From 9c89460e136ed6c6c43704d9a3a15105e0f006b0 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Sat, 22 Feb 2020 18:17:06 +0800
Subject: *wog
---
src/config.h | 8 +
src/core/device.c | 1 +
src/core/rasterizer.c | 14 +-
src/core/shader.h | 1 +
src/core/vert.h | 5 +-
src/example/01_dot/01_dot.c | 1 -
src/example/02_cube/02_cube.c | 1 -
src/example/03_texture/03_texture.c | 9 +-
src/example/04_bloom/04_bloom.c | 1 -
src/example/example.h | 10 +-
src/extend/mesh.h | 1 +
src/extern/wog.c | 666 ++++++++++++++++++++++++++++++++++++
src/extern/wog.h | 140 ++++++++
src/main.c | 54 ++-
src/math/mat.c | 2 +-
src/math/math.h | 1 +
src/math/vec4.c | 9 +
src/shaders/common.h | 45 ++-
src/window.h | 8 +
19 files changed, 908 insertions(+), 69 deletions(-)
create mode 100644 src/config.h
create mode 100644 src/extern/wog.c
create mode 100644 src/extern/wog.h
create mode 100644 src/window.h
diff --git a/src/config.h b/src/config.h
new file mode 100644
index 0000000..43c45af
--- /dev/null
+++ b/src/config.h
@@ -0,0 +1,8 @@
+#ifndef _SOFTSHADEROOM_CONFIG_H_
+#define _SOFTSHADEROOM_CONFIG_H_
+
+#define WIN32 1
+
+#define PLATFORM WIN32
+
+#endif
\ No newline at end of file
diff --git a/src/core/device.c b/src/core/device.c
index 23e4bb3..70ae11f 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -500,6 +500,7 @@ static void render_prims_triangle(uint varying_flag) {
/*back face culling*/
if (ssr_isenable(ENABLE_BACKFACECULL)) {
+ /*cull in ndc*/
float w0 = 1 / c0->w, w1 = 1 / c1->w, w2 = 1 / c2->w;
Vec3 ab, ac;
ab.x = c1->x * w1 - c0->x * w0;
diff --git a/src/core/rasterizer.c b/src/core/rasterizer.c
index a7d3544..d6a9fc1 100644
--- a/src/core/rasterizer.c
+++ b/src/core/rasterizer.c
@@ -92,17 +92,17 @@ void ssrR_triangle(
) {
ssr_assert(CA && CB && CC && program);
- Vec3 SA, SB, SC;
- vec4_dividew(CA, &SA); ssrU_viewport(&SA, &SA);
- vec4_dividew(CB, &SB); ssrU_viewport(&SB, &SB);
- vec4_dividew(CC, &SC); ssrU_viewport(&SC, &SC);
+ Vec4 SA, SB, SC;
+ vec4_dividewnoz(CA, &SA); ssrU_viewport(&SA, &SA);
+ vec4_dividewnoz(CB, &SB); ssrU_viewport(&SB, &SB);
+ vec4_dividewnoz(CC, &SC); ssrU_viewport(&SC, &SC);
/*
puttriangle(&SA, &SB, &SC, 0xffff0000);
return;
*/
- Vec3 *sa = &SA, *sb = &SB, *sc = &SC, *tmp;
+ Vec4 *sa = &SA, *sb = &SB, *sc = &SC, *tmp;
Vec4 *v4tmp;
uint itmp;
#define swap(t, a, b) {t = a; a = b; b = t;} /*sort in y axis*/
@@ -163,7 +163,9 @@ void ssrR_triangle(
vec3_scale(&bc, 1.f / (bc.x + bc.y + bc.z), &bc); \
/*early depth testing*/ \
if(depth_test){ \
- depth = bc.x*sa->z+bc.y*sb->z+bc.z*sc->z; \
+ depth = bc.x*sa->z + bc.y*sb->z + bc.z*sc->z; \
+ depth /= bc.x*sa->w + bc.y*sb->w + bc.z*sc->w; \
+ /*depth = bc.x*sa->z+bc.y*sb->z+bc.z*sc->z;*//*wrong*/ \
pass_depth_test = ssr_testdepth(p.x, p.y, depth); \
} \
/*early stencil testing*/ \
diff --git a/src/core/shader.h b/src/core/shader.h
index 3737e8c..26606b8 100644
--- a/src/core/shader.h
+++ b/src/core/shader.h
@@ -152,6 +152,7 @@ typedef struct {
byte* output; /*fragment-in*/
} ActiveReg;
+/*interpolation registers*/
Register registers[REG_TOTAL];
ActiveReg active_regs[REG_TOTAL];
diff --git a/src/core/vert.h b/src/core/vert.h
index 8578d87..6c968b5 100644
--- a/src/core/vert.h
+++ b/src/core/vert.h
@@ -22,16 +22,15 @@ Color color32_tocolor(Color32* c);
void color_tocolor32(Color c, Color32* out);
void color32_saturate(Color32* c);
-/*readonly*/
typedef struct Vert {
uint index;
Vec3 position;
Vec3 normal;
- Vec4 tangent;
+ Vec4 tangent; // w for handness
Vec2 texcoord;
Color color;
/*
- Vec2 texcoord1;
+ Vec2 texcoord1; // for lightmap
