ps
/
Lumenarium
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Got OpenGL kind of working again. Lots of other work recreating functionality as well, but none of its done yet.

This commit is contained in:
Peter Slattery 2019-07-21 23:30:53 -07:00
parent 134a0a1e20
commit 0f220c608d
16 changed files with 1508 additions and 931 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
build.bat Normal file
View File

@ -0,0 +1,39 @@
@echo off
set ProjectDevRoot=C:\projects
set ProjectName=foldhaus
set ProjectDevPath=%ProjectDevRoot%\%ProjectName%
pushd %ProjectDevPath%
IF NOT EXIST .\build\ mkdir .\build
C:\programs\ctime\ctime.exe -begin %ProjectDevPath%\build\win32_foldhaus_build_time.ctm
set CommonCompilerFlags=-nologo -DDEBUG=1 -DPLATFORM_WINDOWS -FC -WX -W4 -Z7 -Oi -GR- -EHsc -EHa- -MTd -fp:fast -fp:except-
set CommonCompilerFlags=-wd4127 -wd4702 -wd4101 -wd4505 -wd4100 -wd4189 -wd4244 -wd4201 -wd4996 -I%CommonLibs% -O2 %CommonCompilerFlags%
set CommonLinkerFlags= -opt:ref
pushd build
del *.pdb > NUL 2> NUL
REM Compile and Run the Preprocessor
REM cl %CommonCompilerFlags% ..\meta\foldhaus_meta.cpp /link %CommonLinkerFlags%
pushd ..\src\
REM ..\build\foldhaus_meta.exe C:\projects\foldhaus\src\
popd
REM cl %CommonCompilerFlags% F:\src\foldhaus_util_radialumia_file_converter.cpp /link %CommonLinkerFlags%
REM foldhaus_util_radialumia_file_converter.exe
echo WAITING FOR PDB TO WRITE > lock.tmp
cl %CommonCompilerFlags% ..\src\foldhaus_app.cpp /Fefoldhaus.dll /LD /link %CommonLinkerFlags% /EXPORT:InitializeApplication /EXPORT:UpdateAndRender /EXPORT:CleanupApplication /EXPORT:ReloadStaticData
set LastError=%ERRORLEVEL%
del lock.tmp
cl %CommonCompilerFlags% ..\src\win32_foldhaus.cpp /link %CommonLinkerFlags% user32.lib winmm.lib gdi32.lib opengl32.lib dsound.lib Ws2_32.lib Comdlg32.lib -incremental:no
C:\programs\ctime\ctime.exe -end C:\projects\foldhaus\build\win32_foldhaus_build_time.ctm %LastError%
C:\programs\ctime\ctime.exe -stats C:\projects\foldhaus\build\win32_foldhaus_build_time.ctm
popd

57
foldhaus_app.cpp
View File

@ -249,8 +249,8 @@ DrawLEDsInBufferRangeJob (s32 ThreadID, void* JobData)
v4 P2 = ModelMatrix * P2_In; v4 P2 = ModelMatrix * P2_In;
v4 P3 = ModelMatrix * P3_In; v4 P3 = ModelMatrix * P3_In;
PushTri3DOnBatch(Data->Batch, P0, P1, P2, UV0, UV1, UV2, Color); PushTri3DOnBatch(Data->Batch, P0, P1, P2, UV0, UV1, UV2, Color, Color, Color);
PushTri3DOnBatch(Data->Batch, P0, P2, P3, UV0, UV2, UV3, Color); PushTri3DOnBatch(Data->Batch, P0, P2, P3, UV0, UV2, UV3, Color, Color, Color);
LED++; LED++;
} }
@ -418,11 +418,49 @@ INITIALIZE_APPLICATION(InitializeApplication)
if (stbtt_InitFont(&StbFont, FontFile.Base, stbtt_GetFontOffsetForIndex(FontFile.Base, 0))) if (stbtt_InitFont(&StbFont, FontFile.Base, stbtt_GetFontOffsetForIndex(FontFile.Base, 0)))
{ {
bitmap_font* Font = PushStruct(State->Permanent, bitmap_font); bitmap_font* Font = PushStruct(State->Permanent, bitmap_font);
Font->Atlas = PushTexture(State);
RenderStbttToBitmapFont(Font, StbFont, FontSize, 512, State->Permanent, State->Transient );
Font->BitmapWidth = 512;
Font->BitmapHeight = 512;
Font->BitmapBytesPerPixel = 4;
Font->BitmapMemory = PushArray(State->Permanent, u8, Font->BitmapWidth * Font->BitmapHeight * Font->BitmapBytesPerPixel);;
Font->BitmapStride = Font->BitmapWidth * Font->BitmapBytesPerPixel;
platform_font_info FontInfo = Context.PlatformGetFontInfo("Anonymous Pro", 14);
Font->PixelHeight = FontInfo.PixelHeight;
Font->Ascent = FontInfo.Ascent;
Font->Descent = FontInfo.Descent;
Font->Leading = FontInfo.Leading;
Font->MaxCharWidth = FontInfo.MaxCharWidth;
Font->CodepointDictionarySize = (FontInfo.CodepointOnePastLast - FontInfo.CodepointStart);
Font->CodepointDictionaryCount = 0;
Font->CodepointKeys = PushArray(State->Permanent, char, Font->CodepointDictionarySize);
Font->CodepointValues = PushArray(State->Permanent, codepoint_bitmap, Font->CodepointDictionarySize);
for (s32 Codepoint = FontInfo.CodepointStart;
Codepoint < FontInfo.CodepointOnePastLast;
Codepoint++)
{
u32 CodepointX, CodepointY;
GetNextCodepointOffset(Font, &CodepointX, &CodepointY);
u32 CodepointW, CodepointH;
Context.PlatformDrawFontCodepoint(
Font->BitmapMemory,
Font->BitmapWidth,
Font->BitmapHeight,
CodepointX, CodepointY,
(char)Codepoint, FontInfo,
&CodepointW, &CodepointH);
AddCodepointToFont(Font, Codepoint, 0, 0, CodepointW, CodepointH, CodepointX, CodepointY);
}
State->Interface.Font = Font; State->Interface.Font = Font;
State->Font = Font; State->Font = Font;
Font->Atlas->Handle = Context.PlatformGetGPUTextureHandle(Font->Atlas->Memory, Font->Atlas->Width, Font->Atlas->Height); Font->BitmapTextureHandle = Context.PlatformGetGPUTextureHandle(Font->BitmapMemory,
Font->BitmapWidth, Font->BitmapHeight);
} }
} else {} } else {}
} }
@ -570,12 +608,9 @@ UPDATE_AND_RENDER(UpdateAndRender)
m44 ModelViewMatrix = GetCameraModelViewMatrix(State->Camera); m44 ModelViewMatrix = GetCameraModelViewMatrix(State->Camera);
m44 ProjectionMatrix = GetCameraPerspectiveProjectionMatrix(State->Camera); m44 ProjectionMatrix = GetCameraPerspectiveProjectionMatrix(State->Camera);
RenderBuffer->ViewWidth = Context.WindowWidth;
RenderBuffer->ViewHeight = Context.WindowHeight;
r32 LEDHalfWidth = .5f; r32 LEDHalfWidth = .5f;
PushRenderPerspective(RenderBuffer, Context.WindowWidth, Context.WindowHeight, State->Camera); PushRenderPerspective(RenderBuffer, 0, 0, Context.WindowWidth, Context.WindowHeight, State->Camera);
PushRenderClearScreen(RenderBuffer); PushRenderClearScreen(RenderBuffer);
DEBUG_IF(GlobalDebugServices->Interface.RenderSculpture) // DebugServices RenderSculpture Toggle DEBUG_IF(GlobalDebugServices->Interface.RenderSculpture) // DebugServices RenderSculpture Toggle
@ -634,7 +669,7 @@ UPDATE_AND_RENDER(UpdateAndRender)
DEBUG_TRACK_SCOPE(DrawInterface); DEBUG_TRACK_SCOPE(DrawInterface);
PushRenderOrthographic(RenderBuffer, Context.WindowWidth, Context.WindowHeight); PushRenderOrthographic(RenderBuffer, 0, 0, Context.WindowWidth, Context.WindowHeight);
// Universe Data View // Universe Data View
if (State->DrawUniverseOutputDisplay) if (State->DrawUniverseOutputDisplay)
@ -698,7 +733,7 @@ UPDATE_AND_RENDER(UpdateAndRender)
v2{Context.WindowWidth, Context.WindowHeight}, v2{Context.WindowWidth, Context.WindowHeight},
0, State->Interface, Input); 0, State->Interface, Input);
v2 ButtonDim = v2{200, State->Interface.Font->NewLineYOffset + 10}; v2 ButtonDim = v2{200, (r32)NewLineYOffset(*State->Interface.Font) + 10};
v2 ButtonPos = v2{State->Interface.Margin.x, Context.WindowHeight - (ButtonDim.y + 10)}; v2 ButtonPos = v2{State->Interface.Margin.x, Context.WindowHeight - (ButtonDim.y + 10)};
button_result LoadAssemblyBtn = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim, button_result LoadAssemblyBtn = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim,
MakeStringLiteral("Load Assembly"), MakeStringLiteral("Load Assembly"),

10
foldhaus_debug_visuals.h
View File

@ -3,7 +3,7 @@ DrawDebugInterface (render_command_buffer* RenderBuffer, r32 StartX, interface_c
{ {
DEBUG_TRACK_SCOPE(DrawDebugInterface); DEBUG_TRACK_SCOPE(DrawDebugInterface);
v2 TopOfDebugView = v2{StartX, WindowHeight - (Interface.Font->NewLineYOffset + 5)}; v2 TopOfDebugView = v2{StartX, WindowHeight - (NewLineYOffset(*Interface.Font) + 5)};
v2 TopOfScreenLinePos = TopOfDebugView; v2 TopOfScreenLinePos = TopOfDebugView;
arena_snapshot StartTempMemory = TakeSnapshotOfArena(*Transient); arena_snapshot StartTempMemory = TakeSnapshotOfArena(*Transient);
@ -24,7 +24,7 @@ DrawDebugInterface (render_command_buffer* RenderBuffer, r32 StartX, interface_c
(u32)FramesPerSecond); (u32)FramesPerSecond);
DrawString(RenderBuffer, DebugString, Interface.Font, Interface.FontSize, TopOfScreenLinePos, WhiteV4); DrawString(RenderBuffer, DebugString, Interface.Font, Interface.FontSize, TopOfScreenLinePos, WhiteV4);
v2 ButtonDim = v2{200, Interface.Font->NewLineYOffset + 10}; v2 ButtonDim = v2{200, (r32)NewLineYOffset(*Interface.Font) + 10};
TopOfScreenLinePos.y -= ButtonDim.y + 10; TopOfScreenLinePos.y -= ButtonDim.y + 10;
v2 ButtonPos = TopOfScreenLinePos; v2 ButtonPos = TopOfScreenLinePos;
button_result CameraBtn = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim, button_result CameraBtn = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim,
@ -52,7 +52,7 @@ DrawDebugInterface (render_command_buffer* RenderBuffer, r32 StartX, interface_c
button_result SendSACNDataBtn = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim, button_result SendSACNDataBtn = EvaluateButton(RenderBuffer, ButtonPos, ButtonPos + ButtonDim,
SACNButtonString, Interface, Input); SACNButtonString, Interface, Input);
TopOfScreenLinePos.y -= Interface.Font->NewLineYOffset + 10; TopOfScreenLinePos.y -= NewLineYOffset(*Interface.Font) + 10;
if (CameraBtn.Pressed) if (CameraBtn.Pressed)
{ {
@ -85,7 +85,7 @@ DrawDebugInterface (render_command_buffer* RenderBuffer, r32 StartX, interface_c
3, Camera.LookAt.y, 3, Camera.LookAt.y,
3, Camera.LookAt.z); 3, Camera.LookAt.z);
DrawString(RenderBuffer, DebugString, Interface.Font, Interface.FontSize, TopOfScreenLinePos, v4{1.0f, 1.0f, 1.0f, 1.0f}); DrawString(RenderBuffer, DebugString, Interface.Font, Interface.FontSize, TopOfScreenLinePos, v4{1.0f, 1.0f, 1.0f, 1.0f});
TopOfScreenLinePos.y -= Interface.Font->NewLineYOffset; TopOfScreenLinePos.y -= NewLineYOffset(*Interface.Font);
} }
if (GlobalDebugServices->Interface.ShowTrackedScopes) if (GlobalDebugServices->Interface.ShowTrackedScopes)
@ -127,7 +127,7 @@ DrawDebugInterface (render_command_buffer* RenderBuffer, r32 StartX, interface_c
Register, WhiteV4).x; Register, WhiteV4).x;
Register.x += GSMax(ColumnFourX - Register.x, 200.f); Register.x += GSMax(ColumnFourX - Register.x, 200.f);
TopOfScreenLinePos.y -= Interface.Font->NewLineYOffset; TopOfScreenLinePos.y -= NewLineYOffset(*Interface.Font);
} }

11
foldhaus_platform.h
View File

@ -30,6 +30,14 @@ typedef CLEANUP_APPLICATION(cleanup_application);
// Platform Functions // Platform Functions
typedef struct platform_font_info platform_font_info;
#define GET_FONT_INFO(name) platform_font_info name(char* FontName, s32 PixelHeight)
typedef GET_FONT_INFO(platform_get_font_info);
#define DRAW_FONT_CODEPOINT(name) void name(u8* DestBuffer, s32 DestBufferWidth, s32 DestBufferHeight, u32 XOffset, u32 YOffset, char Codepoint, platform_font_info FontInfo, u32* OutWidth, u32* OutHeight)
typedef DRAW_FONT_CODEPOINT(platform_draw_font_codepoint);
// Worker Threads // Worker Threads
#define THREADED_WORK_PROC(name) void name(s32 ThreadID, void* Data) #define THREADED_WORK_PROC(name) void name(s32 ThreadID, void* Data)
@ -106,7 +114,8 @@ struct context
platform_write_entire_file* PlatformWriteEntireFile; platform_write_entire_file* PlatformWriteEntireFile;
platform_get_file_path* PlatformGetFilePath; platform_get_file_path* PlatformGetFilePath;
platform_get_gpu_texture_handle* PlatformGetGPUTextureHandle; platform_get_gpu_texture_handle* PlatformGetGPUTextureHandle;
platform_get_font_info* PlatformGetFontInfo;
platform_draw_font_codepoint* PlatformDrawFontCodepoint;
platform_get_socket_handle* PlatformGetSocketHandle; platform_get_socket_handle* PlatformGetSocketHandle;
platform_get_send_address* PlatformGetSendAddress; platform_get_send_address* PlatformGetSendAddress;
platform_set_socket_option* PlatformSetSocketOption; platform_set_socket_option* PlatformSetSocketOption;

