diff --git a/include/vkcv/PipelineConfig.hpp b/include/vkcv/PipelineConfig.hpp
index 7dc6f2200db7efc1abdddab81145daec27540c49..729330fcaf7eeac2acfdd1816b86ac29c7d9e30b 100644
--- a/include/vkcv/PipelineConfig.hpp
+++ b/include/vkcv/PipelineConfig.hpp
@@ -7,9 +7,9 @@
#include <vector>
#include <cstdint>
-#include "vkcv/Handles.hpp"
+#include "Handles.hpp"
#include "ShaderProgram.hpp"
-#include <vkcv/VertexLayout.hpp>
+#include "VertexLayout.hpp"
namespace vkcv {
@@ -21,24 +21,25 @@ namespace vkcv {
* @param shaderProgram shaders of the pipeline
* @param height height of the application window
* @param width width of the application window
- * @param passHandle handle for Render Pass
+ * @param passHandle handle for render pass
+ * @param vertexLayout layout of vertex buffer, comprised of its bindings and the bindings' attachments
*/
PipelineConfig(
const ShaderProgram& shaderProgram,
uint32_t width,
uint32_t height,
const PassHandle &passHandle,
- const std::vector<VertexAttribute> &vertexAttributes,
+ const VertexLayout &vertexLayouts,
const std::vector<vk::DescriptorSetLayout> &descriptorLayouts,
bool useDynamicViewport);
- ShaderProgram m_ShaderProgram;
- uint32_t m_Height;
- uint32_t m_Width;
- PassHandle m_PassHandle;
- std::vector<VertexAttribute> m_VertexAttributes;
- std::vector<vk::DescriptorSetLayout> m_DescriptorLayouts;
- bool m_UseDynamicViewport;
+ ShaderProgram m_ShaderProgram;
+ uint32_t m_Height;
+ uint32_t m_Width;
+ PassHandle m_PassHandle;
+ VertexLayout m_VertexLayout;
+ std::vector<vk::DescriptorSetLayout> m_DescriptorLayouts;
+ bool m_UseDynamicViewport;
};
diff --git a/include/vkcv/ShaderProgram.hpp b/include/vkcv/ShaderProgram.hpp
index ce28cccf07e22dda21fd14d0bddd0ba6e9842328..28f746d78477062eae9b0ad88f8c5de71e11efd0 100644
--- a/include/vkcv/ShaderProgram.hpp
+++ b/include/vkcv/ShaderProgram.hpp
@@ -12,9 +12,9 @@
#include <filesystem>
#include <vulkan/vulkan.hpp>
#include <spirv_cross.hpp>
-#include "vkcv/VertexLayout.hpp"
-#include "vkcv/ShaderStage.hpp"
-#include "vkcv/DescriptorConfig.hpp"
+#include "VertexLayout.hpp"
+#include "ShaderStage.hpp"
+#include "DescriptorConfig.hpp"
namespace vkcv {
@@ -48,17 +48,23 @@ namespace vkcv {
bool existsShader(ShaderStage shaderStage) const;
- void reflectShader(ShaderStage shaderStage);
-
- const VertexLayout &getVertexLayout() const;
+ const std::vector<VertexAttachment> &getVertexAttachments() const;
size_t getPushConstantSize() const;
- const std::vector<std::vector<DescriptorBinding>> getReflectedDescriptors() const;
+ const std::vector<std::vector<DescriptorBinding>> &getReflectedDescriptors() const;
private:
+ /**
+ * Called after successfully adding a shader to the program.
+ * Fills vertex input attachments and descriptor sets (if present).
+ * @param shaderStage the stage to reflect data from
+ */
+ void reflectShader(ShaderStage shaderStage);
+
std::unordered_map<ShaderStage, Shader> m_Shaders;
- VertexLayout m_VertexLayout;
+ // contains all vertex input attachments used in the vertex buffer
+ std::vector<VertexAttachment> m_VertexAttachments;
std::vector<std::vector<DescriptorBinding>> m_DescriptorSets;
size_t m_pushConstantSize = 0;
};
diff --git a/include/vkcv/VertexLayout.hpp b/include/vkcv/VertexLayout.hpp
index aae43910a09f221874813733b2ef72d36467a750..9f609b48472386cd7628ff40b5fa4b90bc91649a 100644
--- a/include/vkcv/VertexLayout.hpp
+++ b/include/vkcv/VertexLayout.hpp
@@ -1,30 +1,11 @@
#pragma once
-#include <unordered_map>
#include <vector>
#include <iostream>
#include <string>
namespace vkcv{
-
- /* With these enums, 0 is reserved to signal uninitialized or invalid data. */
- enum class PrimitiveType : uint32_t {
- UNDEFINED = 0,
- POSITION = 1,
- NORMAL = 2,
- TEXCOORD_0 = 3
- };
- /* This struct describes one vertex attribute of a vertex buffer. */
- typedef struct {
- PrimitiveType type; // POSITION, NORMAL, ...