Vec4 joint;
Vec4 weight;
*/
diff --git a/src/example/01_dot/01_dot.c b/src/example/01_dot/01_dot.c
index e2902ca..3305137 100644
--- a/src/example/01_dot/01_dot.c
+++ b/src/example/01_dot/01_dot.c
@@ -10,7 +10,6 @@ void onloaddot(void* data) {
}
void oneventdot(void* data) {
- SDL_Event* e = (SDL_Event*)data;
}
void onupdatedot(void*data) {
diff --git a/src/example/02_cube/02_cube.c b/src/example/02_cube/02_cube.c
index 4e540e0..7e0840e 100644
--- a/src/example/02_cube/02_cube.c
+++ b/src/example/02_cube/02_cube.c
@@ -26,7 +26,6 @@ void onloadcube(void* data) {
}
void oneventcube(void* data) {
- SDL_Event* e = (SDL_Event*)data;
}
float _t = 0;
diff --git a/src/example/03_texture/03_texture.c b/src/example/03_texture/03_texture.c
index ab39298..f10c41a 100644
--- a/src/example/03_texture/03_texture.c
+++ b/src/example/03_texture/03_texture.c
@@ -40,7 +40,7 @@ static Mesh* yingham_mesh;
static Texture* cyborg_albedo;
static Mesh* cyborg_mesh;
-void onloadtexture(void* data) {
+void onload_texture(void* data) {
ssr_matrixmode(MATRIX_PROJECTION);
ssr_loadidentity();
ssr_perspective(90, ssr_getaspect(), 0.1, 10);
@@ -66,14 +66,13 @@ void onloadtexture(void* data) {
cyborg_mesh = mesh_loadfromobj("res/cyborg/cyborg.obj");
}
-void oneventtexture(void* data) {
- SDL_Event* e = (SDL_Event*)data;
+void onevent_texture(void* data) {
}
static float _t = 0;
static Quat q;
-void onupdatetexture(void*data) {
+void onupdate_texture(void*data) {
uint dt = *(uint*)data;
_t += dt / 1000.f;
@@ -100,7 +99,7 @@ void onupdatetexture(void*data) {
ssr_setuniformmat4(0, &world2object);
}
-void ondrawtexture(void*data) {
+void ondraw_texture(void*data) {
ssr_clearcolor(0xff202020);
ssr_cleardepth();
ssr_clearstencil(0);
diff --git a/src/example/04_bloom/04_bloom.c b/src/example/04_bloom/04_bloom.c
index 4a79669..037a9e1 100644
--- a/src/example/04_bloom/04_bloom.c
+++ b/src/example/04_bloom/04_bloom.c
@@ -58,7 +58,6 @@ void onloadbloom(void* data) {
}
void oneventbloom(void* data) {
- SDL_Event* e = (SDL_Event*)data;
}
static float _t = 0;
diff --git a/src/example/example.h b/src/example/example.h
index 6cb9a64..bcf9ebc 100644
--- a/src/example/example.h
+++ b/src/example/example.h
@@ -3,13 +3,13 @@
#include "../ssr.h"
#include "../util/type.h"
-#include "SDL2/SDL.h"
+//#include "SDL2/SDL.h"
#define EXAMPLE(i)\
-extern void onload##i(void*);\
-extern void onevent##i(void*);\
-extern void onupdate##i(void*);\
-extern void ondraw##i(void*);
+extern void onload_##i(void*);\
+extern void onevent_##i(void*);\
+extern void onupdate_##i(void*);\
+extern void ondraw_##i(void*);
#define EXAMPLECUR texture
diff --git a/src/extend/mesh.h b/src/extend/mesh.h
index 2c52669..aa2a398 100644
--- a/src/extend/mesh.h
+++ b/src/extend/mesh.h
@@ -3,6 +3,7 @@
#include "../core/vert.h"
+//
typedef struct Mesh {
Vert* vertices; uint vert_count;
uint* triangles; uint tris_count;
diff --git a/src/extern/wog.c b/src/extern/wog.c
new file mode 100644
index 0000000..7b8af8d
--- /dev/null
+++ b/src/extern/wog.c
@@ -0,0 +1,666 @@
+/**
+* Copyright (c) 2015~2017 chai(neonum)
+*
+* This library is free software; you can redistribute it and/or modify it
+* under the terms of the MIT license. See LICENSE for details.
+*/
+
+#include "wog.h"
+#include <windows.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <memory.h>
+#include <assert.h>
+
+#if WOG_API == WOG_GL
+#include <gl/GL.h>
+#include <gl/GLU.h>
+#endif
+
+
+#if WOG_API == WOG_GL
+/**
+* We need opengl32.lib and glu32.lib for using opengl functions on
+* windows platform.
