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Diffstat (limited to 'include/RSGL.h')
| -rw-r--r-- | include/RSGL.h | 1925 |
1 files changed, 0 insertions, 1925 deletions
diff --git a/include/RSGL.h b/include/RSGL.h deleted file mode 100644 index 3c28e44..0000000 --- a/include/RSGL.h +++ /dev/null @@ -1,1925 +0,0 @@ -/* -* -* Copyright (c) 2021-25 ColleagueRiley ColleagueRiley@gmail.com -* -* This software is provided 'as-is', without any express or implied -* warranty. In no event will the authors be held liable for any damages -* arising from the use of this software. -* -* Permission is granted to anyone to use this software for any purpose, -* including commercial applications, and to alter it and redistribute it -* freely, subject to the following restrictions: -* -* 1. The origin of this software must not be misrepresented; you must not -* claim that you wrote the original software. If you use this software -* in a product, an acknowledgment in the product documentation would be -* appreciated but is not required. -* 2. Altered source versions must be plainly marked as such, and must not be -* misrepresented as being the original software. -* 3. This notice may not be removed or altered from any source distribution. -* -* -*/ - -/* - define args - (MAKE SURE RSGL_IMPLEMENTATION is in exactly one header or you use -DRSGL_IMPLEMENTATION) - #define RSGL_IMPLEMENTATION - makes it so source code is included with header - - #define RSGL_RFONT - do include functions to help with integrating RFont and RSGL - #define RSGL_MAX_BATCHES [number of batches] - set max number of batches to be allocated - #define RSGL_MAX_VERTS [number of verts] - set max number of verts to be allocated (global, not per batch) -*/ -#include <stdint.h> -#ifndef RSGL_MAX_BATCHES -#define RSGL_MAX_BATCHES 2028 -#endif -#ifndef RSGL_MAX_VERTS -#define RSGL_MAX_VERTS 8192 -#endif - -#ifndef RSGL_MALLOC -#include <stdlib.h> -#define RSGL_MALLOC malloc -#define RSGL_REALLOC realloc -#define RSGL_FREE free -#endif - -#ifndef RSGL_SIN -#include <math.h> -#define RSGL_SIN sinf -#define RSGL_COS cosf -#endif - -#ifndef RSGL_UNUSED -#define RSGL_UNUSED(x) (void) (x); -#endif - -#ifndef RSGL_MEMCPY - #include <string.h> - #define RSGL_MEMCPY(dest, src, count) memcpy(dest, src, count) - #define RSGL_MEMSET(ptr, value, num) memset(ptr, value, num) -#endif - -#ifndef RSGL_H -#define RSGL_H -#ifndef RSGLDEF -#ifdef __APPLE__ -#define RSGLDEF extern inline -#else -#define RSGLDEF inline -#endif -#endif - -#ifndef RSGL_INT_DEFINED - #define RSGL_INT_DEFINED - #if defined(_MSC_VER) || defined(__SYMBIAN32__) - typedef unsigned char u8; - typedef signed char i8; - typedef unsigned short u16; - typedef signed short i16; - typedef unsigned int u32; - typedef signed int i32; - typedef unsigned long long u64; - typedef signed long long i64; - #else - #include <stdint.h> - - typedef uint8_t u8; - typedef int8_t i8; - typedef uint16_t u16; - typedef int16_t i16; - typedef uint32_t u32; - typedef int32_t i32; - typedef uint64_t u64; - typedef int64_t i64; - #endif -#endif - -#ifndef RSGL_BOOL_DEFINED -#define RSGL_BOOL_DEFINED - -#include <stdbool.h> -typedef bool RSGL_bool; -#endif - -#define RSGL_TRUE (RSGL_bool)1 -#define RSGL_FALSE (RSGL_bool)0 - -typedef enum RSGL_textureFormat { - RSGL_formatNone = 0, - RSGL_formatRGB, /*!< 8-bit RGB (3 channels) */ - RSGL_formatBGR, /*!< 8-bit BGR (3 channels) */ - RSGL_formatRGBA, /*!< 8-bit RGBA (4 channels) */ - RSGL_formatBGRA, /*!< 8-bit BGRA (4 channels) */ - RSGL_formatRed, /*!< 8-bit RED (1 channel) */ - RSGL_formatGrayscale, /*!< 8-bit grayscale (1 channel) */ - RSGL_formatGrayscaleAlpha, /*!< 8-bit grayscale alpha (1 channel) */ - RSGL_formatCount -} RSGL_textureFormat; - -typedef enum RSGL_textureDataType { - RSGL_textureDataInt = 0, - RSGL_textureDataFloat -} RSGL_textureDataType; - -typedef enum RSGL_textureFilter { - RSGL_filterNearest = 0, - RSGL_filterLinear -} RSGL_textureFilter; - -typedef struct RSGL_textureBlob { - void* data; /* input data */ - size_t width; /* width of the texture */ - size_t height; /* height of the texture */ - RSGL_textureDataType dataType; - RSGL_textureFormat dataFormat; /* format of the input data */ - RSGL_textureFormat textureFormat; /* final format for the texture */ - RSGL_textureFilter minFilter; /* filter used when rendering a surface smaller than the base texture */ - RSGL_textureFilter magFilter; /* filter used when rendering a surface bigger than the base texture */ -} RSGL_textureBlob; - -#ifndef RSGL_texture -#define RSGL_texture size_t -#endif - -#ifndef RSGL_framebuffer -#define RSGL_framebuffer size_t -#endif - -/* -******* -RSGL shapes -******* -*/ - -#ifndef RSGL_rect -typedef struct RSGL_rect { float x, y, w, h; } RSGL_rect; -#endif - -#define RSGL_RECT(x, y, w, h) (RSGL_rect){(float)x, (float)y, (float)w, (float)h} - -#ifndef RSGL_cube -typedef struct RSGL_cube { float x, y, z, w, h, l; } RSGL_cube; -#endif - -#define RSGL_CUBE(x, y, z, w, h, l) (RSGL_cube){(float)x, (float)y, (float)z, (float)w, (float)h, (float)l} - -#ifndef RSGL_vec2D -typedef struct RSGL_vec2D { float x, y; } RSGL_vec2D; -#endif -#define RSGL_VEC2D(x, y) (RSGL_vec2D){(float)x, (float)y} - -#ifndef RSGL_vec3D -typedef struct RSGL_vec3D { float x, y, z; } RSGL_vec3D; -#endif - -#define RSGL_VEC3D(x, y, z) (RSGL_vec3D){(float)x, (float)y, (float)z} - -#define RSGL_TRIANGLE(p1, p2, p3) (RSGL_vec3D[3]){p1, p2, p3} -#define RSGL_createTriangle(p1x, p1y, p1z, p2x, p2y, p2z, p3x, p3y, p3z) RSGL_TRIANGLE3D(RSGL_VEC3D(p1x, p1y, p1z), RSGL_VEC3D(p2x, p2y, p2z), RSGL_VEC3D(p3x, p3y, p3z)) - -/* -the color stucture is in -ABGR by default for performance reasons -(converting color to hex for example) -*/ -#ifndef RSGL_color -typedef struct RSGL_color { - u8 a, b, g, r; -} RSGL_color; -#endif - -#define RSGL_RGBA(r, g, b, a) ((RSGL_color){(u8)(a), (u8)(b), (u8)(g), (u8)(r)}) -#define RSGL_RGB(r, g, b) ((RSGL_color){255, (u8)(b), (u8)(g), (u8)(r)}) - -#define RSGL_COLOR_TO_HEX(color) ((u32)(color) & 0xFFFFFF00) -#define RSGL_RGB_TO_HEX(r, g, b, a) (RSGL_COLOR_TO_HEX(RSGL_RGBA(r, g, b, a))) -#define RSGL_RGBA_TO_HEX(r, g, b) (RSGL_COLOR_TO_HEX(RSGL_RGB(r, g, b, a))) - -/* -********************* -RSGL matrix math -********************* -*/ - -#ifndef RSGL_mat4 -typedef struct RSGL_mat4 { - float m[16]; -} RSGL_mat4; -#endif - -RSGLDEF RSGL_mat4 RSGL_mat4_loadIdentity(void); -RSGLDEF RSGL_mat4 RSGL_mat4_scale(float matrix[16], float x, float y, float z); -RSGLDEF RSGL_mat4 RSGL_mat4_rotate(float matrix[16], float angle, float x, float y, float z); -RSGLDEF RSGL_mat4 RSGL_mat4_translate(float matrix[16], float x, float y, float z); -RSGLDEF RSGL_mat4 RSGL_mat4_perspective(float matrix[16], float fovY, float aspect, float zNear, float zFar); -RSGLDEF RSGL_mat4 RSGL_mat4_ortho(float matrix[16], float left, float right, float bottom, float top, float znear, float zfar); -RSGLDEF RSGL_mat4 RSGL_mat4_lookAt(float matrix[16], float eyeX, float eyeY, float eyeZ, float targetX, float targetY, float targetZ, float upX, float upY, float upZ); - -RSGLDEF RSGL_mat4 RSGL_mat4_multiply(float left[16], float right[16]); - -RSGLDEF RSGL_vec3D RSGL_mat4_multiplyPoint(RSGL_mat4 matrix, RSGL_vec3D point); - -/* -******* -RSGL_perspective -******* -*/ - -typedef enum RSGL_projectionType { - RSGL_projectionOrtho2D = 0, - RSGL_projectionOrtho3D, - RSGL_projectionPerspective3D, -} RSGL_projectionType; - -typedef struct RSGL_projection2D { - RSGL_projectionType type; - u32 width; - u32 height; -} RSGL_projection2D; - -typedef struct RSGL_projection3D { - RSGL_projectionType type; - float fov; - float ratio; - float pNear; - float pFar; -} RSGL_projection3D; - -typedef union RSGL_projection { - RSGL_projectionType type; - RSGL_projection2D p2D; - RSGL_projection3D p3D; -} RSGL_projection; - -RSGLDEF RSGL_mat4 RSGL_projection_getMatrix(const RSGL_projection* projection); - -/* -********************* -RSGL renderer -********************* -*/ - -/* used internally for RSGL_deleteProgram */ -typedef enum RSGL_shaderType { - RSGL_shaderTypeNone = 0, - RSGL_shaderTypeStandard = 1, /* standard vertex+fragment shader */ - RSGL_shaderTypeCompute = 2, - RSGL_shaderTypeGeometry = 4, /* unimplemented as of now */ -} RSGL_shaderType; - -/* shader program and blob */ -typedef struct RSGL_programBlob { - const char* vertex; - size_t vertexLen; - const char* fragment; - size_t