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[Feat] (MG_Backend/DirectVulkan): refactor DrawElements to use payload as param

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This commit is contained in:
swung0x48
2026-02-17 10:42:30 +08:00
parent 13aa88b5ef
commit 49b0743422
3 changed files with 115 additions and 13 deletions
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MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp
+73 -10
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@@ -568,7 +568,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
vkCmdDraw(commandBuffer, static_cast<Uint32>(payload.count), 1, static_cast<Uint32>(payload.first), 0);
}
void VulkanRenderer::DrawElements(GLenum type, GLsizei count, const void* indexData, SizeT indexDataSizeBytes) {
void VulkanRenderer::DrawElements(const DrawElementPayload& payload) {
if (payload.drawArray.mode != GL_TRIANGLES) {
MGLOG_W("DrawElements skipped: primitive mode %u is not supported yet", payload.drawArray.mode);
return;
}
EnsureFrameRecordingStarted();
auto& frame = m_frameContext.GetCurrent();
if (!frame.isCommandRecording || !m_isMainRenderPassActive) {
@@ -577,7 +582,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
}
VkIndexType vkIndexType = VK_INDEX_TYPE_MAX_ENUM;
switch (type) {
switch (payload.indexType) {
case GL_UNSIGNED_SHORT:
vkIndexType = VK_INDEX_TYPE_UINT16;
break;
@@ -585,17 +590,69 @@ namespace MobileGL::MG_Backend::DirectVulkan {
vkIndexType = VK_INDEX_TYPE_UINT32;
break;
default:
MGLOG_W("DrawElements skipped: index type %u is not supported yet", type);
MGLOG_W("DrawElements skipped: index type %u is not supported yet", payload.indexType);
return;
}
MOBILEGL_ASSERT(indexData != nullptr, "DrawElements requires non-null indexData");
MOBILEGL_ASSERT(indexDataSizeBytes > 0, "DrawElements requires non-zero index data size");
MOBILEGL_ASSERT(payload.indexData != nullptr, "DrawElements requires non-null indexData");
MOBILEGL_ASSERT(payload.indexDataSizeBytes > 0, "DrawElements requires non-zero index data size");
if (!m_indexBuffer.IsValid() || m_indexBuffer.GetSize() < indexDataSizeBytes) {
const VertexInputStateFactory::BackendVertexInputState* vertexInputState = nullptr;
if (payload.drawArray.vertexArray && m_vertexInputStateFactory) {
vertexInputState = &m_vertexInputStateFactory->GetOrCreateVertexInputState(*payload.drawArray.vertexArray);
}
VkPipeline pipelineToBind = m_pipeline;
if (vertexInputState) {
pipelineToBind = GetOrCreatePipelineVariant(vertexInputState->hash, vertexInputState->state);
if (pipelineToBind == VK_NULL_HANDLE) {
MGLOG_W("DrawElements skipped: failed to create/get pipeline variant");
return;
}
}
if (vertexInputState && !vertexInputState->bindings.empty()) {
if (!payload.drawArray.hasPositionStream || payload.drawArray.positionData == nullptr ||
payload.drawArray.positionDataSizeBytes == 0) {
MGLOG_W("DrawElements skipped: vertex input expects stream but payload has no position data");
return;
}
if (vertexInputState->bindings.size() != 1) {
MGLOG_W("DrawElements skipped: only single-binding vertex input is supported for now (bindings=%zu)",
vertexInputState->bindings.size());
return;
}
if (vertexInputState->bindings[0].binding != 0) {
MGLOG_W("DrawElements skipped: only binding 0 is supported for now (binding=%u)",
vertexInputState->bindings[0].binding);
return;
}
if (!m_vertexBuffer.IsValid() || m_vertexBuffer.GetSize() < payload.drawArray.positionDataSizeBytes) {
m_vertexBuffer.Destroy();
const Bool created = m_vertexBuffer.Create(
m_allocator, static_cast<VkDeviceSize>(payload.drawArray.positionDataSizeBytes),
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
VMA_MEMORY_USAGE_AUTO,
VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT);
if (!created) {
MGLOG_E("DrawElements skipped: failed to create vertex buffer");
return;
}
}
if (!m_vertexBuffer.Upload(payload.drawArray.positionData,
static_cast<VkDeviceSize>(payload.drawArray.positionDataSizeBytes), 0)) {
MGLOG_E("DrawElements skipped: failed to upload vertex data");
return;
}
}
if (!m_indexBuffer.IsValid() || m_indexBuffer.GetSize() < payload.indexDataSizeBytes) {
m_indexBuffer.Destroy();
const Bool created = m_indexBuffer.Create(
m_allocator, static_cast<VkDeviceSize>(indexDataSizeBytes),
m_allocator, static_cast<VkDeviceSize>(payload.indexDataSizeBytes),
VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
VMA_MEMORY_USAGE_AUTO,
VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT);
@@ -605,7 +662,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
}
}
if (!m_indexBuffer.Upload(indexData, static_cast<VkDeviceSize>(indexDataSizeBytes), 0)) {
if (!m_indexBuffer.Upload(payload.indexData, static_cast<VkDeviceSize>(payload.indexDataSizeBytes), 0)) {
MGLOG_E("DrawElements skipped: failed to upload index data");
return;
}
@@ -613,7 +670,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
VkCommandBuffer& commandBuffer = frame.commandBuffer;
const auto swapchainExtent = m_swapchainObject.GetExtent();
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipeline);
vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineToBind);
if (vertexInputState && !vertexInputState->bindings.empty()) {
VkBuffer vertexBufferHandle = m_vertexBuffer.GetHandle();
VkDeviceSize vertexBufferOffset = 0;
vkCmdBindVertexBuffers(commandBuffer, 0, 1, &vertexBufferHandle, &vertexBufferOffset);
}
VkViewport viewport{};
viewport.x = 0.0f;
@@ -630,7 +693,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
vkCmdSetScissor(commandBuffer, 0, 1, &scissor);
vkCmdBindIndexBuffer(commandBuffer, m_indexBuffer.GetHandle(), 0, vkIndexType);
vkCmdDrawIndexed(commandBuffer, static_cast<Uint32>(count), 1, 0, 0, 0);
vkCmdDrawIndexed(commandBuffer, static_cast<Uint32>(payload.drawArray.count), 1, 0, 0, 0);
}
void VulkanRenderer::Render() {