screen

src/display/CMakeLists.txt

@@ -9,6 +9,7 @@ target_sources(${DUSK_TARGET_NAME}
     display.c
     camera.c
     tileset.c
+    screen.c
 )
 
 # Subdirectories

src/display/screen.c

@@ -8,23 +8,265 @@
 #include "screen.h"
 #include "assert/assert.h"
 #include "util/memory.h"
+#include "display/mesh/quad.h"
+
+screen_t SCREEN;
 
 void screenInit() {
   memoryZero(&SCREEN, sizeof(screen_t));
+
+  #if DISPLAY_SIZE_DYNAMIC == 1
+    cameraInitOrthographic(&SCREEN.framebufferCamera);
+    SCREEN.framebufferCamera.viewType = CAMERA_VIEW_TYPE_2D;
+    SCREEN.framebufferCamera._2d.position[0] = 0;
+    SCREEN.framebufferCamera._2d.position[1] = 0;
+    SCREEN.framebufferCamera._2d.zoom = 1.0f;
+
+    quadBuffer(
+      SCREEN.frameBufferMeshVertices,
+      0.0f, 0.0f,
+      1.0f, 1.0f,
+      COLOR_WHITE,
+      0.0f, 0.0f,
+      1.0f, 1.0f
+    );
+    meshInit(
+      &SCREEN.frameBufferMesh,
+      QUAD_PRIMITIVE_TYPE,
+      QUAD_VERTEX_COUNT,
+      SCREEN.frameBufferMeshVertices
+    );
+  #endif
 }
 