fragmentLen; -} RSGL_programBlob; - -typedef struct RSGL_programInfo { - size_t program; - size_t perspectiveView; - size_t model; - size_t vertexPosition; - size_t vertexTexCoord; - size_t vertexColor; - - RSGL_shaderType type; -} RSGL_programInfo; - -typedef struct RSGL_BATCH { - size_t start, len; /* when batch starts and it's length */ - size_t elmStart, elmCount; /* when element batch starts and it's length */ - u32 type; - RSGL_texture tex; - float lineWidth; - RSGL_mat4 matrix; -} RSGL_BATCH; /* batch data type for rendering */ - -typedef struct RSGL_renderData { - float* verts; - float* texCoords; - float* colors; - u16* elements; - size_t elements_count; - size_t len; /* number of verts */ - - RSGL_mat4 perspective; /* perspective matrix */ -} RSGL_renderData; - -typedef enum RSGL_bufferType { - RSGL_arrayBuffer = 0, - RSGL_elementArrayBuffer, - RSGL_shaderStorageBuffer, - RSGL_textureBuffer, - RSGL_uniformBuffer -} RSGL_bufferType; - -typedef struct RSGL_renderBuffers { - size_t vertex, color, texture, elements; - size_t maxVerts; - - RSGL_BATCH batches[RSGL_MAX_BATCHES]; - size_t batchCount; -} RSGL_renderBuffers; - -typedef struct RSGL_renderState { - float* gradient; /* does not allocate any memory */ - - RSGL_rect source; - RSGL_texture texture; - u32 gradient_len; - - RSGL_color color; - - RSGL_vec3D rotate; - RSGL_programInfo* program; - RSGL_renderBuffers* buffers; - - RSGL_vec3D center; - float lineWidth; - RSGL_mat4 modelMatrix; - RSGL_mat4 viewMatrix; - RSGL_mat4 perspectiveMatrix; - RSGL_bool forceBatch; - RSGL_bool overflow; - RSGL_framebuffer framebuffer; -} RSGL_renderState; - -typedef struct RSGL_renderPass { - RSGL_programInfo* program; - float* matrix; - RSGL_renderBuffers* buffers; - RSGL_framebuffer framebuffer; -} RSGL_renderPass; - -typedef struct RSGL_rendererProc { - size_t (*size)(void); /* get the size of the renderer's internal struct */ - RSGL_programBlob (*defaultBlob)(void* ctx); - void (*initPtr)(void* ctx, void* proc); /* init render backend */ - void (*freePtr)(void* ctx); /* free render backend */ - void (*render)(void* ctx, const RSGL_renderPass* pass); - void (*clear)(void* ctx, RSGL_framebuffer framebuffer, float r, float g, float b, float a); - void (*viewport)(void* ctx, i32 x, i32 y, i32 w, i32 h); - void (*setSurface)(void* ctx, void* surface); - RSGL_texture (*createTexture)(void* ctx, const RSGL_textureBlob* blob); - void (*copyToTexture)(void* ctx, RSGL_texture texture, size_t x, size_t y, const RSGL_textureBlob* blob); - void (*deleteTexture)(void* ctx, RSGL_texture tex); - void (*scissorStart)(void* ctx, float x, float y, float w, float h, float renderer_height); - void (*scissorEnd)(void* ctx); - RSGL_programInfo (*createProgram)(void* ctx, RSGL_programBlob* blob); - void (*deleteProgram)(void* ctx, const RSGL_programInfo* program); - size_t (*findShaderVariable)(void*, const RSGL_programInfo*, const char*, size_t); - void (*updateShaderVariable)(void*, const RSGL_programInfo*, size_t, const float[], u8); - RSGL_programInfo (*createComputeProgram)(void* ctx, const char* CShaderCode); - void (*dispatchComputeProgram)(void* ctx, const RSGL_programInfo* program, u32 groups_x, u32 groups_y, u32 groups_z); - void (*bindComputeTexture)(void* ctx, u32 texture, u8 format); - void (*createBuffer)(void* ctx, RSGL_bufferType type, size_t size, const void* data, size_t* buffer); - void (*updateBuffer)(void* ctx, RSGL_bufferType type, size_t buffer, void* data, size_t start, size_t len); - void (*deleteBuffer)(void* ctx, size_t buffer); - RSGL_framebuffer (*createFramebuffer)(void* ctx, size_t width, size_t height); - void (*attachFramebuffer)(void* ctx, RSGL_framebuffer fbo, RSGL_texture tex, u8 attachType, u8 mipLevel); - void (*deleteFramebuffer)(void* ctx, RSGL_framebuffer fbo); -} RSGL_rendererProc; - -typedef struct RSGL_renderer { - RSGL_renderData data; - RSGL_renderState state; - RSGL_rendererProc proc; - void* userPtr; - void* ctx; /* pointer for the renderer backend to store any internal data it wants/needs */ - - RSGL_texture defaultTexture; - RSGL_programInfo defaultProgram; - RSGL_mat4 defaultPerspectiveMatrix; - - float verts[RSGL_MAX_VERTS * 3]; - float texCoords[RSGL_MAX_VERTS * 2]; - float colors[RSGL_MAX_VERTS * 4]; - u16 elements[RSGL_MAX_VERTS * 6]; - RSGL_renderBuffers buffers; -} RSGL_renderer; - -RSGLDEF void RSGL_renderer_getRenderState(RSGL_renderer* renderer, RSGL_renderState* state); - -RSGLDEF size_t RSGL_renderer_size(RSGL_renderer* renderer); - -RSGLDEF void RSGL_renderer_initPtr(RSGL_rendererProc proc, - void* loader, /* opengl prozc address ex. wglProcAddress */ - void* ptr, /* pointer to allocate backend data */ - RSGL_renderer* renderer - ); - -RSGLDEF RSGL_renderer* RSGL_renderer_init(RSGL_rendererProc proc, void* loader); -RSGLDEF void RSGL_renderer_updateSize(RSGL_renderer* renderer, size_t width, size_t height); -RSGLDEF void RSGL_renderer_freePtr(RSGL_renderer* renderer); - -RSGLDEF void RSGL_renderer_setSurface(RSGL_renderer* renderer, void* surface); - -RSGLDEF void RSGL_renderer_createBuffer(RSGL_renderer* renderer, RSGL_bufferType type, size_t size, const void* data, size_t* buffer); -RSGLDEF void RSGL_renderer_updateBuffer(RSGL_renderer* renderer, RSGL_bufferType type, size_t buffer, void* data, size_t start, size_t len); -RSGLDEF void RSGL_renderer_deleteBuffer(RSGL_renderer* renderer, size_t buffer); - -RSGLDEF void RSGL_renderer_createRenderBuffers(RSGL_renderer* renderer, size_t size, RSGL_renderBuffers* buffers); -RSGLDEF void RSGL_renderer_deleteRenderBuffers(RSGL_renderer* renderer, RSGL_renderBuffers* buffers); - -RSGLDEF void RSGL_renderer_render(RSGL_renderer* renderer); /* draw current batch */ -RSGLDEF void RSGL_renderer_updateRenderBuffers(RSGL_renderer* renderer); -RSGLDEF void RSGL_renderer_renderBuffers(RSGL_renderer* renderer); - -RSGLDEF void RSGL_renderer_free(RSGL_renderer* renderer); - -RSGLDEF void RSGL_renderer_setRotate(RSGL_renderer* renderer, RSGL_vec3D rotate); /* apply rotation to drawing */ -RSGLDEF void RSGL_renderer_setTexture(RSGL_renderer* renderer, RSGL_texture texture); /* apply texture to drawing */ -RSGLDEF void RSGL_renderer_setTextureSource(RSGL_renderer* renderer, RSGL_texture texture, RSGL_rect rect); /* apply texture to drawing (limited to the given rect) */ -RSGLDEF void RSGL_renderer_setColor(RSGL_renderer* renderer, RSGL_color color); /* apply color to drawing */ -RSGLDEF void RSGL_renderer_setProgram(RSGL_renderer* renderer, RSGL_programInfo* program); /* use shader program for drawing */ -RSGLDEF void RSGL_renderer_setFramebuffer(RSGL_renderer* renderer, RSGL_framebuffer framebuffer); -RSGLDEF void RSGL_renderer_setRenderBuffers(RSGL_renderer* renderer, RSGL_renderBuffers* buffers); -RSGLDEF void RSGL_renderer_setGradient(RSGL_renderer* renderer, - float* gradient, /* array of gradients */ - size_t len /* length of array */ - ); /* apply gradient to drawing, based on color list*/ -RSGLDEF void RSGL_renderer_setCenter(RSGL_renderer* renderer, RSGL_vec3D center); /* the center of the drawing (or shape), this is used for rotation */ -RSGLDEF void RSGL_renderer_setOverflow(RSGL_renderer* renderer, RSGL_bool overflow); -/* args clear after a draw function by default, this toggles that */ -RSGLDEF void RSGL_renderer_clearArgs(RSGL_renderer* renderer); /* clears the args */ - -RSGLDEF RSGL_mat4 RSGL_renderer_initDrawMatrix(RSGL_renderer* renderer, RSGL_vec3D center); - -/* renders the current batches */ -RSGLDEF void RSGL_renderer_clear(RSGL_renderer* renderer, RSGL_color color); -RSGLDEF void RSGL_renderer_viewport(RSGL_renderer* renderer, RSGL_rect rect); -/* create a texture based on a given bitmap, this must be freed later using RSGL_deleteTexture or opengl*/ -RSGLDEF RSGL_texture RSGL_renderer_createTexture(RSGL_renderer* renderer, const RSGL_textureBlob* blob); -/* updates an existing texture wiht a new bitmap */ -RSGLDEF void RSGL_renderer_copyToTexture(RSGL_renderer* renderer, RSGL_texture texture, size_t x, size_t y, const RSGL_textureBlob* blob); -/* delete a texture */ -RSGLDEF void RSGL_renderer_deleteTexture(RSGL_renderer* renderer, RSGL_texture tex); -RSGLDEF RSGL_framebuffer RSGL_renderer_createFramebuffer(RSGL_renderer* renderer, size_t width, size_t height); -RSGLDEF void RSGL_renderer_attachFramebuffer(RSGL_renderer* renderer, RSGL_framebuffer fbo, RSGL_texture tex, u8 attachType, u8 