GroveEngine/modules/BgfxRenderer/Passes/TextPass.h
StillHammer 613283d75c feat(BgfxRenderer): Phase 7-8 - Text, Tilemap, Multi-texture, Resize
Phase 7 - Text Rendering:
- Add BitmapFont with embedded 8x8 CP437 font (ASCII 32-126)
- Add TextPass for instanced glyph rendering
- Fix SceneCollector::parseText() to copy strings to FrameAllocator

Phase 8A - Multi-texture Support:
- Add numeric texture ID system in ResourceCache
- SpritePass sorts by textureId and batches per texture
- Flush batch on texture change for efficient rendering

Phase 8B - Tilemap Rendering:
- Add TilemapPass for grid-based tile rendering
- Support tileData as comma-separated string
- Tiles rendered as instanced quads

Window Resize:
- Handle window resize via process() input
- Call bgfx::reset() on size change

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-27 22:09:48 +08:00

51 lines
1.6 KiB
C++

#pragma once
#include "../RenderGraph/RenderPass.h"
#include "../RHI/RHITypes.h"
#include "../Text/BitmapFont.h"
namespace grove {
// ============================================================================
// Text Pass - Renders 2D text with instanced quads
// ============================================================================
class TextPass : public RenderPass {
public:
/**
* @brief Construct TextPass with required shader
* @param shader The shader program to use (sprite shader works)
*/
explicit TextPass(rhi::ShaderHandle shader);
const char* getName() const override { return "Text"; }
uint32_t getSortOrder() const override { return 150; } // After sprites, before debug
std::vector<const char*> getDependencies() const override { return {"Sprites"}; }
void setup(rhi::IRHIDevice& device) override;
void shutdown(rhi::IRHIDevice& device) override;
void execute(const FramePacket& frame, rhi::IRHIDevice& device, rhi::RHICommandBuffer& cmd) override;
/**
* @brief Get the bitmap font (for external texture loading)
*/
BitmapFont& getFont() { return m_font; }
const BitmapFont& getFont() const { return m_font; }
private:
rhi::ShaderHandle m_shader;
rhi::BufferHandle m_quadVB;
rhi::BufferHandle m_quadIB;
rhi::BufferHandle m_instanceBuffer;
rhi::UniformHandle m_textureSampler;
BitmapFont m_font;
// Reusable buffer for glyph instances
std::vector<SpriteInstance> m_glyphInstances;
static constexpr uint32_t MAX_GLYPHS_PER_BATCH = 4096;
};
} // namespace grove