 void screenBind() {
-  // Assume framebuffer is already unbound
+  // Assume backbuffer is currently bound.
+  switch(SCREEN.mode) {
+    case SCREEN_MODE_BACKBUFFER: {
+      // Screen mode backbuffer uses the full display size
+      SCREEN.width = frameBufferGetWidth(FRAMEBUFFER_BOUND);
+      SCREEN.height = frameBufferGetHeight(FRAMEBUFFER_BOUND);
+
+      // No needd for a framebuffer.
+      #if DISPLAY_SIZE_DYNAMIC == 1
+        if(SCREEN.framebufferReady) {
+          frameBufferDispose(&SCREEN.framebuffer);
+          SCREEN.framebufferReady = false;
+        }
+      #endif
+      break;
+    }
+
+    #if DISPLAY_SIZE_DYNAMIC == 1
+      case SCREEN_MODE_ASPECT_RATIO: {
+        // Aspect ratio mode, requires a framebuffer.
+        int32_t fbWidth, fbHeight;
+        fbWidth = frameBufferGetWidth(FRAMEBUFFER_BOUND);
+        fbHeight = frameBufferGetHeight(FRAMEBUFFER_BOUND);
+
+        float_t currentAspect = (float_t)fbWidth / (float_t)fbHeight;
+        if(currentAspect == SCREEN.aspectRatio.ratio) {
+          // No need to use framebuffer.
+          SCREEN.width = fbWidth;
+          SCREEN.height = fbHeight;
+
+          if(SCREEN.framebufferReady) {
+            frameBufferDispose(&SCREEN.framebuffer);
+            SCREEN.framebufferReady = false;
+          }
+          return;
+        }
+
+        int32_t newFbWidth, newFbHeight;
+        if(currentAspect > SCREEN.aspectRatio.ratio) {
+          // Wider than target aspect, limit by height
+          newFbWidth = (int32_t)floorf(fbHeight * SCREEN.aspectRatio.ratio);
+          newFbHeight = (int32_t)fbHeight;
+        } else {
+          // Taller than target aspect, limit by width
+          newFbHeight = (int32_t)floorf(fbWidth / SCREEN.aspectRatio.ratio);
+          newFbWidth = (int32_t)fbWidth;
+        }
+
+        if(SCREEN.framebufferReady) {
+          // Is current framebuffer the correct size?
+          int32_t curFbWidth, curFbHeight;
+          curFbWidth = frameBufferGetWidth(&SCREEN.framebuffer);
+          curFbHeight = frameBufferGetHeight(&SCREEN.framebuffer);
+          if(curFbWidth == newFbWidth && curFbHeight == newFbHeight) {
+            // Correct size, nothing to do.
+            SCREEN.width = newFbWidth;
+            SCREEN.height = newFbHeight;
+            frameBufferBind(&SCREEN.framebuffer);
+            return;
+          }
+
+          // Need a new framebuffer.
+          frameBufferDispose(&SCREEN.framebuffer);
+          SCREEN.framebufferReady = false;
+        }
+
+        // Create new framebuffer
+        frameBufferInit(&SCREEN.framebuffer, newFbWidth, newFbHeight);
+        SCREEN.framebufferReady = true;
+        SCREEN.width = newFbWidth;
+        SCREEN.height = newFbHeight;
+
+        // Bind FB
+        frameBufferBind(&SCREEN.framebuffer);
+        break;
+      }
+
+      case SCREEN_MODE_FIXED_HEIGHT: {
+        float_t fbWidth = (float_t)frameBufferGetWidth(FRAMEBUFFER_BOUND);
+        float_t fbHeight = (float_t)frameBufferGetHeight(FRAMEBUFFER_BOUND);
+        float_t fbAspect = fbWidth / fbHeight;
+
+        int32_t newFbWidth, newFbHeight;
+        newFbHeight = SCREEN.fixedHeight.height;
+        newFbWidth = (int32_t)floorf(newFbHeight * fbAspect);
+
+        SCREEN.width = newFbWidth;
+        SCREEN.height = newFbHeight;
+
+        if(fbWidth == newFbWidth && fbHeight == newFbHeight) {
+          // No need to use framebuffer.
+          if(SCREEN.framebufferReady) {
+            frameBufferDispose(&SCREEN.framebuffer);
+            SCREEN.framebufferReady = false;
+          }
+          return;
+        }
+
+        if(SCREEN.framebufferReady) {
+          // Is current framebuffer the correct size?
+          int32_t curFbWidth, curFbHeight;
+          curFbWidth = frameBufferGetWidth(&SCREEN.framebuffer);
+          curFbHeight = frameBufferGetHeight(&SCREEN.framebuffer);
+          if(curFbWidth == newFbWidth && curFbHeight == newFbHeight) {
+            frameBufferBind(&SCREEN.framebuffer);
+            return;
+          }
+
+          // Need a new framebuffer.
+          frameBufferDispose(&SCREEN.framebuffer);
+          SCREEN.framebufferReady = false;
+        }
+
+        // Create a new framebuffer.
+        frameBufferInit(&SCREEN.framebuffer, newFbWidth, newFbHeight);
+        SCREEN.framebufferReady = true;
+        frameBufferBind(&SCREEN.framebuffer);
+        break;
+      }
+    #endif
+
+    default: {
+      assertUnreachable("Invalid screen mode.");
+      break;
+    }
+  }
 }
 
 void screenUnbind() {
+  switch(SCREEN.mode) {
+    case SCREEN_MODE_BACKBUFFER: {
+      // Nothing to do here.
+      break;
+    }
+    
+    #if DISPLAY_SIZE_DYNAMIC == 1
+      case SCREEN_MODE_ASPECT_RATIO:
+      case SCREEN_MODE_FIXED_HEIGHT:
+        if(SCREEN.framebufferReady) frameBufferBind(NULL);
+        break;
+    #endif
 
+    default: {
+      assertUnreachable("Invalid screen mode.");
+      break;
+    }
+  }
 }
 
 void screenRender() {
+  if(SCREEN.mode == SCREEN_MODE_BACKBUFFER) {
+    return;
+  }
 
