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262eef377e
GroveEngine/modules/BgfxRenderer/Scene/SceneCollector.cpp
StillHammer 262eef377e feat(BgfxRenderer): Phase 5.5 - Sprite shader with instancing and texture support 
- Create proper sprite shader (vs_sprite.sc, fs_sprite.sc) with GPU instancing
- SpriteInstance struct now 80 bytes (5 x vec4) for GPU layout compatibility
- Add BufferDesc::Layout enum (Raw, PosColor, InstanceData) for proper vertex layouts
- BgfxDevice creates correct VertexLayout based on buffer type
- SpritePass uses PosColor layout for quad vertices (Position + Color0)
- Instance buffer uses 5 x vec4 layout (TexCoord7-3) for i_data0-4
- Add texture support with v_texcoord0 interpolation from instance UVs
- Create default white 1x1 texture fallback
- Compile shaders for SPIRV (Vulkan), GLSL (OpenGL), and Metal

Visual test confirms sprites render correctly at ~545 FPS.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-27 19:27:25 +08:00

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#include "SceneCollector.h"
#include "grove/IIO.h"
#include "grove/IDataNode.h"
#include "../Frame/FrameAllocator.h"
#include <cstring>
namespace grove {
void SceneCollector::setup(IIO* io) {
// Subscribe to all render topics
io->subscribe("render:*");
// Initialize default view (will be overridden by camera messages)
initDefaultView(1280, 720);
}
void SceneCollector::collect(IIO* io, float deltaTime) {
m_deltaTime = deltaTime;
m_frameNumber++;
// Pull all pending messages
while (io->hasMessages() > 0) {
Message msg = io->pullMessage();
if (!msg.data) continue;
// Route message based on topic
if (msg.topic == "render:sprite") {
parseSprite(*msg.data);
}
else if (msg.topic == "render:sprite:batch") {
parseSpriteBatch(*msg.data);
}
else if (msg.topic == "render:tilemap") {
parseTilemap(*msg.data);
}
else if (msg.topic == "render:text") {
parseText(*msg.data);
}
else if (msg.topic == "render:particle") {
parseParticle(*msg.data);
}
else if (msg.topic == "render:camera") {
parseCamera(*msg.data);
}
else if (msg.topic == "render:clear") {
parseClear(*msg.data);
}
else if (msg.topic == "render:debug:line") {
parseDebugLine(*msg.data);
}
else if (msg.topic == "render:debug:rect") {
parseDebugRect(*msg.data);
}
}
}
FramePacket SceneCollector::finalize(FrameAllocator& allocator) {
FramePacket packet;
packet.frameNumber = m_frameNumber;
packet.deltaTime = m_deltaTime;
packet.clearColor = m_clearColor;
packet.mainView = m_mainView;
packet.allocator = &allocator;
// Copy sprites to frame allocator
if (!m_sprites.empty()) {
SpriteInstance* sprites = allocator.allocateArray<SpriteInstance>(m_sprites.size());
if (sprites) {
std::memcpy(sprites, m_sprites.data(), m_sprites.size() * sizeof(SpriteInstance));
packet.sprites = sprites;
packet.spriteCount = m_sprites.size();
}
} else {
packet.sprites = nullptr;
packet.spriteCount = 0;
}
// Copy tilemaps
if (!m_tilemaps.empty()) {
TilemapChunk* tilemaps = allocator.allocateArray<TilemapChunk>(m_tilemaps.size());
if (tilemaps) {
std::memcpy(tilemaps, m_tilemaps.data(), m_tilemaps.size() * sizeof(TilemapChunk));
packet.tilemaps = tilemaps;
packet.tilemapCount = m_tilemaps.size();
}
} else {
packet.tilemaps = nullptr;
packet.tilemapCount = 0;
}
// Copy texts
if (!m_texts.empty()) {
TextCommand* texts = allocator.allocateArray<TextCommand>(m_texts.size());
if (texts) {
std::memcpy(texts, m_texts.data(), m_texts.size() * sizeof(TextCommand));
packet.texts = texts;
packet.textCount = m_texts.size();
}
} else {
packet.texts = nullptr;
packet.textCount = 0;
}
// Copy particles
if (!m_particles.empty()) {
ParticleInstance* particles = allocator.allocateArray<ParticleInstance>(m_particles.size());
if (particles) {
std::memcpy(particles, m_particles.data(), m_particles.size() * sizeof(ParticleInstance));
packet.particles = particles;
packet.particleCount = m_particles.size();
}
} else {
packet.particles = nullptr;
packet.particleCount = 0;
}
// Copy debug lines
if (!m_debugLines.empty()) {