- uint32_t offset; // offset in bytes
- uint32_t length; // length of ... in bytes
- uint32_t stride; // stride in bytes
- uint16_t componentType; // eg. 5126 for float
- uint8_t componentCount; // eg. 3 for vec3
- } VertexAttribute;
-
- enum class VertexFormat{
+ enum class VertexAttachmentFormat{
FLOAT,
FLOAT2,
FLOAT3,
@@ -35,23 +16,51 @@ namespace vkcv{
INT4
};
- uint32_t getFormatSize(VertexFormat format);
+ uint32_t getFormatSize(VertexAttachmentFormat format);
- struct VertexInputAttachment{
- VertexInputAttachment() = delete;
- VertexInputAttachment(uint32_t location, uint32_t binding, std::string name, VertexFormat format, uint32_t offset) noexcept;
+ struct VertexAttachment{
+ friend struct VertexBinding;
+ /**
+ * Describes an individual vertex input attribute/attachment.
+ * @param inputLocation its location in the vertex shader.
+ * @param name the name referred to in the shader.
+ * @param format the format (and therefore, the size) this attachment is in.
+ * The offset is calculated when a collection of attachments forms a binding, hence the friend declaration.
+ */
+ VertexAttachment(uint32_t inputLocation, const std::string &name, VertexAttachmentFormat format) noexcept;
+ VertexAttachment() = delete;
- uint32_t location;
- uint32_t binding;
- std::string name;
- VertexFormat format;
- uint32_t offset;
+ uint32_t inputLocation;
+ std::string name;
+ VertexAttachmentFormat format;
+ uint32_t offset;
+ };
+
+ struct VertexBinding{
+ /**
+ * Describes all vertex input attachments _one_ buffer contains to create a vertex buffer binding.
+ * NOTE: multiple vertex layouts may contain various (mutually exclusive) vertex input attachments
+ * to form one complete vertex buffer binding!
+ * @param bindingLocation its entry in the buffers that make up the whole vertex buffer.
+ * @param attachments the vertex input attachments this specific buffer layout contains.
+ */
+ VertexBinding(uint32_t bindingLocation, const std::vector<VertexAttachment> &attachments) noexcept;
+ VertexBinding() = delete;
+
+ uint32_t bindingLocation;
+ uint32_t stride;
+ std::vector<VertexAttachment> vertexAttachments;
};
struct VertexLayout{
+ /**
+ * Describes the complete layout of one vertex, e.g. all of the vertex input attachments used,
+ * and all of the buffer bindings that refer to the attachments (for when multiple buffers are used).
+ * @param bindings bindings the complete vertex buffer is comprised of.
+ */
VertexLayout() noexcept;
- VertexLayout(const std::vector<VertexInputAttachment> &inputs) noexcept;
- std::unordered_map<uint32_t, VertexInputAttachment> attachmentMap;
- uint32_t stride;
+ VertexLayout(const std::vector<VertexBinding> &bindings) noexcept;
+
+ std::vector<VertexBinding> vertexBindings;
};
}
\ No newline at end of file
diff --git a/modules/asset_loader/include/vkcv/asset/asset_loader.hpp b/modules/asset_loader/include/vkcv/asset/asset_loader.hpp
index 24687e846ff9eae3275de357331a825f0b4ed2c3..d687bbf60a03a59eee8c29f9b676f10cc7f2f2b3 100644
--- a/modules/asset_loader/include/vkcv/asset/asset_loader.hpp
+++ b/modules/asset_loader/include/vkcv/asset/asset_loader.hpp
@@ -8,7 +8,6 @@
#include <string>
#include <vector>
#include <cstdint>
-#include <vkcv/VertexLayout.hpp>
/* These macros define limits of the following structs. Implementations can
* test against these limits when performing sanity checks. The main constraint
@@ -53,6 +52,23 @@ enum PrimitiveMode {
/* The indices in the index buffer can be of different bit width. */
enum IndexType { UINT32=0, UINT16=1, UINT8=2 };
+/* With these enums, 0 is reserved to signal uninitialized or invalid data. */
+enum class PrimitiveType : uint32_t {
+ UNDEFINED = 0,
+ POSITION = 1,
+ NORMAL = 2,
+ TEXCOORD_0 = 3
+};
+/* This struct describes one vertex attribute of a vertex buffer. */
+typedef struct {
+ PrimitiveType type; // POSITION, NORMAL, ...
