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mipmaps

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This commit is contained in:
Isuru Samarathunga
2025-10-16 22:59:33 +05:30
parent f742dcfaff
commit dfce12ee10
9 changed files with 89 additions and 31 deletions
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2
Engine/Src/Imp/CPP/InternalEngine.cpp
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@ -74,6 +74,8 @@ namespace ia::iae
Physics::Initialize();
Game_OnInitialize();
Engine::ResizeDisplay(config->ScreenWidth, config->ScreenHeight);
}
VOID __Internal_Engine::Terminate()

44
Engine/Src/Imp/CPP/Renderer/GPUResourceManager.cpp
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@ -36,6 +36,9 @@ namespace ia::iae
g_linearClampSampler = SDL_CreateGPUSampler(Renderer::GetDevice(), &createInfo);
createInfo.min_filter = SDL_GPU_FILTER_NEAREST;
createInfo.mag_filter = SDL_GPU_FILTER_NEAREST;
createInfo.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_LINEAR;
createInfo.address_mode_u = SDL_GPU_SAMPLERADDRESSMODE_REPEAT,
createInfo.address_mode_v = SDL_GPU_SAMPLERADDRESSMODE_REPEAT,
createInfo.address_mode_w = SDL_GPU_SAMPLERADDRESSMODE_REPEAT,
@ -62,15 +65,19 @@ namespace ia::iae
SDL_GPUTexture *GPUResourceManager::CreateTexture(IN SDL_GPUTextureUsageFlags usage, IN INT32 width,
IN INT32 height, IN PCUINT8 rgbaData,
IN SDL_GPUTextureFormat format)
IN SDL_GPUTextureFormat format, IN BOOL generateMipmaps)
{
const auto mipLevels = generateMipmaps ? floor(log2(ia_max(width, height))) + 1 : 1;
STATIC Vector<UINT8> TMP_COLOR_BUFFER;
SDL_GPUTextureCreateInfo createInfo{.type = SDL_GPU_TEXTURETYPE_2D,
.format = format,
.usage = usage,
.width = (UINT32) width,
.height = (UINT32) height,
.layer_count_or_depth = 1,
.num_levels = 1,
.num_levels = (UINT32) mipLevels,
.sample_count = SDL_GPU_SAMPLECOUNT_1};
const auto result = SDL_CreateGPUTexture(Renderer::GetDevice(), &createInfo);
if (!result)
@ -80,14 +87,25 @@ namespace ia::iae
}
if (rgbaData)
{
TMP_COLOR_BUFFER.reset();
TMP_COLOR_BUFFER.resize(width * height * 4);
for (SIZE_T i = 0; i < TMP_COLOR_BUFFER.size() >> 2; i++)
{
const auto a = static_cast<FLOAT32>(rgbaData[i * 4 + 3]) / 255.0f;
TMP_COLOR_BUFFER[i * 4 + 0] = static_cast<UINT8>(rgbaData[i * 4 + 0] * a);
TMP_COLOR_BUFFER[i * 4 + 1] = static_cast<UINT8>(rgbaData[i * 4 + 1] * a);
TMP_COLOR_BUFFER[i * 4 + 2] = static_cast<UINT8>(rgbaData[i * 4 + 2] * a);
TMP_COLOR_BUFFER[i * 4 + 3] = rgbaData[i * 4 + 3];
}
SDL_GPUTransferBufferCreateInfo stagingBufferCreateInfo{.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD,
.size = (UINT32) width * (UINT32) height * 4};
const auto stagingBuffer = SDL_CreateGPUTransferBuffer(Renderer::GetDevice(), &stagingBufferCreateInfo);
const auto mappedPtr = SDL_MapGPUTransferBuffer(Renderer::GetDevice(), stagingBuffer, false);
SDL_memcpy(mappedPtr, rgbaData, width * height * 4);
SDL_memcpy(mappedPtr, TMP_COLOR_BUFFER.data(), width * height * 4);
SDL_UnmapGPUTransferBuffer(Renderer::GetDevice(), stagingBuffer);
const auto cmdBuffer = SDL_AcquireGPUCommandBuffer(Renderer::GetDevice());
auto cmdBuffer = SDL_AcquireGPUCommandBuffer(Renderer::GetDevice());
const auto copyPass = SDL_BeginGPUCopyPass(cmdBuffer);
SDL_GPUTextureTransferInfo transferInfo{.transfer_buffer = stagingBuffer, .offset = 0};
@ -98,6 +116,14 @@ namespace ia::iae
SDL_SubmitGPUCommandBuffer(cmdBuffer);
SDL_WaitForGPUIdle(Renderer::GetDevice());
SDL_ReleaseGPUTransferBuffer(Renderer::GetDevice(), stagingBuffer);
if (mipLevels > 1)
{
cmdBuffer = SDL_AcquireGPUCommandBuffer(Renderer::GetDevice());
SDL_GenerateMipmapsForGPUTexture(cmdBuffer, result);
SDL_SubmitGPUCommandBuffer(cmdBuffer);
SDL_WaitForGPUIdle(Renderer::GetDevice());
}
}
return result;
}
@ -138,7 +164,8 @@ namespace ia::iae
VOID GPUResourceManager::DestroyTexture(IN SDL_GPUTexture *handle)
{
if(!handle) return;
if (!handle)
return;
SDL_ReleaseGPUTexture(Renderer::GetDevice(), handle);
}
@ -175,8 +202,8 @@ namespace ia::iae
return result;
}
SDL_GPUTexture* GPUResourceManager::CombineTextures(IN SDL_GPUTexture** textures, IN INT32 unitWidth, IN INT32 unitHeight,
IN INT32 unitCountX, IN INT32 unitCountY)
SDL_GPUTexture *GPUResourceManager::CombineTextures(IN SDL_GPUTexture **textures, IN INT32 unitWidth,
IN INT32 unitHeight, IN INT32 unitCountX, IN INT32 unitCountY)
{
SDL_GPUTextureCreateInfo createInfo{.type = SDL_GPU_TEXTURETYPE_2D,
.format = SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM,
@ -198,7 +225,8 @@ namespace ia::iae
for (INT32 x = 0; x < unitCountX; x++)
{
SDL_GPUTextureLocation src{.texture = textures[x + (y * unitCountX)], .x = 0, .y = 0};
SDL_GPUTextureLocation dst{.texture = result, .x = (UINT32)(x * unitWidth), .y = (UINT32)(y * unitHeight)};
SDL_GPUTextureLocation dst{
.texture = result, .x = (UINT32) (x * unitWidth), .y = (UINT32) (y * unitHeight)};
SDL_CopyGPUTextureToTexture(copyPass, &src, &dst, unitWidth, unitHeight, 1, false);
}
}