mipLevel); -RSGLDEF void RSGL_renderer_deleteFramebuffer(RSGL_renderer* renderer, RSGL_framebuffer fbo); -/* starts scissoring */ -RSGLDEF void RSGL_renderer_scissorStart(RSGL_renderer* renderer, RSGL_rect scissor, i32 height); -/* stops scissoring */ -RSGLDEF void RSGL_renderer_scissorEnd(RSGL_renderer* renderer); -/* custom shader program */ -RSGLDEF RSGL_programBlob RSGL_renderer_defaultBlob(RSGL_renderer* ctx); -RSGLDEF RSGL_programInfo RSGL_renderer_createProgram(RSGL_renderer* renderer, RSGL_programBlob* blob); -RSGLDEF void RSGL_renderer_deleteProgram(RSGL_renderer* renderer, const RSGL_programInfo* program); -RSGLDEF size_t RSGL_renderer_findShaderVariable(RSGL_renderer* renderer, const RSGL_programInfo* program, const char* var, size_t len); -RSGLDEF void RSGL_renderer_updateShaderVariable(RSGL_renderer* renderer, const RSGL_programInfo* program, size_t var, const float value[], u8 len); -RSGLDEF void RSGL_renderer_forceBatch(RSGL_renderer* renderer); - -RSGLDEF void RSGL_renderer_setPerspectiveMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix); -RSGLDEF void RSGL_renderer_setDefaultPerspectiveMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix); - -RSGLDEF void RSGL_renderer_setModelMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix); -RSGLDEF void RSGL_renderer_resetModelMatrix(RSGL_renderer* renderer); - -RSGLDEF RSGL_programInfo RSGL_renderer_createComputeProgram(RSGL_renderer* renderer, const char *CShaderCode); -RSGLDEF void RSGL_renderer_dispatchComputeProgram(RSGL_renderer* renderer, const RSGL_programInfo* program, u32 groups_x, u32 groups_y, u32 groups_z); -RSGLDEF void RSGL_renderer_bindComputeTexture(RSGL_renderer* renderer, u32 texture, u8 format); - -/* -******* -RSGL_draw low level -******* -RSGL_drawRawVerts is a function used internally by RSGL, but you can use it yourself -RSGL_drawRawVerts batches a given set of points based on th data to be rendered -*/ - -typedef enum RSGL_drawType { - RSGL_TRIANGLES = 0, - RSGL_POINTS = 1, - RSGL_LINES = 2 -} RSGL_drawType; - -typedef struct RSGL_rawVerts { - RSGL_drawType type; - float* verts; - float* texCoords; - u16* elements; - size_t elmCount; - size_t vert_count; -} RSGL_rawVerts; - -RSGLDEF i32 RSGL_drawRawVerts(RSGL_renderer* renderer, const RSGL_rawVerts* data); - -/* - ****** - * Rfont_RSGL RFont integration * - ****** - * */ - -#ifdef RSGL_RFONT -RSGLDEF struct RFont_renderer_proc RFont_RSGL_renderer_proc(void); - -RSGLDEF struct RFont_renderer* RFont_RSGL_renderer_init(struct RSGL_renderer* ptr); -RSGLDEF void RFont_RSGL_renderer_initPtr(struct RSGL_renderer* ptr, struct RFont_renderer* renderer); -RSGLDEF void RFont_RSGL_renderer_free(struct RFont_renderer* renderer); -#endif - -#endif /* ndef RSGL_H */ - -/* -******* -RSGL high level API -******* -*/ - -#if !defined(RSGL_NO_HIGHLEVEL) && !defined(RSGL_HIGHLEVEL_H) - - -/* -******* -RSGL_draw primitives -******* -*/ - -/* 2D shape drawing */ -/* in the function names, F means float */ - -RSGLDEF i32 RSGL_drawPoint(RSGL_renderer* renderer, RSGL_vec2D p); - -RSGLDEF i32 RSGL_drawRect(RSGL_renderer* renderer, RSGL_rect r); - -RSGLDEF i32 RSGL_drawRoundRect(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding); - -RSGLDEF i32 RSGL_drawPolygon(RSGL_renderer* renderer, RSGL_rect r, u32 sides); - -RSGLDEF i32 RSGL_drawArc(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc); - -RSGLDEF i32 RSGL_drawOval(RSGL_renderer* renderer, RSGL_rect o); - -RSGLDEF i32 RSGL_drawLine(RSGL_renderer* renderer, RSGL_vec2D p1, RSGL_vec2D p2, u32 thickness); - -/* 3D objects */ -RSGLDEF i32 RSGL_drawTriangle(RSGL_renderer* renderer, RSGL_vec3D[3]); -RSGLDEF i32 RSGL_drawPoint3D(RSGL_renderer* renderer, RSGL_vec3D p); -RSGLDEF i32 RSGL_drawLine3D(RSGL_renderer* renderer, RSGL_vec3D p1, RSGL_vec3D p2, u32 thickness); -RSGLDEF i32 RSGL_drawCube(RSGL_renderer* renderer, RSGL_cube cube); - -/* 2D outlines */ - -/* thickness means the thickness of the line */ -RSGLDEF i32 RSGL_drawTriangleOutline(RSGL_renderer* renderer, RSGL_vec3D triangle[3], u32 thickness); - -RSGLDEF i32 RSGL_drawRectOutline(RSGL_renderer* renderer, RSGL_rect r, u32 thickness); -RSGLDEF i32 RSGL_drawRectOutline(RSGL_renderer* renderer, RSGL_rect r, u32 thickness); - -RSGLDEF i32 RSGL_drawRoundRectOutline(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding, u32 thickness); -RSGLDEF i32 RSGL_drawRoundRectOutline(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding, u32 thickness); - -RSGLDEF i32 RSGL_drawPolygonOutline(RSGL_renderer* renderer, RSGL_rect r, u32 sides, u32 thickness); -RSGLDEF i32 RSGL_drawPolygonOutline(RSGL_renderer* renderer, RSGL_rect r, u32 sides, u32 thickness); - -RSGLDEF i32 RSGL_drawArcOutline(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc, u32 thickness); -RSGLDEF i32 RSGL_drawArcOutline(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc, u32 thickness); - -RSGLDEF i32 RSGL_drawOvalOutline(RSGL_renderer* renderer, RSGL_rect o, u32 thickness); - -/* -******* -RSGL_view -******* -*/ - -typedef enum RSGL_viewType { - RSGL_viewTypeNone = 0, - RSGL_viewType2D, - RSGL_viewType3D, -} RSGL_viewType; - -typedef struct RSGL_view2D { - RSGL_viewType type; - RSGL_vec3D offset; - RSGL_vec3D target; - float rotation; - float zoom; -} RSGL_view2D; - -/* RSGL translation */ -typedef struct RSGL_view3D { - RSGL_viewType type; - RSGL_vec3D pos; - RSGL_vec3D target; - RSGL_vec3D up; -} RSGL_view3D; - -typedef union RSGL_view { - RSGL_viewType type; - RSGL_view2D view2D; - RSGL_view3D view3D; -} RSGL_view; - -RSGLDEF RSGL_mat4 RSGL_view_getMatrix(const RSGL_view* view); - -#endif /* ndef RSGL_HIGHLEVEL_H && ndef RSGL_NO_HIGHLEVEL */ - -#ifdef RSGL_IMPLEMENTATION - -#ifndef M_PI - #define M_PI 3.14159265358979323846f -#endif -#ifndef DEG2RAD - #define DEG2RAD (float)(M_PI / 180.0f) -#endif -#ifndef RAD2DEG - #define RAD2DEG (float)(180.0f / M_PI) -#endif - -#define RSGL_GET_MATRIX_X(x, y, z) (float)(matrix.m[0] * x + matrix.m[4] * y + matrix.m[8] * z + matrix.m[12]) -#define RSGL_GET_MATRIX_Y(x, y, z) (float)(matrix.m[1] * x + matrix.m[5] * y + matrix.m[9] * z + matrix.m[13]) -#define RSGL_GET_MATRIX_Z(x, y, z) (float)(matrix.m[2] * x + matrix.m[6] * y + matrix.m[10] * z + matrix.m[14]) -#define RSGL_GET_MATRIX_W(x, y, z) (float)(matrix.m[2] * x + matrix.m[7] * y + matrix.m[11] * z + matrix.m[15]) - -#define RSGL_GET_MATRIX_POINT(x, y, z) \ - RSGL_GET_MATRIX_X((x), (y), (z)) / RSGL_GET_MATRIX_W((x), (y), (z)), \ - RSGL_GET_MATRIX_Y((x), (y), (z)) / RSGL_GET_MATRIX_W((x), (y), (z)), \ - RSGL_GET_MATRIX_Z((x), (y), (z)) / RSGL_GET_MATRIX_W((x), (y), (z)) - -#define RSGL_GET_MATRIX_POINTW(x, y, z) \ - RSGL_GET_MATRIX_X(x, y, z), \ - RSGL_GET_MATRIX_Y(x, y, z), \ - RSGL_GET_MATRIX_Z(x, y, z), \ - RSGL_GET_MATRIX_W(x, y, z) \ - -void RSGL_renderer_forceBatch(RSGL_renderer* renderer) { - renderer->state.forceBatch = RSGL_TRUE; -} - -void RSGL_renderer_setPerspectiveMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix) { - renderer->state.perspectiveMatrix = matrix; -} - -void RSGL_renderer_setDefaultPerspectiveMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix) { - renderer->defaultPerspectiveMatrix = matrix; -} - -void RSGL_renderer_setViewMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix) { - renderer->state.viewMatrix = matrix; -} -void RSGL_renderer_resetViewMatrix(RSGL_renderer* renderer) { - RSGL_renderer_setViewMatrix(renderer, RSGL_mat4_loadIdentity()); -} - -void RSGL_renderer_setModelMatrix(RSGL_renderer* renderer, RSGL_mat4 matrix) { - renderer->state.modelMatrix = matrix; - renderer->state.forceBatch = RSGL_TRUE; -} - - -void RSGL_renderer_resetModelMatrix(RSGL_renderer* renderer) { - RSGL_renderer_setModelMatrix(renderer, RSGL_mat4_loadIdentity()); -} - -void RSGL_renderer_getRenderState(RSGL_renderer* renderer, RSGL_renderState* state) { - if (state) *state = renderer->state; -} - -void RSGL_renderer_setOverflow(RSGL_renderer* renderer, RSGL_bool overflow) { - renderer->state.overflow = overflow; -} -#include <stdio.h> -i32 RSGL_drawRawVerts(RSGL_renderer* renderer, const RSGL_rawVerts* data) { - if ((renderer->state.buffers->batchCount + 1 >= RSGL_MAX_BATCHES || renderer->data.len + data->vert_count >= renderer->state.buffers->maxVerts) && renderer->state.overflow) { - RSGL_renderer_render(renderer); - } - - RSGL_BATCH* batch = NULL; - RSGL_color c = renderer->state.color; - - if ( - renderer->state.buffers->batchCount == 0 || - renderer->state.buffers->batches[renderer->state.buffers->batchCount - 1].tex != renderer->state.texture || - renderer->state.buffers->batches[renderer->state.buffers->batchCount - 1].lineWidth != renderer->state.lineWidth || - renderer->state.buffers->batches[renderer->state.buffers->batchCount - 1].type != data->type || - renderer->state.forceBatch - ) { - renderer->state.forceBatch = RSGL_FALSE; - renderer->state.buffers->batchCount += 1; - - batch = &renderer->state.buffers->batches[renderer->state.buffers->batchCount - 1]; - batch->start = renderer->data.len; - batch->len = 0; - batch->elmStart = renderer->data.elements_count; - batch->elmCount = 0; - batch->type = data->type; - batch->tex = renderer->state.texture; - batch->lineWidth = renderer->state.lineWidth; - batch->matrix = renderer->state.modelMatrix; - } else { - batch = &renderer->state.buffers->batches[renderer->state.buffers->batchCount - 1]; - } - - if (batch == NULL) { - return -1; - } - - batch->elmCount += data->elmCount; - batch->len += data->vert_count; - - RSGL_MEMCPY(&renderer->data.verts[renderer->data.len * 3], data->verts, data->vert_count * sizeof(float) * 3); - RSGL_MEMCPY(&renderer->data.texCoords[renderer->data.len * 2], data->texCoords, data->vert_count * sizeof(float) * 2); - - size_t i; - for (i = 0; i < data->elmCount; i++) { - size_t index = renderer->data.elements_count + i; - u16 elm = data->elements[i] + (u16)renderer->data.len; - renderer->data.elements[index] = elm; - } - - renderer->data.elements_count += data->elmCount; - - float color[4] = {c.r / 255.0f, c.g / 255.0f, c.b / 255.0f, c.a / 255.0f}; - - if (renderer->state.gradient_len && renderer->state.gradient && (i64)(data->vert_count - 1) > 0) { - RSGL_MEMCPY(&renderer->data.colors[renderer->data.len * 4], color, sizeof(float) * 4); - RSGL_MEMCPY(&renderer->data.colors[renderer->data.len * 4 + 4], renderer->state.gradient, (data->vert_count - 1) * sizeof(float) * 4); - } - else { - size_t i; - for (i = 0; i < data->vert_count * 4; i += 4) - RSGL_MEMCPY(&renderer->data.colors[(renderer->data.len * 4) + i], color, sizeof(float) * 4); - } - - renderer->data.len += data->vert_count; - return renderer->state.buffers->batchCount - 1; -} - -/* -********************* -RSGL_GRAPHICS_CONTEXT -********************* -*/ - -void RSGL_renderer_setSurface(RSGL_renderer* renderer, void* surface) { - renderer->proc.setSurface(renderer->ctx, surface); -} - -void RSGL_renderer_createBuffer(RSGL_renderer* renderer, RSGL_bufferType type, size_t size, const void* data, size_t* buffer) { - if (renderer->proc.createBuffer) { - renderer->proc.createBuffer(renderer->ctx, type, size, data, buffer); - } -} - -void RSGL_renderer_deleteRenderBuffers(RSGL_renderer* renderer, RSGL_renderBuffers* buffers) { - RSGL_renderer_deleteBuffer(renderer, buffers->elements); - RSGL_renderer_deleteBuffer(renderer, buffers->vertex); - RSGL_renderer_deleteBuffer(renderer, buffers->color); - RSGL_renderer_deleteBuffer(renderer, buffers->texture); -} - -void RSGL_renderer_createRenderBuffers(RSGL_renderer* renderer, size_t size, RSGL_renderBuffers* buffers) { - buffers->maxVerts = size; - renderer->proc.createBuffer(renderer->ctx, RSGL_arrayBuffer, size * 3 * sizeof(float), NULL, &buffers->vertex); - renderer->proc.createBuffer(renderer->ctx, RSGL_arrayBuffer, size * 4 * sizeof(float), NULL, &buffers->color); - renderer->proc.createBuffer(renderer->ctx, RSGL_arrayBuffer, size * 2 * sizeof(float), NULL, &buffers->texture); - renderer->proc.createBuffer(renderer->ctx, RSGL_elementArrayBuffer, size * 6 * sizeof(u16), NULL, &buffers->elements); -} - -void RSGL_renderer_updateBuffer(RSGL_renderer* renderer, RSGL_bufferType type, size_t buffer, void* data, size_t start, size_t len) { - if (renderer->proc.updateBuffer) - renderer->proc.updateBuffer(renderer->ctx, type, buffer, data, start, len); -} - -void RSGL_renderer_deleteBuffer(RSGL_renderer* renderer, size_t buffer) { - if (renderer->proc.deleteBuffer) - renderer->proc.deleteBuffer(renderer->ctx, buffer); -} - -void RSGL_renderer_updateRenderBuffers(RSGL_renderer* renderer) { - RSGL_renderer_updateBuffer(renderer, RSGL_arrayBuffer, renderer->state.buffers->vertex, renderer->data.verts, 0, renderer->data.len * 3 * sizeof(float)); - RSGL_renderer_updateBuffer(renderer, RSGL_arrayBuffer, renderer->state.buffers->color, renderer->data.colors, 0, renderer->data.len * 4 * sizeof(float)); - RSGL_renderer_updateBuffer(renderer, RSGL_arrayBuffer, renderer->state.buffers->texture, renderer->data.texCoords, 0, renderer->data.len * 2 * sizeof(float)); - RSGL_renderer_updateBuffer(renderer, RSGL_elementArrayBuffer, renderer->state.buffers->elements, renderer->data.elements, 0, renderer->data.elements_count * sizeof(u16)); -} - -void RSGL_renderer_renderBuffers(RSGL_renderer* renderer) { - RSGL_mat4 matrix = RSGL_mat4_multiply(renderer->defaultPerspectiveMatrix.m, renderer->state.perspectiveMatrix.m); - matrix = RSGL_mat4_multiply(matrix.m, renderer->state.viewMatrix.m); - - - RSGL_renderPass pass; - pass.program = renderer->state.program; - pass.matrix = matrix.m; - pass.buffers = renderer->state.buffers; - pass.framebuffer = renderer->state.framebuffer; - - if (renderer->proc.render) - renderer->proc.render(renderer->ctx, &pass); - - renderer->data.len = 0; - renderer->data.elements_count = 0; -} - -void RSGL_renderer_render(RSGL_renderer* renderer) { - if (renderer->data.len && renderer->state.buffers->batchCount) { - RSGL_renderer_updateRenderBuffers(renderer); - } - - RSGL_renderer_renderBuffers(renderer); - - renderer->state.buffers->batchCount = 0; -} - -size_t RSGL_renderer_size(RSGL_renderer* renderer) { - if (renderer->proc.size) return renderer->proc.size(); - return 0; -} - -void RSGL_renderer_initPtr(RSGL_rendererProc proc, void* loader, void* data, RSGL_renderer* renderer) { - renderer->ctx = data; - renderer->proc = proc; - RSGL_renderer_clearArgs(renderer); - renderer->state.color = RSGL_RGBA(0, 0, 0, 255); - - renderer->state.modelMatrix = RSGL_mat4_loadIdentity(); - renderer->data.verts = renderer->verts; - renderer->data.texCoords = renderer->texCoords; - renderer->data.elements = renderer->elements; - renderer->data.colors = renderer->colors; - renderer->data.len = 0; - renderer->data.elements_count = 0; - - if (renderer->proc.initPtr) - renderer->proc.initPtr(renderer->ctx, loader); - - RSGL_renderer_setFramebuffer(renderer, 0); - - RSGL_programBlob pBlob = RSGL_renderer_defaultBlob(renderer); - renderer->defaultProgram = RSGL_renderer_createProgram(renderer, &pBlob); - RSGL_renderer_setProgram(renderer, &renderer->defaultProgram); - - u8 white[4] = {255, 255, 255, 255}; - RSGL_textureBlob blob; - blob.data = white; - blob.width = 1; - blob.height = 1; - blob.dataType = RSGL_textureDataInt; - blob.dataFormat = RSGL_formatRGBA; - blob.textureFormat = RSGL_formatRGBA; - renderer->defaultTexture = RSGL_renderer_createTexture(renderer, &blob); - - RSGL_renderer_setTexture(renderer, renderer->defaultTexture); - - RSGL_renderer_createRenderBuffers(renderer, RSGL_MAX_VERTS, &renderer->buffers); - renderer->buffers.batchCount = 0; - renderer->state.buffers = &renderer->buffers; - - RSGL_renderer_setModelMatrix(renderer, RSGL_mat4_loadIdentity()); - RSGL_renderer_resetViewMatrix(renderer); - RSGL_renderer_setPerspectiveMatrix(renderer, RSGL_mat4_loadIdentity()); -} - - -RSGL_renderer* RSGL_renderer_init(RSGL_rendererProc proc, void* loader) { - RSGL_renderer* renderer = (RSGL_renderer*)RSGL_MALLOC(sizeof(RSGL_renderer)); - void* data = RSGL_MALLOC(proc.size()); - RSGL_renderer_initPtr(proc, loader, data, renderer); - return renderer; -} - -void RSGL_renderer_freePtr(RSGL_renderer* renderer) { - RSGL_renderer_deleteRenderBuffers(renderer, &renderer->buffers); - - if (renderer->proc.freePtr) - renderer->proc.freePtr(renderer->ctx); - - renderer->state.buffers->batchCount = 0; - renderer->data.len = 0; - renderer->data.elements_count = 0; -} - -void RSGL_renderer_free(RSGL_renderer* renderer) { - RSGL_renderer_freePtr(renderer); - if (renderer->ctx) - RSGL_FREE(renderer->ctx); - RSGL_FREE(renderer); -} - -void RSGL_renderer_clear(RSGL_renderer* renderer, RSGL_color color) { - if (renderer->proc.clear) - renderer->proc.clear(renderer->ctx, renderer->state.framebuffer, ((float)color.r) / 255.0f, ((float)color.g) / 255.0f, ((float)color.b) / 255.0f, ((float)color.a) / 