+*/
+#pragma comment( lib, "opengl32.lib" )
+#pragma comment( lib, "glu32.lib" )
+#endif
+
+#define WINDOW_CLASS "WOG_WND"
+
+#define heap_alloc(T, C) (T*)malloc(sizeof(T)*(C))
+#define stack_alloc(T, C) (T*)alloca(sizeof(T)*(C))
+#define zero_mem(I, L) memset(I, 0, L)
+
+#define max(a, b) (a < b ? b : a)
+#define min(a, b) (a < b ? a : b)
+#define clamp(x, minv, maxv) (max(minv, min(x, maxv)))
+
+typedef struct wog_Window
+{
+ HWND hwnd; // Window handler
+ HDC hdc; // Device Context
+#if WOG_API == WOG_GDI
+ wog_Surface* surface; // render buffer
+#endif
+}wog_Window;
+
+#if WOG_API == WOG_GL
+typedef struct wog_GLContext
+{
+ HGLRC hrc; // Rendering Context
+}wog_GLContext;
+#endif
+
+
+void wog_handleEvent(wog_Window* window, MSG* msg, wog_Event* e)
+{
+ UINT uMsg;
+ WPARAM wParam;
+ LPARAM lParam;
+ uMsg = msg->message;
+ wParam = msg->wParam;
+ lParam = msg->lParam;
+ HWND hWnd = window->hwnd;
+
+ switch (uMsg)
+ {
+ case WM_SYSCOMMAND:
+ {
+ switch (wParam)
+ {
+ case SC_SCREENSAVE:
+ case SC_MONITORPOWER:
+ return ;
+ }
+ break;
+ }
+ return ;
+
+ case WM_CLOSE:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_ECLOSE;
+ return ;
+ }
+
+ case WM_KEYDOWN:
+ if ((wParam >= 0) && (wParam <= 255))
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EKEYDOWN;
+ e->key = wParam;
+
+ return ;
+ }
+ break;
+
+ case WM_KEYUP:
+ if ((wParam >= 0) && (wParam <= 255))
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EKEYUP;
+ e->key = wParam;
+
+ return ;
+ }
+ break;
+
+ case WM_MOUSEMOVE:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEMOTION;
+ wog_getMouse(window, &e->pos.x, &e->pos.y);
+
+ return ;
+ }
+
+ case WM_MOUSEWHEEL: // mousewheel scroll
+ {
+ int zDelta = GET_WHEEL_DELTA_WPARAM(wParam);
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEWHEEL;
+ e->wheel = zDelta > 0 ? 1 : -1;
+ return ;
+ }
+
+ case WM_LBUTTONDOWN:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEBUTTONDOWN;
+ e->button = WOG_MOUSE_LBUTTON;
+ return ;
+ }
+
+ case WM_RBUTTONDOWN:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEBUTTONDOWN;
+ e->button = WOG_MOUSE_RBUTTON;
+ return ;
+ }
+
+ case WM_MBUTTONDOWN:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEBUTTONDOWN;
+ e->button = WOG_MOUSE_MIDDLE;
+ return ;
+ }
+
+ case WM_LBUTTONUP:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEBUTTONUP;
+ e->button = WOG_MOUSE_LBUTTON;
+ return ;
+ }
+
+ case WM_RBUTTONUP:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEBUTTONUP;
+ e->button = WOG_MOUSE_RBUTTON;
+ return ;
+ }
+
+ case WM_MBUTTONUP:
+ {
+ zero_mem(e, sizeof(wog_Event));
+ e->type = WOG_EMOUSEBUTTONUP;
+ e->button = WOG_MOUSE_MIDDLE;
+ return ;
+ }
+
+ break;
+
+ default:
+ e->type = WOG_EUNKNOWN;
+ break;
+ }
+ DefWindowProc(hWnd, uMsg, wParam, lParam);
+ return ;
+}
+
+
+int wog_pollEvent(wog_Window* wnd, wog_Event* e)
+{
+ MSG msg;
+ if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
+ {
+ if (msg.message == WM_QUIT) return 0;
+ TranslateMessage(&msg);
+ wog_handleEvent(wnd, &msg, e);
+ return 1;
+ }
+ return 0;
+}
+
+
+// on size changed callback;
+static wog_Callback onSizeChanged = 0;
+static wog_Callback onQuit = 0;
+
+
+static LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+ // Get The Window Context
+ wog_Window* window = (wog_Window*)(GetWindowLong(hWnd, GWL_USERDATA));
+
+ // call callback functions
+#define call(callback)\
+ if (callback) \
+ callback(window)
+
+ switch (uMsg)
+ {
+ case WM_CREATE:
+ {
+ CREATESTRUCT* creation = (CREATESTRUCT*)(lParam); // Store Window Structure Pointer
+ window = (wog_Window*)(creation->lpCreateParams); // Get wog_Window
+ SetWindowLong(hWnd, GWL_USERDATA, (LONG)(window)); // Save it
+ }
+ return 0;
+
+ case WM_CLOSE: // Post WM_CLOSE to message queue.