18
Engine/Src/Imp/CPP/Renderer/Pipeline.cpp
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@ -51,7 +51,14 @@ namespace ia::iae
SDL_GPUColorTargetDescription colorTargetDesc = {
.format = Renderer::GetRenderTargetFormat(),
};
.blend_state = {.src_color_blendfactor = SDL_GPU_BLENDFACTOR_ONE,
.dst_color_blendfactor = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,
.color_blend_op = SDL_GPU_BLENDOP_ADD,
.src_alpha_blendfactor = SDL_GPU_BLENDFACTOR_ONE,
.dst_alpha_blendfactor = SDL_GPU_BLENDFACTOR_ONE_MINUS_SRC_ALPHA,
.alpha_blend_op = SDL_GPU_BLENDOP_ADD,
.enable_blend = true,
.enable_color_write_mask = false}};
SDL_GPUVertexBufferDescription vertexBufferDesc = {
.slot = 0,
@ -85,16 +92,15 @@ namespace ia::iae
.front_face = SDL_GPU_FRONTFACE_COUNTER_CLOCKWISE},
.depth_stencil_state = SDL_GPUDepthStencilState{.compare_op = SDL_GPU_COMPAREOP_GREATER_OR_EQUAL,
.write_mask = 0xFF,
.enable_depth_test = enableDepthTest,
.enable_depth_write = enableDepthTest,
.enable_depth_test = false,
.enable_depth_write = false,
.enable_stencil_test = false},
.target_info = {.color_target_descriptions = &colorTargetDesc,
.num_color_targets = 1,
.depth_stencil_format = SDL_GPU_TEXTUREFORMAT_D16_UNORM,
.has_depth_stencil_target = enableDepthTest},
.has_depth_stencil_target = false},
};
if(!(m_handle = SDL_CreateGPUGraphicsPipeline(Renderer::GetDevice(), &createInfo)))
if (!(m_handle = SDL_CreateGPUGraphicsPipeline(Renderer::GetDevice(), &createInfo)))
THROW_UNKNOWN("Failed to create a SDL graphics pipeline: ", SDL_GetError());
SDL_ReleaseGPUShader(Renderer::GetDevice(), pixelShader);