+ uint32_t offset; // offset in bytes
+ uint32_t length; // length of ... in bytes
+ uint32_t stride; // stride in bytes
+ uint16_t componentType; // eg. 5126 for float
+ uint8_t componentCount; // eg. 3 for vec3
+} VertexAttribute;
+
typedef struct {
// TODO not yet needed for the first (unlit) triangle
} Material;
@@ -71,7 +87,7 @@ typedef struct {
} indexBuffer;
struct {
std::vector<uint8_t> data; // binary data of the vertex buffer
- std::vector<VertexAttribute> attributes;
+ std::vector<VertexAttribute> attributes; // description of one
} vertexBuffer;
struct { float x, y, z; } min; // bounding box lower left
struct { float x, y, z; } max; // bounding box upper right
diff --git a/projects/cmd_sync_test/src/main.cpp b/projects/cmd_sync_test/src/main.cpp
index 2494793f3b4aff3dfa412ff9bbe27e4550ca8fe0..426cc3a56033cea1e468c5612f4e32981d18f8c1 100644
--- a/projects/cmd_sync_test/src/main.cpp
+++ b/projects/cmd_sync_test/src/main.cpp
@@ -65,7 +65,7 @@ int main(int argc, const char** argv) {
auto& attributes = mesh.vertexGroups[0].vertexBuffer.attributes;
- std::sort(attributes.begin(), attributes.end(), [](const vkcv::VertexAttribute& x, const vkcv::VertexAttribute& y) {
+ std::sort(attributes.begin(), attributes.end(), [](const vkcv::asset::VertexAttribute& x, const vkcv::asset::VertexAttribute& y) {
return static_cast<uint32_t>(x.type) < static_cast<uint32_t>(y.type);
});
@@ -89,34 +89,41 @@ int main(int argc, const char** argv) {
vk::Format::eD32Sfloat
);
- vkcv::PassConfig trianglePassDefinition({ present_color_attachment, depth_attachment });
- vkcv::PassHandle trianglePass = core.createPass(trianglePassDefinition);
+ vkcv::PassConfig firstMeshPassDefinition({ present_color_attachment, depth_attachment });
+ vkcv::PassHandle firstMeshPass = core.createPass(firstMeshPassDefinition);
- if (!trianglePass) {
+ if (!firstMeshPass) {
std::cout << "Error. Could not create renderpass. Exiting." << std::endl;
return EXIT_FAILURE;
}
- vkcv::ShaderProgram triangleShaderProgram{};
- triangleShaderProgram.addShader(vkcv::ShaderStage::VERTEX, std::filesystem::path("resources/shaders/vert.spv"));
- triangleShaderProgram.addShader(vkcv::ShaderStage::FRAGMENT, std::filesystem::path("resources/shaders/frag.spv"));
- triangleShaderProgram.reflectShader(vkcv::ShaderStage::VERTEX);
- triangleShaderProgram.reflectShader(vkcv::ShaderStage::FRAGMENT);
+ vkcv::ShaderProgram firstMeshProgram{};
+ firstMeshProgram.addShader(vkcv::ShaderStage::VERTEX, std::filesystem::path("resources/shaders/vert.spv"));
+ firstMeshProgram.addShader(vkcv::ShaderStage::FRAGMENT, std::filesystem::path("resources/shaders/frag.spv"));
- std::vector<vkcv::DescriptorBinding> descriptorBindings = { triangleShaderProgram.getReflectedDescriptors()[0] };
+ const std::vector<vkcv::VertexAttachment> vertexAttachments = firstMeshProgram.getVertexAttachments();
+
+ std::vector<vkcv::VertexBinding> bindings;
+ for (size_t i = 0; i < vertexAttachments.size(); i++) {
+ bindings.push_back(vkcv::VertexBinding(i, { vertexAttachments[i] }));
+ }
+
+ const vkcv::VertexLayout firstMeshLayout (bindings);
+
+ std::vector<vkcv::DescriptorBinding> descriptorBindings = { firstMeshProgram.getReflectedDescriptors()[0] };
vkcv::DescriptorSetHandle descriptorSet = core.createDescriptorSet(descriptorBindings);
- const vkcv::PipelineConfig trianglePipelineDefinition(
- triangleShaderProgram,
+ const vkcv::PipelineConfig firstMeshPipelineConfig(
+ firstMeshProgram,
windowWidth,
windowHeight,
- trianglePass,
- attributes,
+ firstMeshPass,
+ {firstMeshLayout},
{ core.getDescriptorSet(descriptorSet).layout },