12
foldhaus_renderer.cpp
View File

@ -18,7 +18,7 @@ Render3DQuadBatch (u8* CommandData, s32 TriCount)
v4* Colors = (v4*)(CommandData + BATCH_3D_COLORS_OFFSET(TriCount)); v4* Colors = (v4*)(CommandData + BATCH_3D_COLORS_OFFSET(TriCount));
#if IMMEDIATE_MODE_RENDERING #if IMMEDIATE_MODE_RENDERING
glBegin(GL_TRIANGLES);
for (s32 Tri = 0; Tri < TriCount; Tri++) for (s32 Tri = 0; Tri < TriCount; Tri++)
{ {
v4 P0 = Vertecies[BATCH_3D_VERTEX_INDEX(Tri, 0)]; v4 P0 = Vertecies[BATCH_3D_VERTEX_INDEX(Tri, 0)];
@ -33,9 +33,8 @@ Render3DQuadBatch (u8* CommandData, s32 TriCount)
OpenGLDraw3DTri(P0, P1, P2, UV0, UV1, UV2, C0, C1, C2); OpenGLDraw3DTri(P0, P1, P2, UV0, UV1, UV2, C0, C1, C2);
} }
glEnd();
#else #else
OpenGLRenderTriBuffer((u8*)Vertecies, 4, UVs, 2, Colors, 4, TriCount * 3); OpenGLRenderTriBuffer((u8*)Vertecies, 4, (u8*)UVs, 2, (u8*)Colors, 4, TriCount * 3);
#endif #endif
} }
@ -67,7 +66,7 @@ Render2DQuadBatch (u8* CommandData, s32 QuadCount)
} }
} }
#else #else
OpenGLRenderTriBuffer((u8*)Vertecies, 2, UVs, 2, Colors, 4, QuadCount * 2 * 3); OpenGLRenderTriBuffer((u8*)Vertecies, 2, (u8*)UVs, 2, (u8*)Colors, 4, QuadCount * 2 * 3);
#endif #endif
} }
@ -76,8 +75,6 @@ RenderCommandBuffer (render_command_buffer CommandBuffer)
{ {
DEBUG_TRACK_FUNCTION; DEBUG_TRACK_FUNCTION;
glViewport(0, 0, CommandBuffer.ViewWidth, CommandBuffer.ViewHeight);
glMatrixMode(GL_TEXTURE_2D); glMatrixMode(GL_TEXTURE_2D);
glLoadIdentity(); glLoadIdentity();
@ -100,6 +97,9 @@ RenderCommandBuffer (render_command_buffer CommandBuffer)
{ {
render_command_set_render_mode* Command = (render_command_set_render_mode*)(CommandHeader + 1); render_command_set_render_mode* Command = (render_command_set_render_mode*)(CommandHeader + 1);
glViewport(Command->ViewOffsetX, Command->ViewOffsetY,
Command->ViewWidth, Command->ViewHeight);
LoadModelView(Command->ModelView.E); LoadModelView(Command->ModelView.E);
LoadProjection(Command->Projection.E); LoadProjection(Command->Projection.E);

67
foldhaus_renderer.h
View File

@ -181,6 +181,7 @@ struct render_command_set_render_mode
{ {
m44 ModelView; m44 ModelView;
m44 Projection; m44 Projection;
r32 ViewOffsetX, ViewOffsetY;
r32 ViewWidth, ViewHeight; r32 ViewWidth, ViewHeight;
b32 UseDepthBuffer; b32 UseDepthBuffer;
}; };
@ -280,7 +281,10 @@ ThreadSafeIncrementQuadConstructorCount (render_quad_batch_constructor* Construc
} }
inline void inline void
PushTri3DOnBatch (render_quad_batch_constructor* Constructor, v4 P0, v4 P1, v4 P2, v2 UV0, v2 UV1, v2 UV2, v4 Color) PushTri3DOnBatch (render_quad_batch_constructor* Constructor,
v4 P0, v4 P1, v4 P2,
v2 UV0, v2 UV1, v2 UV2,
v4 C0, v4 C1, v4 C2)
{ {
s32 Tri = ThreadSafeIncrementQuadConstructorCount(Constructor); s32 Tri = ThreadSafeIncrementQuadConstructorCount(Constructor);
// Vertecies // Vertecies
@ -292,17 +296,28 @@ PushTri3DOnBatch (render_quad_batch_constructor* Constructor, v4 P0, v4 P1, v4
Constructor->UVs[BATCH_3D_UV_INDEX(Tri, 1)] = UV1; Constructor->UVs[BATCH_3D_UV_INDEX(Tri, 1)] = UV1;
Constructor->UVs[BATCH_3D_UV_INDEX(Tri, 2)] = UV1; Constructor->UVs[BATCH_3D_UV_INDEX(Tri, 2)] = UV1;
// Color V0 // Color V0
Constructor->ColorsV[BATCH_3D_COLOR_INDEX(Tri, 0)] = Color; Constructor->ColorsV[BATCH_3D_COLOR_INDEX(Tri, 0)] = C0;
Constructor->ColorsV[BATCH_3D_COLOR_INDEX(Tri, 1)] = Color; Constructor->ColorsV[BATCH_3D_COLOR_INDEX(Tri, 1)] = C1;
Constructor->ColorsV[BATCH_3D_COLOR_INDEX(Tri, 2)] = Color; Constructor->ColorsV[BATCH_3D_COLOR_INDEX(Tri, 2)] = C2;
}; };
internal void internal void
PushQuad3DOnBatch (render_quad_batch_constructor* Constructor, v4 P0, v4 P1, v4 P2, v4 P3, v2 UVMin, v2 UVMax, v4 Color) PushQuad3DOnBatch (render_quad_batch_constructor* Constructor, v4 P0, v4 P1, v4 P2, v4 P3, v2 UVMin, v2 UVMax, v4 Color)
{ {
Assert(Constructor->Count < Constructor->Max); Assert(Constructor->Count < Constructor->Max);
PushTri3DOnBatch(Constructor, P0, P1, P2, UVMin, v2{UVMax.x, UVMin.y}, UVMax, Color); PushTri3DOnBatch(Constructor, P0, P1, P2, UVMin, v2{UVMax.x, UVMin.y}, UVMax, Color, Color, Color);
PushTri3DOnBatch(Constructor, P0, P2, P3, UVMin, UVMax, v2{UVMin.x, UVMax.y}, Color); PushTri3DOnBatch(Constructor, P0, P2, P3, UVMin, UVMax, v2{UVMin.x, UVMax.y}, Color, Color, Color);
}
internal void
PushQuad3DOnBatch (render_quad_batch_constructor* Constructor,
v4 P0, v4 P1, v4 P2, v4 P3,
v2 UV0, v2 UV1, v2 UV2, v2 UV3,
v4 C0, v4 C1, v4 C2, v4 C3)
{
Assert(Constructor->Count < Constructor->Max);
PushTri3DOnBatch(Constructor, P0, P1, P2, UV0, UV1, UV2, C0, C1, C2);
PushTri3DOnBatch(Constructor, P0, P2, P3, UV0, UV2, UV3, C0, C2, C3);
} }
internal void internal void
@ -418,19 +433,26 @@ PushRenderCommand_ (render_command_buffer* CommandBuffer, render_command_type Co
return Result; return Result;
} }
internal void internal render_command_set_render_mode*
PushRenderPerspective (render_command_buffer* Buffer, s32 ViewWidth, s32 ViewHeight, camera Camera) PushRenderPerspective (render_command_buffer* Buffer, s32 OffsetX, s32 OffsetY, s32 ViewWidth, s32 ViewHeight, camera Camera)
{ {
render_command_set_render_mode* Command = PushRenderCommand(Buffer, render_command_set_render_mode); render_command_set_render_mode* Command = PushRenderCommand(Buffer, render_command_set_render_mode);
Command->ModelView = GetCameraModelViewMatrix(Camera); Command->ModelView = GetCameraModelViewMatrix(Camera);
Command->Projection = GetCameraPerspectiveProjectionMatrix(Camera); Command->Projection = GetCameraPerspectiveProjectionMatrix(Camera);
Command->ViewWidth;
Command->ViewHeight; Command->ViewOffsetX = (r32)OffsetX;
Command->ViewOffsetY = (r32)OffsetY;
Command->ViewWidth = (r32)ViewWidth;
Command->ViewHeight = (r32)ViewHeight;
Command->UseDepthBuffer = true; Command->UseDepthBuffer = true;
return Command;
} }
internal void internal void
PushRenderOrthographic (render_command_buffer* Buffer, s32 ViewWidth, s32 ViewHeight) PushRenderOrthographic (render_command_buffer* Buffer, s32 OffsetX, s32 OffsetY, s32 ViewWidth, s32 ViewHeight)
{ {
render_command_set_render_mode* Command = PushRenderCommand(Buffer, render_command_set_render_mode); render_command_set_render_mode* Command = PushRenderCommand(Buffer, render_command_set_render_mode);
Command->ModelView = m44{ Command->ModelView = m44{
@ -448,8 +470,12 @@ PushRenderOrthographic (render_command_buffer* Buffer, s32 ViewWidth, s32 ViewHe
0, 0, 1, 0, 0, 0, 1, 0,
-1, -1, 0, 1 -1, -1, 0, 1
}; };
Command->ViewWidth;
Command->ViewHeight; Command->ViewOffsetX = (r32)OffsetX;
Command->ViewOffsetY = (r32)OffsetY;
Command->ViewWidth = ViewWidth;
Command->ViewHeight = ViewHeight;
Command->UseDepthBuffer = false;; Command->UseDepthBuffer = false;;
} }
@ -531,6 +557,21 @@ PushRenderTexture2DBatch(render_command_buffer* Buffer, s32 QuadCount,
return Result; return Result;
} }
internal render_quad_batch_constructor
PushRenderTexture2DBatch (render_command_buffer* Buffer, s32 QuadCount,
u8* TextureMemory, s32 TextureHandle, s32 TextureWidth, s32 TextureHeight,
s32 TextureBytesPerPixel, s32 TextureStride)
{
render_texture Texture = render_texture{
TextureMemory,
TextureHandle,
TextureWidth,
TextureHeight,
TextureBytesPerPixel,
TextureStride};
return PushRenderTexture2DBatch(Buffer, QuadCount, Texture);
}
internal void internal void
PushRenderTexture2D (render_command_buffer* Buffer, v2 Min, v2 Max, v4 Color, PushRenderTexture2D (render_command_buffer* Buffer, v2 Min, v2 Max, v4 Color,
v2 UVMin, v2 UVMax, v2 UVMin, v2 UVMax,

101
gs_font.h
View File

@ -1,6 +1,107 @@
#ifndef GS_FONT_H #ifndef GS_FONT_H
struct codepoint_bitmap
{
s32 XOffset, YOffset;
s32 Width, Height;
s32 BitmapX, BitmapY;
};
struct bitmap_font
{
char* Name;
s32 PixelHeight;
s32 Ascent;
s32 Descent;
s32 Leading;
s32 MaxCharWidth;
u32 CodepointDictionarySize;
u32 CodepointDictionaryCount;
char* CodepointKeys;
codepoint_bitmap* CodepointValues;
u8* BitmapMemory;
u32 BitmapWidth;
u32 BitmapHeight;
u32 BitmapBytesPerPixel;
u32 BitmapStride;
s32 BitmapTextureHandle;
};
internal bitmap_font
InitializeTextFont (s32 CodepointCount, u8* CodepointMemory, s32 CodepointMemorySize)
{
bitmap_font Result = {};
Result.CodepointDictionarySize = CodepointCount;
Result.CodepointDictionaryCount = 0;
Assert(CodepointMemorySize >= (sizeof(char) + sizeof(codepoint_bitmap)) * CodepointCount);
Result.CodepointKeys = (char*)CodepointMemory;
Result.CodepointValues = (codepoint_bitmap*)(CodepointMemory + (sizeof(char) * CodepointCount));
}
#define GLYPH_SKIRT 1
internal void
GetNextCodepointOffset (bitmap_font* Font, u32* X, u32* Y)
{
s32 LastCodepointIndex = Font->CodepointDictionaryCount - 1;
if (LastCodepointIndex >= 0)
{
codepoint_bitmap BitmapInfo = Font->CodepointValues[LastCodepointIndex];
u32 TempX = BitmapInfo.XOffset + BitmapInfo.Width + GLYPH_SKIRT;
u32 TempY = BitmapInfo.YOffset;
if (TempX + Font->MaxCharWidth > Font->BitmapWidth)
{
TempX = 0;
TempY -= BitmapInfo.Height + GLYPH_SKIRT;
}
*X = TempX;
*Y = TempY;
}
else
{
*X = 0;
*Y = 0;
}
}
internal void
AddCodepointToFont (bitmap_font* Font, char Codepoint,
s32 XOffset, s32 YOffset, s32 Width, s32 Height,
s32 BitmapX, s32 BitmapY)
{
Assert(Font->CodepointDictionaryCount < Font->CodepointDictionarySize);
char* Key = Font->CodepointKeys + Font->CodepointDictionaryCount;
codepoint_bitmap* Value = Font->CodepointValues + Font->CodepointDictionaryCount;
Font->CodepointDictionaryCount++;
*Key = Codepoint;
*Value = {XOffset, YOffset, Width, Height, BitmapX, BitmapY};
}
internal s32
GetIndexForCodepoint (bitmap_font Font, char Codepoint)
{
s32 Result = -1;
for (u32 i = 0; i < Font.CodepointDictionaryCount; i++)
{
if (Font.CodepointKeys[i] == Codepoint)
{
Result = i;
break;
}
}
return Result;
}
inline s32
NewLineYOffset (bitmap_font Font)
{
s32 Result = Font.Ascent - Font.Descent;
return Result;
}
#define GS_FONT_H #define GS_FONT_H
#endif #endif

