From e96b1a2c0c46f575454603631e85daf78081764a Mon Sep 17 00:00:00 2001 From: Hendrik Brucker Date: Sat, 13 Aug 2022 01:02:32 +0200 Subject: Implement MSAA for 2D [Vulkan only] --- drivers/vulkan/rendering_device_vulkan.cpp | 39 +++++++++++++++++++++++++----- drivers/vulkan/rendering_device_vulkan.h | 4 +++ 2 files changed, 37 insertions(+), 6 deletions(-) (limited to 'drivers/vulkan') diff --git a/drivers/vulkan/rendering_device_vulkan.cpp b/drivers/vulkan/rendering_device_vulkan.cpp index bcb6092d87..a34a3194ab 100644 --- a/drivers/vulkan/rendering_device_vulkan.cpp +++ b/drivers/vulkan/rendering_device_vulkan.cpp @@ -1733,7 +1733,7 @@ RID RenderingDeviceVulkan::texture_create(const TextureFormat &p_format, const T ERR_FAIL_INDEX_V(p_format.samples, TEXTURE_SAMPLES_MAX, RID()); - image_create_info.samples = rasterization_sample_count[p_format.samples]; + image_create_info.samples = _ensure_supported_sample_count(p_format.samples); image_create_info.tiling = (p_format.usage_bits & TEXTURE_USAGE_CPU_READ_BIT) ? VK_IMAGE_TILING_LINEAR : VK_IMAGE_TILING_OPTIMAL; // Usage. @@ -1884,6 +1884,7 @@ RID RenderingDeviceVulkan::texture_create(const TextureFormat &p_format, const T texture.mipmaps = image_create_info.mipLevels; texture.base_mipmap = 0; texture.base_layer = 0; + texture.is_resolve_buffer = p_format.is_resolve_buffer; texture.usage_flags = p_format.usage_bits; texture.samples = p_format.samples; texture.allowed_shared_formats = p_format.shareable_formats; @@ -3425,7 +3426,7 @@ VkRenderPass RenderingDeviceVulkan::_render_pass_create(const Vector &p_texture_attac } else if (texture && texture->usage_flags & TEXTURE_USAGE_VRS_ATTACHMENT_BIT) { pass.vrs_attachment = i; } else { - pass.color_attachments.push_back(texture ? i : FramebufferPass::ATTACHMENT_UNUSED); + if (texture && texture->is_resolve_buffer) { + pass.resolve_attachments.push_back(i); + } else { + pass.color_attachments.push_back(texture ? i : FramebufferPass::ATTACHMENT_UNUSED); + } } } @@ -6567,7 +6573,7 @@ RID RenderingDeviceVulkan::render_pipeline_create(RID p_shader, FramebufferForma multisample_state_create_info.pNext = nullptr; multisample_state_create_info.flags = 0; - multisample_state_create_info.rasterizationSamples = rasterization_sample_count[p_multisample_state.sample_count]; + multisample_state_create_info.rasterizationSamples = _ensure_supported_sample_count(p_multisample_state.sample_count); multisample_state_create_info.sampleShadingEnable = p_multisample_state.enable_sample_shading; multisample_state_create_info.minSampleShading = p_multisample_state.min_sample_shading; Vector sample_mask; @@ -7353,7 +7359,9 @@ RenderingDevice::DrawListID RenderingDeviceVulkan::draw_list_begin(RID p_framebu // If it is the first we're likely populating our VRS texture. // Bit dirty but... if (!texture || (!(texture->usage_flags & TEXTURE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT) && !(i != 0 && texture->usage_flags & TEXTURE_USAGE_VRS_ATTACHMENT_BIT))) { - color_count++; + if (!texture || !texture->is_resolve_buffer) { + color_count++; + } } } ERR_FAIL_COND_V_MSG(p_clear_color_values.size() != color_count, INVALID_ID, "Clear color values supplied (" + itos(p_clear_color_values.size()) + ") differ from the amount required for framebuffer color attachments (" + itos(color_count) + ")."); @@ -8989,6 +8997,25 @@ void RenderingDeviceVulkan::_begin_frame() { frames[frame].index = Engine::get_singleton()->get_frames_drawn(); } +VkSampleCountFlagBits RenderingDeviceVulkan::_ensure_supported_sample_count(TextureSamples p_requested_sample_count) const { + VkSampleCountFlags sample_count_flags = limits.framebufferColorSampleCounts & limits.framebufferDepthSampleCounts; + + if (sample_count_flags & rasterization_sample_count[p_requested_sample_count]) { + // The requested sample count is supported. + return rasterization_sample_count[p_requested_sample_count]; + } else { + // Find the closest lower supported sample count. + VkSampleCountFlagBits sample_count = rasterization_sample_count[p_requested_sample_count]; + while (sample_count > VK_SAMPLE_COUNT_1_BIT) { + if (sample_count_flags & rasterization_sample_count[sample_count]) { + return sample_count; + } + sample_count = (VkSampleCountFlagBits)(sample_count >> 1); + } + } + return VK_SAMPLE_COUNT_1_BIT; +} + void RenderingDeviceVulkan::swap_buffers() { ERR_FAIL_COND_MSG(local_device.is_valid(), "Local devices can't swap buffers."); _THREAD_SAFE_METHOD_ diff --git a/drivers/vulkan/rendering_device_vulkan.h b/drivers/vulkan/rendering_device_vulkan.h index 6572de7c52..b828343286 100644 --- a/drivers/vulkan/rendering_device_vulkan.h +++ b/drivers/vulkan/rendering_device_vulkan.h @@ -150,6 +150,8 @@ class RenderingDeviceVulkan : public RenderingDevice { bool used_in_raster = false; bool used_in_compute = false; + bool is_resolve_buffer = false; + uint32_t read_aspect_mask = 0; uint32_t barrier_aspect_mask = 0; bool bound = false; // Bound to framebffer. @@ -1042,6 +1044,8 @@ class RenderingDeviceVulkan : public RenderingDevice { HashMap resource_names; #endif + VkSampleCountFlagBits _ensure_supported_sample_count(TextureSamples p_requested_sample_count) const; + public: virtual RID texture_create(const TextureFormat &p_format, const TextureView &p_view, const Vector> &p_data = Vector>()); virtual RID texture_create_shared(const TextureView &p_view, RID p_with_texture); -- cgit v1.2.3