass()", VK_QUEUE_GRAPHICS_BIT,
-                                          VALIDATION_ERROR_17a02415);
-            skip |= ValidateCmd(dev_data, cb_node, CMD_BEGINRENDERPASS, "vkCmdBeginRenderPass()");
-            cb_node->activeRenderPass = render_pass_state;
-            // This is a shallow copy as that is all that is needed for now
-            cb_node->activeRenderPassBeginInfo = *pRenderPassBegin;
-            cb_node->activeSubpass = 0;
-            cb_node->activeSubpassContents = contents;
-            cb_node->framebuffers.insert(pRenderPassBegin->framebuffer);
-            // Connect this framebuffer and its children to this cmdBuffer
-            AddFramebufferBinding(dev_data, cb_node, framebuffer);
-            // transition attachments to the correct layouts for beginning of renderPass and first subpass
-            TransitionBeginRenderPassLayouts(dev_data, cb_node, render_pass_state, framebuffer);
-        }
-    }
-    lock.unlock();
+    assert(cb_node);
+    assert(pRenderPassBegin);
+    auto render_pass_state = GetRenderPassState(dev_data, pRenderPassBegin->renderPass);
+    auto framebuffer = GetFramebufferState(dev_data, pRenderPassBegin->framebuffer);
+    assert(render_pass_state);
+    assert(framebuffer);
+
+    uint32_t clear_op_size = 0;  // Make sure pClearValues is at least as large as last LOAD_OP_CLEAR
+    for (uint32_t i = 0; i < render_pass_state->createInfo.attachmentCount; ++i) {
+        auto pAttachment = &render_pass_state->createInfo.pAttachments[i];
+        if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp, pAttachment->stencilLoadOp,
+                                                 VK_ATTACHMENT_LOAD_OP_CLEAR)) {
+            clear_op_size = static_cast<uint32_t>(i) + 1;
+        }
+    }
+    if (clear_op_size > pRenderPassBegin->clearValueCount) {
+        skip |= log_msg(dev_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_RENDER_PASS_EXT,
+                        HandleToUint64(render_pass_state->renderPass), __LINE__, VALIDATION_ERROR_1200070c, "DS",
+                        "In vkCmdBeginRenderPass() the VkRenderPassBeginInfo struct has a clearValueCount of %u but there must "
+                        "be at least %u entries in pClearValues array to account for the highest index attachment in renderPass "
+                        "0x%" PRIx64
+                        " that uses VK_ATTACHMENT_LOAD_OP_CLEAR is %u. Note that the pClearValues array "
+                        "is indexed by attachment number so even if some pClearValues entries between 0 and %u correspond to "
+                        "attachments that aren't cleared they will be ignored. %s",
+                        pRenderPassBegin->clearValueCount, clear_op_size, HandleToUint64(render_pass_state->renderPass),
+                        clear_op_size, clear_op_size - 1, validation_error_map[VALIDATION_ERROR_1200070c]);
+    }
+    skip |= VerifyRenderAreaBounds(dev_data, pRenderPassBegin);
+    skip |= VerifyFramebufferAndRenderPassLayouts(dev_data, cb_node, pRenderPassBegin,
+                                                  GetFramebufferState(dev_data, pRenderPassBegin->framebuffer));
+    if (framebuffer->rp_state->renderPass != render_pass_state->renderPass) {
+        skip |= validateRenderPassCompatibility(dev_data, "render pass", render_pass_state, "framebuffer",
+                                                framebuffer->rp_state.get(), "vkCmdBeginRenderPass()", VALIDATION_ERROR_12000710);
+    }
+    skip |= insideRenderPass(dev_data, cb_node, "vkCmdBeginRenderPass()", VALIDATION_ERROR_17a00017);
+    skip |= ValidateDependencies(dev_data, framebuffer, render_pass_state);
+    skip |= validatePrimaryCommandBuffer(dev_data, cb_node, "vkCmdBeginRenderPass()", VALIDATION_ERROR_17a00019);
+    skip |= ValidateCmdQueueFlags(dev_data, cb_node, "vkCmdBeginRenderPass()", VK_QUEUE_GRAPHICS_BIT, VALIDATION_ERROR_17a02415);
+    skip |= ValidateCmd(dev_data, cb_node, CMD_BEGINRENDERPASS, "vkCmdBeginRenderPass()");
     if (!skip) {
+        // Perform state updates prior to call down chain
+        cb_node->activeFramebuffer = pRenderPassBegin->framebuffer;
+        for (uint32_t i = 0; i < render_pass_state->createInfo.attachmentCount; ++i) {
+            MT_FB_ATTACHMENT_INFO &fb_info = framebuffer->attachments[i];
+            auto pAttachment = &render_pass_state->createInfo.pAttachments[i];
+            if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp, pAttachment->stencilLoadOp,
+                                                     VK_ATTACHMENT_LOAD_OP_CLEAR)) {
+                std::function<bool()> function = [=]() {
+                    SetImageMemoryValid(dev_data, GetImageState(dev_data, fb_info.image), true);
+                    return false;
+                };
+                cb_node->queue_submit_functions.push_back(function);
+            } else if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp, pAttachment->stencilLoadOp,
+                                                            VK_ATTACHMENT_LOAD_OP_DONT_CARE)) {
+                std::function<bool()> function = [=]() {
+                    SetImageMemoryValid(dev_data, GetImageState(dev_data, fb_info.image), false);
+                    return false;
+                };
+                cb_node->queue_submit_functions.push_back(function);
+            } else if (FormatSpecificLoadAndStoreOpSettings(pAttachment->format, pAttachment->loadOp, pAttachment->stencilLoadOp,
+                                                            VK_ATTACHMENT_LOAD_OP_LOAD)) {
+                std::function<bool()> function = [=]() {
+                    return ValidateImageMemoryIsValid(dev_data, GetImageState(dev_data, fb_info.image), "vkCmdBeginRenderPass()");
+                };
+                cb_node->queue_submit_functions.push_back(function);
+            }
+            if (render_pass_state->attachment_first_read[i]) {
+                std::function<bool()> function = [=]() {
+                    return ValidateImageMemoryIsValid(dev_data, GetImageState(dev_data, fb_info.image), "vkCmdBeginRenderPass()");
+                };
+                cb_node->queue_submit_functions.push_back(function);
+            }
+        }
+        cb_node->activeRenderPass = render_pass_state;
+        // This is a shallow copy as that is all that is needed for now
+        cb_node->activeRenderPassBeginInfo = *pRenderPassBegin;
+        cb_node->activeSubpass = 0;
+        cb_node->activeSubpassContents = contents;
+        cb_node->framebuffers.insert(pRenderPassBegin->framebuffer);
+        // Connect this framebuffer and its children to this cmdBuffer
+        AddFramebufferBinding(dev_data, cb_node, framebuffer);
+        // transition attachments to the correct layouts for beginning of renderPass and first subpass
+        TransitionBeginRenderPassLayouts(dev_data, cb_node, render_pass_state, framebuffer);
+        lock.unlock();
         dev_data->dispatch_table.CmdBeginRenderPass(commandBuffer, pRenderPassBegin, contents);
     }
 }