4
gs_input.h
View File

@ -1,4 +0,0 @@
#ifndef GS_INPUT_H
#define GS_INPUT_H
#endif

100
gs_platform.h
View File

@ -1,5 +1,51 @@
#ifndef GS_PLATFORM_H #ifndef GS_PLATFORM_H
#ifndef GS_LANGUAGE_H
// Types
typedef signed char b8;
typedef short int b16;
typedef int b32;
typedef long long int b64;
typedef unsigned char u8;
typedef unsigned short int u16;
typedef unsigned int u32;
typedef unsigned long long int u64;
typedef signed char s8;
typedef short int s16;
typedef int s32;
typedef long long int s64;
typedef float r32;
typedef double r64;
#define internal static
#define local_persist static
#define global_variable static
#ifdef DEBUG
#define Assert(condition) if(!(condition)) { *((int *)0) = 5; }
#define InvalidCodePath Assert(0)
#define InvalidDefaultCase default: { InvalidCodePath; }
#endif
#endif
#ifdef PLATFORM_WINDOWS
#include "gs_win32.h"
#endif
struct window_info
{
char* Name;
s32 Width;
s32 Height;
};
typedef struct window window;
#define PLATFORM_MEMORY_NO_ERROR 0
struct platform_memory_result struct platform_memory_result
{ {
u8* Base; u8* Base;
@ -7,7 +53,21 @@ struct platform_memory_result
s32 Error; s32 Error;
}; };
#define PLATFORM_MEMORY_NO_ERROR 0 struct texture_buffer
{
u8* Memory;
s32 Width;
s32 Height;
s32 Pitch;
s32 BytesPerPixel;
};
struct system_path
{
char* Path;
s32 PathLength;
s32 IndexOfLastSlash;
};
#define PLATFORM_ALLOC(name) platform_memory_result name(s32 Size) #define PLATFORM_ALLOC(name) platform_memory_result name(s32 Size)
typedef PLATFORM_ALLOC(platform_alloc); typedef PLATFORM_ALLOC(platform_alloc);
@ -21,28 +81,32 @@ typedef PLATFORM_READ_ENTIRE_FILE(platform_read_entire_file);
#define PLATFORM_WRITE_ENTIRE_FILE(name) b32 name(char* Path, u8* Contents, s32 Size) #define PLATFORM_WRITE_ENTIRE_FILE(name) b32 name(char* Path, u8* Contents, s32 Size)
typedef PLATFORM_WRITE_ENTIRE_FILE(platform_write_entire_file); typedef PLATFORM_WRITE_ENTIRE_FILE(platform_write_entire_file);
#define PLATFORM_GET_FILE_PATH(name) #define PLATFORM_GET_FILE_PATH(name) b32 name(char* PathBuffer, s32 BufferLength)
typedef PLATFORM_GET_FILE_PATH(platform_get_file_path); typedef PLATFORM_GET_FILE_PATH(platform_get_file_path);
#define PLATFORM_GET_GPU_TEXTURE_HANDLE(name) #define PLATFORM_GET_GPU_TEXTURE_HANDLE(name) s32 name(u8* Memory, s32 Width, s32 Height)
typedef PLATFORM_GET_GPU_TEXTURE_HANDLE(platform_get_gpu_texture_handle); typedef PLATFORM_GET_GPU_TEXTURE_HANDLE(platform_get_gpu_texture_handle);
#define PLATFORM_GET_SOCKET_HANDLE(name) typedef s32 platform_socket_handle;
typedef s32 platform_network_address_handle;
#define PLATFORM_GET_SOCKET_HANDLE(name) platform_socket_handle name(s32 AddressFamily, s32 Type, s32 Protocol)
typedef PLATFORM_GET_SOCKET_HANDLE(platform_get_socket_handle); typedef PLATFORM_GET_SOCKET_HANDLE(platform_get_socket_handle);
#define PLATFORM_GET_SEND_ADDRESS(name) #define PLATFORM_GET_SEND_ADDRESS_HANDLE(name) platform_network_address_handle name(s32 AddressFamily, u16 Port, u32 Address)
typedef PLATFORM_GET_SEND_ADDRESS(platform_get_send_address); typedef PLATFORM_GET_SEND_ADDRESS_HANDLE(platform_get_send_address);
#define PLATFORM_SET_SOCKET_OPTION(name) #define PLATFORM_SET_SOCKET_OPTION(name) s32 name(platform_socket_handle SocketHandle, s32 Level, s32 Option, const char* OptionValue, s32 OptionLength)
typedef PLATFORM_SET_SOCKET_OPTION(platform_set_socket_option); typedef PLATFORM_SET_SOCKET_OPTION(platform_set_socket_option);
#define PLATFORM_SEND_TO(name) #define PLATFORM_SEND_TO(name) s32 name(platform_socket_handle SocketHandle, platform_network_address_handle AddressHandle, const char* Buffer, s32 BufferLength, s32 Flags)
typedef PLATFORM_SEND_TO(platform_send_to); typedef PLATFORM_SEND_TO(platform_send_to);
#define PLATFORM_CLOSE_SOCKET(name) #define PLATFORM_CLOSE_SOCKET(name) void name(platform_socket_handle SocketHandle)
typedef PLATFORM_CLOSE_SOCKET(platform_close_socket); typedef PLATFORM_CLOSE_SOCKET(platform_close_socket);
#ifndef GS_INPUT
#define GS_INPUT
enum key_code enum key_code
{ {
KeyCode_Invalid, KeyCode_Invalid,
@ -119,6 +183,7 @@ struct input_frame
b32 KeysDown[(int)KeyCode_Count]; b32 KeysDown[(int)KeyCode_Count];
s32 StringInputUsed; s32 StringInputUsed;
char StringInput[INPUT_FRAME_STRING_LENGTH]; char StringInput[INPUT_FRAME_STRING_LENGTH];
s32 MouseX, MouseY, MouseScroll;
}; };
struct input struct input
@ -126,6 +191,7 @@ struct input
input_frame Frames[2]; input_frame Frames[2];
input_frame* New; input_frame* New;
input_frame* Old; input_frame* Old;
s32 MouseDownX, MouseDownY;
}; };
internal void InitializeInput (input* Input); internal void InitializeInput (input* Input);
@ -167,5 +233,19 @@ KeyTransitionedUp (input Input, key_code Key)
{ {
return !Input.New->KeysDown[Key] && Input.Old->KeysDown[Key]; return !Input.New->KeysDown[Key] && Input.Old->KeysDown[Key];
} }
#endif // GS_INPUT
internal window PlatformCreateWindow (char* Name, s32 Width, s32 Height);
// Time
internal r32
GetSecondsElapsed (s64 Start, s64 End, s64 PerformanceCountFrequency)
{
r32 Result = ((r32)(End - Start) / (r32) PerformanceCountFrequency);
return Result;
}
#define GS_PLATFORM_H #define GS_PLATFORM_H
#endif // GS_PLATFORM_H #endif // GS_PLATFORM_H

15
gs_string.h
View File

@ -243,9 +243,8 @@ static s32 IntToString (s32 Int, char* String, s32 Length, s32 Offset);
static float ParseFloat (char* String, s32 Length); static float ParseFloat (char* String, s32 Length);
static s32 FloatToString(float Float, char *String, s32 Length, s32 AfterPoint); static s32 FloatToString(float Float, char *String, s32 Length, s32 AfterPoint);
// Print F // PrintF
static s32 PrintF(string* String, char* Format, ...);
#define PrintString(str, format, ...) snprintf(str.Memory, str.Max, format, __VA_ARGS__); str.Length = CharArrayLength(str.Memory);
//////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////
// String Memory Function Declarations // String Memory Function Declarations
@ -1278,11 +1277,12 @@ FloatToString(float Float, char *String, s32 Length, s32 AfterPoint)
internal s32 internal s32
PrintStringF(char* Format, char* Destination, s32 DestLength, ...) PrintF (string* String, char* Format, ...)
{ {
va_list Args; va_list Args;
va_start(Args, DestLength); va_start(Args, Format);
#if 0
s32 LengthPrinted = 0; s32 LengthPrinted = 0;
char* DestChar = Destination; char* DestChar = Destination;
@ -1334,9 +1334,10 @@ PrintStringF(char* Format, char* Destination, s32 DestLength, ...)
} }
*(Destination + LengthPrinted) = 0; *(Destination + LengthPrinted) = 0;
va_end(Args); #endif
return LengthPrinted; va_end(Args);
return 0;
} }

67
gs_vector_matrix.h
View File

@ -66,6 +66,15 @@ union v4
r32 E[4]; r32 E[4];
}; };
#define WhiteV4 v4{1, 1, 1, 1}
#define BlackV4 v4{0, 0, 0, 1}
#define RedV4 v4{1, 0, 0, 1}
#define GreenV4 v4{0, 1, 0, 1}
#define BlueV4 v4{0, 0, 1, 1}
#define YellowV4 v4{1, 1, 0, 1}
#define TealV4 v4{0, 1, 1, 1}
#define PinkV4 v4{1, 0, 1, 1}
////////////////////////////////////// //////////////////////////////////////
// MATRIX // MATRIX
///////////////////////////////////// /////////////////////////////////////
@ -99,8 +108,8 @@ union m44
struct rect struct rect
{ {
v2 LowerLeft; v2 Min;
v2 UpperRight; v2 Max;
}; };
@ -187,6 +196,19 @@ V4OpV4Def(*)
#undef V3OpV3Def #undef V3OpV3Def
#undef V4OpV4Def #undef V4OpV4Def
#define V2RefOpV2Def(op) v2 operator##op (v2& A, v2 B) { return v2{ A.x op B.x, A.y op B.y };}
#define V3RefOpV3Def(op) v3 operator##op (v3& A, v3 B) { return v3{ A.x op B.x, A.y op B.y, A.z op B.z };}
#define V4RefOpScalarDef(op) v4 operator##op (v4& A, v4 B) { return v4{ A.x op B.x, A.y op B.y, A.z op B.z, A.w op B.w };}
V2RefOpV2Def(+=)
V2RefOpV2Def(-=)
V3RefOpV3Def(+=)
V3RefOpV3Def(-=)
V4RefOpScalarDef(+=)
V4RefOpScalarDef(-=)
#undef V2RefOpV2Def
#undef V3RefOpV3Def
#undef V4RefOpV4Def
#define V2OpScalarDef(op) v2 operator##op (v2 A, r32 B) { return v2{ A.x op B, A.y op B };} #define V2OpScalarDef(op) v2 operator##op (v2 A, r32 B) { return v2{ A.x op B, A.y op B };}
#define V3OpScalarDef(op) v3 operator##op (v3 A, r32 B) { return v3{ A.x op B, A.y op B, A.z op B };} #define V3OpScalarDef(op) v3 operator##op (v3 A, r32 B) { return v3{ A.x op B, A.y op B, A.z op B };}
#define V4OpScalarDef(op) v4 operator##op (v4 A, r32 B) { return v4{ A.x op B, A.y op B, A.z op B, A.w op B };} #define V4OpScalarDef(op) v4 operator##op (v4 A, r32 B) { return v4{ A.x op B, A.y op B, A.z op B, A.w op B };}
@ -201,9 +223,9 @@ V4OpScalarDef(/)
#undef V4POpScalarDef #undef V4POpScalarDef
#define V2POpScalarDef(op) v2 operator##op (v2* A, r32 B) { return v2{ A->x op B, A->y op B };} #define V2POpScalarDef(op) v2 operator##op (v2& A, r32 B) { return v2{ A->x op B, A->y op B };}
#define V3POpScalarDef(op) v3 operator##op (v3* A, r32 B) { return v3{ A->x op B, A->y op B, A->z op B };} #define V3POpScalarDef(op) v3 operator##op (v3& A, r32 B) { return v3{ A->x op B, A->y op B, A->z op B };}
#define V4POpScalarDef(op) v4 operator##op (v4* A, r32 B) { return v4{ A->x op B, A->y op B, A->z op B, A->w op B };} #define V4POpScalarDef(op) v4 operator##op (v4& A, r32 B) { return v4{ A->x op B, A->y op B, A->z op B, A->w op B };}
V2OpScalarDef(*=) V2OpScalarDef(*=)
V2OpScalarDef(/=) V2OpScalarDef(/=)
V3OpScalarDef(*=) V3OpScalarDef(*=)
@ -613,6 +635,39 @@ PointToPercentRange (v2 P, v2 Min, v2 Max)
return Result; return Result;
} }
//////////////////////////////////////
// RECT
//////////////////////////////////////
inline r32
Width (rect Rect)
{
s32 Result = Rect.Max.x - Rect.Min.x;
return Result;
}
inline r32
Height (rect Rect)
{
s32 Result = Rect.Max.y - Rect.Min.y;
return Result;
}
inline v2
CalculateRectCenter (rect Rect)
{
v2 Result = (Rect.Min + Rect.Max) / 2.0f;
return Result;
}
inline b32
PointIsInRect (v2 Point, rect Rect)
{
b32 Result = ((Point.x >= Rect.Min.x && Point.x <= Rect.Max.x) &&
(Point.y >= Rect.Min.y && Point.y <= Rect.Max.y));
return Result;
}
////////////////////////////////////// //////////////////////////////////////
// MATRIX // MATRIX
////////////////////////////////////// //////////////////////////////////////
@ -778,8 +833,6 @@ Transpose (m44 M)
static m44 static m44
GetPositionM44 (v4 Position) GetPositionM44 (v4 Position)
{ {
DEBUG_TRACK_SCOPE(GetPositionM44);
#if 1 #if 1
return m44{ return m44{
1, 0, 0, 0, 1, 0, 0, 0,