+ PostMessage(hWnd, WM_CLOSE, wParam, lParam);
+ return 0;
+
+ case WM_SIZE:
+ call(onSizeChanged);
+ return 0;
+
+ case WM_QUIT:
+ call(onQuit);
+ return 0;
+
+ }
+
+ return DefWindowProc(hWnd, uMsg, wParam, lParam);
+#undef call
+}
+
+
+void wog_registerResizeCallback(wog_Callback cal)
+{
+ onSizeChanged = cal;
+}
+
+
+void wog_registerQuitCallback(wog_Callback cal)
+{
+ onQuit = cal;
+}
+
+wog_Surface* wog_getsurface(wog_Window* wnd) {
+ return wnd->surface;
+}
+
+static int registerWindowClass()
+{
+ // Register A Window Class
+ WNDCLASSEX windowClass; // Window Class
+ zero_mem(&windowClass, sizeof(WNDCLASSEX)); // Make Sure Memory Is Cleared
+
+ windowClass.cbSize = sizeof(WNDCLASSEX); // Size Of The windowClass Structure
+ windowClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraws The Window For Any Movement / Resizing
+ windowClass.lpfnWndProc = (WNDPROC)(WindowProc); // WindowProc Handles Messages
+ windowClass.hInstance = GetModuleHandle(0); // Set The Instance
+ windowClass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE); // Class Background Brush Color
+ windowClass.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
+ windowClass.lpszClassName = WINDOW_CLASS; // Sets The Applications Classname
+
+ if (RegisterClassEx(&windowClass) == 0) // Did Registering The Class Fail?
+ {
+ // NOTE: Failure, Should Never Happen
+ MessageBox(HWND_DESKTOP, "RegisterClassEx Failed!", "Error", MB_OK | MB_ICONEXCLAMATION);
+ return FALSE; // Return False (Failure)
+ }
+ return TRUE;
+}
+
+static void create_surface(HWND handle, int width, int height, wog_Surface **out_surface, HDC *out_memory_dc) {
+ BITMAPINFOHEADER bi_header;
+ HDC window_dc;
+ HDC memory_dc;
+ HBITMAP dib_bitmap;
+ HBITMAP old_bitmap;
+ unsigned char *buffer; // color buffer
+ wog_Surface *surface;
+
+ window_dc = GetDC(handle);
+ memory_dc = CreateCompatibleDC(window_dc);
+ ReleaseDC(handle, window_dc);
+
+ memset(&bi_header, 0, sizeof(BITMAPINFOHEADER));
+ bi_header.biSize = sizeof(BITMAPINFOHEADER);
+ bi_header.biWidth = width;
+ bi_header.biHeight = -height; /* top-down */
+ bi_header.biPlanes = 1;
+ bi_header.biBitCount = 32;
+ bi_header.biCompression = BI_RGB;
+ dib_bitmap = CreateDIBSection(memory_dc, (BITMAPINFO*)&bi_header,
+ DIB_RGB_COLORS, (void**)&buffer, NULL, 0);
+ assert(dib_bitmap != NULL);
+ old_bitmap = (HBITMAP)SelectObject(memory_dc, dib_bitmap);
+ DeleteObject(old_bitmap);
+
+ surface = (wog_Surface*)malloc(sizeof(wog_Surface));
+ surface->width = width;
+ surface->height = height;
+ surface->channels = 4;
+ surface->buffer = buffer;
+
+ *out_surface = surface;
+ *out_memory_dc = memory_dc;
+}
+
+
+wog_Window* wog_createWindow(const char* title, int width, int height, int x, int y, uint32 flags)
+{
+ int client_w = width, client_h = height;
+
+ if (! registerWindowClass())
+ {
+ printf("Register window class failed.\n");
+ return 0;
+ }
+
+ wog_Window* wnd = heap_alloc(wog_Window, 1);
+ zero_mem(wnd, sizeof(wog_Window));
+
+ DWORD windowStyle = 0; // Define Our Window Style
+ windowStyle |= WS_POPUP;
+ windowStyle |= WS_OVERLAPPED;
+ windowStyle |= WS_CAPTION;
+ windowStyle |= WS_SYSMENU;
+ windowStyle |= WS_MINIMIZEBOX;
+ windowStyle |= WS_VISIBLE;
+#define hasbit(fs, f) ((fs & f) == f)
+ if (hasbit(flags, WOG_RESIZABLE)) windowStyle |= WS_SIZEBOX;
+ if (hasbit(flags, WOG_DISABLE)) windowStyle |= WS_DISABLED;
+
+ DWORD windowExtendedStyle = WS_EX_APPWINDOW; // Define The Window's Extended Style
+
+ PIXELFORMATDESCRIPTOR pfd = // pfd Tells Windows How We Want Things To Be
+ {
+ sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
+ 1, // Version Number
+ PFD_DRAW_TO_WINDOW | // Format Must Support Window
+#if WOG_API == WOG_GL
+ PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
+#endif
+ PFD_DOUBLEBUFFER, // Must Support Double Buffering
+ PFD_TYPE_RGBA, // Request An RGBA Format
+ 32, // Select Our Color Depth
+ 0, 0, 0, 0, 0, 0, // Color Bits Ignored
+ 0, // No Alpha Buffer
+ 0, // Shift Bit Ignored
+ 0, // No Accumulation Buffer