true);
- vkcv::PipelineHandle trianglePipeline = core.createGraphicsPipeline(trianglePipelineDefinition);
+ vkcv::PipelineHandle firstMeshPipeline = core.createGraphicsPipeline(firstMeshPipelineConfig);
- if (!trianglePipeline) {
+ if (!firstMeshPipeline) {
std::cout << "Error. Could not create graphics pipeline. Exiting." << std::endl;
return EXIT_FAILURE;
}
@@ -169,8 +176,6 @@ int main(int argc, const char** argv) {
vkcv::ShaderProgram shadowShader;
shadowShader.addShader(vkcv::ShaderStage::VERTEX, "resources/shaders/shadow_vert.spv");
shadowShader.addShader(vkcv::ShaderStage::FRAGMENT, "resources/shaders/shadow_frag.spv");
- shadowShader.reflectShader(vkcv::ShaderStage::VERTEX);
- shadowShader.reflectShader(vkcv::ShaderStage::FRAGMENT);
const vk::Format shadowMapFormat = vk::Format::eD16Unorm;
const std::vector<vkcv::AttachmentDescription> shadowAttachments = {
@@ -185,8 +190,8 @@ int main(int argc, const char** argv) {
shadowShader,
shadowMapResolution,
shadowMapResolution,
- shadowPass,
- attributes,
+ shadowPass,
+ {firstMeshLayout},
{},
false);
const vkcv::PipelineHandle shadowPipe = core.createGraphicsPipeline(shadowPipeConfig);
@@ -281,8 +286,8 @@ int main(int argc, const char** argv) {
core.recordDrawcallsToCmdStream(
cmdStream,
- trianglePass,
- trianglePipeline,
+ firstMeshPass,
+ firstMeshPipeline,
pushConstantData,
drawcalls,
renderTargets);
diff --git a/projects/first_mesh/src/main.cpp b/projects/first_mesh/src/main.cpp
index d585fa9606acb13795d299c1f4b47602c463a61a..d3be8c990ac581ec1b056926ce95c5ed9d5c2a31 100644
--- a/projects/first_mesh/src/main.cpp
+++ b/projects/first_mesh/src/main.cpp
@@ -74,43 +74,48 @@ int main(int argc, const char** argv) {
vk::Format::eD32Sfloat
);
- vkcv::PassConfig trianglePassDefinition({ present_color_attachment, depth_attachment });
- vkcv::PassHandle trianglePass = core.createPass(trianglePassDefinition);
+ vkcv::PassConfig firstMeshPassDefinition({ present_color_attachment, depth_attachment });
+ vkcv::PassHandle firstMeshPass = core.createPass(firstMeshPassDefinition);
- if (!trianglePass) {
+ if (!firstMeshPass) {
std::cout << "Error. Could not create renderpass. Exiting." << std::endl;
return EXIT_FAILURE;
}
- vkcv::ShaderProgram triangleShaderProgram{};
- triangleShaderProgram.addShader(vkcv::ShaderStage::VERTEX, std::filesystem::path("resources/shaders/vert.spv"));
- triangleShaderProgram.addShader(vkcv::ShaderStage::FRAGMENT, std::filesystem::path("resources/shaders/frag.spv"));
- triangleShaderProgram.reflectShader(vkcv::ShaderStage::VERTEX);
- triangleShaderProgram.reflectShader(vkcv::ShaderStage::FRAGMENT);
+ vkcv::ShaderProgram firstMeshProgram{};
+ firstMeshProgram.addShader(vkcv::ShaderStage::VERTEX, std::filesystem::path("resources/shaders/vert.spv"));
+ firstMeshProgram.addShader(vkcv::ShaderStage::FRAGMENT, std::filesystem::path("resources/shaders/frag.spv"));
auto& attributes = mesh.vertexGroups[0].vertexBuffer.attributes;
- std::sort(attributes.begin(), attributes.end(), [](const vkcv::VertexAttribute& x, const vkcv::VertexAttribute& y) {
+ std::sort(attributes.begin(), attributes.end(), [](const vkcv::asset::VertexAttribute& x, const vkcv::asset::VertexAttribute& y) {
return static_cast<uint32_t>(x.type) < static_cast<uint32_t>(y.type);
});
+ const std::vector<vkcv::VertexAttachment> vertexAttachments = firstMeshProgram.getVertexAttachments();
+ std::vector<vkcv::VertexBinding> bindings;
+ for (size_t i = 0; i < vertexAttachments.size(); i++) {
+ bindings.push_back(vkcv::VertexBinding(i, { vertexAttachments[i] }));
+ }
+
+ const vkcv::VertexLayout firstMeshLayout (bindings);