974
gs_win32.cpp Normal file
View File

@ -0,0 +1,974 @@
#ifndef GS_WIN32_CPP
struct win32_state
{
b32 Initialized;
b32 Running;
};
struct win32_opengl_window_info
{
s32 ColorBits;
s32 AlphaBits;
s32 DepthBits;
HGLRC RenderContext;
};
struct window
{
char* Name;
char* ClassName;
s32 Width;
s32 Height;
WNDPROC WindowEventHandler;
WNDCLASS Class;
HWND Handle;
HDC DeviceContext;
// TODO(peter): Make this a union?
win32_opengl_window_info OpenGLInfo;
};
struct handle_window_msg_result
{
b32 NeedsUpdate;
#ifdef DEBUG
char MessageType[128];
#endif
};
global_variable win32_state GlobalWin32State;
// Utility
internal s32 Win32StringLength(char* String);
internal s32 Win32ConcatStrings(s32 ALen, char* A, s32 BLen, char* B, s32 DestLen, char* Dest);
// Windowing & Graphics
struct win32_offscreen_buffer
{
texture_buffer Buffer;
BITMAPINFO Info;
};
LRESULT CALLBACK Win32HandleWindowsEvents (HWND WindowHandle, UINT Msg, WPARAM wParam, LPARAM lParam);
internal handle_window_msg_result HandleWindowsMessage (HWND WindowHandle, MSG Message);
internal void Win32UpdateWindowDimension(window* Window);
internal void Win32ResizeDIBSection(win32_offscreen_buffer *Buffer, int Width, int Height);
internal void Win32DisplayBufferInWindow(win32_offscreen_buffer* Buffer, window Window);
// Memory
internal PLATFORM_ALLOC(Win32Alloc);
internal PLATFORM_FREE(Win32Free);
// File IO
internal PLATFORM_READ_ENTIRE_FILE(Win32ReadEntireFile);
internal PLATFORM_WRITE_ENTIRE_FILE(Win32WriteEntireFile);
internal FILETIME Win32GetFileLastWriteTime;
// DLL
struct win32_dll_refresh
{
FILETIME LastWriteTime;
HMODULE DLL;
b32 IsValid;
char SourceDLLPath[MAX_PATH];
char WorkingDLLPath[MAX_PATH];
char LockFilePath[MAX_PATH];
};
internal b32 LoadApplicationDLL(char* DLLName, win32_dll_refresh* DLLResult);
internal void UnloadApplicationDLL(win32_dll_refresh* DLL);
internal win32_dll_refresh InitializeDLLHotReloading(char* SourceDLLName, char* WorkingDLLFileName, char* LockFileName);
internal b32 HotLoadDLL(win32_dll_refresh* DLL);
// Networking
///
// Utils
///
internal s32
Win32StringLength(char* String)
{
char* At = String;
while (*At) { At++; };
return At - String;
}
internal s32
Win32ConcatStrings(s32 ALen, char* A, s32 BLen, char* B, s32 DestLen, char* Dest)
{
char* Dst = Dest;
char* AAt = A;
for (s32 a = 0; a < ALen; a++)
{
*Dst++ = *AAt++;
}
char* BAt = B;
for (s32 b = 0; b < BLen; b++)
{
*Dst++ = *BAt++;
}
return Dst - Dest;
}
///
// Windowing
///
internal window
Win32CreateWindow (HINSTANCE HInstance, char* WindowName, s32 Width, s32 Height,
WNDPROC WindowEventHandler)
{
window Result = {};
Result.Name = WindowName;
Result.ClassName = WindowName;
Result.Width = Width;
Result.Height = Height;
Result.WindowEventHandler = WindowEventHandler;
Result.Class = {};
Result.Class.style = CS_HREDRAW | CS_VREDRAW;
Result.Class.lpfnWndProc = WindowEventHandler;
Result.Class.hInstance = HInstance;
Result.Class.lpszClassName = WindowName;
if (RegisterClass(&Result.Class))
{
Result.Handle = CreateWindowEx(
0,
Result.Class.lpszClassName,
WindowName,
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
CW_USEDEFAULT,
CW_USEDEFAULT,
Width,
Height,
0,
0,
HInstance,
0);
Result.DeviceContext = GetDC(Result.Handle);
}
return Result;
};
internal window
PlatformCreateWindow (char* WindowName, s32 Width, s32 Height)
{
HINSTANCE HInstance = GetModuleHandle(NULL);
return Win32CreateWindow(HInstance, WindowName, Width, Height, Win32HandleWindowsEvents);
}
internal void
CreateOpenGLWindowContext (win32_opengl_window_info Info, window* Window)
{
// Setup pixel format
{
PIXELFORMATDESCRIPTOR PixelFormatDesc = { 0 };
// TODO: Program seems to work perfectly fine without all other params except dwFlags.
// Can we skip other params for the sake of brevity?
PixelFormatDesc.nSize = sizeof(PIXELFORMATDESCRIPTOR);
PixelFormatDesc.nVersion = 1;
PixelFormatDesc.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
PixelFormatDesc.iPixelType = PFD_TYPE_RGBA;// TODO(Peter): include this in win32_opengl_window_info?
PixelFormatDesc.cColorBits = Info.ColorBits;
PixelFormatDesc.cAlphaBits = Info.AlphaBits;
PixelFormatDesc.cDepthBits = Info.DepthBits;
PixelFormatDesc.dwLayerMask = PFD_MAIN_PLANE; // TODO(Peter): include this in win32_opengl_window_info?
//
s32 PixelFormat = ChoosePixelFormat(Window->DeviceContext, &PixelFormatDesc);
if (!PixelFormat) { InvalidCodePath; } // TODO: Log: Choose pixel format failed
if (!SetPixelFormat(Window->DeviceContext, PixelFormat, &PixelFormatDesc)) { InvalidCodePath; } // TODO: Log: Set pixel format failed
}
// Create rendering context
{
// TODO: Create "proper" context?
// https://www.opengl.org/wiki/Creating_an_OpenGL_Context_(WGL)#Proper_Context_Creation
Info.RenderContext = wglCreateContext(Window->DeviceContext);
wglMakeCurrent(Window->DeviceContext, Info.RenderContext);
// TODO(Peter): do we want this?
/*
glGetIntegerv(GL_MAJOR_VERSION, );
glGetIntegerv(GL_MINOR_VERSION, );
(char*)glGetString(GL_VENDOR);
(char*)glGetString(GL_RENDERER);
*/
}
Window->OpenGLInfo = Info;
}
struct handle_window_event_result
{
LRESULT Result;
b32 Handled;
};
internal void
Win32UpdateInputFrameMouseButtonState (input_frame* InputFrame, key_code KeyCode, int Win32VirtualKey)
{
InputFrame->KeysDown[KeyCode] = (GetKeyState(Win32VirtualKey) & (1 << 15)) != 0;
}
internal void
Win32UpdateInputFrameMouseState (input_frame* InputFrame)
{
Win32UpdateInputFrameMouseButtonState(InputFrame, KeyCode_MouseLeftButton, VK_LBUTTON);
Win32UpdateInputFrameMouseButtonState(InputFrame, KeyCode_MouseMiddleButton, VK_MBUTTON);
Win32UpdateInputFrameMouseButtonState(InputFrame, KeyCode_MouseRightButton, VK_RBUTTON);
// NOTE(Peter): If you decide to support extra mouse buttons, on windows the key codes are
// VK_XBUTTON1 and VK_XBUTTON2
}
internal void
Win32UpdateInputFrameMouseWheelDelta (input_frame* InputFrame, MSG Message)
{
int MouseWheel = GET_WHEEL_DELTA_WPARAM(Message.wParam);
InputFrame->MouseScroll = MouseWheel;
}
internal handle_window_event_result
HandleWindowEventUnlessWouldUseDefault (HWND WindowHandle, UINT Msg, WPARAM wParam, LPARAM lParam)
{
handle_window_event_result Result = {};
Result.Handled = false;
switch (Msg)
{
case WM_SIZE:
{
Result.Handled = true;
}break;
case WM_CLOSE:
{
Result.Result = DefWindowProc(WindowHandle, Msg, wParam, lParam);
Result.Handled = true;
}break;
case WM_DESTROY:
{
GlobalWin32State.Running = false;
Result.Handled = true;
}break;
case WM_PAINT:
{
PAINTSTRUCT PaintStruct;
HDC DeviceContext;
b32 PaintResult;
DeviceContext = BeginPaint(WindowHandle, &PaintStruct);
PaintResult = EndPaint(WindowHandle, &PaintStruct);
Result.Handled = true;
}break;
}
return Result;
}
LRESULT CALLBACK
Win32HandleWindowsEvents (
HWND WindowHandle,
UINT Msg,
WPARAM wParam,
LPARAM lParam
)
{
handle_window_event_result EventResult = HandleWindowEventUnlessWouldUseDefault(
WindowHandle,
Msg,
wParam,
lParam);
if (!EventResult.Handled)
{
EventResult.Result = DefWindowProc(WindowHandle, Msg, wParam, lParam);
}
return EventResult.Result;
}
#define WIN32_SHOULD_TRANSLATE_TO_CHAR -1
static int
Win32GetKeyIndex (int Win32VirtualKey, bool NumpadValid, bool TranslateToChar)
{
int Result = WIN32_SHOULD_TRANSLATE_TO_CHAR;
if (Win32VirtualKey == VK_ESCAPE) { Result = (int)KeyCode_Esc; }
if (!TranslateToChar)
{
if (Win32VirtualKey == VK_SPACE) { Result = (int)KeyCode_Space; }
}
if (Win32VirtualKey == VK_CAPITAL) { Result = (int)KeyCode_CapsLock; }
else if (Win32VirtualKey == VK_TAB) { Result = (int)KeyCode_Tab; }
else if (Win32VirtualKey == VK_LSHIFT) { Result = (int)KeyCode_LeftShift; }
else if (Win32VirtualKey == VK_RSHIFT) { Result = (int)KeyCode_RightShift; }
else if (Win32VirtualKey == VK_LCONTROL) { Result = (int)KeyCode_LeftCtrl; }
else if (Win32VirtualKey == VK_RCONTROL) { Result = (int)KeyCode_RightCtrl; }
// TODO(Peter): support the function key?
//else if (Win32VirtualKey == VK_) { Result = (int)KeyCode_Fn; }
else if (Win32VirtualKey == VK_MENU) { Result = (int)KeyCode_Alt; }
else if (Win32VirtualKey == VK_PRIOR) { Result = (int)KeyCode_PageUp; }
else if (Win32VirtualKey == VK_NEXT) { Result = (int)KeyCode_PageDown; }
else if (Win32VirtualKey == VK_BACK) { Result = (int)KeyCode_Backspace; }
else if (Win32VirtualKey == VK_DELETE) { Result = (int)KeyCode_Delete; }
else if (Win32VirtualKey == VK_RETURN) { Result = (int)KeyCode_Enter; }
else if (Win32VirtualKey == VK_F1) { Result = (int)KeyCode_F1; }
else if (Win32VirtualKey == VK_F2) { Result = (int)KeyCode_F2; }
else if (Win32VirtualKey == VK_F3) { Result = (int)KeyCode_F3; }
else if (Win32VirtualKey == VK_F4) { Result = (int)KeyCode_F4; }
else if (Win32VirtualKey == VK_F5) { Result = (int)KeyCode_F5; }
else if (Win32VirtualKey == VK_F6) { Result = (int)KeyCode_F6; }
else if (Win32VirtualKey == VK_F7) { Result = (int)KeyCode_F7; }
else if (Win32VirtualKey == VK_F8) { Result = (int)KeyCode_F8; }
else if (Win32VirtualKey == VK_F9) { Result = (int)KeyCode_F9; }
else if (Win32VirtualKey == VK_F10) { Result = (int)KeyCode_F10; }
else if (Win32VirtualKey == VK_F11) { Result = (int)KeyCode_F11; }
else if (Win32VirtualKey == VK_F12) { Result = (int)KeyCode_F12; }
if (!TranslateToChar)
{
if (Win32VirtualKey == 0x30) { Result = (int)KeyCode_0; }
else if (Win32VirtualKey == 0x31) { Result = (int)KeyCode_1; }
else if (Win32VirtualKey == 0x32) { Result = (int)KeyCode_2; }
else if (Win32VirtualKey == 0x33) { Result = (int)KeyCode_3; }
else if (Win32VirtualKey == 0x34) { Result = (int)KeyCode_4; }
else if (Win32VirtualKey == 0x35) { Result = (int)KeyCode_5; }
else if (Win32VirtualKey == 0x36) { Result = (int)KeyCode_6; }
else if (Win32VirtualKey == 0x37) { Result = (int)KeyCode_7; }
else if (Win32VirtualKey == 0x38) { Result = (int)KeyCode_8; }
else if (Win32VirtualKey == 0x39) { Result = (int)KeyCode_9; }
else if (Win32VirtualKey == 0x41) { Result = (int)KeyCode_A; }
else if (Win32VirtualKey == 0x42) { Result = (int)KeyCode_B; }
else if (Win32VirtualKey == 0x43) { Result = (int)KeyCode_C; }
else if (Win32VirtualKey == 0x44) { Result = (int)KeyCode_D; }
else if (Win32VirtualKey == 0x45) { Result = (int)KeyCode_E; }
else if (Win32VirtualKey == 0x46) { Result = (int)KeyCode_F; }
else if (Win32VirtualKey == 0x47) { Result = (int)KeyCode_G; }
else if (Win32VirtualKey == 0x48) { Result = (int)KeyCode_H; }
else if (Win32VirtualKey == 0x49) { Result = (int)KeyCode_I; }
else if (Win32VirtualKey == 0x4A) { Result = (int)KeyCode_J; }
else if (Win32VirtualKey == 0x4B) { Result = (int)KeyCode_K; }
else if (Win32VirtualKey == 0x4C) { Result = (int)KeyCode_L; }
else if (Win32VirtualKey == 0x4D) { Result = (int)KeyCode_M; }
else if (Win32VirtualKey == 0x4E) { Result = (int)KeyCode_N; }
else if (Win32VirtualKey == 0x4F) { Result = (int)KeyCode_O; }
else if (Win32VirtualKey == 0x50) { Result = (int)KeyCode_P; }
else if (Win32VirtualKey == 0x51) { Result = (int)KeyCode_Q; }
else if (Win32VirtualKey == 0x52) { Result = (int)KeyCode_R; }
else if (Win32VirtualKey == 0x53) { Result = (int)KeyCode_S; }
else if (Win32VirtualKey == 0x54) { Result = (int)KeyCode_T; }
else if (Win32VirtualKey == 0x55) { Result = (int)KeyCode_U; }
else if (Win32VirtualKey == 0x56) { Result = (int)KeyCode_V; }
else if (Win32VirtualKey == 0x57) { Result = (int)KeyCode_W; }
else if (Win32VirtualKey == 0x58) { Result = (int)KeyCode_X; }
else if (Win32VirtualKey == 0x59) { Result = (int)KeyCode_Y; }
else if (Win32VirtualKey == 0x5A) { Result = (int)KeyCode_Z; }
}
if (NumpadValid)
{
if (Win32VirtualKey == VK_NUMPAD0) { Result = (int)KeyCode_Num0; }
else if (Win32VirtualKey == VK_NUMPAD1) { Result = (int)KeyCode_Num1; }
else if (Win32VirtualKey == VK_NUMPAD2) { Result = (int)KeyCode_Num2; }
else if (Win32VirtualKey == VK_NUMPAD3) { Result = (int)KeyCode_Num3; }
else if (Win32VirtualKey == VK_NUMPAD4) { Result = (int)KeyCode_Num4; }
else if (Win32VirtualKey == VK_NUMPAD5) { Result = (int)KeyCode_Num5; }
else if (Win32VirtualKey == VK_NUMPAD6) { Result = (int)KeyCode_Num6; }