DebugLine* lines = allocator.allocateArray<DebugLine>(m_debugLines.size());
if (lines) {
std::memcpy(lines, m_debugLines.data(), m_debugLines.size() * sizeof(DebugLine));
packet.debugLines = lines;
packet.debugLineCount = m_debugLines.size();
}
} else {
packet.debugLines = nullptr;
packet.debugLineCount = 0;
}
// Copy debug rects
if (!m_debugRects.empty()) {
DebugRect* rects = allocator.allocateArray<DebugRect>(m_debugRects.size());
if (rects) {
std::memcpy(rects, m_debugRects.data(), m_debugRects.size() * sizeof(DebugRect));
packet.debugRects = rects;
packet.debugRectCount = m_debugRects.size();
}
} else {
packet.debugRects = nullptr;
packet.debugRectCount = 0;
}
return packet;
}
void SceneCollector::clear() {
m_sprites.clear();
m_tilemaps.clear();
m_texts.clear();
m_particles.clear();
m_debugLines.clear();
m_debugRects.clear();
}
// ============================================================================
// Message Parsing
// ============================================================================
void SceneCollector::parseSprite(const IDataNode& data) {
SpriteInstance sprite;
// i_data0
sprite.x = static_cast<float>(data.getDouble("x", 0.0));
sprite.y = static_cast<float>(data.getDouble("y", 0.0));
sprite.scaleX = static_cast<float>(data.getDouble("scaleX", 1.0));
sprite.scaleY = static_cast<float>(data.getDouble("scaleY", 1.0));
// i_data1
sprite.rotation = static_cast<float>(data.getDouble("rotation", 0.0));
sprite.u0 = static_cast<float>(data.getDouble("u0", 0.0));
sprite.v0 = static_cast<float>(data.getDouble("v0", 0.0));
sprite.u1 = static_cast<float>(data.getDouble("u1", 1.0));
// i_data2
sprite.v1 = static_cast<float>(data.getDouble("v1", 1.0));
sprite.textureId = static_cast<float>(data.getInt("textureId", 0));
sprite.layer = static_cast<float>(data.getInt("layer", 0));
sprite.padding0 = 0.0f;
// i_data3 (reserved)
sprite.reserved[0] = 0.0f;
sprite.reserved[1] = 0.0f;
sprite.reserved[2] = 0.0f;
sprite.reserved[3] = 0.0f;
// i_data4 (color as floats)
uint32_t color = static_cast<uint32_t>(data.getInt("color", 0xFFFFFFFF));
sprite.r = static_cast<float>((color >> 24) & 0xFF) / 255.0f;
sprite.g = static_cast<float>((color >> 16) & 0xFF) / 255.0f;
sprite.b = static_cast<float>((color >> 8) & 0xFF) / 255.0f;
sprite.a = static_cast<float>(color & 0xFF) / 255.0f;
m_sprites.push_back(sprite);
}
void SceneCollector::parseSpriteBatch(const IDataNode& data) {
// Get sprites child node and iterate
// Note: const_cast needed because IDataNode::getChildReadOnly() is not const
// (it should be, but changing the interface requires broader refactoring)
IDataNode* spritesNode = const_cast<IDataNode&>(data).getChildReadOnly("sprites");
if (!spritesNode) return;
for (const auto& name : spritesNode->getChildNames()) {
IDataNode* spriteData = spritesNode->getChildReadOnly(name);
if (spriteData) {
parseSprite(*spriteData);
}
}
}
void SceneCollector::parseTilemap(const IDataNode& data) {
TilemapChunk chunk;
chunk.x = static_cast<float>(data.getDouble("x", 0.0));
chunk.y = static_cast<float>(data.getDouble("y", 0.0));
chunk.width = static_cast<uint16_t>(data.getInt("width", 0));
chunk.height = static_cast<uint16_t>(data.getInt("height", 0));
chunk.tileWidth = static_cast<uint16_t>(data.getInt("tileW", 16));
chunk.tileHeight = static_cast<uint16_t>(data.getInt("tileH", 16));
chunk.textureId = static_cast<uint16_t>(data.getInt("textureId", 0));
chunk.tiles = nullptr; // TODO: Parse tile array
chunk.tileCount = 0;
m_tilemaps.push_back(chunk);
}
void SceneCollector::parseText(const IDataNode& data) {
TextCommand text;
text.x = static_cast<float>(data.getDouble("x", 0.0));
text.y = static_cast<float>(data.getDouble("y", 0.0));
text.text = nullptr; // TODO: Copy string to frame allocator
text.fontId = static_cast<uint16_t>(data.getInt("fontId", 0));
text.fontSize = static_cast<uint16_t>(data.getInt("fontSize", 16));
text.color = static_cast<uint32_t>(data.getInt("color", 0xFFFFFFFF));
text.layer = static_cast<uint16_t>(data.getInt("layer", 0));