+ 0, 0, 0, 0, // Accumulation Bits Ignored
+ 16, // 16Bit Z-Buffer (Depth Buffer)
+ 0, // No Stencil Buffer
+ 0, // No Auxiliary Buffer
+ PFD_MAIN_PLANE, // Main Drawing Layer
+ 0, // Reserved
+ 0, 0, 0 // Layer Masks Ignored
+ };
+ RECT windowRect = { 0, 0, width, height };
+ AdjustWindowRectEx(&windowRect, windowStyle, 0, windowExtendedStyle);
+ width = windowRect.right - windowRect.left;
+ height = windowRect.bottom - windowRect.top;
+ wnd->hwnd = CreateWindowEx(
+ windowExtendedStyle,
+ WINDOW_CLASS,
+ title,
+ windowStyle,
+ x, y,
+ width, height,
+ HWND_DESKTOP,
+ 0,
+ GetModuleHandle(0),
+ wnd
+ );
+
+ if (wnd->hwnd == 0)
+ return 0;
+
+ if (hasbit(flags, WOG_HIDDEN)) wog_hide(wnd);
+
+ // init device context
+ wnd->hdc = GetDC(wnd->hwnd);
+ if (wnd->hdc== 0)
+ {
+ DestroyWindow(wnd->hwnd);
+ wnd->hwnd = 0;
+ return 0;
+ }
+
+#if WOG_API == WOG_GDI
+ create_surface(wnd->hwnd, client_w, client_h, &wnd->surface, &wnd->hdc);
+#endif
+
+#if WOG_API == WOG_GL
+ // set pixel format
+ unsigned int pixelformat;
+ pixelformat = ChoosePixelFormat(wnd->hdc, &pfd);
+ if (pixelformat == 0)
+ {
+ wog_destroyWindow(wnd);
+ return 0;
+ }
+
+ // set pixel format
+ if (SetPixelFormat(wnd->hdc, pixelformat, &pfd) == 0 )
+ {
+ wog_destroyWindow(wnd);
+ return 0;
+ }
+#endif
+
+ return wnd;
+}
+
+#if WOG_API == WOG_GL
+wog_GLContext* wog_createGLContext(wog_Window* wnd)
+{
+ wog_GLContext* cxt = heap_alloc(wog_GLContext, 1);
+ zero_mem(cxt, sizeof(wog_GLContext));
+ cxt->hrc = wglCreateContext(wnd->hdc); // create opengl context base on device context
+ if (cxt->hrc == 0)
+ {
+ free(cxt);
+ return 0;
+ }
+ return cxt;
+}
+#endif
+
+#if WOG_API == WOG_GL
+int wog_makeCurrent(wog_Window* wnd, wog_GLContext* cxt)
+{
+ if (wnd && cxt)
+ {
+ if (wglMakeCurrent(wnd->hdc, cxt->hrc) == 0)
+ {
+ return 0;
+ }
+ return 1;
+ }
+
+ return 0;
+}
+#endif
+
+#if WOG_API == WOG_GL
+void wog_destroyGLContext(wog_GLContext* cxt)
+{
+ if (cxt && cxt->hrc)
+ {
+ wglDeleteContext(cxt->hrc);
+ free(cxt);
+ }
+}
+#endif
+
+void wog_updateSurface(wog_Window* wnd) {
+ HDC window_dc = GetDC(wnd->hwnd);
+ HDC memory_dc = wnd->hdc;
+ wog_Surface *surface = wnd->surface;
+ int width = surface->width;
+ int height = surface->height;
+ BitBlt(window_dc, 0, 0, width, height, memory_dc, 0, 0, SRCCOPY);
+ ReleaseDC(wnd->hwnd, window_dc);
+}
+
+void wog_destroyWindow(wog_Window* wnd)
+{
+ if (wnd)
+ {
+ ReleaseDC(wnd->hwnd, wnd->hdc);
+ DestroyWindow(wnd->hwnd);
+ free(wnd);
+ }
+}
+
+
+static void UnEscapeQuotes(char *arg)
+{
+ char *last = NULL;
+
+ while (*arg) {
+ if (*arg == '"' && *last == '\\') {
+ char *c_curr = arg;
+ char *c_last = last;
+
+ while (*c_curr) {
+ *c_last = *c_curr;
+ c_last = c_curr;
+ c_curr++;
+ }
+ *c_last = '\0';
+ }
+ last = arg;
+ arg++;
+ }
+}
+
+
+/* Parse a command line buffer into arguments */
+static int ParseCommandLine(char *cmdline, char **argv)
+{
+ char *bufp;
+ char *lastp = NULL;
+ int argc, last_argc;
+
+ argc = last_argc = 0;
+ for (bufp = cmdline; *bufp; ) {
+ /* Skip leading whitespace */
+ while (isspace(*bufp)) {
+ ++bufp;
+ }
+ /* Skip over argument */
+ if (*bufp == '"') {
+ ++bufp;
+ if (*bufp) {
+ if (argv) {
+ argv[argc] = bufp;
+ }
+ ++argc;
+ }
+ /* Skip over word */
+ while (*bufp && (*bufp != '"' || (lastp && *lastp == '\\'))) {
+ lastp = bufp;
+ ++bufp;
+ }
+ }
+ else {
+ if (*bufp) {
+ if (argv) {
+ argv[argc] = bufp;
+ }
+ ++argc;
+ }
+ /* Skip over word */
+ while (*bufp && !isspace(*bufp)) {
+ ++bufp;
+ }
+ }
+ if (*bufp) {
+ if (argv) {
+ *bufp = '\0';
+ }
+ ++bufp;
+ }
+
+ /* Strip out \ from \" sequences */
+ if (argv && last_argc != argc) {
+ UnEscapeQuotes(argv[last_argc]);
+ }
+ last_argc = argc;
+ }
+ if (argv) {
+ argv[argc] = NULL;
+ }
+ return(argc);
+}
+
+
+#ifdef main
+#undef main
+#endif
+
+
+#if defined(_MSC_VER) && !defined(_WIN32_WCE)
+/* The VC++ compiler needs main defined */
+#define console_main main
+#endif
+
+extern int wog_main(int argc, char* argv[]);
+
+/**
+* Entry of console application.