28
Engine/Src/Imp/CPP/Renderer/Renderer.cpp
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@ -145,8 +145,8 @@ namespace ia::iae
s_state.ColorTargetInfo.clear_color = SDL_FColor{clearColor.x, clearColor.y, clearColor.z, 1.0f};
s_state.ColorTargetInfo.texture = s_renderTargetSceneColor;
s_state.DepthStencilTargetInfo.texture = s_renderTargetSceneDepth;
s_state.ActiveRenderPass = SDL_BeginGPURenderPass(s_state.ActiveCommandBuffer, &s_state.ColorTargetInfo, 1,
&s_state.DepthStencilTargetInfo);
s_state.ActiveRenderPass =
SDL_BeginGPURenderPass(s_state.ActiveCommandBuffer, &s_state.ColorTargetInfo, 1, nullptr);
SDL_BindGPUGraphicsPipeline(s_state.ActiveRenderPass, s_geometryPipeline->GetHandle());
SDL_PushGPUVertexUniformData(
@ -185,8 +185,8 @@ namespace ia::iae
SDL_BeginGPURenderPass(s_state.ActiveCommandBuffer, &s_state.ColorTargetInfo, 1, nullptr);
SDL_BindGPUGraphicsPipeline(s_state.ActiveRenderPass, s_postprocessPipeline->GetHandle());
SDL_GPUTextureSamplerBinding textureBindings[2] = {
{.texture = s_renderTargetSceneColor, .sampler = GPUResourceManager::GetSampler_LinearRepeat()},
{.texture = s_renderTargetDebugDrawColor, .sampler = GPUResourceManager::GetSampler_LinearRepeat()},
{.texture = s_renderTargetSceneColor, .sampler = GPUResourceManager::GetSampler_LinearClamp()},
{.texture = s_renderTargetDebugDrawColor, .sampler = GPUResourceManager::GetSampler_LinearClamp()},
};
SDL_BindGPUFragmentSamplers(s_state.ActiveRenderPass, 0, textureBindings, 2);
SDL_DrawGPUPrimitives(s_state.ActiveRenderPass, 6, 1, 0, 0);
@ -287,8 +287,11 @@ namespace ia::iae
s_fragmentUniform.FlippedH = s_state.FlippedH;
s_fragmentUniform.FlippedV = s_state.FlippedV;
s_fragmentUniform.TextureOffset = s_state.TextureOffset;
SDL_GPUTextureSamplerBinding textureBinding{.texture = s_state.ActiveTexture,
.sampler = ((s_state.TextureOffset.x <= FLOAT32_EPSILON) && (s_state.TextureOffset.y <= FLOAT32_EPSILON)) ? GPUResourceManager::GetSampler_LinearClamp() : GPUResourceManager::GetSampler_LinearRepeat()};
SDL_GPUTextureSamplerBinding textureBinding{
.texture = s_state.ActiveTexture,
.sampler = ((s_state.TextureOffset.x <= FLOAT32_EPSILON) && (s_state.TextureOffset.y <= FLOAT32_EPSILON))
? GPUResourceManager::GetSampler_LinearClamp()
: GPUResourceManager::GetSampler_LinearRepeat()};
SDL_BindGPUFragmentSamplers(s_state.ActiveRenderPass, 0, &textureBinding, 1);
SDL_PushGPUFragmentUniformData(s_state.ActiveCommandBuffer, 0, &s_fragmentUniform, sizeof(s_fragmentUniform));
@ -404,6 +407,19 @@ namespace ia::iae
sizeof(Mat4));
}
VOID Engine::SetRenderState_TransformUI(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation)
{
Renderer::s_state.ModelMatrix =
glm::translate(glm::mat4(1.0f), glm::vec3{position.x, position.y,
static_cast<FLOAT32>(0xFF << 13)});
Renderer::s_state.ModelMatrix =
glm::rotate(Renderer::s_state.ModelMatrix, rotation, glm::vec3(0.0f, 0.0f, 1.0f));
Renderer::s_state.ModelMatrix = glm::scale(Renderer::s_state.ModelMatrix, glm::vec3{scale.x, scale.y, 1.0f});
SDL_PushGPUVertexUniformData(Renderer::s_state.ActiveCommandBuffer, 2, &Renderer::s_state.ModelMatrix,
sizeof(Mat4));
}
VOID Engine::SetRenderState_YSortingEnabled(IN BOOL value)
{
Renderer::s_state.YSortingEnabled = value;

8
Engine/Src/Imp/CPP/ResourceManager.cpp
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@ -61,8 +61,8 @@ namespace ia::iae
Handle ResourceManager::CreateImage(IN CONST String &name, IN PCUINT8 rgbaData, IN INT32 width, IN INT32 height)
{
const auto texture = GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER, width, height, rgbaData,
SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM);
const auto texture = GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER | SDL_GPU_TEXTUREUSAGE_COLOR_TARGET, width, height, rgbaData,
SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, true);
s_imageHandles.pushBack(ImageResource{.OriginalWidth = width,
.OriginalHeight = height,
.OriginalPixelData = new UINT8[width * height * 4],
@ -153,8 +153,8 @@ namespace ia::iae
stbir_resize_uint8_linear(s_imageHandles[image].OriginalPixelData, s_imageHandles[image].OriginalWidth,
s_imageHandles[image].OriginalHeight, s_imageHandles[image].OriginalWidth * 4,
nullptr, newWidth, newHeight, newWidth * 4, stbir_pixel_layout::STBIR_RGBA);
const auto texture = GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER, newWidth, newHeight,
newPixelData, SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM);
const auto texture = GPUResourceManager::CreateTexture(SDL_GPU_TEXTUREUSAGE_SAMPLER | SDL_GPU_TEXTUREUSAGE_COLOR_TARGET, newWidth, newHeight,
newPixelData, SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, true);
GPUResourceManager::DestroyTexture(s_imageHandles[image].Handle);
s_imageHandles[image].Handle = texture;
s_imageHandles[image].Width = newWidth;