+
uint32_t setID = 0;
- std::vector<vkcv::DescriptorBinding> descriptorBindings = { triangleShaderProgram.getReflectedDescriptors()[setID] };
+ std::vector<vkcv::DescriptorBinding> descriptorBindings = { firstMeshProgram.getReflectedDescriptors()[setID] };
vkcv::DescriptorSetHandle descriptorSet = core.createDescriptorSet(descriptorBindings);
- const vkcv::PipelineConfig trianglePipelineDefinition(
- triangleShaderProgram,
+ const vkcv::PipelineConfig firstMeshPipelineConfig(
+ firstMeshProgram,
UINT32_MAX,
UINT32_MAX,
- trianglePass,
- mesh.vertexGroups[0].vertexBuffer.attributes,
+ firstMeshPass,
+ {firstMeshLayout},
{ core.getDescriptorSet(descriptorSet).layout },
true);
- vkcv::PipelineHandle trianglePipeline = core.createGraphicsPipeline(trianglePipelineDefinition);
-
-
- if (!trianglePipeline) {
+ vkcv::PipelineHandle firstMeshPipeline = core.createGraphicsPipeline(firstMeshPipelineConfig);
+
+ if (!firstMeshPipeline) {
std::cout << "Error. Could not create graphics pipeline. Exiting." << std::endl;
return EXIT_FAILURE;
}
@@ -126,10 +131,9 @@ int main(int argc, const char** argv) {
);
const std::vector<vkcv::VertexBufferBinding> vertexBufferBindings = {
- vkcv::VertexBufferBinding( mesh.vertexGroups[0].vertexBuffer.attributes[0].offset, vertexBuffer.getVulkanHandle() ),
- vkcv::VertexBufferBinding( mesh.vertexGroups[0].vertexBuffer.attributes[1].offset, vertexBuffer.getVulkanHandle() ),
- vkcv::VertexBufferBinding( mesh.vertexGroups[0].vertexBuffer.attributes[2].offset, vertexBuffer.getVulkanHandle() )
- };
+ vkcv::VertexBufferBinding(static_cast<vk::DeviceSize>(attributes[0].offset), vertexBuffer.getVulkanHandle()),
+ vkcv::VertexBufferBinding(static_cast<vk::DeviceSize>(attributes[1].offset), vertexBuffer.getVulkanHandle()),
+ vkcv::VertexBufferBinding(static_cast<vk::DeviceSize>(attributes[2].offset), vertexBuffer.getVulkanHandle()) };
vkcv::DescriptorWrites setWrites;
setWrites.sampledImageWrites = { vkcv::SampledImageDescriptorWrite(0, texture.getHandle()) };
@@ -177,8 +181,8 @@ int main(int argc, const char** argv) {
core.recordDrawcallsToCmdStream(
cmdStream,
- trianglePass,
- trianglePipeline,
+ firstMeshPass,
+ firstMeshPipeline,
pushConstantData,
{ drawcall },
renderTargets);
diff --git a/projects/first_triangle/src/main.cpp b/projects/first_triangle/src/main.cpp
index ca10434bb9e486649411bcaac54c432744a914bb..b6b75bca82a8479f3d6b09577337503424ce7a83 100644
--- a/projects/first_triangle/src/main.cpp
+++ b/projects/first_triangle/src/main.cpp
@@ -96,8 +96,6 @@ int main(int argc, const char** argv) {
vkcv::ShaderProgram triangleShaderProgram{};
triangleShaderProgram.addShader(vkcv::ShaderStage::VERTEX, std::filesystem::path("shaders/vert.spv"));
triangleShaderProgram.addShader(vkcv::ShaderStage::FRAGMENT, std::filesystem::path("shaders/frag.spv"));
- triangleShaderProgram.reflectShader(vkcv::ShaderStage::VERTEX);
- triangleShaderProgram.reflectShader(vkcv::ShaderStage::FRAGMENT);
const vkcv::PipelineConfig trianglePipelineDefinition(
triangleShaderProgram,
@@ -119,7 +117,6 @@ int main(int argc, const char** argv) {
// Compute Pipeline
vkcv::ShaderProgram computeShaderProgram{};
computeShaderProgram.addShader(vkcv::ShaderStage::COMPUTE, std::filesystem::path("shaders/comp.spv"));
- computeShaderProgram.reflectShader(vkcv::ShaderStage::COMPUTE);
// take care, assuming shader has exactly one descriptor set
vkcv::DescriptorSetHandle computeDescriptorSet = core.createDescriptorSet(computeShaderProgram.getReflectedDescriptors()[0]);
diff --git a/src/vkcv/PipelineConfig.cpp b/src/vkcv/PipelineConfig.cpp