+*/
+int console_main(int argc, char* argv[])
+{
+ int status = wog_main(argc, argv);
+ return status;
+}
+
+
+/**
+* Entry of windows application.
+*/
+int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
+{
+ char* temp = GetCommandLine();
+ int len = strlen(temp) + 1;
+ char* cmd = stack_alloc(char, len);
+ strcpy(cmd, temp);
+ cmd[len - 1] = '\0';
+
+ int argc = 0;
+ char** argv = 0;
+ argc = ParseCommandLine(cmd, 0);
+ ParseCommandLine(cmd, 0);
+ argv = stack_alloc(char*, argc + 1);
+ ParseCommandLine(cmd, argv);
+
+ int status = console_main(argc, argv);
+
+ return 0;
+}
+
+
+void wog_swapBuffers(wog_Window* wnd)
+{
+ if (wnd)
+ {
+ SwapBuffers(wnd->hdc);
+ }
+}
+
+
+void wog_getMouse(wog_Window* wnd, int *x, int *y)
+{
+ POINT p;
+ GetCursorPos(&p);
+ ScreenToClient(wnd->hwnd, &p);
+ int w, h;
+ wog_getwindowsize(wnd, &w, &h);
+ *x = clamp(p.x, 0, w);
+ *y = clamp(p.y, 0, h);
+}
+
+
+void wog_getwindowsize(wog_Window* wnd, int* width, int* height)
+{
+ RECT r;
+ GetClientRect(wnd->hwnd, &r);
+ *width = r.right;
+ *height = r.bottom;
+}
+
+
+void wog_show(wog_Window* wnd)
+{
+ ShowWindow(wnd->hwnd, SW_SHOW);
+}
+
+
+void wog_hide(wog_Window* wnd)
+{
+ ShowWindow(wnd->hwnd, SW_HIDE);
+}
+
+
+void wog_sleep(int ms)
+{
+ Sleep(ms);
+}
+
+int wog_tick()
+{
+ return GetTickCount();
+}
\ No newline at end of file
diff --git a/src/extern/wog.h b/src/extern/wog.h
new file mode 100644
index 0000000..f616d82
--- /dev/null
+++ b/src/extern/wog.h
@@ -0,0 +1,140 @@
+/**
+* Copyright (c) 2015~2017 chai(neonum)
+*
+* This library is free software; you can redistribute it and/or modify it
+* under the terms of the MIT license. See LICENSE for details.
+*/
+
+#ifndef _WOG_H
+#define _WOG_H
+#include <Windows.h> // for virtual key value
+
+#define WOG_GL 1
+#define WOG_GDI 2
+
+#define WOG_API WOG_GDI
+
+typedef unsigned int uint32;
+typedef unsigned short uint16;
+
+enum // event type
+{
+ WOG_EUNKNOWN = 0, // unknown event
+
+ WOG_EKEYDOWN, // key pressed
+ WOG_EKEYUP, // key released
+
+ WOG_EMOUSEMOTION, // mouse motion
+ WOG_EMOUSEWHEEL, // mouse wheel scrolling
+ WOG_EMOUSEBUTTONDOWN, // mosue button down
+ WOG_EMOUSEBUTTONUP, // mosue button down
+
+ WOG_ECLOSE, // close window
+};
+
+enum // mouse button event, e.button value
+{
+ WOG_MOUSE_LBUTTON, // left mouse button
+ WOG_MOUSE_RBUTTON, // right mouse button
+ WOG_MOUSE_MIDDLE, // middle button
+};
+
+typedef struct wog_Event
+{
+ int type;
+ union // event value
+ {
+ int key; // for key, simply use windows virtual key value
+ // see https://msdn.microsoft.com/en-us/library/windows/desktop/dd375731(v=vs.85).aspx
+ struct // for mouse motion
+ {
+ int x, y; // mouse position
+ }pos;
+ int wheel; // 1 indicate scroll up and -1 indicate scrool down
+ int button; // mouse button
+ };
+}wog_Event;
+
+typedef struct {
+ int width, height, channels;
+ unsigned char* buffer;
+} wog_Surface;
+
+/**
+* Entry of user program which defined in user project. You need provide
+* this function's defination.
+*/
+#define main wog_main
+extern int wog_main(int argc, char* argv[]);
+
+typedef struct wog_Window wog_Window;
+
+#if WOG_API == WOG_GL
+/**
+* Struct that hold opengl context generated by wglCreateContext() which
+* defined in opengl32.lib
+*/
+typedef struct wog_GLContext wog_GLContext;
+#endif
+
+enum // window style flag
+{
+ WOG_HIDDEN = 4,
+ WOG_RESIZABLE = 8,
+ WOG_DISABLE = 16,
+};
+
+/**
+* Create window with given configures.