13
Engine/Src/Imp/CPP/UI.cpp
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@ -30,6 +30,9 @@ namespace ia::iae
BOOL g_debuggerEnabled{false};
Rml::ElementDocument *g_document{};
String g_markup;
Rml::SharedPtr<Rml::StyleSheetContainer> g_styleSheetContainer;
class RmlUIRenderInterface : public Rml::RenderInterface
{
public:
@ -445,6 +448,7 @@ namespace ia::iae
VOID UI::OnScreenResize(IN INT32 newWidth, IN INT32 newHeight)
{
//g_context->SetDimensions(Rml::Vector2i{newWidth, newHeight});
}
VOID UI::AddFontFromFile(IN CONST String &path)
@ -454,9 +458,10 @@ namespace ia::iae
VOID UI::SetMarkup(IN CONST String &markup, IN CONST String &styles)
{
g_document->SetStyleSheetContainer(Rml::Factory::InstanceStyleSheetString(styles.c_str()));
g_document->SetInnerRML(
BuildString("<body style=\"display: block; width: 100%; height: 100%;\">", markup, "</body>").c_str());
g_styleSheetContainer = Rml::Factory::InstanceStyleSheetString(styles.c_str());
g_markup = BuildString("<body style=\"display: block; width: 100vw; height: 100vh;\">", markup, "</body>");
//g_document->SetStyleSheetContainer(g_styleSheetContainer);
//g_document->SetInnerRML(g_markup.c_str());
}
VOID UI::AddClickEvent(IN PCCHAR elementId, IN std::function<VOID()> callback)
@ -491,7 +496,7 @@ namespace ia::iae
Engine::SetRenderState_ColorOverlay({255, 255, 255, 255});
Engine::SetRenderState_TextureOffset({0, 0});
Engine::SetRenderState_CameraRelative(false);
Engine::SetRenderState_Transform({translation.x, translation.y}, {1.0f, 1.0f}, 0, 0xFF, 0);
Engine::SetRenderState_TransformUI({translation.x, translation.y}, {1.0f, 1.0f}, 0);
Engine::DrawGeometry((Handle) geometry);
}

4
Engine/Src/Imp/HPP/Renderer/EmbeddedShader.hpp
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File diff suppressed because one or more lines are too long

2
Engine/Src/Imp/HPP/Renderer/GPUResourceManager.hpp
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@ -30,7 +30,7 @@ namespace ia::iae
STATIC SDL_GPUSampler *GetSampler_LinearClamp();
STATIC SDL_GPUSampler *GetSampler_LinearRepeat();
STATIC SDL_GPUTexture *CreateTexture(IN SDL_GPUTextureUsageFlags usage, IN INT32 width, IN INT32 height, IN PCUINT8 rgbaData = nullptr, IN SDL_GPUTextureFormat format = SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM);
STATIC SDL_GPUTexture *CreateTexture(IN SDL_GPUTextureUsageFlags usage, IN INT32 width, IN INT32 height, IN PCUINT8 rgbaData = nullptr, IN SDL_GPUTextureFormat format = SDL_GPU_TEXTUREFORMAT_R8G8B8A8_UNORM, IN BOOL generateMipmaps = false);
STATIC SDL_GPUBuffer *CreateDeviceLocalBuffer(IN SDL_GPUBufferUsageFlags usage, IN PCVOID data, IN UINT32 dataSize);
STATIC VOID DestroyTexture(IN SDL_GPUTexture *handle);
STATIC VOID DestroyBuffer(IN SDL_GPUBuffer *handle);

1
Engine/Src/Inc/IAEngine/Engine.hpp
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@ -61,6 +61,7 @@ namespace ia::iae
STATIC VOID SetRenderState_Texture(IN Handle image);
STATIC VOID SetRenderState_Transform(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation, IN UINT8 layer,
IN INT16 sortIndex);
STATIC VOID SetRenderState_TransformUI(IN Vec2 position, IN Vec2 scale, IN FLOAT32 rotation);
STATIC Vec2 GetRendererScalingFactor();
// Debug Draw Functions