StillHammer
262eef377e
- 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>
144 lines
3.9 KiB
C++
144 lines
3.9 KiB
C++
#pragma once
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#include <cstdint>
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#include <cstddef>
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namespace grove {
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class FrameAllocator;
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// ============================================================================
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// Sprite Instance Data
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// ============================================================================
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// GPU Instance data - must match shader layout (5 x vec4 = 80 bytes)
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// i_data0: x, y, scaleX, scaleY
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// i_data1: rotation, u0, v0, u1
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// i_data2: v1, textureId (as float), layer (as float), padding
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// i_data3: reserved
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// i_data4: r, g, b, a (color as floats 0-1)
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struct SpriteInstance {
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// i_data0
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float x, y; // Position
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float scaleX, scaleY; // Scale
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// i_data1
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float rotation; // Radians
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float u0, v0, u1; // UV start + end x
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// i_data2
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float v1; // UV end y
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float textureId; // As float for GPU compatibility
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float layer; // Z-order as float
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float padding0;
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// i_data3
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float reserved[4]; // Reserved for future use
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// i_data4
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float r, g, b, a; // Color as floats (0-1)
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};
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static_assert(sizeof(SpriteInstance) == 80, "SpriteInstance must be 80 bytes for GPU instancing");
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// ============================================================================
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// Tilemap Chunk Data
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// ============================================================================
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struct TilemapChunk {
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float x, y; // Chunk position
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uint16_t width, height;
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uint16_t tileWidth, tileHeight;
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uint16_t textureId;
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const uint16_t* tiles; // Tile indices in tileset
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size_t tileCount;
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};
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// ============================================================================
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// Text Command Data
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// ============================================================================
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struct TextCommand {
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float x, y;
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const char* text; // Null-terminated, allocated in FrameAllocator
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uint16_t fontId;
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uint16_t fontSize;
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uint32_t color;
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uint16_t layer;
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};
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// ============================================================================
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// Particle Instance Data
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// ============================================================================
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struct ParticleInstance {
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float x, y;
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float vx, vy;
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float size;
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float life; // 0-1, remaining time
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uint32_t color;
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uint16_t textureId;
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};
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// ============================================================================
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// Debug Shape Data
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// ============================================================================
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struct DebugLine {
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float x1, y1, x2, y2;
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uint32_t color;
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};
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struct DebugRect {
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float x, y, w, h;
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uint32_t color;
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bool filled;
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};
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// ============================================================================
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// Camera/View Info
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// ============================================================================
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struct ViewInfo {
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float viewMatrix[16];
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float projMatrix[16];
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float positionX, positionY;
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float zoom;
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uint16_t viewportX, viewportY;
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uint16_t viewportW, viewportH;
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};
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// ============================================================================
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// Frame Packet - IMMUTABLE after construction
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// ============================================================================
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struct FramePacket {
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uint64_t frameNumber;
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float deltaTime;
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// Collected data (read-only for passes)
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const SpriteInstance* sprites;
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size_t spriteCount;
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const TilemapChunk* tilemaps;
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size_t tilemapCount;
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const TextCommand* texts;
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size_t textCount;
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const ParticleInstance* particles;
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size_t particleCount;
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const DebugLine* debugLines;
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size_t debugLineCount;
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const DebugRect* debugRects;
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size_t debugRectCount;
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// Main view
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ViewInfo mainView;
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// Clear color
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uint32_t clearColor;
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// Allocator for temporary pass data
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FrameAllocator* allocator;
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};
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} // namespace grove
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