255.0f); -} -void RSGL_renderer_viewport(RSGL_renderer* renderer, RSGL_rect rect) { renderer->proc.viewport(renderer->ctx, rect.x, rect.y, rect.w, rect.h); } -RSGL_texture RSGL_renderer_createTexture(RSGL_renderer* renderer, const RSGL_textureBlob* blob) { - RSGL_texture tex = 0; - if (renderer->proc.createTexture) tex = renderer->proc.createTexture(renderer->ctx, blob); - return tex; -} -void RSGL_renderer_copyToTexture(RSGL_renderer* renderer, RSGL_texture texture, size_t x, size_t y, const RSGL_textureBlob* blob) { - return renderer->proc.copyToTexture(renderer->ctx, texture, x, y, blob); -} -void RSGL_renderer_deleteTexture(RSGL_renderer* renderer, RSGL_texture tex) { renderer->proc.deleteTexture(renderer->ctx, tex); } -void RSGL_renderer_scissorStart(RSGL_renderer* renderer, RSGL_rect scissor, i32 height) { - renderer->proc.scissorStart(renderer->ctx, scissor.x, scissor.y, scissor.w, scissor.h, height); -} - -RSGL_framebuffer RSGL_renderer_createFramebuffer(RSGL_renderer* renderer, size_t width, size_t height) { - RSGL_framebuffer framebuffer = 0; - if (renderer->proc.createFramebuffer) { - framebuffer = renderer->proc.createFramebuffer(renderer->ctx, width, height); - } - return framebuffer; -} - -void RSGL_renderer_attachFramebuffer(RSGL_renderer* renderer, RSGL_framebuffer fbo, RSGL_texture tex, u8 attachType, u8 mipLevel) { - if (renderer->proc.attachFramebuffer) - renderer->proc.attachFramebuffer(renderer->ctx, fbo, tex, attachType, mipLevel); -} - -void RSGL_renderer_deleteFramebuffer(RSGL_renderer* renderer, RSGL_framebuffer fbo) { - if (renderer->proc.deleteFramebuffer) - renderer->proc.deleteFramebuffer(renderer->ctx, fbo); -} - -void RSGL_renderer_scissorEnd(RSGL_renderer* renderer) { - renderer->proc.scissorEnd(renderer->ctx); -} -RSGL_programBlob RSGL_renderer_defaultBlob(RSGL_renderer* renderer) { - RSGL_programBlob blob; - RSGL_MEMSET(&blob, 0, sizeof(blob)); - - if (renderer->proc.defaultBlob) { - blob = renderer->proc.defaultBlob(renderer); - } - - return blob; -} -RSGL_programInfo RSGL_renderer_createProgram(RSGL_renderer* renderer, RSGL_programBlob* blob) { - RSGL_programInfo info; - RSGL_MEMSET(&info, 0, sizeof(info)); - - if (blob->fragment == NULL || blob->vertex == NULL) { - RSGL_programBlob pBlob = RSGL_renderer_defaultBlob(renderer); - renderer->defaultProgram = RSGL_renderer_createProgram(renderer, &pBlob); - - if (blob->vertex == NULL) { - blob->vertex = pBlob.vertex; - blob->vertexLen = pBlob.vertexLen; - } - - if (blob->fragment == NULL) { - blob->fragment = pBlob.fragment; - blob->fragmentLen = pBlob.fragmentLen; - } - } - - if (renderer->proc.createProgram) { - info = renderer->proc.createProgram(renderer->ctx, blob); - } - - return info; -} -void RSGL_renderer_deleteProgram(RSGL_renderer* renderer, const RSGL_programInfo* program) { return renderer->proc.deleteProgram(renderer->ctx, program); } - -size_t RSGL_renderer_findShaderVariable(RSGL_renderer* renderer, const RSGL_programInfo* program, const char* var, size_t len) { - return renderer->proc.findShaderVariable(renderer->ctx, program, var, len); -} - -void RSGL_renderer_updateShaderVariable(RSGL_renderer* renderer, const RSGL_programInfo* program, size_t var, const float value[], u8 len) { - if (renderer->proc.updateShaderVariable) { - renderer->proc.updateShaderVariable(renderer->ctx, program, var, value, len); - } -} - -RSGL_programInfo RSGL_renderer_createComputeProgram(RSGL_renderer* renderer, const char* CShaderCode) { - return renderer->proc.createComputeProgram(renderer->ctx, CShaderCode); -} - -void RSGL_renderer_dispatchComputeProgram(RSGL_renderer* renderer, const RSGL_programInfo* program, u32 groups_x, u32 groups_y, u32 groups_z) { - renderer->proc.dispatchComputeProgram(renderer->ctx, program, groups_x, groups_y, groups_z); -} - -void RSGL_renderer_bindComputeTexture(RSGL_renderer* renderer, u32 texture, u8 format) { - renderer->proc.bindComputeTexture(renderer->ctx, texture, format); -} - -void RSGL_renderer_updateSize(RSGL_renderer* renderer, size_t width, size_t height) { - RSGL_projection projection; - projection.p2D.type = RSGL_projectionOrtho2D; - projection.p2D.width = width; - projection.p2D.height = height; - - RSGL_mat4 matrix = RSGL_projection_getMatrix(&projection); - RSGL_renderer_setDefaultPerspectiveMatrix(renderer, matrix); -} - -void RSGL_renderer_setRotate(RSGL_renderer* renderer, RSGL_vec3D rotate){ - renderer->state.rotate = RSGL_VEC3D(rotate.x * DEG2RAD, rotate.y * DEG2RAD, rotate.z * DEG2RAD); -} -void RSGL_renderer_setTexture(RSGL_renderer* renderer, RSGL_texture texture) { - if (texture == 0) - renderer->state.texture = renderer->defaultTexture; - else - renderer->state.texture = texture; - - renderer->state.source = RSGL_RECT(0, 0, 1, 1); -} - -void RSGL_renderer_setTextureSource(RSGL_renderer* renderer, RSGL_texture texture, RSGL_rect rect) { - RSGL_renderer_setTexture(renderer, texture); - renderer->state.source = rect; -} - -void RSGL_renderer_setColor(RSGL_renderer* renderer, RSGL_color color) { - renderer->state.color = color; -} - -void RSGL_renderer_setRenderBuffers(RSGL_renderer* renderer, RSGL_renderBuffers* buffers) { - if (buffers == NULL) - renderer->state.buffers = &renderer->buffers; - else - renderer->state.buffers = buffers; -} - -void RSGL_renderer_setProgram(RSGL_renderer* renderer, RSGL_programInfo* program) { - if (program == NULL) - renderer->state.program = &renderer->defaultProgram; - else - renderer->state.program = program; -} - -void RSGL_renderer_setFramebuffer(RSGL_renderer* renderer, RSGL_framebuffer framebuffer) { - renderer->state.framebuffer = framebuffer; -} - -void RSGL_renderer_setGradient(RSGL_renderer* renderer, float gradient[], size_t len) { - renderer->state.gradient_len = len; - renderer->state.gradient = gradient; -} -void RSGL_renderer_setCenter(RSGL_renderer* renderer, RSGL_vec3D center) { - renderer->state.center = center; -} - -RSGL_mat4 RSGL_renderer_initDrawMatrix(RSGL_renderer* renderer, RSGL_vec3D center) { - RSGL_mat4 matrix = RSGL_mat4_loadIdentity(); - - if (renderer->state.rotate.x || renderer->state.rotate.y || renderer->state.rotate.z) { - if (renderer->state.center.x != -1 && renderer->state.center.y != -1 && renderer->state.center.z != -1) - center = renderer->state.center; - - matrix = RSGL_mat4_translate(matrix.m, center.x, center.y, center.z); - matrix = RSGL_mat4_rotate(matrix.m, renderer->state.rotate.z, 0, 0, 1); - matrix = RSGL_mat4_rotate(matrix.m, renderer->state.rotate.y, 0, 1, 0); - matrix = RSGL_mat4_rotate(matrix.m, renderer->state.rotate.x, 1, 0, 0); - matrix = RSGL_mat4_translate(matrix.m, -center.x, -center.y, -center.z); - } - - return matrix; -} - -void RSGL_renderer_clearArgs(RSGL_renderer* renderer) { - RSGL_MEMSET(&renderer->state, 0, sizeof(renderer->state)); - renderer->state.center = RSGL_VEC3D(-1, -1, -1); - renderer->state.overflow = RSGL_TRUE; -} - -/* -**** -RFont_RSGL integration -**** -*/ - -#ifdef RSGL_RFONT - -#ifndef RFONT_H - -#ifdef RSGL_INT_DEFINED - #ifndef RFONT_INT_DEFINED - #define RFONT_INT_DEFINED - #endif -#endif - -#include "RFont.h" -#endif - -struct RFont_renderer* RFont_RSGL_renderer_init(struct RSGL_renderer* ptr) { - RFont_renderer* renderer = (RFont_renderer*)RFONT_MALLOC(sizeof(RFont_renderer)); - RFont_renderer_initPtr(RFont_RSGL_renderer_proc(), ptr, renderer); - return renderer; -} -void RFont_RSGL_renderer_initPtr(struct RSGL_renderer* ptr, struct RFont_renderer* renderer) { RFont_renderer_initPtr(RFont_RSGL_renderer_proc(), ptr, renderer); } - -void RFont_RSGL_renderer_free(struct RFont_renderer* renderer) { - RFONT_FREE(renderer); -} - -void RFont_RSGL_render_text(RSGL_renderer* renderer, const RFont_render_data* src) { - RSGL_texture save = renderer->state.texture; - RSGL_renderer_setTexture(renderer, src->atlas); - - RSGL_rawVerts data; - data.type = RSGL_TRIANGLES; - data.verts = src->verts; - data.texCoords = src->tcoords; - data.elements = src->elements; - data.elmCount = src->nelements; - data.vert_count = src->nverts; - i32 batch = RSGL_drawRawVerts(renderer, &data); - RSGL_UNUSED(batch); - - RSGL_renderer_setTexture(renderer, save); -} - -RFont_texture RFont_RSGL_createAtlas(RSGL_renderer* renderer, u32 atlasWidth, u32 atlasHeight) { - RSGL_textureBlob blob; - blob.data = NULL; - blob.width = atlasWidth; - blob.height = atlasWidth; - blob.dataType = RSGL_textureDataInt; - blob.dataFormat = RSGL_formatRGBA; //RSGL_formatRGBA; - blob.textureFormat = RSGL_formatRGBA;//RSGL_formatRGBA; - RFont_texture id = RSGL_renderer_createTexture(renderer, &blob); - return id; -} - -void RFont_RSGL_deleteAtlas(RSGL_renderer* renderer, RFont_texture atlas) { - RSGL_renderer_deleteTexture(renderer, atlas); -} - -void RFont_RSGL_bitmapToAtlas(RSGL_renderer* renderer, RFont_texture atlas, u32 atlasWidth, u32 atlasHeight, u32 maxHeight, u8* bitmap, float w, float h, float* x, float* y) { - RSGL_UNUSED(atlasHeight); - if (((*x) + w) >= atlasWidth) { - *x = 0; - *y += (float)maxHeight; - } - - RSGL_textureBlob blob; - blob.width = w; - blob.height = h; - blob.dataType = RSGL_textureDataInt; - blob.dataFormat = RSGL_formatRGBA; - blob.textureFormat = blob.dataFormat; - - u8* newBitmap = (u8*)RSGL_MALLOC(w * h * 4); - - for (size_t indexY = 0; indexY < (size_t)h; indexY++) { - for (size_t indexX = 0; indexX < (size_t)w; indexX++) { - size_t index = ((indexY * (size_t)w * 4) + indexX * 4); - size_t oIndex = ((indexY * (size_t)w) + indexX); - - u8 value = bitmap[oIndex]; - - newBitmap[index + 0] = value; - newBitmap[index + 1] = value; - newBitmap[index + 2] = value; - newBitmap[index + 3] = value; - } - } - - blob.data = newBitmap; - - RSGL_renderer_copyToTexture(renderer, atlas, (size_t)(*x), (size_t)(*y), &blob); - - RSGL_FREE(newBitmap); - - *x += w; -} - -void RFont_RSGL_setFrameBuffer(RSGL_renderer* renderer, u32 width, u32 height) { - RSGL_renderer_updateSize(renderer, width, height); -} - -void RFont_RSGL_setColor(RSGL_renderer* renderer, float r, float g, float b, float a) { - RSGL_renderer_setColor(renderer, RSGL_RGBA(r * 255.0f, g * 255.0f, b * 255.0f, a * 255.0f)); -} - -RFont_renderer_proc RFont_RSGL_renderer_proc(void) { - RFont_renderer_proc proc; - RSGL_MEMSET(&proc, 0, sizeof(proc)); - proc.create_atlas = (RFont_texture (*)(void* ctx, u32 atlasWidth, u32 atlasHeight))RFont_RSGL_createAtlas; - proc.free_atlas = (void (*)(void*, RSGL_texture))RFont_RSGL_deleteAtlas; - proc.bitmap_to_atlas = (void(*)(void*, RFont_texture, u32, u32, u32, u8*, float, float, float*, float*))RFont_RSGL_bitmapToAtlas; - proc.render = (void (*)(void*, const RFont_render_data* data))RFont_RSGL_render_text; - proc.set_framebuffer = (void (*)(void*, u32, u32))RFont_RSGL_setFrameBuffer; - proc.set_color = (void (*)(void*, float, float, float, float))RFont_RSGL_setColor; - return proc; -} - -#endif - -#if !defined(RSGL_NO_HIGHLEVEL) - -/* -**** -RSGL_draw -**** -*/ - -i32 RSGL_drawPoint(RSGL_renderer* renderer, RSGL_vec2D p) { - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, RSGL_VEC3D(p.x, p.y, 0.0f)); - - float points[] = {RSGL_GET_MATRIX_POINT((float)p.x, (float)p.y, 0.0f)}; - float texPoints[] = { renderer->state.source.x, renderer->state.source.y }; - u16 elements[] = { 0 }; - - RSGL_rawVerts data; - data.type = RSGL_POINTS; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = 1; - data.vert_count = 1; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawRect(RSGL_renderer* renderer, RSGL_rect r) { - float texPoints[] = { - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - }; - - RSGL_vec3D center = (RSGL_vec3D){r.x + (r.w / 2.0f), r.y + (r.h / 2.0f), 0.0f}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float points[] = { - RSGL_GET_MATRIX_POINT(r.x, r.y, 0.0f), - RSGL_GET_MATRIX_POINT(r.x, r.y + r.h, 0.0f), - RSGL_GET_MATRIX_POINT(r.x + r.w, r.y, 0.0f), - RSGL_GET_MATRIX_POINT(r.x + r.w, r.y + r.h, 0.0f), - }; - - u16 elements[] = { - 0, 1, 2, - 3, 2, 1 - }; - - RSGL_rawVerts data; - data.type = RSGL_TRIANGLES; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = 6; - data.vert_count = 4; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawRoundRect(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding) { - RSGL_drawRect(renderer, RSGL_RECT(r.x + (rounding.x / 2), r.y, r.w - rounding.x, r.h)); - RSGL_drawRect(renderer, RSGL_RECT(r.x, r.y + (rounding.y / 2), r.w, r.h - rounding.y)); - - RSGL_drawArc(renderer, RSGL_RECT(r.x, r.y, rounding.x, rounding.y), (RSGL_vec2D){180, 270}); - RSGL_drawArc(renderer, RSGL_RECT(r.x + (r.w - rounding.x), r.y, rounding.x, rounding.y), (RSGL_vec2D){90, 180}); - RSGL_drawArc(renderer, RSGL_RECT(r.x + (r.w - rounding.x), r.y + (r.h - rounding.y), rounding.x, rounding.y), (RSGL_vec2D){0, 90}); - return RSGL_drawArc(renderer, RSGL_RECT(r.x, r.y + (r.h - rounding.y), rounding.x, rounding.y), (RSGL_vec2D){270, 360}); -} - -i32 RSGL_drawPolygonOutlineEx(RSGL_renderer* renderer, RSGL_rect o, u32 sides, RSGL_vec2D arc); - -i32 RSGL_drawPolygonEx(RSGL_renderer* renderer, RSGL_rect o, u32 sides, RSGL_vec2D arc) { - static float verts[360 * 3]; - static float texcoords[360 * 2]; - static u16 elements[360 * 6]; - - RSGL_vec3D center = (RSGL_vec3D){o.x + (o.w / 2.0f), o.y + (o.h / 2.0f), 0}; - - o = (RSGL_rect){o.x, o.y, o.w / 2, o.h / 2}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float displacement = 360.0f / (float)sides; - float angle = displacement * arc.x; - - size_t vIndex = 0; - size_t tIndex = 0; - size_t iIndex = 0; - - float texCenterX = (0.5 * (renderer->state.source.w)); - float texCenterY = (0.5 * (renderer->state.source.h)); - - RSGL_UNUSED(texCenterX); - RSGL_UNUSED(texCenterY); - - { - RSGL_vec2D p = {center.x, center.y}; - - texcoords[tIndex] = (renderer->state.source.x) + texCenterX; - texcoords[tIndex + 1] = (renderer->state.source.y) + texCenterY; - float temp[3] = { RSGL_GET_MATRIX_POINT(p.x, p.y, 0.0) }; - memcpy(verts + vIndex, temp, 3 * sizeof(float)); - - angle += displacement; - tIndex += 2; - vIndex += 3; - } - - u32 i; - for (i = 0; i < sides + 1; i++) { - RSGL_vec2D p = {RSGL_COS(angle * DEG2RAD), RSGL_SIN(angle * DEG2RAD)}; - - texcoords[tIndex] = ((p.x + 1.0f) * texCenterX) + (renderer->state.source.x) ; - texcoords[tIndex + 1] = ((p.y + 1.0f) * texCenterY) + (renderer->state.source.y); - - float temp[3] = { RSGL_GET_MATRIX_POINT(o.x + o.w + (p.x * o.w), o.y + o.h + (p.y * o.h), 0.0) }; - memcpy(&verts[vIndex], temp, 3 * sizeof(float)); - - elements[iIndex + 0] = i; - - if (i < sides) - elements[iIndex + 1] = i + 1; - else - elements[iIndex + 1] = 1; - - elements[iIndex + 2] = 0; - - angle += displacement; - tIndex += 2; - vIndex += 3; - iIndex += 3; - } - - RSGL_rawVerts data; - data.type = RSGL_TRIANGLES; - data.verts = verts; - data.texCoords = texcoords; - data.elements = elements; - data.elmCount = iIndex; - data.vert_count = (vIndex / 3); - - i32 out = RSGL_drawRawVerts(renderer, &data); - return out; -} - -i32 RSGL_drawPolygon(RSGL_renderer* renderer, RSGL_rect o, u32 sides) { return RSGL_drawPolygonEx(renderer, o, sides, (RSGL_vec2D){0, (float)sides}); } - - -i32 RSGL_drawArc(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc) { - u32 verts = (u32)((float)((2 * M_PI * ((o.w + o.h) / 2.0f)) / 10) + 0.5); - verts %= 360; - - return RSGL_drawPolygonEx(renderer, o, verts, arc); -} - -i32 RSGL_drawOval(RSGL_renderer* renderer, RSGL_rect o) { - float verts = ((2 * M_PI * ((o.w + o.h) / 2.0f)) / 10); - verts = (verts > 360 ? 360 : verts); - - return RSGL_drawPolygonEx(renderer, o, verts, (RSGL_vec2D){0, verts}); -} - -/* - 3D -*/ - -i32 RSGL_drawPoint3D(RSGL_renderer* renderer, RSGL_vec3D p) { - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, p); - - float points[] = {RSGL_GET_MATRIX_POINT((float)p.x, (float)p.y, (float)p.z)}; - float texPoints[] = { renderer->state.source.x, renderer->state.source.y }; - u16 elements[] = { 0, }; - - RSGL_rawVerts data; - data.type = RSGL_POINTS; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = 1; - data.vert_count = 1; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawLine3D(RSGL_renderer* renderer, RSGL_vec3D p1, RSGL_vec3D p2, u32 thickness) { - renderer->state.lineWidth = thickness; - - RSGL_vec3D center = {(p1.x + p2.x) / 2.0f, (p1.y + p2.y) / 2.0f, (p1.z + p2.z) / 2.0f}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float points[] = {RSGL_GET_MATRIX_POINT(p1.x, p1.y, p1.z), RSGL_GET_MATRIX_POINT(p2.x, p2.y, p2.z)}; - float texPoints[] = { renderer->state.source.x, renderer->state.source.y, renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h}; - u16 elements[] = { 0, 1 }; - - RSGL_rawVerts data; - data.type = RSGL_LINES; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = 4; - data.vert_count = 2; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawTriangle(RSGL_renderer* renderer, RSGL_vec3D