vn/code/vn_render.h

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2023-06-17 17:00:55 +00:00
/* date = April 26th 2023 11:04 pm */
#ifndef VN_RENDER_H
#define VN_RENDER_H
#define MAX_BOUND_TEXTURES 16
#define MAX_QUAD_COUNT 16*1024
#define ColorFromHex(Value) V4((((Value) >> 24) & 0xFF) / 255.0, (((Value) >> 16) & 0xFF) / 255.0, (((Value) >> 8) & 0xFF) / 255.0, (((Value) >> 0) & 0xFF) / 255.0)
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#define Brighten(Color, Amount) (Color*(Amount))
#define Darken(Color, Amount) (Color*(1.0/(Amount)))
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read_only v4 Color_Black = V4(0, 0, 0, 1);
read_only v4 Color_White = V4(1, 1, 1, 1);
read_only v4 Color_Grey = V4(0.5, 0.5, 0.5, 1);
read_only v4 Color_Red = V4(1, 0, 0, 1);
read_only v4 Color_Green = V4(0, 1, 0, 1);
read_only v4 Color_Blue = V4(0, 0, 1, 1);
read_only v4 Color_Yellow = V4(1, 1, 0, 1);
read_only v4 Color_Magenta = V4(1, 0, 1, 1);
read_only v4 Color_Cyan = V4(0, 1, 1, 1);
enum render_texture_format
{
Render_TextureFormat_R8,
Render_TextureFormat_RGB8,
Render_TextureFormat_RGBA8,
};
struct render_handle
{
union
{
u64 U64[4];
u32 U32[8];
};
};
enum render_command_type
{
Render_Command_render_command_clear,
Render_Command_render_command_quads,
Render_Command_render_command_clip,
};
struct render_command_clear
{
v3 Color;
};
struct render_command_quads
{
u64 QuadCount;
u64 QuadBufferIndex;
s32 TexturesUsed;
render_handle Textures[16];
};
struct render_command_clip
{
range2_r32 ClipRect;
};
struct render_command_header
{
render_command_type Type;
};
struct render_group
{
struct vn_render_commands *Commands;
render_command_header *CurrentCommand;
range2_r32 ClipStack[64];
s32 ClipStackUsed;
};
struct quad_vertex
{
v2 P;
v2 SourceP;
u32 TextureIndex;
u32 Color;
v2 ToCenter; // sixten: ToCenter = Center - P
v2 HalfSize;
r32 CornerRadius;
r32 EdgeSoftness;
r32 BorderThickness;
};
#endif //VN_RENDER_H