m_texts.push_back(text);
}
void SceneCollector::parseParticle(const IDataNode& data) {
ParticleInstance particle;
particle.x = static_cast<float>(data.getDouble("x", 0.0));
particle.y = static_cast<float>(data.getDouble("y", 0.0));
particle.vx = static_cast<float>(data.getDouble("vx", 0.0));
particle.vy = static_cast<float>(data.getDouble("vy", 0.0));
particle.size = static_cast<float>(data.getDouble("size", 1.0));
particle.life = static_cast<float>(data.getDouble("life", 1.0));
particle.color = static_cast<uint32_t>(data.getInt("color", 0xFFFFFFFF));
particle.textureId = static_cast<uint16_t>(data.getInt("textureId", 0));
m_particles.push_back(particle);
}
void SceneCollector::parseCamera(const IDataNode& data) {
m_mainView.positionX = static_cast<float>(data.getDouble("x", 0.0));
m_mainView.positionY = static_cast<float>(data.getDouble("y", 0.0));
m_mainView.zoom = static_cast<float>(data.getDouble("zoom", 1.0));
m_mainView.viewportX = static_cast<uint16_t>(data.getInt("viewportX", 0));
m_mainView.viewportY = static_cast<uint16_t>(data.getInt("viewportY", 0));
m_mainView.viewportW = static_cast<uint16_t>(data.getInt("viewportW", 1280));
m_mainView.viewportH = static_cast<uint16_t>(data.getInt("viewportH", 720));
// Compute view matrix (translation by -camera position)
std::memset(m_mainView.viewMatrix, 0, sizeof(m_mainView.viewMatrix));
m_mainView.viewMatrix[0] = 1.0f;
m_mainView.viewMatrix[5] = 1.0f;
m_mainView.viewMatrix[10] = 1.0f;
m_mainView.viewMatrix[12] = -m_mainView.positionX;
m_mainView.viewMatrix[13] = -m_mainView.positionY;
m_mainView.viewMatrix[15] = 1.0f;
// Compute orthographic projection matrix with zoom
float width = static_cast<float>(m_mainView.viewportW) / m_mainView.zoom;
float height = static_cast<float>(m_mainView.viewportH) / m_mainView.zoom;
std::memset(m_mainView.projMatrix, 0, sizeof(m_mainView.projMatrix));
m_mainView.projMatrix[0] = 2.0f / width;
m_mainView.projMatrix[5] = -2.0f / height; // Y-flip for top-left origin
m_mainView.projMatrix[10] = 1.0f;
m_mainView.projMatrix[12] = -1.0f;
m_mainView.projMatrix[13] = 1.0f;
m_mainView.projMatrix[15] = 1.0f;
}
void SceneCollector::parseClear(const IDataNode& data) {
m_clearColor = static_cast<uint32_t>(data.getInt("color", 0x303030FF));
}
void SceneCollector::parseDebugLine(const IDataNode& data) {
DebugLine line;
line.x1 = static_cast<float>(data.getDouble("x1", 0.0));
line.y1 = static_cast<float>(data.getDouble("y1", 0.0));
line.x2 = static_cast<float>(data.getDouble("x2", 0.0));
line.y2 = static_cast<float>(data.getDouble("y2", 0.0));
line.color = static_cast<uint32_t>(data.getInt("color", 0xFF0000FF));
m_debugLines.push_back(line);
}
void SceneCollector::parseDebugRect(const IDataNode& data) {
DebugRect rect;
rect.x = static_cast<float>(data.getDouble("x", 0.0));
rect.y = static_cast<float>(data.getDouble("y", 0.0));
rect.w = static_cast<float>(data.getDouble("w", 0.0));
rect.h = static_cast<float>(data.getDouble("h", 0.0));
rect.color = static_cast<uint32_t>(data.getInt("color", 0x00FF00FF));
rect.filled = data.getBool("filled", false);
m_debugRects.push_back(rect);
}
void SceneCollector::initDefaultView(uint16_t width, uint16_t height) {
m_mainView.positionX = 0.0f;
m_mainView.positionY = 0.0f;
m_mainView.zoom = 1.0f;
m_mainView.viewportX = 0;
m_mainView.viewportY = 0;
m_mainView.viewportW = width;
m_mainView.viewportH = height;
// Identity view matrix
for (int i = 0; i < 16; ++i) {
m_mainView.viewMatrix[i] = (i % 5 == 0) ? 1.0f : 0.0f;
}
// Orthographic projection matrix (2D)
// Maps (0,0)-(width,height) to (-1,-1)-(1,1)
std::memset(m_mainView.projMatrix, 0, sizeof(m_mainView.projMatrix));
m_mainView.projMatrix[0] = 2.0f / width;
m_mainView.projMatrix[5] = -2.0f / height; // Y-flip for top-left origin
m_mainView.projMatrix[10] = 1.0f;
m_mainView.projMatrix[12] = -1.0f;
m_mainView.projMatrix[13] = 1.0f;
m_mainView.projMatrix[15] = 1.0f;
}
} // namespace grove
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