t[3]) { - RSGL_vec3D center = {t[2].x, (t[2].y + t[0].y) / 2.0f, t[1].z}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float points[] = { - RSGL_GET_MATRIX_POINT(t[0].x, t[0].y, t[0].z), - RSGL_GET_MATRIX_POINT(t[1].x, t[1].y, t[1].z), - RSGL_GET_MATRIX_POINT(t[2].x, t[2].y, t[2].z) - }; - - float texPoints[] = { - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - ((float)(t[2].x - t[0].x)/t[1].x < 1) ? (renderer->state.source.x + (float)(t[2].x - t[0].x) / t[1].x) : renderer->state.source.x, renderer->state.source.y, - }; - - u16 elements[] = { - 0, 1, 2, - }; - - RSGL_rawVerts data; - data.type = RSGL_TRIANGLES; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = 3; - data.vert_count = 3; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawCube(RSGL_renderer* renderer, RSGL_cube cube) { - float texPoints[] = { - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - - renderer->state.source.x, renderer->state.source.y, - renderer->state.source.x, renderer->state.source.y + renderer->state.source.h, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y, - renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h, - }; - - RSGL_vec3D center = { - cube.x + (cube.w / 2.0f), - cube.y + (cube.h / 2.0f), - cube.z - }; - - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float points[] = { - // Front face - RSGL_GET_MATRIX_POINT(cube.x, cube.y, cube.z), - RSGL_GET_MATRIX_POINT(cube.x, cube.y + cube.h, cube.z), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y, cube.z), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y + cube.h, cube.z), - // Back face - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y + cube.h, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x, cube.y, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x, cube.y + cube.h, cube.z + cube.l), - // Left face - RSGL_GET_MATRIX_POINT(cube.x, cube.y, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x, cube.y + cube.h, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x, cube.y, cube.z), - RSGL_GET_MATRIX_POINT(cube.x, cube.y + cube.h, cube.z), - // Right face - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y, cube.z), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y + cube.h, cube.z), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y + cube.h, cube.z + cube.l), - // Top face - RSGL_GET_MATRIX_POINT(cube.x, cube.y + cube.h, cube.z), - RSGL_GET_MATRIX_POINT(cube.x, cube.y + cube.h, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y + cube.h, cube.z), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y + cube.h, cube.z + cube.l), - // Bottom face - RSGL_GET_MATRIX_POINT(cube.x, cube.y, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x, cube.y, cube.z), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y, cube.z + cube.l), - RSGL_GET_MATRIX_POINT(cube.x + cube.w, cube.y, cube.z), - }; - - u16 elements[] = { - 0, 1, 2, - 3, 2, 1, - - 4, 5, 6, - 7, 6, 5, - - 8, 9, 10, - 11, 10, 9, - - 12, 13, 14, - 15, 14, 13, - - 16, 17, 18, - 19, 18, 17, - - 20, 21, 22, - 23, 21, 22, - }; - - RSGL_rawVerts data; - data.type = RSGL_TRIANGLES; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = sizeof(elements) / sizeof(u16); - data.vert_count = sizeof(points) / sizeof(float) / 3; - - return RSGL_drawRawVerts(renderer, &data); -} - -/* -outlines -*/ - -i32 RSGL_drawLine(RSGL_renderer* renderer, RSGL_vec2D p1, RSGL_vec2D p2, u32 thickness) { - renderer->state.lineWidth = thickness; - - RSGL_vec3D center = {(p1.x + p2.x) / 2.0f, (p1.y + p2.y) / 2.0f, 0.0f}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float points[] = {RSGL_GET_MATRIX_POINT(p1.x, p1.y, 0.0f), RSGL_GET_MATRIX_POINT(p2.x, p2.y, 0.0f)}; - float texPoints[] = { renderer->state.source.x, renderer->state.source.y, renderer->state.source.x + renderer->state.source.w, renderer->state.source.y + renderer->state.source.h}; - - u16 elements[] = { 0, 1 }; - - RSGL_rawVerts data; - data.type = RSGL_LINES; - data.verts = points; - data.texCoords = texPoints; - data.elements = elements; - data.elmCount = 4; - data.vert_count = 2; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawTriangleOutline(RSGL_renderer* renderer, RSGL_vec3D t[3], u32 thickness) { - renderer->state.lineWidth = thickness; - RSGL_vec3D center = {t[2].x, (t[2].y + t[0].y) / 2.0f, 0}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - float points[] = {RSGL_GET_MATRIX_POINT(t[2].x, t[2].y, t[2].z), - RSGL_GET_MATRIX_POINT(t[0].x, t[0].y,t[0].z), - RSGL_GET_MATRIX_POINT(t[0].x, t[0].y, t[0].z), - RSGL_GET_MATRIX_POINT(t[1].x, t[1].y,t[1].z), - RSGL_GET_MATRIX_POINT(t[1].x, t[1].y, t[1].z), - RSGL_GET_MATRIX_POINT(t[2].x, t[2].y, t[2].z)}; - - float texCoords[18]; - - u16 elements[] = { - 0, 1, 2, - 3, 2, 1 - }; - - RSGL_rawVerts data; - data.type = RSGL_LINES; - data.verts = points; - data.texCoords = texCoords; - data.elements = elements; - data.elmCount = 6; - data.vert_count = 6; - - return RSGL_drawRawVerts(renderer, &data); -} -i32 RSGL_drawRectOutline(RSGL_renderer* renderer, RSGL_rect r, u32 thickness) { - RSGL_renderer_setCenter(renderer, (RSGL_vec3D){r.x + (r.w / 2.0f), r.y + (r.h / 2.0f), 0.0f}); - RSGL_drawLine(renderer, (RSGL_vec2D){r.x, r.y}, (RSGL_vec2D){r.x + r.w, r.y}, thickness); - - RSGL_renderer_setCenter(renderer, (RSGL_vec3D){r.x + (r.w / 2.0f), r.y + (r.h / 2.0f), 0.0f}); - RSGL_drawLine(renderer, (RSGL_vec2D){r.x, r.y}, (RSGL_vec2D){r.x, r.y + r.h}, thickness); - - RSGL_renderer_setCenter(renderer, (RSGL_vec3D){r.x + (r.w / 2.0f), r.y + (r.h / 2.0f), 0.0f}); - RSGL_drawLine(renderer, (RSGL_vec2D){r.x, r.y + r.h}, (RSGL_vec2D){r.x + r.w, r.y + r.h}, thickness); - - RSGL_renderer_setCenter(renderer, (RSGL_vec3D){r.x + (r.w / 2.0f), r.y + (r.h / 2.0f), 0.0f}); - return RSGL_drawLine(renderer, (RSGL_vec2D){r.x + r.w, r.y}, (RSGL_vec2D){r.x + r.w, r.y + r.h}, thickness); -} -i32 RSGL_drawRoundRectOutline(RSGL_renderer* renderer, RSGL_rect r, RSGL_vec2D rounding, u32 thickness) { - RSGL_drawRect(renderer, RSGL_RECT(r.x + (rounding.x/2), r.y, r.w - rounding.x, (int)(thickness + !thickness))); - RSGL_drawRect(renderer, RSGL_RECT(r.x + (rounding.x/2), r.y + r.h, r.w - rounding.x, (int)(thickness + !thickness))); - RSGL_drawRect(renderer, RSGL_RECT(r.x, r.y + (rounding.y/2), (int)(thickness + !thickness), r.h - rounding.y)); - RSGL_drawRect(renderer, RSGL_RECT(r.x + r.w, r.y + (rounding.y/2), (int)(thickness + !thickness), r.h - rounding.y)); - - RSGL_drawArcOutline(renderer, RSGL_RECT(r.x, r.y, rounding.x, rounding.y), (RSGL_vec2D){180, 270}, thickness); - RSGL_drawArcOutline(renderer, RSGL_RECT(r.x + (r.w - rounding.x), r.y, rounding.x, rounding.y), (RSGL_vec2D){90, 180}, thickness); - RSGL_drawArcOutline(renderer, RSGL_RECT(r.x + (r.w - rounding.x), r.y + (r.h - rounding.y) - 1, rounding.x, rounding.y + 2), (RSGL_vec2D){0, 90}, thickness); - return RSGL_drawArcOutline(renderer, RSGL_RECT(r.x + 1, r.y + (r.h - rounding.y) - 1, rounding.x, rounding.y + 2), (RSGL_vec2D){270, 360}, thickness); -} - -i32 RSGL_drawPolygonOutlineEx(RSGL_renderer* renderer, RSGL_rect o, u32 sides, RSGL_vec2D arc) { - static float verts[360 * 2 * 3]; - static float texCoords[360 * 2 * 2]; - - RSGL_vec3D center = (RSGL_vec3D) {o.x + (o.w / 2.0f), o.y + (o.h / 2.0f), 0.0f}; - RSGL_mat4 matrix = RSGL_renderer_initDrawMatrix(renderer, center); - - o = (RSGL_rect){o.x + (o.w / 2), o.y + (o.h / 2), o.w / 2, o.h / 2}; - - float displacement = 360.0f / (float)sides; - float centralAngle = displacement * arc.x; - - i32 i; - u32 j; - size_t index = 0; - - for (i = arc.x; i < arc.y; i++) { - for (j = 0; j < 2; j++) { - float temp[3] = { - RSGL_GET_MATRIX_POINT( - o.x + (RSGL_SIN(DEG2RAD * centralAngle) * o.w), - o.y + (RSGL_COS(DEG2RAD * centralAngle) * o.h), - (0.0) - ) - }; - memcpy(verts + index, temp, sizeof(float) * 3); - - if (!j) centralAngle += displacement; - index += 3; - } - } - - u16 elements[] = { - 0, 1, 2, - 3, 2, 1 - }; - - RSGL_rawVerts data; - data.type = RSGL_LINES; - data.verts = verts; - data.texCoords = texCoords; - data.elements = elements; - data.elmCount = 6; - data.vert_count = 6; - - return RSGL_drawRawVerts(renderer, &data); -} - -i32 RSGL_drawPolygonOutline(RSGL_renderer* renderer, RSGL_rect o, u32 sides, u32 thickness) { - renderer->state.lineWidth = thickness; - return RSGL_drawPolygonOutlineEx(renderer, o, sides, (RSGL_vec2D){0, (float)sides}); -} -i32 RSGL_drawArcOutline(RSGL_renderer* renderer, RSGL_rect o, RSGL_vec2D arc, u32 thickness) { - float verts = ((2 * M_PI * ((o.w + o.h) / 2.0f)) / 10); - verts = (verts > 360 ? 