else if (Win32VirtualKey == VK_NUMPAD7) { Result = (int)KeyCode_Num7; }
else if (Win32VirtualKey == VK_NUMPAD8) { Result = (int)KeyCode_Num8; }
else if (Win32VirtualKey == VK_NUMPAD9) { Result = (int)KeyCode_Num9; }
}
if (Win32VirtualKey == VK_UP) { Result = (int)KeyCode_UpArrow; }
else if (Win32VirtualKey == VK_DOWN) { Result = (int)KeyCode_DownArrow; }
else if (Win32VirtualKey == VK_LEFT) { Result = (int)KeyCode_LeftArrow; }
else if (Win32VirtualKey == VK_RIGHT) { Result = (int)KeyCode_RightArrow; }
return Result;
}
internal handle_window_msg_result
HandleWindowsMessage (
HWND WindowHandle,
MSG Message)
{
handle_window_msg_result Result = {};
Result.NeedsUpdate = 0;
switch (Message.message)
{
case WM_HOTKEY:
{
}break;
case WM_MOUSEWHEEL:
{
int MouseWheel = GET_WHEEL_DELTA_WPARAM(Message.wParam);
/*
Input.New->MouseScroll = MouseWheel;
Result.NeedsUpdate = true;
*/
}break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
{
/*
Input.New->KeyStates[KeyCode_MouseLeftButton] = (GetKeyState(VK_LBUTTON) & (1 << 15)) != 0;
Input.New->KeyStates[KeyCode_MouseMiddleButton] = (GetKeyState(VK_MBUTTON) & (1 << 15)) != 0;
Input.New->KeyStates[KeyCode_MouseRightButton] = (GetKeyState(VK_RBUTTON) & (1 << 15)) != 0;
// NOTE(Peter): If you decide to support extra mouse buttons, on windows the key codes are
// VK_XBUTTON1 and VK_XBUTTON2
if (KeyTransitionedDown(KeyCode_MouseLeftButton, Input))
{
Input.MouseDownX = Input.New->MouseX;
Input.MouseDownY = Input.New->MouseY;
}
Result.NeedsUpdate = true;*/
}break;
case WM_MOUSEMOVE:
{
POINT MousePos;
GetCursorPos(&MousePos);
ScreenToClient(WindowHandle, &MousePos);
/*
Input.New->MouseX = MousePos.x;
Input.New->MouseY = App.WindowHeight - MousePos.y;
Result.NeedsUpdate = true;
*/
}break;
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_KEYUP:
{
int VirtualKey = (int)Message.wParam;
bool KeyDown = (Message.lParam & (1 << 31)) == 0;
int KeyIndex = Win32GetKeyIndex(VirtualKey, true, true);
/*
if (KeyIndex >= 0)
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_KEYEvent ");
Input.New->KeyStates[KeyIndex] = KeyDown;
Result.NeedsUpdate = true;
}
else
{
if (Input.TranslateInputToCharValues && KeyDown)
{
// NOTE(Peter): Took this out b/c we're translating the WM_CHAR messages
// in the message pump, and if we do it here as well, character producing
// key messages get put on the message queue twice
TranslateMessage(&Message);
DispatchMessage(&Message);
}
else
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_KEYEvent ");
// NOTE(Peter): This is so that when you lift up a key that was generating a WM_CHAR,
// the app still has a chance to respond to it.
Result.NeedsUpdate = true;
}
}
*/
}break;
case WM_CHAR:
{
/*
char TranslatedChar = (char)Message.wParam;
int KeyIndex = GetKeyIndexFromChar(TranslatedChar);
if (KeyIndex >= 0)
{
// NOTE(Peter): Always setting this to true becuase windows is stupid and doesn't
// pass the press/release bit through correctly. So now the KEYDOWN/KEYUP Messages above
// only translate the message to a WM_CHAR message if its a key down. Since we clear all
// keystates to false at the beginning of an input frame, this will make transitions
// get registered correctly.
Input.New->KeyStates[KeyIndex] = true;
Result.NeedsUpdate = true;
}
else
{
printf("Translated Char Not Recognized: %c\n", TranslatedChar);
//InvalidCodePath;
}
*/
}break;
default:
{
TranslateMessage(&Message);
DispatchMessage(&Message);
}break;
}
return Result;
}
internal void
Win32UpdateWindowDimension(window* Window)
{
RECT ClientRect;
GetClientRect(Window->Handle, &ClientRect);
Window->Width = ClientRect.right - ClientRect.left;
Window->Height = ClientRect.bottom - ClientRect.top;
}
internal void
Win32ResizeDIBSection(win32_offscreen_buffer *Win32Buffer, int Width, int Height)
{
if(Win32Buffer->Buffer.Memory)
{
VirtualFree(Win32Buffer->Buffer.Memory, 0, MEM_RELEASE);
}
Win32Buffer->Buffer.Width = Width;
Win32Buffer->Buffer.Height = Height;
int BytesPerPixel = 4;
Win32Buffer->Buffer.BytesPerPixel = BytesPerPixel;
Win32Buffer->Info.bmiHeader.biSize = sizeof(Win32Buffer->Info.bmiHeader);
Win32Buffer->Info.bmiHeader.biWidth = Win32Buffer->Buffer.Width;
Win32Buffer->Info.bmiHeader.biHeight = -Win32Buffer->Buffer.Height; // Top down, not bottom up
Win32Buffer->Info.bmiHeader.biPlanes = 1;
Win32Buffer->Info.bmiHeader.biBitCount = 32;
Win32Buffer->Info.bmiHeader.biCompression = BI_RGB;
int BitmapMemorySize = (Win32Buffer->Buffer.Width * Win32Buffer->Buffer.Height)*BytesPerPixel;
Win32Buffer->Buffer.Memory = (u8*)VirtualAlloc(0, BitmapMemorySize, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
Win32Buffer->Buffer.Pitch = Width*BytesPerPixel;
}
internal void
Win32DisplayBufferInWindow(win32_offscreen_buffer* Win32Buffer, window Window)
{
StretchDIBits(Window.DeviceContext,
0, 0, Win32Buffer->Buffer.Width, Win32Buffer->Buffer.Height,
0, 0, Win32Buffer->Buffer.Width, Win32Buffer->Buffer.Height,
Win32Buffer->Buffer.Memory,
&Win32Buffer->Info,
DIB_RGB_COLORS, SRCCOPY);
}
///
// Memory
///
internal u8*
Win32BasicAlloc (s32 Size)
{
return (u8*)VirtualAlloc(NULL, Size,
MEM_COMMIT | MEM_RESERVE,
PAGE_EXECUTE_READWRITE);
}
PLATFORM_ALLOC(Win32Alloc)
{
platform_memory_result Result = {};
Result.Error = PLATFORM_MEMORY_NO_ERROR;
Result.Base = Win32BasicAlloc(Size);
if (Result.Base)
{
Result.Size = Size;
}
else
{
Result.Error = 1;
}
return Result;
}
PLATFORM_FREE(Win32Free)
{
b32 Result = VirtualFree(Base, Size, MEM_RELEASE);
return Result;
}
// File IO
PLATFORM_READ_ENTIRE_FILE(Win32ReadEntireFile)
{
platform_memory_result Result = {};
Result.Error = PLATFORM_MEMORY_NO_ERROR;
HANDLE FileHandle = CreateFileA (
Path,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (FileHandle != INVALID_HANDLE_VALUE)
{
DWORD FileSize = GetFileSize(FileHandle, NULL);
Result.Base = (u8*)VirtualAlloc(NULL, FileSize, MEM_COMMIT | MEM_RESERVE,
PAGE_EXECUTE_READWRITE);
if (Result.Base)
{
Result.Size = FileSize;
s32 BytesRead = 0;
if (ReadFile(FileHandle, (LPVOID)Result.Base, FileSize, (LPDWORD)(&BytesRead), NULL))
{
}
else
{
Result.Size = 0;
Result.Error = 1;
}
}
CloseHandle(FileHandle);
}
else
{
// TODO(Peter): failure
}
return Result;
}
PLATFORM_WRITE_ENTIRE_FILE(Win32WriteEntireFile)
{
b32 Result = false;
HANDLE FileHandle = CreateFileA (
Path,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (FileHandle != INVALID_HANDLE_VALUE)
{
DWORD BytesWritten = 0;
b32 WriteSuccess = WriteFile(FileHandle,
Contents, Size,
&BytesWritten,
NULL);
if (WriteSuccess && BytesWritten == (u32)Size)
{
CloseHandle(FileHandle);
Result = true;
}
else
{
Result = false;
}
}
else
{
Result = false;
}
return Result;
}
internal FILETIME
GetFileLastWriteTime(char* Path)
{
FILETIME Result = {};
WIN32_FIND_DATA FindData = {};
HANDLE FileHandle = FindFirstFileA(Path, &FindData);
if (FileHandle != INVALID_HANDLE_VALUE)
{
Result = FindData.ftLastWriteTime;
FindClose(FileHandle);
}
else
{
// TODO(Peter): Error handling
}
return Result;
}
PLATFORM_GET_FILE_PATH(Win32SystemDialogueOpenFile)
{
b32 Result = false;
return Result;
}
///
// DLL
///
internal void
GetApplicationPath(system_path* Result)
{
Assert(Result->Path);
Result->PathLength = GetModuleFileNameA(0, Result->Path, Result->PathLength);
u32 CharactersScanned = 0;
u32 IndexOfLastSlash = 0;
char *Scan = Result->Path;
while(*Scan)
{
if (*Scan == '\\')
{
Result->IndexOfLastSlash = CharactersScanned + 1;
}
Scan++;
CharactersScanned++;
}
}
internal b32
LoadApplicationDLL(char* DLLName, win32_dll_refresh* DLLResult)
{
b32 Success = false;
Assert(DLLResult->DLL == 0);
DLLResult->DLL = LoadLibraryA(DLLName); // TODO(Peter): Error checking
if (DLLResult->DLL)
{
Success = true;
DLLResult->IsValid = true;
}
return Success;
}
internal void
UnloadApplicationDLL(win32_dll_refresh* DLL)
{
if (DLL->DLL)
{
FreeLibrary(DLL->DLL);
}
DLL->DLL = 0;
DLL->IsValid = false;
}
internal win32_dll_refresh
InitializeDLLHotReloading(char* SourceDLLName,
char* WorkingDLLFileName,
char* LockFileName)
{
win32_dll_refresh Result = {};
Result.IsValid = false;
system_path ExePath = {};
ExePath.PathLength = MAX_PATH;
ExePath.Path = (char*)Win32BasicAlloc(ExePath.PathLength);
GetApplicationPath(&ExePath);
Win32ConcatStrings(ExePath.IndexOfLastSlash, ExePath.Path,
Win32StringLength(SourceDLLName), SourceDLLName,
MAX_PATH, Result.SourceDLLPath);
Win32ConcatStrings(ExePath.IndexOfLastSlash, ExePath.Path,
Win32StringLength(WorkingDLLFileName), WorkingDLLFileName,
MAX_PATH, Result.WorkingDLLPath);
Win32ConcatStrings(ExePath.IndexOfLastSlash, ExePath.Path,
Win32StringLength(LockFileName), LockFileName,
MAX_PATH, Result.LockFilePath);
Win32Free((u8*)ExePath.Path, ExePath.PathLength);
return Result;
}
internal b32
HotLoadDLL(win32_dll_refresh* DLL)
{
b32 DidReload = false;
FILETIME UpdatedLastWriteTime = GetFileLastWriteTime(DLL->SourceDLLPath);
if (CompareFileTime(&UpdatedLastWriteTime, &DLL->LastWriteTime))
{
WIN32_FILE_ATTRIBUTE_DATA Ignored;
if (!GetFileAttributesEx(DLL->LockFilePath, GetFileExInfoStandard, &Ignored))
{
UnloadApplicationDLL(DLL);
CopyFileA(DLL->SourceDLLPath, DLL->WorkingDLLPath, FALSE);
LoadApplicationDLL(DLL->WorkingDLLPath, DLL);
DLL->LastWriteTime = UpdatedLastWriteTime;
DidReload = true;
}
}
return DidReload;
}
/////////////////////////////////////////
//
// Timing
//
/////////////////////////////////////////
internal s64
GetPerformanceFrequency ()
{
LARGE_INTEGER Frequency;
if (!QueryPerformanceFrequency(&Frequency))
{
s32 Error = GetLastError();
InvalidCodePath;
}
return (s64)Frequency.QuadPart;
}
internal s64
GetWallClock ()
{
LARGE_INTEGER Time;
if (!QueryPerformanceCounter(&Time))
{
s32 Error = GetLastError();
InvalidCodePath;
}
return (s64)Time.QuadPart;
}
/////////////////////////////////////////
//
// Open GL
//
/////////////////////////////////////////
internal void
OpenGLRenderTriBuffer (u8* Vertecies, s32 VertexElements,
u8* UVs, s32 UVElements,
u8* Colors, s32 ColorsElements,
s32 TriCount)
{
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(VertexElements, GL_FLOAT, VertexElements * sizeof(r32), Vertecies);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(UVElements, GL_FLOAT, UVElements * sizeof(r32), UVs);
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(ColorsElements, GL_FLOAT, ColorsElements * sizeof(r32), Colors);
glDrawArrays(GL_TRIANGLES, 0, TriCount);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
}
internal void
OpenGLDraw3DTri (v4 P0, v4 P1, v4 P2,
v2 UV0, v2 UV1, v2 UV2,
v4 C0, v4 C1, v4 C2)
{
glBegin(GL_TRIANGLES);
glTexCoord2f(UV0.x, UV0.y);
glColor4f(C0.r, C0.g, C0.b, C0.a);
glVertex4f(P0.x, P0.y, P0.z, P0.w);
glTexCoord2f(UV1.x, UV1.y);
glColor4f(C1.r, C1.g, C1.b, C1.a);
glVertex4f(P1.x, P1.y, P1.z, P1.w);
glTexCoord2f(UV2.x, UV2.y);
glColor4f(C2.r, C2.g, C2.b, C2.a);
glVertex4f(P2.x, P2.y, P2.z, P2.w);
glEnd();
}
internal void
OpenGLDraw2DTri (v2 P0, v2 P1, v2 P2,
v2 UV0, v2 UV1, v2 UV2,
v4 C0, v4 C1, v4 C2)
{
glBegin(GL_TRIANGLES);
glTexCoord2f(UV0.x, UV0.y);
glColor4f(C0.r, C0.g, C0.b, C0.a);
glVertex2f(P0.x, P0.y);
glTexCoord2f(UV1.x, UV1.y);
glColor4f(C1.r, C1.g, C1.b, C1.a);
glVertex2f(P1.x, P1.y);
glTexCoord2f(UV2.x, UV2.y);
glColor4f(C2.r, C2.g, C2.b, C2.a);
glVertex2f(P2.x, P2.y);
glEnd();
}
internal void
LoadModelView (r32 Matrix[16])
{
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(Matrix);
}
internal void
LoadProjection (r32 Matrix[16])
{
glMatrixMode(GL_PROJECTION);
glLoadMatrixf(Matrix);
}
internal void
ClearRenderBuffer ()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
s32 NextTextureHandle = 1;
internal s32
SubmitTexture (u8* Memory, s32 Width, s32 Height)
{
s32 TextureHandle = NextTextureHandle++;
glBindTexture(GL_TEXTURE_2D, TextureHandle);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Width, Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, Memory);
return TextureHandle;
}
internal void
BindTexture (s32 TextureHandle)
{
glBindTexture(GL_TEXTURE_2D, TextureHandle);
}
#define GS_WIN32_CPP
#endif // GS_WIN32_CPP