index ad8437ca2a6c07862f66485c74c89ccba0d69ebe..3bd2a68cb86f167afecc551dbd664dee8a63eb08 100644
--- a/src/vkcv/PipelineConfig.cpp
+++ b/src/vkcv/PipelineConfig.cpp
@@ -13,7 +13,7 @@ namespace vkcv {
uint32_t width,
uint32_t height,
const PassHandle &passHandle,
- const std::vector<VertexAttribute> &vertexAttributes,
+ const VertexLayout &vertexLayout,
const std::vector<vk::DescriptorSetLayout> &descriptorLayouts,
bool useDynamicViewport)
:
@@ -21,7 +21,7 @@ namespace vkcv {
m_Height(height),
m_Width(width),
m_PassHandle(passHandle),
- m_VertexAttributes(vertexAttributes),
+ m_VertexLayout(vertexLayout),
m_DescriptorLayouts(descriptorLayouts),
m_UseDynamicViewport(useDynamicViewport)
{}
diff --git a/src/vkcv/PipelineManager.cpp b/src/vkcv/PipelineManager.cpp
index 24ac7970d739d46ab7cecca7bb783bb0037c43cb..81b7525b160374915b1918c30870b05e619a30a4 100644
--- a/src/vkcv/PipelineManager.cpp
+++ b/src/vkcv/PipelineManager.cpp
@@ -19,23 +19,23 @@ namespace vkcv
}
// currently assuming default 32 bit formats, no lower precision or normalized variants supported
- vk::Format vertexFormatToVulkanFormat(const VertexFormat format) {
+ vk::Format vertexFormatToVulkanFormat(const VertexAttachmentFormat format) {
switch (format) {
- case VertexFormat::FLOAT:
+ case VertexAttachmentFormat::FLOAT:
return vk::Format::eR32Sfloat;
- case VertexFormat::FLOAT2:
+ case VertexAttachmentFormat::FLOAT2:
return vk::Format::eR32G32Sfloat;
- case VertexFormat::FLOAT3:
+ case VertexAttachmentFormat::FLOAT3:
return vk::Format::eR32G32B32Sfloat;
- case VertexFormat::FLOAT4:
+ case VertexAttachmentFormat::FLOAT4:
return vk::Format::eR32G32B32A32Sfloat;
- case VertexFormat::INT:
+ case VertexAttachmentFormat::INT:
return vk::Format::eR32Sint;
- case VertexFormat::INT2:
+ case VertexAttachmentFormat::INT2:
return vk::Format::eR32G32Sint;
- case VertexFormat::INT3:
+ case VertexAttachmentFormat::INT3:
return vk::Format::eR32G32B32Sint;
- case VertexFormat::INT4:
+ case VertexAttachmentFormat::INT4:
return vk::Format::eR32G32B32A32Sint;
default:
vkcv_log(LogLevel::WARNING, "Unknown vertex format");
@@ -94,24 +94,24 @@ namespace vkcv
std::vector<vk::VertexInputAttributeDescription> vertexAttributeDescriptions;
std::vector<vk::VertexInputBindingDescription> vertexBindingDescriptions;
- VertexLayout layout = config.m_ShaderProgram.getVertexLayout();
- std::unordered_map<uint32_t, VertexInputAttachment> attachments = layout.attachmentMap;
+ const VertexLayout &layout = config.m_VertexLayout;
- for (int i = 0; i < attachments.size(); i++) {
- VertexInputAttachment &attachment = attachments.at(i);
-
- uint32_t location = attachment.location;
- uint32_t binding = i;
- vk::Format vertexFormat = vertexFormatToVulkanFormat(attachment.format);
-
- //FIXME: hoping that order is the same and compatible: add explicit mapping and validation
- const VertexAttribute attribute = config.m_VertexAttributes[i];
-
- vertexAttributeDescriptions.emplace_back(location, binding, vertexFormatToVulkanFormat(attachment.format), 0);
- vertexBindingDescriptions.emplace_back(vk::VertexInputBindingDescription(
- binding,
- attribute.stride + getFormatSize(attachment.format),
- vk::VertexInputRate::eVertex));
+ // iterate over the layout's specified, mutually exclusive buffer bindings that make up a vertex buffer
+ for (const auto &vertexBinding : layout.vertexBindings)
+ {
+ vertexBindingDescriptions.emplace_back(vertexBinding.bindingLocation,
+ vertexBinding.stride,
+ vk::VertexInputRate::eVertex);
+
+ // iterate over the bindings' specified, mutually exclusive vertex input attachments that make up a vertex