+* flag would be:
+* WOG_HIDDEN
+* WOG_RESIZABLE
+* WOG_DISABLE
+* or just 0;
+*/
+wog_Window* wog_createWindow(const char* title, int width, int height, int x, int y, uint32 flags);
+
+#if WOG_API == WOG_GL
+wog_GLContext* wog_createGLContext(wog_Window* wnd);
+
+int wog_makeCurrent(wog_Window* wnd, wog_GLContext* cxt);
+
+void wog_destroyGLContext(wog_GLContext* cxt);
+#endif
+
+void wog_destroyWindow(wog_Window* wnd);
+
+#if WOG_API == WOG_GL
+void wog_swapBuffers(wog_Window* wnd);
+#endif
+
+#if WOG_API == WOG_GDI
+void wog_updateSurface(wog_Window* wnd);
+#endif
+
+int wog_pollEvent(wog_Window* wnd, wog_Event* e);
+
+void wog_getMouse(wog_Window* wnd, int *x, int *y);
+
+// get current ticks
+int wog_tick();
+
+void wog_sleep(int ms);
+
+void wog_getwindowsize(wog_Window* wnd, int* width, int* height);
+
+void wog_show(wog_Window* wnd);
+
+void wog_hide(wog_Window* wnd);
+
+typedef void(*wog_Callback)(wog_Window* wnd) ;
+
+/**
+* Register callback functions.
+*/
+void wog_registerResizeCallback(wog_Callback cal);
+void wog_registerQuitCallback(wog_Callback cal);
+
+wog_Surface* wog_getsurface(wog_Window* wnd);
+
+#endif
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 4cf83e5..58615d1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,12 +1,10 @@
-#include <SDL2/SDL.h>
#include <stdio.h>
#include <windows.h>
#include "math/math.h"
#include "util/assert.h"
#include "ssr.h"
#include "example/example.h"
-
-SDL_Surface* suf;
+#include "extern/wog.h"
#define SCREEN_WIDTH 600
#define SCREEN_HEIGHT 480
@@ -20,7 +18,7 @@ F ondraw;
/*macro������Ҫ��һ����*/
/*https://stackoverflow.com/questions/1489932/how-to-concatenate-twice-with-the-c-preprocessor-and-expand-a-macro-as-in-arg*/
#define SETEXAMPLEF(f, e) \
-f = f##e;
+f = f##_##e;
#define SETEXAMPLE(i) \
SETEXAMPLEF(onload, i)\
@@ -28,46 +26,35 @@ SETEXAMPLEF(ondraw, i)\
SETEXAMPLEF(onevent, i)\
SETEXAMPLEF(onupdate, i)
-int main(int argc, char* argv[])
-{
- if (SDL_Init(SDL_INIT_EVENTS | SDL_INIT_TIMER | SDL_INIT_VIDEO) < 0)
- return 1;
- SDL_Window* wnd = SDL_CreateWindow("Soft Shade Room", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
- SDL_Event e;
- suf = SDL_GetWindowSurface(wnd);
- /* ARGB format */
- ssr_assert(suf->format->BitsPerPixel == 32);
- ssr_assert(suf->format->Rshift == 16);
- ssr_assert(suf->format->Gshift == 8);
- ssr_assert(suf->format->Bshift == 0);
-
+int main(int argc, char* argv[]) {
+ wog_Window* wnd = wog_createWindow("test", SCREEN_WIDTH, SCREEN_HEIGHT, 500, 500, 0);
+ wog_show(wnd);
+ wog_Surface* surface = wog_getsurface(wnd); // ARGB format
/* init ssr */
ssr_Config config = {
SCREEN_WIDTH, SCREEN_HEIGHT,
0,
- suf->pixels
+ surface->buffer
};
ssr_init(&config);
-
SETEXAMPLE(EXAMPLECUR);
-
onload(0);
-
/* main loop */
- uint prev = SDL_GetTicks();
+ uint prev = wog_tick();
uint dt = 0;
uint frame_count = 0;
uint time_stamp = 0;
+ wog_Event e;
while (1) {
- while (SDL_PollEvent(&e)) {
- if (e.type == SDL_QUIT) {
+ while (wog_pollEvent(wnd, &e)) {
+ if (e.type == WOG_ECLOSE) {
goto quit;
} else {
onevent(&e);
}
}
-
- dt = SDL_GetTicks() - prev;
+
+ dt = wog_tick() - prev;
prev += dt;
time_stamp += dt;
++frame_count;
@@ -76,17 +63,16 @@ int main(int argc, char* argv[])
time_stamp -= 1000;
frame_count = 0;
}
-
+
onupdate(&dt);
ondraw(0);
ssr_present();
- SDL_UpdateWindowSurface(wnd);
-
- /*Sleep(1);*/ /*reduce cpu using*/
+ wog_updateSurface(wnd);
+ Sleep(1); /*reduce cpu using*/
}
+
+ quit:
+ wog_destroyWindow(wnd);
-quit:
- SDL_Quit();
-
- return 0;
+ return 1;
}
diff --git a/src/math/mat.c b/src/math/mat.c
index 8b32ba2..592dd5e 100644
--- a/src/math/mat.c
+++ b/src/math/mat.c
@@ -706,7 +706,7 @@ bool mat4_toeuler(Mat4* in, Euler* out) {
}
}
-/*from unity src*/
+/*from unity source*/
/*https://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/*/