834
gs_win32.h
View File

@ -1,831 +1,17 @@
#ifndef GS_WIN32_H #ifndef GS_WIN32_H
#ifdef DEBUG struct platform_font_info
#define DEBUG_GET_MESSAGE_NAME(string, message) sprintf(string, message);
#else
#define DEBUG_GET_MESSAGE_NAME(string, message)
#endif
struct win32_state
{ {
b32 Initialized; s32 PixelHeight;
b32 Running; s32 Ascent, Descent, Leading;
s32 MaxCharWidth;
s32 CodepointStart;
s32 CodepointOnePastLast;
HDC DrawingDC;
HBITMAP Bitmap;
HFONT Font;
}; };
struct win32_window_info
{
char* Name;
char* ClassName;
s32 Width;
s32 Height;
WNDPROC WindowEventsHandler; // If this is left null, Win32HandleWindowsEvents will be used
};
struct win32_opengl_window_info
{
s32 ColorBits;
s32 AlphaBits;
s32 DepthBits;
HGLRC RenderContext;
};
struct win32_window
{
win32_window_info Info;
WNDCLASS Class;
HWND Handle;
HDC DeviceContext;
// TODO(peter): Make this a union?
win32_opengl_window_info OpenGLInfo;
};
struct handle_window_msg_result
{
b32 NeedsUpdate;
#ifdef DEBUG
char MessageType[128];
#endif
};
global_variable win32_state GlobalWin32State;
// Utility
internal s32 Win32StringLength(char* String);
internal s32 Win32ConcatStrings(s32 ALen, char* A, s32 BLen, char* B, s32 DestLen, char* Dest);
// Windowing & Graphics
struct win32_offscreen_buffer
{
u8* Memory;
s32 Width;
s32 Height;
s32 Pitch;
s32 BytesPerPixel;
BITMAPINFO Info;
};
internal void InitializeWin32();
internal win32_window CreateWin32Window (char* WindowName, char* WindowClassName, s32 Width, s32 Height);
LRESULT CALLBACK Win32HandleWindowsEvents (HWND WindowHandle, UINT Msg, WPARAM wParam, LPARAM lParam);
internal handle_window_msg_result HandleWindowsMessage (HWND WindowHandle, MSG Message);
internal void Win32UpdateWindowDimension(win32_window* Window);
internal void Win32ResizeDIBSection(win32_offscreen_buffer *Buffer, int Width, int Height);
internal void Win32DisplayBufferInWindow(win32_offscreen_buffer* Buffer, win32_window Window);
// Memory
internal platform_memory_result Win32Alloc(s32 Size);
internal b32 Win32Free(u8* Base, s32 Size);
// File IO
internal platform_memory_result ReadEntireFile(char* Path);
internal b32 WriteEntireFile(char* Path, u8* Contents, s32 Size);
internal FILETIME GetFileLastWriteTime(char* Path);
// DLL
struct win32_dll_refresh
{
FILETIME LastWriteTime;
HMODULE DLL;
b32 IsValid;
char SourceDLLPath[MAX_PATH];
char WorkingDLLPath[MAX_PATH];
char LockFilePath[MAX_PATH];
};
struct executable_path
{
char Path[MAX_PATH];
s32 PathLength;
s32 IndexOfLastSlash;
};
internal executable_path GetApplicationPath();
internal b32 LoadApplicationDLL(char* DLLName, win32_dll_refresh* DLLResult);
internal void UnloadApplicationDLL(win32_dll_refresh* DLL);
internal win32_dll_refresh InitializeDLLHotReloading(char* SourceDLLName, char* WorkingDLLFileName, char* LockFileName);
internal b32 HotLoadDLL(win32_dll_refresh* DLL);
///
// Utils
///
internal s32
Win32StringLength(char* String)
{
char* At = String;
while (*At) { At++; };
return At - String;
}
internal s32
Win32ConcatStrings(s32 ALen, char* A, s32 BLen, char* B, s32 DestLen, char* Dest)
{
char* Dst = Dest;
char* AAt = A;
for (s32 a = 0; a < ALen; a++)
{
*Dst++ = *AAt++;
}
char* BAt = B;
for (s32 b = 0; b < BLen; b++)
{
*Dst++ = *BAt++;
}
return Dst - Dest;
}
///
// Windowing
///
internal void
InitializeWin32 ()
{
GlobalWin32State = {};
GlobalWin32State.Running = false;
GlobalWin32State.Initialized = true;
}
internal win32_window
CreateWin32Window (HINSTANCE HInstance, win32_window_info Info)
{
win32_window Result = {};
Result.Info = Info;
Result.Class = {};
Result.Class.style = CS_HREDRAW | CS_VREDRAW;
if (Info.WindowEventsHandler)
{
Result.Class.lpfnWndProc = Info.WindowEventsHandler;
}
else
{
Result.Class.lpfnWndProc = Win32HandleWindowsEvents;
}
Result.Class.hInstance = HInstance;
Result.Class.lpszClassName = Info.ClassName;
if (RegisterClass(&Result.Class))
{
Result.Handle = CreateWindowEx(
0,
Result.Class.lpszClassName,
Info.Name,
WS_OVERLAPPEDWINDOW | WS_VISIBLE,
CW_USEDEFAULT,
CW_USEDEFAULT,
Info.Width,
Info.Height,
0,
0,
HInstance,
0);
Result.DeviceContext = GetDC(Result.Handle);
}
return Result;
};
internal void
CreateOpenGLWindowContext (win32_opengl_window_info Info, win32_window* Window)
{
// Setup pixel format
{
PIXELFORMATDESCRIPTOR PixelFormatDesc = { 0 };
// TODO: Program seems to work perfectly fine without all other params except dwFlags.
// Can we skip other params for the sake of brevity?
PixelFormatDesc.nSize = sizeof(PIXELFORMATDESCRIPTOR);
PixelFormatDesc.nVersion = 1;
PixelFormatDesc.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
PixelFormatDesc.iPixelType = PFD_TYPE_RGBA;// TODO(Peter): include this in win32_opengl_window_info?
PixelFormatDesc.cColorBits = Info.ColorBits;
PixelFormatDesc.cAlphaBits = Info.AlphaBits;
PixelFormatDesc.cDepthBits = Info.DepthBits;
PixelFormatDesc.dwLayerMask = PFD_MAIN_PLANE; // TODO(Peter): include this in win32_opengl_window_info?
//
s32 PixelFormat = ChoosePixelFormat(Window->DeviceContext, &PixelFormatDesc);
if (!PixelFormat) { InvalidCodePath; } // TODO: Log: Choose pixel format failed
if (!SetPixelFormat(Window->DeviceContext, PixelFormat, &PixelFormatDesc)) { InvalidCodePath; } // TODO: Log: Set pixel format failed
}
// Create rendering context
{
// TODO: Create "proper" context?
// https://www.opengl.org/wiki/Creating_an_OpenGL_Context_(WGL)#Proper_Context_Creation
Info.RenderContext = wglCreateContext(Window->DeviceContext);
wglMakeCurrent(Window->DeviceContext, Info.RenderContext);
// TODO(Peter): do we want this?
/*
glGetIntegerv(GL_MAJOR_VERSION, );
glGetIntegerv(GL_MINOR_VERSION, );
(char*)glGetString(GL_VENDOR);
(char*)glGetString(GL_RENDERER);
*/
}
Window->OpenGLInfo = Info;
}
struct handle_window_event_result
{
LRESULT Result;
b32 Handled;
};
internal handle_window_event_result
HandleWindowEventUnlessWouldUseDefault (HWND WindowHandle, UINT Msg, WPARAM wParam, LPARAM lParam)
{
handle_window_event_result Result = {};
Result.Handled = false;
switch (Msg)
{
case WM_SIZE:
{
//ResizeDIBSection();
Result.Handled = true;
}break;
case WM_CLOSE:
{
Result.Result = DefWindowProc(WindowHandle, Msg, wParam, lParam);
Result.Handled = true;
}break;
case WM_DESTROY:
{
GlobalWin32State.Running = false;
Result.Handled = true;
}break;
case WM_PAINT:
{
PAINTSTRUCT PaintStruct;
HDC DeviceContext;
b32 PaintResult;
DeviceContext = BeginPaint(WindowHandle, &PaintStruct);
PaintResult = EndPaint(WindowHandle, &PaintStruct);
Result.Handled = true;
}break;
}
return Result;
}
LRESULT CALLBACK
Win32HandleWindowsEvents (
HWND WindowHandle,
UINT Msg,
WPARAM wParam,
LPARAM lParam
)
{
handle_window_event_result EventResult = HandleWindowEventUnlessWouldUseDefault(
WindowHandle,
Msg,
wParam,
lParam);
if (!EventResult.Handled)
{
EventResult.Result = DefWindowProc(WindowHandle, Msg, wParam, lParam);
}
return EventResult.Result;
}
#define WIN32_SHOULD_TRANSLATE_TO_CHAR -1
static int
Win32GetKeyIndex (int Win32VirtualKey, bool NumpadValid, bool TranslateToChar)
{
int Result = WIN32_SHOULD_TRANSLATE_TO_CHAR;
if (Win32VirtualKey == VK_ESCAPE) { Result = (int)KeyCode_Esc; }
if (!TranslateToChar)
{
if (Win32VirtualKey == VK_SPACE) { Result = (int)KeyCode_Space; }
}
if (Win32VirtualKey == VK_CAPITAL) { Result = (int)KeyCode_CapsLock; }
else if (Win32VirtualKey == VK_TAB) { Result = (int)KeyCode_Tab; }
else if (Win32VirtualKey == VK_LSHIFT) { Result = (int)KeyCode_LeftShift; }
else if (Win32VirtualKey == VK_RSHIFT) { Result = (int)KeyCode_RightShift; }
else if (Win32VirtualKey == VK_LCONTROL) { Result = (int)KeyCode_LeftCtrl; }
else if (Win32VirtualKey == VK_RCONTROL) { Result = (int)KeyCode_RightCtrl; }
// TODO(Peter): support the function key?
//else if (Win32VirtualKey == VK_) { Result = (int)KeyCode_Fn; }
else if (Win32VirtualKey == VK_MENU) { Result = (int)KeyCode_Alt; }
else if (Win32VirtualKey == VK_PRIOR) { Result = (int)KeyCode_PageUp; }
else if (Win32VirtualKey == VK_NEXT) { Result = (int)KeyCode_PageDown; }
else if (Win32VirtualKey == VK_BACK) { Result = (int)KeyCode_Backspace; }
else if (Win32VirtualKey == VK_DELETE) { Result = (int)KeyCode_Delete; }
else if (Win32VirtualKey == VK_RETURN) { Result = (int)KeyCode_Enter; }
else if (Win32VirtualKey == VK_F1) { Result = (int)KeyCode_F1; }
else if (Win32VirtualKey == VK_F2) { Result = (int)KeyCode_F2; }
else if (Win32VirtualKey == VK_F3) { Result = (int)KeyCode_F3; }
else if (Win32VirtualKey == VK_F4) { Result = (int)KeyCode_F4; }
else if (Win32VirtualKey == VK_F5) { Result = (int)KeyCode_F5; }
else if (Win32VirtualKey == VK_F6) { Result = (int)KeyCode_F6; }
else if (Win32VirtualKey == VK_F7) { Result = (int)KeyCode_F7; }
else if (Win32VirtualKey == VK_F8) { Result = (int)KeyCode_F8; }
else if (Win32VirtualKey == VK_F9) { Result = (int)KeyCode_F9; }
else if (Win32VirtualKey == VK_F10) { Result = (int)KeyCode_F10; }
else if (Win32VirtualKey == VK_F11) { Result = (int)KeyCode_F11; }
else if (Win32VirtualKey == VK_F12) { Result = (int)KeyCode_F12; }
if (!TranslateToChar)
{
if (Win32VirtualKey == 0x30) { Result = (int)KeyCode_0; }
else if (Win32VirtualKey == 0x31) { Result = (int)KeyCode_1; }
else if (Win32VirtualKey == 0x32) { Result = (int)KeyCode_2; }
else if (Win32VirtualKey == 0x33) { Result = (int)KeyCode_3; }
else if (Win32VirtualKey == 0x34) { Result = (int)KeyCode_4; }
else if (Win32VirtualKey == 0x35) { Result = (int)KeyCode_5; }
else if (Win32VirtualKey == 0x36) { Result = (int)KeyCode_6; }
else if (Win32VirtualKey == 0x37) { Result = (int)KeyCode_7; }
else if (Win32VirtualKey == 0x38) { Result = (int)KeyCode_8; }
else if (Win32VirtualKey == 0x39) { Result = (int)KeyCode_9; }
else if (Win32VirtualKey == 0x41) { Result = (int)KeyCode_A; }
else if (Win32VirtualKey == 0x42) { Result = (int)KeyCode_B; }
else if (Win32VirtualKey == 0x43) { Result = (int)KeyCode_C; }
else if (Win32VirtualKey == 0x44) { Result = (int)KeyCode_D; }
else if (Win32VirtualKey == 0x45) { Result = (int)KeyCode_E; }
else if (Win32VirtualKey == 0x46) { Result = (int)KeyCode_F; }
else if (Win32VirtualKey == 0x47) { Result = (int)KeyCode_G; }
else if (Win32VirtualKey == 0x48) { Result = (int)KeyCode_H; }
else if (Win32VirtualKey == 0x49) { Result = (int)KeyCode_I; }
else if (Win32VirtualKey == 0x4A) { Result = (int)KeyCode_J; }
else if (Win32VirtualKey == 0x4B) { Result = (int)KeyCode_K; }
else if (Win32VirtualKey == 0x4C) { Result = (int)KeyCode_L; }
else if (Win32VirtualKey == 0x4D) { Result = (int)KeyCode_M; }
else if (Win32VirtualKey == 0x4E) { Result = (int)KeyCode_N; }
else if (Win32VirtualKey == 0x4F) { Result = (int)KeyCode_O; }
else if (Win32VirtualKey == 0x50) { Result = (int)KeyCode_P; }
else if (Win32VirtualKey == 0x51) { Result = (int)KeyCode_Q; }
else if (Win32VirtualKey == 0x52) { Result = (int)KeyCode_R; }
else if (Win32VirtualKey == 0x53) { Result = (int)KeyCode_S; }
else if (Win32VirtualKey == 0x54) { Result = (int)KeyCode_T; }
else if (Win32VirtualKey == 0x55) { Result = (int)KeyCode_U; }
else if (Win32VirtualKey == 0x56) { Result = (int)KeyCode_V; }
else if (Win32VirtualKey == 0x57) { Result = (int)KeyCode_W; }
else if (Win32VirtualKey == 0x58) { Result = (int)KeyCode_X; }
else if (Win32VirtualKey == 0x59) { Result = (int)KeyCode_Y; }
else if (Win32VirtualKey == 0x5A) { Result = (int)KeyCode_Z; }
}
if (NumpadValid)
{
if (Win32VirtualKey == VK_NUMPAD0) { Result = (int)KeyCode_Num0; }
else if (Win32VirtualKey == VK_NUMPAD1) { Result = (int)KeyCode_Num1; }
else if (Win32VirtualKey == VK_NUMPAD2) { Result = (int)KeyCode_Num2; }
else if (Win32VirtualKey == VK_NUMPAD3) { Result = (int)KeyCode_Num3; }
else if (Win32VirtualKey == VK_NUMPAD4) { Result = (int)KeyCode_Num4; }
else if (Win32VirtualKey == VK_NUMPAD5) { Result = (int)KeyCode_Num5; }
else if (Win32VirtualKey == VK_NUMPAD6) { Result = (int)KeyCode_Num6; }
else if (Win32VirtualKey == VK_NUMPAD7) { Result = (int)KeyCode_Num7; }
else if (Win32VirtualKey == VK_NUMPAD8) { Result = (int)KeyCode_Num8; }
else if (Win32VirtualKey == VK_NUMPAD9) { Result = (int)KeyCode_Num9; }
}
if (Win32VirtualKey == VK_UP) { Result = (int)KeyCode_UpArrow; }
else if (Win32VirtualKey == VK_DOWN) { Result = (int)KeyCode_DownArrow; }
else if (Win32VirtualKey == VK_LEFT) { Result = (int)KeyCode_LeftArrow; }
else if (Win32VirtualKey == VK_RIGHT) { Result = (int)KeyCode_RightArrow; }
return Result;
}
internal handle_window_msg_result
HandleWindowsMessage (
HWND WindowHandle,
MSG Message)
{
handle_window_msg_result Result = {};
Result.NeedsUpdate = 0;
switch (Message.message)
{
case WM_HOTKEY:
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_HOTKEY ");
}break;
case WM_MOUSEWHEEL:
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_MOUSEWHEEL ");
int MouseWheel = GET_WHEEL_DELTA_WPARAM(Message.wParam);
/*
Input.New->MouseScroll = MouseWheel;
Result.NeedsUpdate = true;
*/
}break;
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONDOWN:
case WM_MBUTTONUP:
case WM_RBUTTONDOWN:
case WM_RBUTTONUP:
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_MOUSEBUTTON ");
/*
Input.New->KeyStates[KeyCode_MouseLeftButton] = (GetKeyState(VK_LBUTTON) & (1 << 15)) != 0;
Input.New->KeyStates[KeyCode_MouseMiddleButton] = (GetKeyState(VK_MBUTTON) & (1 << 15)) != 0;
Input.New->KeyStates[KeyCode_MouseRightButton] = (GetKeyState(VK_RBUTTON) & (1 << 15)) != 0;
// NOTE(Peter): If you decide to support extra mouse buttons, on windows the key codes are
// VK_XBUTTON1 and VK_XBUTTON2
if (KeyTransitionedDown(KeyCode_MouseLeftButton, Input))
{
Input.MouseDownX = Input.New->MouseX;
Input.MouseDownY = Input.New->MouseY;
}
Result.NeedsUpdate = true;*/
}break;
case WM_MOUSEMOVE:
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_MOUSEMOVE ");
POINT MousePos;
GetCursorPos(&MousePos);
ScreenToClient(WindowHandle, &MousePos);
/*
Input.New->MouseX = MousePos.x;
Input.New->MouseY = App.WindowHeight - MousePos.y;
Result.NeedsUpdate = true;
*/
}break;
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_KEYUP:
{
int VirtualKey = (int)Message.wParam;
bool KeyDown = (Message.lParam & (1 << 31)) == 0;
int KeyIndex = Win32GetKeyIndex(VirtualKey, true, true);
/*
if (KeyIndex >= 0)
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_KEYEvent ");
Input.New->KeyStates[KeyIndex] = KeyDown;
Result.NeedsUpdate = true;
}
else
{
if (Input.TranslateInputToCharValues && KeyDown)
{
// NOTE(Peter): Took this out b/c we're translating the WM_CHAR messages
// in the message pump, and if we do it here as well, character producing
// key messages get put on the message queue twice
TranslateMessage(&Message);
DispatchMessage(&Message);
}
else
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_KEYEvent ");
// NOTE(Peter): This is so that when you lift up a key that was generating a WM_CHAR,
// the app still has a chance to respond to it.
Result.NeedsUpdate = true;
}
}
*/
}break;
case WM_CHAR:
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "WM_CHAR ");
/*
char TranslatedChar = (char)Message.wParam;
int KeyIndex = GetKeyIndexFromChar(TranslatedChar);
if (KeyIndex >= 0)
{
// NOTE(Peter): Always setting this to true becuase windows is stupid and doesn't
// pass the press/release bit through correctly. So now the KEYDOWN/KEYUP Messages above
// only translate the message to a WM_CHAR message if its a key down. Since we clear all
// keystates to false at the beginning of an input frame, this will make transitions
// get registered correctly.
Input.New->KeyStates[KeyIndex] = true;
Result.NeedsUpdate = true;
}
else
{
printf("Translated Char Not Recognized: %c\n", TranslatedChar);
//InvalidCodePath;
}
*/
}break;
default:
{
DEBUG_GET_MESSAGE_NAME(Result.MessageType, "Unhandled WM Event ");
TranslateMessage(&Message);
DispatchMessage(&Message);
}break;
}
return Result;
}
internal void
Win32UpdateWindowDimension(win32_window* Window)
{
RECT ClientRect;
GetClientRect(Window->Handle, &ClientRect);
Window->Info.Width = ClientRect.right - ClientRect.left;
Window->Info.Height = ClientRect.bottom - ClientRect.top;
}
internal void
Win32ResizeDIBSection(win32_offscreen_buffer *Buffer, int Width, int Height)
{
if(Buffer->Memory)
{
VirtualFree(Buffer->Memory, 0, MEM_RELEASE);
}
Buffer->Width = Width;
Buffer->Height = Height;
int BytesPerPixel = 4;
Buffer->BytesPerPixel = BytesPerPixel;
Buffer->Info.bmiHeader.biSize = sizeof(Buffer->Info.bmiHeader);
Buffer->Info.bmiHeader.biWidth = Buffer->Width;
Buffer->Info.bmiHeader.biHeight = -Buffer->Height; // Top down, not bottom up
Buffer->Info.bmiHeader.biPlanes = 1;
Buffer->Info.bmiHeader.biBitCount = 32;
Buffer->Info.bmiHeader.biCompression = BI_RGB;
int BitmapMemorySize = (Buffer->Width*Buffer->Height)*BytesPerPixel;
Buffer->Memory = (u8*)VirtualAlloc(0, BitmapMemorySize, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
Buffer->Pitch = Width*BytesPerPixel;
}
internal void
Win32DisplayBufferInWindow(win32_offscreen_buffer* Buffer, win32_window Window)
{
StretchDIBits(Window.DeviceContext,
0, 0, Buffer->Width, Buffer->Height,
0, 0, Buffer->Width, Buffer->Height,
Buffer->Memory,
&Buffer->Info,
DIB_RGB_COLORS, SRCCOPY);
}
///
// Memory
///
internal win32_memory_op_result
Win32Alloc(s32 Size)
{
win32_memory_op_result Result = {};
Result.Success = false;
Result.Base = (u8*)VirtualAlloc(NULL, Size,
MEM_COMMIT | MEM_RESERVE,
PAGE_EXECUTE_READWRITE);
if (Result.Base)
{
Result.Size = Size;
Result.Success = true;
}
return Result;
}
internal b32
Win32Free(u8* Base, s32 Size)
{
b32 Result = VirtualFree(Base, Size, MEM_RELEASE);
return Result;
}
// File IO
internal win32_memory_op_result
ReadEntireFile(char* Path)
{
win32_memory_op_result Result = {};
Result.Success = false;
HANDLE FileHandle = CreateFileA (
Path,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (FileHandle != INVALID_HANDLE_VALUE)
{
DWORD FileSize = GetFileSize(FileHandle, NULL);
Result.Base = (u8*)VirtualAlloc(NULL, FileSize, MEM_COMMIT | MEM_RESERVE,
PAGE_EXECUTE_READWRITE);
if (Result.Base)
{
Result.Size = FileSize;
s32 BytesRead = 0;
if (ReadFile(FileHandle, (LPVOID)Result.Base, FileSize, (LPDWORD)(&BytesRead), NULL))
{
Result.Success = true;
}
else
{
Result.Size = 0;
}
}
CloseHandle(FileHandle);
}
else
{
// TODO(Peter): failure
}
return Result;
}
internal b32
WriteEntireFile (char* Path, u8* Contents, s32 Size)
{
b32 Result = false;
HANDLE FileHandle = CreateFileA (
Path,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (FileHandle != INVALID_HANDLE_VALUE)
{
DWORD BytesWritten = 0;
b32 WriteSuccess = WriteFile(FileHandle,
Contents, Size,
&BytesWritten,
NULL);
if (WriteSuccess && BytesWritten == (u32)Size)
{
CloseHandle(FileHandle);
Result = true;
}
else
{
Result = false;
}
}
else
{
Result = false;
}
return Result;
}
internal FILETIME
GetFileLastWriteTime(char* Path)
{
FILETIME Result = {};
WIN32_FIND_DATA FindData = {};
HANDLE FileHandle = FindFirstFileA(Path, &FindData);
if (FileHandle != INVALID_HANDLE_VALUE)
{
Result = FindData.ftLastWriteTime;
FindClose(FileHandle);
}
else
{
// TODO(Peter): Error handling
}
return Result;
}
///
// DLL
///
internal executable_path
GetApplicationPath()
{
executable_path ExePath = {};
ExePath.PathLength = GetModuleFileNameA(0, ExePath.Path, MAX_PATH);
u32 CharactersScanned = 0;
u32 IndexOfLastSlash = 0;
char *Scan = ExePath.Path;
while(*Scan)
{
if (*Scan == '\\')
{
ExePath.IndexOfLastSlash = CharactersScanned + 1;
}
Scan++;
CharactersScanned++;
}
return ExePath;
}
internal b32
LoadApplicationDLL(char* DLLName, win32_dll_refresh* DLLResult)
{
b32 Success = false;
Assert(DLLResult->DLL == 0);
DLLResult->DLL = LoadLibraryA(DLLName); // TODO(Peter): Error checking
if (DLLResult->DLL)
{
Success = true;
DLLResult->IsValid = true;
}
return Success;
}
internal void
UnloadApplicationDLL(win32_dll_refresh* DLL)
{
if (DLL->DLL)
{
FreeLibrary(DLL->DLL);
}
DLL->DLL = 0;
DLL->IsValid = false;
}
internal win32_dll_refresh
InitializeDLLHotReloading(char* SourceDLLName,
char* WorkingDLLFileName,
char* LockFileName)
{
win32_dll_refresh Result = {};
Result.IsValid = false;
executable_path ExePath = GetApplicationPath();
Win32ConcatStrings(ExePath.IndexOfLastSlash, ExePath.Path,
Win32StringLength(SourceDLLName), SourceDLLName,
MAX_PATH, Result.SourceDLLPath);
Win32ConcatStrings(ExePath.IndexOfLastSlash, ExePath.Path,
Win32StringLength(WorkingDLLFileName), WorkingDLLFileName,
MAX_PATH, Result.WorkingDLLPath);
Win32ConcatStrings(ExePath.IndexOfLastSlash, ExePath.Path,
Win32StringLength(LockFileName), LockFileName,
MAX_PATH, Result.LockFilePath);
return Result;
}
internal b32
HotLoadDLL(win32_dll_refresh* DLL)
{
b32 DidReload = false;
FILETIME UpdatedLastWriteTime = GetFileLastWriteTime(DLL->SourceDLLPath);
if (CompareFileTime(&UpdatedLastWriteTime, &DLL->LastWriteTime))
{
WIN32_FILE_ATTRIBUTE_DATA Ignored;
if (!GetFileAttributesEx(DLL->LockFilePath, GetFileExInfoStandard, &Ignored))
{
UnloadApplicationDLL(DLL);
CopyFileA(DLL->SourceDLLPath, DLL->WorkingDLLPath, FALSE);
LoadApplicationDLL(DLL->WorkingDLLPath, DLL);
DLL->LastWriteTime = UpdatedLastWriteTime;
DidReload = true;
}
}
return DidReload;
}
#define GS_WIN32_H #define GS_WIN32_H
#endif // GS_WIN32_H #endif // GS_WIN32_H

