pke: first-pass 2d overlay render pass scaffolding

1 files changed, 74 insertions, 0 deletions

diff --git a/src/font.hpp b/src/font.hpp
new file mode 100644
index 0000000..48a7b40
--- /dev/null
+++ b/src/font.hpp
@@ -0,0 +1,74 @@
+#ifndef PKE_FONT_TYPE_HPP
+#define PKE_FONT_TYPE_HPP
+
+#include "asset-manager.hpp"
+#include "components.hpp"
+#include "pk.h"
+
+#include <glm/vec4.hpp>
+
+/*
+Vert: (two triangles)
+vec2 vertex
+vec2 uv
+
+Inst:
+vec4 fg_color
+vec4 bg_color
+vec4 sprite_region
+float width
+
+Texture:
+the MTSDF
+*/
+
+TypeSafeInt_H(FontTypeIndex, uint16_t, 0xFFFF);
+TypeSafeInt_H(FontRenderIndex, uint16_t, 0xFFFF);
+
+struct FontGlyphChar {
+	uint32_t unicode;
+	glm::ivec4 bounds;
+};
+struct FontRender {
+	uint32_t len;
+	FontTypeIndex index_ft;
+	FontRenderIndex index_fr;
+};
+struct FontType : public Entity_Base {
+	pk_cstr title;
+	AssetHandle fontTextureAssetKey;
+	AssetHandle glyphDetailsAssetKey;
+	VkDeviceMemory deviceMemoryVert = VK_NULL_HANDLE;
+	VkDeviceMemory deviceMemoryTexture = VK_NULL_HANDLE;
+	VkDeviceMemory deviceMemoryInst = VK_NULL_HANDLE;
+	VkImage textureImage = VK_NULL_HANDLE;
+	VkImageView textureImageView = VK_NULL_HANDLE;
+	VkDescriptorPool vkDescriptorPool = VK_NULL_HANDLE;
+	VkDescriptorSet *vkDescriptorSets = nullptr;
+	FontRender *renders = nullptr;
+	FontRenderIndex n_render = FontRenderIndex{0};
+	FontRenderIndex h_render = FontRenderIndex{0};
+	FontTypeIndex index_ft = FontTypeIndex{0};
+	struct FontTypeBindings {
+		BufferBindingDetails vertexBD;
+		BufferBindingDetails uvBD;
+		BufferBindingDetails indexBD;
+		BufferBindingDetails instanceBD;
+		uint32_t indexCount;
+		uint32_t instanceCounter = 0;
+		uint32_t instanceBufferMaxCount = 0;
+	} bindings;
+};
+
+
+void FontType_Init();
+void FontType_Teardown();
+// void FontType_Serialize(FontType *ft); // TODO
+// void FontType_Deserialize(FontType **ft); // TODO
+FontType* FontType_GetFonts(FontTypeIndex &count);
+FontTypeIndex FontType_RegisterFont(pk_cstr title, AssetKey fontTexture, AssetKey glyphs);
+void FontType_Unload(FontTypeIndex idx);
+FontRender FontType_AddStringRender(FontTypeIndex idx_ft, pk_cstr cstr);
+void FontType_RemoveStringRender(FontRender fr);
+
+#endif /* PKE_FONT_TYPE_HPP */