+  #if DISPLAY_SIZE_DYNAMIC == 1
+    if(
+      SCREEN.mode == SCREEN_MODE_ASPECT_RATIO ||
+      SCREEN.mode == SCREEN_MODE_FIXED_HEIGHT
+    ) {
+      if(!SCREEN.framebufferReady) {
+        // Nothing to do here.
+        return;
+      }
+
+      float_t bbWidth, bbHeight;
+      bbWidth = (float_t)frameBufferGetWidth(FRAMEBUFFER_BOUND);
+      bbHeight = (float_t)frameBufferGetHeight(FRAMEBUFFER_BOUND);
+
+      float_t backBufferAspect = bbWidth / bbHeight;
+
+      // Determine framebuffer centering
+      float_t fbWidth, fbHeight, fbAspect;
+      float_t fbX, fbY;
+
+      fbWidth = frameBufferGetWidth(&SCREEN.framebuffer);
+      fbHeight = frameBufferGetHeight(&SCREEN.framebuffer);
+      fbAspect = fbWidth / fbHeight;
+
+      if(backBufferAspect > fbAspect) {
+        fbHeight = bbHeight;
+        fbWidth = fbHeight * fbAspect;
+        fbX = (bbWidth - fbWidth) * 0.5f;
+        fbY = 0.0f;
+      } else {
+        fbWidth = bbWidth;
+        fbHeight = fbWidth / fbAspect;
+        fbX = 0.0f;
+        fbY = (bbHeight - fbHeight) * 0.5f;
+      }
+
+      float_t centerX = bbWidth * 0.5f;
+      float_t centerY = bbHeight * 0.5f;
+
+      SCREEN.framebufferCamera.orthographic.left = 0.0f;
+      SCREEN.framebufferCamera.orthographic.right = bbWidth;
+      SCREEN.framebufferCamera.orthographic.top = 0.0f;
+      SCREEN.framebufferCamera.orthographic.bottom = bbHeight;
+      quadBuffer(
+        SCREEN.frameBufferMeshVertices,
+        centerX - fbWidth * 0.5f, centerY + fbHeight * 0.5f, // top-left
+        centerX + fbWidth * 0.5f, centerY - fbHeight * 0.5f, // bottom-right
+        COLOR_WHITE,
+        0.0f, 0.0f,
+        1.0f, 1.0f
+      );
+
+      frameBufferClear(
+        FRAMEBUFFER_CLEAR_COLOR | FRAMEBUFFER_CLEAR_DEPTH,
+        COLOR_BLACK
+      );
+      cameraPushMatrix(&SCREEN.framebufferCamera);
+      textureBind(&SCREEN.framebuffer.texture);
+      meshDraw(&SCREEN.frameBufferMesh, 0, -1);
+      cameraPopMatrix();
+
+      return;
+    };
+  #endif
+
+  assertUnreachable("Invalid screen mode.");
 }
 
 void screenDispose() {
-
+  #if DISPLAY_SIZE_DYNAMIC == 1
+    if(SCREEN.framebufferReady) {
+      frameBufferDispose(&SCREEN.framebuffer);
+      SCREEN.framebufferReady = false;
+    }
+  #endif
 }

src/display/screen.h

@@ -7,31 +7,49 @@
 
 #pragma once
 #include "dusk.h"
+#include "display/framebuffer/framebuffer.h"
+#include "display/camera.h"
+#include "display/mesh/quad.h"
 
 typedef enum {
   SCREEN_MODE_BACKBUFFER,
 
   #if DISPLAY_SIZE_DYNAMIC == 1
+    SCREEN_MODE_ASPECT_RATIO,// Maintains aspect at all cost
+    SCREEN_MODE_FIXED_HEIGHT, // Fixed height, width expands/contracts as needed
   #endif
-  // SCREEN_MODE_FIXED_ASPECT,
-  // SCREEN_MODE_FIXED_ASPECT_INTEGER,
-  // SCREEN_MODE_FIXED_HEIGHT,
-  // SCREEN_MODE_FIXED_HEIGHT_INTEGER,
-  // SCREEN_MODE_FIXED_WIDTH,
-  // SCREEN_MODE_FIXED_WIDTH_INTEGER,
-  // SCREEN_MODE_SUPER_RESOLUTION_HEIGHT,
-  // SCREEN_MODE_SUPER_RESOLUTION_WIDTH
 } screenmode_t;
 