31
interface.h
View File

@ -110,24 +110,31 @@ DrawString (render_command_buffer* RenderBuffer, string String, bitmap_font* Fon
v2 LowerRight = Position; v2 LowerRight = Position;
render_quad_batch_constructor BatchConstructor = PushRenderTexture2DBatch(RenderBuffer, String.Length, render_quad_batch_constructor BatchConstructor = PushRenderTexture2DBatch(RenderBuffer, String.Length,
*Font->Atlas); Font->BitmapMemory,
Font->BitmapTextureHandle,
Font->BitmapWidth,
Font->BitmapHeight,
Font->BitmapBytesPerPixel,
Font->BitmapStride);
r32 FontScale = (r32)PointSize / Font->PixelHeight; r32 FontScale = (r32)PointSize / Font->PixelHeight;
v2 RegisterPosition = Position; v2 RegisterPosition = Position;
char* C = String.Memory; char* C = String.Memory;
for (s32 i = 0; i < String.Length; i++) for (s32 i = 0; i < String.Length; i++)
{ {
s32 GlyphDataIndex = GetCharacterIndexInFont(*C, Font); s32 GlyphDataIndex = GetIndexForCodepoint(*Font, *C);
character_data Data = Font->CharacterLUT_Values[GlyphDataIndex]; codepoint_bitmap CodepointInfo = Font->CodepointValues[GlyphDataIndex];
r32 MinX = RegisterPosition.x + Data.RegisterXOffset * FontScale; r32 MinX = RegisterPosition.x + CodepointInfo.XOffset * FontScale;
r32 MinY = RegisterPosition.y + Data.BaselineYOffset * FontScale; r32 MinY = RegisterPosition.y + CodepointInfo.YOffset * FontScale;
r32 MaxX = MinX + (Data.X1 - Data.X0) * FontScale; r32 MaxX = MinX + (CodepointInfo.Width) * FontScale;
r32 MaxY = MinY + (Data.Y1 - Data.Y0) * FontScale; r32 MaxY = MinY + (CodepointInfo.Height) * FontScale;
PushQuad2DOnBatch(&BatchConstructor, v2{MinX, MinY}, v2{MaxX, MinY}, v2{MaxX, MaxY}, v2{MinX, MaxY}, Data.AtlasMinUV, Data.AtlasMaxUV, Color); v2 MinUV = v2{(r32)CodepointInfo.BitmapX, (r32)CodepointInfo.BitmapY};
v2 MaxUV = MinUV + v2{(r32)CodepointInfo.Width, (r32)CodepointInfo.Height};
PushQuad2DOnBatch(&BatchConstructor, v2{MinX, MinY}, v2{MaxX, MinY}, v2{MaxX, MaxY}, v2{MinX, MaxY}, MinUV, MaxUV, Color);
RegisterPosition.x += Data.Advance * Font->FontScale * FontScale; RegisterPosition.x += CodepointInfo.Width * FontScale;
C++; C++;
} }
@ -352,7 +359,7 @@ EvaluatePanel (render_command_buffer* RenderBuffer, v2 Min, v2 Max, string Label
v2 TextPos = v2{ v2 TextPos = v2{
Min.x + Config.Margin.x, Min.x + Config.Margin.x,
Max.y - (Config.Font->NewLineYOffset + Config.Margin.y) Max.y - ((r32)NewLineYOffset(*Config.Font) + Config.Margin.y)
}; };
DrawString(RenderBuffer, Label, Config.Font, 14, TextPos, Config.TextColor); DrawString(RenderBuffer, Label, Config.Font, 14, TextPos, Config.TextColor);
Result.ChildMax = v2{Max.x, TextPos.y} - Config.Margin; Result.ChildMax = v2{Max.x, TextPos.y} - Config.Margin;
@ -396,7 +403,7 @@ DrawOptionsList(render_command_buffer* RenderBuffer, v2 Min, v2 Max,
Result.StartIndex = Start; Result.StartIndex = Start;
Result.Selection = Selection_None; Result.Selection = Selection_None;
r32 OptionHeight = Config.Font->NewLineYOffset + (2 * Config.Margin.y); r32 OptionHeight = NewLineYOffset(*Config.Font) + (2 * Config.Margin.y);
r32 OptionOffset = OptionHeight + Config.Margin.y; r32 OptionOffset = OptionHeight + Config.Margin.y;
s32 OptionsToDisplay = ((Max.y - Min.y) / OptionHeight) - 2; s32 OptionsToDisplay = ((Max.y - Min.y) / OptionHeight) - 2;
@ -453,7 +460,7 @@ DrawSelectableOptionsList(render_command_buffer* RenderBuffer, v2 Min, v2 Max,
Result.StartIndex = Start; Result.StartIndex = Start;
Result.Selection = Selection_None; Result.Selection = Selection_None;
r32 OptionHeight = Config.Font->NewLineYOffset + (2 * Config.Margin.y); r32 OptionHeight = NewLineYOffset(*Config.Font) + (2 * Config.Margin.y);
r32 OptionOffset = OptionHeight + Config.Margin.y; r32 OptionOffset = OptionHeight + Config.Margin.y;
s32 OptionsToDisplay = ((Max.y - Min.y) / OptionHeight) - 2; s32 OptionsToDisplay = ((Max.y - Min.y) / OptionHeight) - 2;