+ for(const auto &vertexAttachment: vertexBinding.vertexAttachments)
+ {
+ vertexAttributeDescriptions.emplace_back(vertexAttachment.inputLocation,
+ vertexBinding.bindingLocation,
+ vertexFormatToVulkanFormat(vertexAttachment.format),
+ vertexAttachment.offset % vertexBinding.stride);
+
+ }
}
// Handover Containers to PipelineVertexInputStateCreateIngo Struct
diff --git a/src/vkcv/ShaderProgram.cpp b/src/vkcv/ShaderProgram.cpp
index a33fa7127dc6071439b5b350a440f995b1440ab7..aa945bb18e7cf04513b41510f1ea993a02e1f46d 100644
--- a/src/vkcv/ShaderProgram.cpp
+++ b/src/vkcv/ShaderProgram.cpp
@@ -28,18 +28,18 @@ namespace vkcv {
return buffer;
}
- VertexFormat convertFormat(spirv_cross::SPIRType::BaseType basetype, uint32_t vecsize){
+ VertexAttachmentFormat convertFormat(spirv_cross::SPIRType::BaseType basetype, uint32_t vecsize){
switch (basetype) {
case spirv_cross::SPIRType::Int:
switch (vecsize) {
case 1:
- return VertexFormat::INT;
+ return VertexAttachmentFormat::INT;
case 2:
- return VertexFormat::INT2;
+ return VertexAttachmentFormat::INT2;
case 3:
- return VertexFormat::INT3;
+ return VertexAttachmentFormat::INT3;
case 4:
- return VertexFormat::INT4;
+ return VertexAttachmentFormat::INT4;
default:
break;
}
@@ -47,13 +47,13 @@ namespace vkcv {
case spirv_cross::SPIRType::Float:
switch (vecsize) {
case 1:
- return VertexFormat::FLOAT;
+ return VertexAttachmentFormat::FLOAT;
case 2:
- return VertexFormat::FLOAT2;
+ return VertexAttachmentFormat::FLOAT2;
case 3:
- return VertexFormat::FLOAT3;
+ return VertexAttachmentFormat::FLOAT3;
case 4:
- return VertexFormat::FLOAT4;
+ return VertexAttachmentFormat::FLOAT4;
default:
break;
}
@@ -63,12 +63,12 @@ namespace vkcv {
}
vkcv_log(LogLevel::WARNING, "Unknown vertex format");
- return VertexFormat::FLOAT;
+ return VertexAttachmentFormat::FLOAT;
}
ShaderProgram::ShaderProgram() noexcept :
m_Shaders{},
- m_VertexLayout{},
+ m_VertexAttachments{},
m_DescriptorSets{}
{}
@@ -85,6 +85,7 @@ namespace vkcv {
} else {
Shader shader{shaderCode, shaderStage};
m_Shaders.insert(std::make_pair(shaderStage, shader));
+ reflectShader(shaderStage);
return true;
}
}
@@ -107,30 +108,31 @@ namespace vkcv {
auto shaderCodeChar = m_Shaders.at(shaderStage).shaderCode;
std::vector<uint32_t> shaderCode;
- for (uint32_t i = 0; i < shaderCodeChar.size()/4; i++) {
+ for (uint32_t i = 0; i < shaderCodeChar.size()/4; i++)
shaderCode.push_back(((uint32_t*) shaderCodeChar.data())[i]);
- }
spirv_cross::Compiler comp(move(shaderCode));
spirv_cross::ShaderResources resources = comp.get_shader_resources();
//reflect vertex input
- if (shaderStage == ShaderStage::VERTEX) {
- std::vector<VertexInputAttachment> inputVec;
- uint32_t offset = 0;
-
- for (uint32_t i = 0; i < resources.stage_inputs.size(); i++) {
- auto& u = resources.stage_inputs[i];
- const spirv_cross::SPIRType& base_type = comp.get_type(u.base_type_id);
- VertexInputAttachment input = VertexInputAttachment(comp.get_decoration(u.id, spv::DecorationLocation),
- 0,
- u.name,
- convertFormat(base_type.basetype, base_type.vecsize),
- offset);
- inputVec.push_back(input);
- offset += base_type.vecsize * base_type.width / 8;
- }
- m_VertexLayout = VertexLayout(inputVec);
+ if (shaderStage == ShaderStage::VERTEX)
+ {
+ // spirv-cross API (hopefully) returns the stage_inputs in order
+ for (uint32_t i = 0; i < resources.stage_inputs.size(); i++)
+ {
+ // spirv-cross specific objects
+ auto& stage_input = resources.stage_inputs[i];
+ const spirv_cross::SPIRType& base_type = comp.get_type(stage_input.base_type_id);
+
+ // vertex input location