+typedef enum {
+  SCREEN_SCALE_MODE_FILL,
+  SCREEN_SCALE_MODE_INTEGER,
+  SCREEN_SCALE_MODE_INEGER_OVERFLOW
+} screenscalemode_t;
+
 typedef struct {
   screenmode_t mode;
+  screenscalemode_t scaleMode;
 
   // Calculated dimensions of the viewport, to be used by the camera
   int32_t width;
   int32_t height;
+
+  #if DISPLAY_SIZE_DYNAMIC == 1
+    framebuffer_t framebuffer;
+    bool_t framebufferReady;
+    camera_t framebufferCamera;
+    mesh_t frameBufferMesh;
+    meshvertex_t frameBufferMeshVertices[QUAD_VERTEX_COUNT];
+  #endif
   
   union {
-
+    struct {
+      float_t ratio;
+    } aspectRatio;
+    
+    struct {
+      int32_t height;
+    } fixedHeight;
   };
 } screen_t;
 

src/game/minesweeper/game.c

@@ -10,8 +10,15 @@
 #include "game/minesweeper/scene/scenesweep.h"
 #include "scene/scenemanager.h"
 #include "console/console.h"
+#include "display/screen.h"
 
 errorret_t gameInit(void) {
+  // Setup screen
+  // SCREEN.mode = SCREEN_MODE_FIXED_HEIGHT;
+  // SCREEN.fixedHeight.height = 270;
+  SCREEN.mode = SCREEN_MODE_ASPECT_RATIO;
+  SCREEN.aspectRatio.ratio = 16.0f / 9.0f;
+
   errorChain(uiInit());
   
   sceneManagerRegisterScene(&SCENE_SWEEP);

src/game/minesweeper/scene/scenesweep.c

@@ -10,6 +10,7 @@
 #include "ui/uiframe.h"
 #include "display/spritebatch/spritebatch.h"
 #include "game/minesweeper/display/sweepboard.h"
+#include "display/screen.h"
 
 scene_t SCENE_SWEEP = {
   .name = "sweep",
@@ -34,9 +35,8 @@ void sceneSweepUpdate(void) {
 }
 
 void sceneSweepRender(void) {
-  float_t w, h;
-  w = 320;
-  h = 240;
+  int32_t w = SCREEN.width;
+  int32_t h = SCREEN.height;
 
   SCENE_SWEEP_DATA.camera.orthographic.left = 0;
   SCENE_SWEEP_DATA.camera.orthographic.right = w;

src/game/minesweeper/ui/ui.c

@@ -9,13 +9,12 @@
 #include "ui/uifps.h"
 #include "ui/uiconsole.h"
 #include "ui/uiframe.h"
-#include "display/framebuffer/framebuffer.h"
+#include "display/screen.h"
 #include "display/spritebatch/spritebatch.h"
 
 #include "display/tileset/tileset_minogram.h"
 #include "display/tileset/tileset_ui.h"
 #include "display/tileset/tileset_ui_frame.h"
-#include "display/tileset/tileset_frame_large.h"
 #include "display/tileset/tileset_background.h"
 
 ui_t UI;
@@ -55,12 +54,9 @@ errorret_t uiInit(void) {
 }
 
 void uiRender(void) {
-  int32_t w = frameBufferGetWidth(FRAMEBUFFER_BOUND);
-  int32_t h = frameBufferGetHeight(FRAMEBUFFER_BOUND);
-
   UI.camera.orthographic.left = 0;
-  UI.camera.orthographic.right = w;
-  UI.camera.orthographic.bottom = h;
+  UI.camera.orthographic.right = SCREEN.width;
+  UI.camera.orthographic.bottom = SCREEN.height;
   UI.camera.orthographic.top = 0;
 
   cameraPushMatrix(&UI.camera);