16
testmain.cpp Normal file
View File

@ -0,0 +1,16 @@
#include <windows.h>
#include "gs_platform.h"
#include "gs_win32.h"
int main (int ArgCount, char** Args)
{
window MainWindow = PlatformCreateWindow("Test Window", 1024, 768);
win32_opengl_window_info OpenGLInfo = {};
OpenGLInfo.ColorBits = 32;
OpenGLInfo.AlphaBits = 8;
Win32CreateOpenGLContext(OpenGLInfo, MainWindow);
return 0;
}

101
win32_foldhaus.cpp
View File

@ -1,12 +1,12 @@
#include <Winsock2.h> #include <Winsock2.h>
#include <ws2tcpip.h> #include <ws2tcpip.h>
#include <intrin.h> #include <intrin.h>
#include <windowsx.h>
#include <gl/gl.h>
#include "foldhaus_platform.h" #include "foldhaus_platform.h"
#include "gs_win32.h" #include "gs_win32.cpp"
#include "gs_opengl.h"
#include "foldhaus_renderer.cpp" #include "foldhaus_renderer.cpp"
global_variable b32 Running = false; global_variable b32 Running = false;
@ -16,7 +16,7 @@ char DLLName[] = "foldhaus.dll";
char WorkingDLLName[] = "foldhaus_temp.dll"; char WorkingDLLName[] = "foldhaus_temp.dll";
char DLLLockFileName[] = "lock.tmp"; char DLLLockFileName[] = "lock.tmp";
win32_window MainWindow; window MainWindow;
struct worker_thread_entry struct worker_thread_entry
{ {
@ -116,7 +116,7 @@ WorkerThreadProc (LPVOID InputThreadInfo)
PLATFORM_GET_GPU_TEXTURE_HANDLE(Win32GetGPUTextureHandle) PLATFORM_GET_GPU_TEXTURE_HANDLE(Win32GetGPUTextureHandle)
{ {
s32 Handle = SubmitTexture(Width, Height, Memory); s32 Handle = SubmitTexture(Memory, Width, Height);
return Handle; return Handle;
} }
@ -186,7 +186,7 @@ PLATFORM_GET_SEND_ADDRESS_HANDLE(Win32GetSendAddress)
Assert(Win32NetworkAddressHandleCount < Win32NetworkAddressHandleMax); Assert(Win32NetworkAddressHandleCount < Win32NetworkAddressHandleMax);
s32 NewAddressIndex = Win32NetworkAddressHandleCount++; s32 NewAddressIndex = Win32NetworkAddressHandleCount++;
NetworkAddressValues[NewAddressIndex].sin_family = Family; NetworkAddressValues[NewAddressIndex].sin_family = AddressFamily;
NetworkAddressValues[NewAddressIndex].sin_port = HostToNetU16(Port); NetworkAddressValues[NewAddressIndex].sin_port = HostToNetU16(Port);
NetworkAddressValues[NewAddressIndex].sin_addr.s_addr = HostToNetU32(Address); NetworkAddressValues[NewAddressIndex].sin_addr.s_addr = HostToNetU32(Address);
@ -233,6 +233,50 @@ PLATFORM_CLOSE_SOCKET(Win32CloseSocket)
closesocket(SocketValues[SocketIndex].Socket); closesocket(SocketValues[SocketIndex].Socket);
} }
GET_FONT_INFO(Win32GetFontInfo)
{
platform_font_info Result = {};
Result.DrawingDC = CreateCompatibleDC(NULL);
SetBkColor(Result.DrawingDC, RGB(0, 0, 0));
SetTextColor(Result.DrawingDC, RGB(255, 255, 255));
Result.Bitmap = CreateCompatibleBitmap(NULL, PixelHeight * 2, PixelHeight * 2);
SelectObject(Result.DrawingDC, Result.Bitmap);
Result.Font= CreateFont(PixelHeight, 0, 0, 0,
// TODO(Peter): Font weight, need a platform way to request others
FW_NORMAL,
FALSE, // Italic
FALSE, // Underling
FALSE, // Strikeout,
ANSI_CHARSET,
OUT_OUTLINE_PRECIS,
CLIP_DEFAULT_PRECIS,
PROOF_QUALITY,
FIXED_PITCH,
FontName);
SelectFont(Result.DrawingDC, Result.Font);
TEXTMETRIC WindowsFontMetrics = {};
if (GetTextMetrics(Result.DrawingDC, &WindowsFontMetrics))
{
Result.PixelHeight = WindowsFontMetrics.tmHeight;
Result.Ascent = WindowsFontMetrics.tmAscent;
Result.Descent = WindowsFontMetrics.tmDescent;
Result.Leading = WindowsFontMetrics.tmExternalLeading;
Result.MaxCharWidth = WindowsFontMetrics.tmMaxCharWidth;
Result.CodepointStart = WindowsFontMetrics.tmFirstChar;
Result.CodepointOnePastLast = WindowsFontMetrics.tmLastChar + 1;
}
return Result;
}
DRAW_FONT_CODEPOINT(Win32DrawFontCodepoint)
{
}
LRESULT CALLBACK LRESULT CALLBACK
HandleWindowEvents (HWND WindowHandle, UINT Msg, WPARAM WParam, LPARAM LParam) HandleWindowEvents (HWND WindowHandle, UINT Msg, WPARAM WParam, LPARAM LParam)
{ {
@ -281,14 +325,13 @@ HandleWindowEvents (HWND WindowHandle, UINT Msg, WPARAM WParam, LPARAM LParam)
} }
internal void internal void
HandleWindowMessage (MSG Message, win32_window* Window, input_frame* InputFrame) HandleWindowMessage (MSG Message, window* Window, input_frame* InputFrame)
{ {
switch (Message.message) switch (Message.message)
{ {
case WM_MOUSEWHEEL: case WM_MOUSEWHEEL:
{ {
int MouseWheel = GET_WHEEL_DELTA_WPARAM(Message.wParam); Win32UpdateInputFrameMouseWheelDelta(InputFrame, Message);
InputFrame->MouseScroll = MouseWheel;
}break; }break;
case WM_LBUTTONDOWN: case WM_LBUTTONDOWN:
@ -298,11 +341,7 @@ HandleWindowMessage (MSG Message, win32_window* Window, input_frame* InputFrame)
case WM_RBUTTONDOWN: case WM_RBUTTONDOWN:
case WM_RBUTTONUP: case WM_RBUTTONUP:
{ {
InputFrame->KeysDown[KeyCode_MouseLeftButton] = (GetKeyState(VK_LBUTTON) & (1 << 15)) != 0; Win32UpdateInputFrameMouseState(InputFrame);
InputFrame->KeysDown[KeyCode_MouseMiddleButton] = (GetKeyState(VK_MBUTTON) & (1 << 15)) != 0;
InputFrame->KeysDown[KeyCode_MouseRightButton] = (GetKeyState(VK_RBUTTON) & (1 << 15)) != 0;
// NOTE(Peter): If you decide to support extra mouse buttons, on windows the key codes are
// VK_XBUTTON1 and VK_XBUTTON2
}break; }break;
case WM_SYSKEYDOWN: case WM_SYSKEYDOWN:
@ -342,9 +381,10 @@ internal void
DebugPrint (char* Format, ...) DebugPrint (char* Format, ...)
{ {
char Buffer[256]; char Buffer[256];
string StringBuffer = MakeString(Buffer, 256);
va_list Args; va_list Args;
va_start(Args, Format); va_start(Args, Format);
PrintFInternal(Buffer, 256, Format, Args); PrintF(&StringBuffer, Format, Args);
OutputDebugStringA(Buffer); OutputDebugStringA(Buffer);
va_end(Args); va_end(Args);
} }
@ -376,14 +416,7 @@ PSTR CmdLineArgs,
INT NCmdShow INT NCmdShow
) )
{ {
win32_window_info MainWindowInfo = {}; MainWindow = Win32CreateWindow (HInstance, "Foldhaus", 1440, 768, HandleWindowEvents);
MainWindowInfo.Name = "Foldhaus";
MainWindowInfo.ClassName = "Foldhaus Window Class";
MainWindowInfo.Width = 1440;
MainWindowInfo.Height = 768;
MainWindowInfo.WindowEventsHandler = HandleWindowEvents;
MainWindow = CreateWin32Window (HInstance, MainWindowInfo);
Win32UpdateWindowDimension(&MainWindow); Win32UpdateWindowDimension(&MainWindow);
win32_opengl_window_info OpenGLWindowInfo = {}; win32_opengl_window_info OpenGLWindowInfo = {};
@ -393,6 +426,10 @@ INT NCmdShow
CreateOpenGLWindowContext(OpenGLWindowInfo, &MainWindow); CreateOpenGLWindowContext(OpenGLWindowInfo, &MainWindow);
s64 PerformanceCountFrequency = GetPerformanceFrequency(); s64 PerformanceCountFrequency = GetPerformanceFrequency();
s64 LastFrameEnd = GetWallClock();
r32 TargetSecondsPerFrame = 1 / 60.0f;
r32 LastFrameSecondsElapsed = 0.0f;
GlobalDebugServices = (debug_services*)malloc(sizeof(debug_services)); GlobalDebugServices = (debug_services*)malloc(sizeof(debug_services));
InitDebugServices(GlobalDebugServices, (u8*)malloc(Megabytes(8)), Megabytes(8), 1000, PerformanceCountFrequency); InitDebugServices(GlobalDebugServices, (u8*)malloc(Megabytes(8)), Megabytes(8), 1000, PerformanceCountFrequency);
GlobalDebugServices->GetWallClock = GetWallClock; GlobalDebugServices->GetWallClock = GetWallClock;
@ -431,21 +468,23 @@ INT NCmdShow
context Context = {}; context Context = {};
Context.MemorySize = InitialMemory.Size; Context.MemorySize = InitialMemory.Size;
Context.MemoryBase = InitialMemory.Base; Context.MemoryBase = InitialMemory.Base;
Context.WindowWidth = MainWindow.Info.Width; Context.WindowWidth = MainWindow.Width;
Context.WindowHeight = MainWindow.Info.Height; Context.WindowHeight = MainWindow.Height;
// Platform functions // Platform functions
Context.GeneralWorkQueue = &WorkQueue; Context.GeneralWorkQueue = &WorkQueue;
Context.PlatformAlloc = Win32Alloc; Context.PlatformAlloc = Win32Alloc;
Context.PlatformFree = Win32Free; Context.PlatformFree = Win32Free;
Context.PlatformReadEntireFile = ReadEntireFile; Context.PlatformReadEntireFile = Win32ReadEntireFile;
Context.PlatformWriteEntireFile = WriteEntireFile; Context.PlatformWriteEntireFile = Win32WriteEntireFile;
Context.PlatformGetFilePath = Win32SystemDialogOpenFile; Context.PlatformGetFilePath = Win32SystemDialogueOpenFile;
Context.PlatformGetGPUTextureHandle = Win32GetGPUTextureHandle; Context.PlatformGetGPUTextureHandle = Win32GetGPUTextureHandle;
Context.PlatformGetSocketHandle = Win32GetSocketHandle; Context.PlatformGetSocketHandle = Win32GetSocketHandle;
Context.PlatformGetSendAddress = Win32GetSendAddress; Context.PlatformGetSendAddress = Win32GetSendAddress;
Context.PlatformSetSocketOption = Win32SetSocketOption; Context.PlatformSetSocketOption = Win32SetSocketOption;
Context.PlatformCloseSocket = Win32CloseSocket; Context.PlatformCloseSocket = Win32CloseSocket;
Context.PlatformGetFontInfo = Win32GetFontInfo;
Context.PlatformDrawFontCodepoint = Win32DrawFontCodepoint;
win32_dll_refresh DLLRefresh = InitializeDLLHotReloading(DLLName, WorkingDLLName, DLLLockFileName); win32_dll_refresh DLLRefresh = InitializeDLLHotReloading(DLLName, WorkingDLLName, DLLLockFileName);
if (HotLoadDLL(&DLLRefresh)) if (HotLoadDLL(&DLLRefresh))
@ -490,7 +529,7 @@ INT NCmdShow
GetCursorPos (&MousePos); GetCursorPos (&MousePos);
ScreenToClient(MainWindow.Handle, &MousePos); ScreenToClient(MainWindow.Handle, &MousePos);
Input.New->MouseX = MousePos.x; Input.New->MouseX = MousePos.x;
Input.New->MouseY = MainWindow.Info.Height - MousePos.y; Input.New->MouseY = MainWindow.Height - MousePos.y;
if (KeyTransitionedDown(Input, KeyCode_MouseLeftButton)) if (KeyTransitionedDown(Input, KeyCode_MouseLeftButton))
{ {
@ -501,8 +540,8 @@ INT NCmdShow
// TODO(Peter): We shouldn't need to do this translation. the platform layer knows about win32_windows. We should just make that the interface // TODO(Peter): We shouldn't need to do this translation. the platform layer knows about win32_windows. We should just make that the interface
// to all windows. // to all windows.
Context.WindowWidth = MainWindow.Info.Width; Context.WindowWidth = MainWindow.Width;
Context.WindowHeight = MainWindow.Info.Height; Context.WindowHeight = MainWindow.Height;
Context.DeltaTime = LastFrameSecondsElapsed; Context.DeltaTime = LastFrameSecondsElapsed;
Context.UpdateAndRender(Context, Input, &RenderBuffer); Context.UpdateAndRender(Context, Input, &RenderBuffer);