+ const uint32_t attachment_loc = comp.get_decoration(stage_input.id, spv::DecorationLocation);
+ // vertex input name
+ const std::string attachment_name = stage_input.name;
+ // vertex input format (implies its size)
+ const VertexAttachmentFormat attachment_format = convertFormat(base_type.basetype, base_type.vecsize);
+
+ m_VertexAttachments.emplace_back(attachment_loc, attachment_name, attachment_format);
+ }
}
//reflect descriptor sets (uniform buffer, storage buffer, sampler, sampled image, storage image)
@@ -202,14 +204,18 @@ namespace vkcv {
}
}
- const VertexLayout& ShaderProgram::getVertexLayout() const{
- return m_VertexLayout;
+ const std::vector<VertexAttachment> &ShaderProgram::getVertexAttachments() const
+ {
+ return m_VertexAttachments;
}
- const std::vector<std::vector<DescriptorBinding>> ShaderProgram::getReflectedDescriptors() const {
+ const std::vector<std::vector<DescriptorBinding>> &ShaderProgram::getReflectedDescriptors() const
+ {
return m_DescriptorSets;
}
- size_t ShaderProgram::getPushConstantSize() const {
+
+ size_t ShaderProgram::getPushConstantSize() const
+ {
return m_pushConstantSize;
}
}
diff --git a/src/vkcv/VertexLayout.cpp b/src/vkcv/VertexLayout.cpp
index 3c39ad0d39c4b458526ceed54422d320ee6d0e0d..fa079a3264ae47b32461bda26485adb97b0be280 100644
--- a/src/vkcv/VertexLayout.cpp
+++ b/src/vkcv/VertexLayout.cpp
@@ -6,23 +6,23 @@
#include "vkcv/Logger.hpp"
namespace vkcv {
- uint32_t getFormatSize(VertexFormat format) {
+ uint32_t getFormatSize(VertexAttachmentFormat format) {
switch (format) {
- case VertexFormat::FLOAT:
+ case VertexAttachmentFormat::FLOAT:
return 4;
- case VertexFormat::FLOAT2:
+ case VertexAttachmentFormat::FLOAT2:
return 8;
- case VertexFormat::FLOAT3:
+ case VertexAttachmentFormat::FLOAT3:
return 12;
- case VertexFormat::FLOAT4:
+ case VertexAttachmentFormat::FLOAT4:
return 16;
- case VertexFormat::INT:
+ case VertexAttachmentFormat::INT:
return 4;
- case VertexFormat::INT2:
+ case VertexAttachmentFormat::INT2:
return 8;
- case VertexFormat::INT3:
+ case VertexAttachmentFormat::INT3:
return 12;
- case VertexFormat::INT4:
+ case VertexAttachmentFormat::INT4:
return 16;
default:
vkcv_log(LogLevel::WARNING, "No format given");
@@ -30,25 +30,33 @@ namespace vkcv {
}
}
- VertexInputAttachment::VertexInputAttachment(uint32_t location, uint32_t binding, std::string name, VertexFormat format, uint32_t offset) noexcept:
- location{location},
- binding{binding},
+ VertexAttachment::VertexAttachment(uint32_t inputLocation, const std::string &name, VertexAttachmentFormat format) noexcept:
+ inputLocation{inputLocation},
name{name},
format{format},
- offset{offset}
- {}
-
- VertexLayout::VertexLayout() noexcept :
- stride{0},
- attachmentMap()
+ offset{0}
{}
- VertexLayout::VertexLayout(const std::vector<VertexInputAttachment> &inputs) noexcept {
- stride = 0;
- for (const auto &input : inputs) {
- attachmentMap.insert(std::make_pair(input.location, input));
- stride += getFormatSize(input.format);
+
+ VertexBinding::VertexBinding(uint32_t bindingLocation, const std::vector<VertexAttachment> &attachments) noexcept :
+ bindingLocation{bindingLocation},
+ stride{0},
+ vertexAttachments{attachments}
+ {
+ uint32_t offset = 0;
+ for (auto &attachment : vertexAttachments)
+ {
+ offset += getFormatSize(attachment.format);
+ attachment.offset = offset;
}
+ stride = offset;
}
+ VertexLayout::VertexLayout() noexcept :
+ vertexBindings{}
+ {}
+
+ VertexLayout::VertexLayout(const std::vector<VertexBinding> &bindings) noexcept :
+ vertexBindings{bindings}
+ {}
}
\ No newline at end of file