360 : verts); - - renderer->state.lineWidth = thickness; - return RSGL_drawPolygonOutlineEx(renderer, o, verts, arc); -} - -i32 RSGL_drawOvalOutline(RSGL_renderer* renderer, RSGL_rect o, u32 thickness) { - float verts = ((2 * M_PI * ((o.w + o.h) / 2.0f)) / 10); - verts = (verts > 360 ? 360 : verts); - - renderer->state.lineWidth = thickness; - return RSGL_drawPolygonOutlineEx(renderer, o, verts, (RSGL_vec2D){0, verts}); -} - -/* -****** -RSGL_view -****** -*/ - -/* Multiply the current matrix by a rotation matrix */ -RSGL_mat4 RSGL_projection_getMatrix(const RSGL_projection* projection) { - RSGL_mat4 matrix = RSGL_mat4_loadIdentity(); - switch (projection->type) { - case RSGL_projectionPerspective3D: - matrix = RSGL_mat4_perspective(matrix.m, projection->p3D.fov, projection->p3D.ratio, projection->p3D.pNear, projection->p3D.pFar); - break; - case RSGL_projectionOrtho3D: { - double top = projection->p3D.fov / 2.0; - double right = top * projection->p3D.ratio; - - matrix = RSGL_mat4_ortho(matrix.m, -right, right, -top, top, projection->p3D.pNear, projection->p3D.pFar); - break; - } - case RSGL_projectionOrtho2D: - matrix = RSGL_mat4_ortho(matrix.m, 0, projection->p2D.width, projection->p2D.height, 0, 0, 1.0); - break; - default: break; - } - - return matrix; -} - - -RSGL_mat4 RSGL_view_getMatrix(const RSGL_view* view) { - RSGL_mat4 matrix = RSGL_mat4_loadIdentity(); - switch (view->type) { - case RSGL_viewType2D: - matrix = RSGL_mat4_translate(matrix.m, -view->view2D.target.x, -view->view2D.target.y, -view->view2D.target.z); - matrix = RSGL_mat4_rotate(matrix.m, view->view2D.rotation, 0, 0, 1); - matrix = RSGL_mat4_scale(matrix.m, view->view2D.zoom, view->view2D.zoom, 1.0f); - matrix = RSGL_mat4_translate(matrix.m, view->view2D.offset.x, view->view2D.offset.y, view->view2D.offset.z); - break; - case RSGL_viewType3D: - matrix = RSGL_mat4_lookAt(matrix.m, view->view3D.pos.x, view->view3D.pos.y, view->view3D.pos.z, view->view3D.target.x, view->view3D.target.y, view->view3D.target.z, - view->view3D.up.x, view->view3D.up.y, view->view3D.up.z); - break; - default: break; - } - - return matrix; -} - -#endif - -/* -****** -RSGL_Matrix -****** -*/ - - -RSGL_mat4 RSGL_mat4_lookAt(float matrix[16], float eyeX, float eyeY, float eyeZ, float targetX, float targetY, float targetZ, float upX, float upY, float upZ) { - float matLookAt[16]; - - float length = 0.0f; - float ilength = 0.0f; - - RSGL_vec3D vz = { eyeX - targetX, eyeY - targetY, eyeZ - targetZ }; - - RSGL_vec3D v = vz; - length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); - if (length == 0.0f) length = 1.0f; - ilength = 1.0f/length; - vz.x *= ilength; - vz.y *= ilength; - vz.z *= ilength; - - RSGL_vec3D vx = { upY*vz.z - upZ*vz.y, upZ*vz.x - upX*vz.z, upX*vz.y - upY*vz.x }; - - v = vx; - length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); - if (length == 0.0f) length = 1.0f; - ilength = 1.0f/length; - vx.x *= ilength; - vx.y *= ilength; - vx.z *= ilength; - - RSGL_vec3D vy = { vz.y*vx.z - vz.z*vx.y, vz.z*vx.x - vz.x*vx.z, vz.x*vx.y - vz.y*vx.x }; - - matLookAt[0] = vx.x; - matLookAt[1] = vy.x; - matLookAt[2] = vz.x; - matLookAt[3] = 0.0f; - matLookAt[4] = vx.y; - matLookAt[5] = vy.y; - matLookAt[6] = vz.y; - matLookAt[7] = 0.0f; - matLookAt[8] = vx.z; - matLookAt[9] = vy.z; - matLookAt[10] = vz.z; - matLookAt[11] = 0.0f; - matLookAt[12] = -(vx.x*eyeX + vx.y*eyeY + vx.z*eyeZ); - matLookAt[13] = -(vy.x*eyeX + vy.y*eyeY + vy.z*eyeZ); - matLookAt[14] = -(vz.x*eyeX + vz.y*eyeY + vz.z*eyeZ); - matLookAt[15] = 1.0f; - - return RSGL_mat4_multiply(matrix, matLookAt); -} - -RSGL_mat4 RSGL_mat4_ortho(float matrix[16], float left, float right, float bottom, float top, float znear, float zfar) { - float rl = (float)(right - left); - float tb = (float)(top - bottom); - float fn = (float)(zfar - znear); - - float matOrtho[16] = { - (2.0f / rl), 0.0f, 0.0f, 0.0f, - 0.0f, (2.0f / tb), 0.0f, 0.00, - 0.0f, 0.0f, (-2.0f / fn), 0.0f, - (-((float)left + (float)right) / rl), -((float)top + (float)bottom)/tb, (-((float)zfar + (float)znear) / fn), 1.0f - }; - - return RSGL_mat4_multiply(matrix, matOrtho); -} - -RSGL_mat4 RSGL_mat4_scale(float matrix[16], float x, float y, float z) { - RSGL_mat4 result; - - for (int i = 0; i < 16; ++i) { - result.m[i] = matrix[i]; - } - - result.m[0] += matrix[0]*x + matrix[4]*y + matrix[8]*z; - result.m[13] += matrix[1]*x + matrix[5]*y + matrix[9]*z; - result.m[10] += matrix[2]*x + matrix[6]*y + matrix[10]*z; - result.m[11] += matrix[2] + matrix[6] + matrix[10]; - - return result; -} - - - -/* Multiply the current matrix by a translation matrix */ -RSGL_mat4 RSGL_mat4_translate(float matrix[16], float x, float y, float z) { - RSGL_mat4 result; - - for (int i = 0; i < 16; ++i) { - result.m[i] = matrix[i]; - } - - result.m[12] += matrix[0]*x + matrix[4]*y + matrix[8]*z; - result.m[13] += matrix[1]*x + matrix[5]*y + matrix[9]*z; - result.m[14] += matrix[2]*x + matrix[6]*y + matrix[10]*z; - - return result; -} - -RSGL_mat4 RSGL_mat4_loadIdentity(void) { - RSGL_mat4 matrix = (RSGL_mat4) { - { - 1.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 1.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 1.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - } - }; - - return matrix; -} - -RSGL_mat4 RSGL_mat4_rotate(float matrix[16], float angle, float x, float y, float z) { - /* Axis vector (x, y, z) normalization */ - float lengthSquared = x * x + y * y + z * z; - if ((lengthSquared != 1.0f) && (lengthSquared != 0.0f)) { - float inverseLength = 1.0f / sqrtf(lengthSquared); - x *= inverseLength; - y *= inverseLength; - z *= inverseLength; - } - - /* Rotation matrix generation */ - float sinres = RSGL_SIN(angle); - float cosres = RSGL_COS(angle); - float t = 1.0f - cosres; - - float matRotation[16] = { - x * x * t + cosres, y * x * t + z * sinres, z * x * t - y * sinres, 0.0f, - x * y * t - z * sinres, y * y * t + cosres, z * y * t + x * sinres, 0.0f, - x * z * t + y * sinres, y * z * t - x * sinres, z * z * t + cosres, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f - }; - - return RSGL_mat4_multiply(matRotation, matrix); -} - -RSGL_mat4 RSGL_mat4_perspective(float matrix[16], float fovY, float aspect, float zNear, float zFar) { - fovY = (fovY * DEG2RAD) / 2.0f; - const float f = (RSGL_COS(fovY) / RSGL_SIN(fovY)); - - float perspective[16] = { - (f / aspect), 0.0f, 0.0f, 0.0f, - 0, f, 0.0f, 0.0f, - 0.0f, 0.0f, (zFar + zNear) / (zNear - zFar), -1.0f, - 0.0f, 0.0f, (2.0f * zFar * zNear) / (zNear - zFar), 0.0f - }; - - return RSGL_mat4_multiply(matrix, perspective); -} - -RSGL_vec3D RSGL_mat4_multiplyPoint(RSGL_mat4 matrix, RSGL_vec3D point) { - return (RSGL_vec3D){RSGL_GET_MATRIX_POINT(point.x, point.y, point.z)}; -} - -RSGL_mat4 RSGL_mat4_multiply(float left[16], float right[16]) { - return (RSGL_mat4) { - { - left[0] * right[0] + left[1] * right[4] + left[2] * right[8] + left[3] * right[12], - left[0] * right[1] + left[1] * right[5] + left[2] * right[9] + left[3] * right[13], - left[0] * right[2] + left[1] * right[6] + left[2] * right[10] + left[3] * right[14], - left[0] * right[3] + left[1] * right[7] + left[2] * right[11] + left[3] * right[15], - left[4] * right[0] + left[5] * right[4] + left[6] * right[8] + left[7] * right[12], - left[4] * right[1] + left[5] * right[5] + left[6] * right[9] + left[7] * right[13], - left[4] * right[2] + left[5] * right[6] + left[6] * right[10] + left[7] * right[14], - left[4] * right[3] + left[5] * right[7] + left[6] * right[11] + left[7] * right[15], - left[8] * right[0] + left[9] * right[4] + left[10] * right[8] + left[11] * right[12], - left[8] * right[1] + left[9] * right[5] + left[10] * right[9] + left[11] * right[13], - left[8] * right[2] + left[9] * right[6] + left[10] * right[10] + left[11] * right[14], - left[8] * right[3] + left[9] * right[7] + left[10] * right[11] + left[11] * right[15], - left[12] * right[0] + left[13] * right[4] + left[14] * right[8] + left[15] * right[12], - left[12] * right[1] + left[13] * right[5] + left[14] * right[9] + left[15] * right[13], - left[12] * right[2] + left[13] * right[6] + left[14] * right[10] + left[15] * right[14], - left[12] * right[3] + left[13] * right[7] + left[14] * right[11] + left[15] * right[15] - } - }; -} -#endif /* RSGL_IMPLEMENTATION */ |