void mat4_toquat(Mat4* in, Quat* out) {
// Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes
diff --git a/src/math/math.h b/src/math/math.h
index 1c2a9c0..1c65c01 100644
--- a/src/math/math.h
+++ b/src/math/math.h
@@ -179,6 +179,7 @@ void vec3_lerp(Vec3* v1, Vec3* v2, float t, Vec3* out);
void vec3_slerp(Vec3* v1, Vec3* v2, float t, Vec3* out);
void vec4_dividew(Vec4* v, Vec3* out);
+void vec4_dividewnoz(Vec4* v, Vec4* out);
void vec4_tostring(Vec4* v, char buf[]);
void vec4_print(Vec4* v);
diff --git a/src/math/vec4.c b/src/math/vec4.c
index 71ec6b6..3d6df46 100644
--- a/src/math/vec4.c
+++ b/src/math/vec4.c
@@ -16,6 +16,15 @@ void vec4_dividew(Vec4* v, Vec3* out) {
out->z = v->z * w;
}
+void vec4_dividewnoz(Vec4* v, Vec4* out) {
+ ssr_assert(out && v);
+ float w = 1.f / v->w;
+ out->x = v->x * w;
+ out->y = v->y * w;
+ out->z = v->z;
+ out->w = v->w;
+}
+
void vec4_tostring(Vec4* v, char buf[]) {
sprintf(buf, "%8.3f %8.3f %8.3f %8.3f", v->x, v->y, v->z, v->w);
}
diff --git a/src/shaders/common.h b/src/shaders/common.h
index cae9309..7e0ca5f 100644
--- a/src/shaders/common.h
+++ b/src/shaders/common.h
@@ -1,12 +1,33 @@
#ifndef _SOFTSHADEROOM_COMMON_HEADER_H_
#define _SOFTSHADEROOM_COMMON_HEADER_H_
-
-/*
-** Common shader header
-*/
#include "../core/shader.h"
-extern void ssrR_putline(int x0, int y0, int x1, int y1, Color color);
+/************************************************************************/
+/* constants */
+/************************************************************************/
+
+#define SSR_PI 3.14159265359f
+#define SSR_TWO_PI 6.28318530718f
+#define SSR_FOUR_PI 12.56637061436f
+#define SSR_INV_PI 0.31830988618f
+#define SSR_INV_TWO_PI 0.15915494309f
+#define SSR_INV_FOUR_PI 0.07957747155f
+#define SSR_HALF_PI 1.57079632679f
+#define SSR_INV_HALF_PI 0.636619772367f
+
+/************************************************************************/
+/* variables */
+/************************************************************************/
+
+#define _model_matrix (uniforms->model)
+#define _view_matrix (uniforms->view)
+#define _proj_matrix (uniforms->projection)
+#define _mvp_matrix (uniforms->mvp)
+#define _it_model_matrix /*inverse-transpose model matrix if needed*/
+
+/************************************************************************/
+/* functions */
+/************************************************************************/
/*shader built in functions*/
Vec3 normal_from_color(Color32 c32);
@@ -20,6 +41,8 @@ Vec2 texsize(Texture* texture);
do{ \
if(cond) return 0; \
}while(0)
+#define discard() return 0
+#define keep() return 1
#define MVP_PROCESS \
do{ \
@@ -27,18 +50,16 @@ static Vec4 p; p.xyz = in->vertex->position; p.w = 1; \
mat4_mulvec4(uniforms->mvp, &p, clipcoord); \
}while(0)
-#define _model_matrix (uniforms->model)
-#define _view_matrix (uniforms->view)
-#define _proj_matrix (uniforms->projection)
-#define _mvp_matrix (uniforms->mvp)
-#define _inverse_model_matrix (uniforms->inverse_model)
-
#define object2clip(pos, out) mat4_mulvec4(_mvp_matrix, pos, out);
/*need defined _it_model_matrix of model matrix, i-nverse, t-ranspose*/
#define object2world_normal(normal, out) \
mat4_mulvec4(_it_model_matrix, normal, out)
-
+/*take sample from normal map and translate to normal*/
+#define unpack_normal(color, out_v3) \
+out_v3->x = color.x * 2 - 1; \
+out_v3->y = color.y * 2 - 1; \
+out_v3->z = color.z * 2 - 1;
#endif
\ No newline at end of file
diff --git a/src/window.h b/src/window.h
new file mode 100644
index 0000000..8983a89
--- /dev/null
+++ b/src/window.h
@@ -0,0 +1,8 @@
+#ifndef _SOFTSHADEROOM_WINDOW_H_
+#define _SOFTSHADEROOM_WINDOW_H_
+
+typedef struct {
+ const char* code;
+} Event;
+
+#endif
\ No newline at end of file
--
cgit v1.1-26-g67d0