SnapdragonCamera: Add FullScreen Preview when in Panoramic shoot

Changed the Panoramic preview to full screen
Resized the warped preview image to smaller Size
and render on top of the full screen preview image
Warped preview image can be turned on/off

Change-Id: I859839542ce94c5f70d7fe7983e93b5e9534b415

1 files changed, 50 insertions, 2 deletions

diff --git a/jni/feature_mos/src/mosaic_renderer/WarpRenderer.cpp b/jni/feature_mos/src/mosaic_renderer/WarpRenderer.cpp
index af6779a3f..e4755b1ed 100755..100644
--- a/jni/feature_mos/src/mosaic_renderer/WarpRenderer.cpp
+++ b/jni/feature_mos/src/mosaic_renderer/WarpRenderer.cpp
@@ -68,6 +68,51 @@ void WarpRenderer::SetScalingMatrix(float xscale, float yscale)
     mScalingMatrix[15] = 1.0f;
 }
 
+void WarpRenderer::SetRotation(int degree)
+{
+    for(int i=0; i<16; i++)
+    {
+        mRotationMatrix[i] = 0.0f;
+    }
+
+	switch(degree)
+	{
+		case 0:
+			mRotationMatrix[0] = 1.0f;
+			mRotationMatrix[1] = 0.0f;
+			mRotationMatrix[4] = 0.0f;
+			mRotationMatrix[5] = 1.0f;
+			break;
+		case 90:
+			mRotationMatrix[0] = 0.0f;
+			mRotationMatrix[1] = 1.0f;
+			mRotationMatrix[4] = -1.0f;
+			mRotationMatrix[5] = 0.0f;
+			break;
+		case 180:
+			mRotationMatrix[0] = -1.0f;
+			mRotationMatrix[1] = 0.0f;
+			mRotationMatrix[4] = 0.0f;
+			mRotationMatrix[5] = -1.0f;
+			break;
+		case 270:
+			mRotationMatrix[0] = 0.0f;
+			mRotationMatrix[1] = -1.0f;
+			mRotationMatrix[4] = 1.0f;
+			mRotationMatrix[5] = 0.0f;
+			break;
+		default:
+			mRotationMatrix[0] = 1.0f;
+			mRotationMatrix[1] = 0.0f;
+			mRotationMatrix[4] = 0.0f;
+			mRotationMatrix[5] = 1.0f;
+			break;
+	}
+
+    mRotationMatrix[10] = 1.0f;
+    mRotationMatrix[15] = 1.0f;
+}
+
 bool WarpRenderer::InitializeGLProgram()
 {
     bool succeeded = false;
@@ -87,6 +132,7 @@ bool WarpRenderer::InitializeGLProgram()
         mAffinetransLoc  = glGetUniformLocation(glProgram, "u_affinetrans");
         mViewporttransLoc = glGetUniformLocation(glProgram, "u_viewporttrans");
         mScalingtransLoc = glGetUniformLocation(glProgram, "u_scalingtrans");
+        mRotationtransLoc = glGetUniformLocation(glProgram, "u_rotationtrans");
         mTexCoordLoc     = glGetAttribLocation(glProgram, "a_texCoord");
 
         // Get sampler location
@@ -110,7 +156,7 @@ bool WarpRenderer::DrawTexture(GLfloat *affine)
     bool succeeded = false;
     do {
         bool rt = (mFrameBuffer == NULL)?
-                SetupGraphics(mSurfaceWidth, mSurfaceHeight) :
+                SetupGraphics(mSurfaceXOffset, mSurfaceYOffset, mSurfaceWidth, mSurfaceHeight) :
                 SetupGraphics(mFrameBuffer);
 
         if(!rt)
@@ -143,6 +189,7 @@ bool WarpRenderer::DrawTexture(GLfloat *affine)
         glUniformMatrix4fv(mAffinetransLoc, 1, GL_FALSE, affine);
         glUniformMatrix4fv(mViewporttransLoc, 1, GL_FALSE, mViewportMatrix);
         glUniformMatrix4fv(mScalingtransLoc, 1, GL_FALSE, mScalingMatrix);
+        glUniformMatrix4fv(mRotationtransLoc, 1, GL_FALSE, mRotationMatrix);
 
         // And, finally, execute the GL draw command.
         glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_SHORT, g_iIndices);
@@ -161,12 +208,13 @@ const char* WarpRenderer::VertexShaderSource() const
         "uniform mat4 u_affinetrans;  \n"
         "uniform mat4 u_viewporttrans;  \n"
         "uniform mat4 u_scalingtrans;  \n"
+        "uniform mat4 u_rotationtrans;  \n"
         "attribute vec4 a_position;   \n"
         "attribute vec2 a_texCoord;   \n"
         "varying vec2 v_texCoord;     \n"
         "void main()                  \n"
         "{                            \n"
-        "   gl_Position = u_scalingtrans * u_viewporttrans * u_affinetrans * a_position; \n"
+        "   gl_Position = u_scalingtrans * u_viewporttrans * u_affinetrans * u_rotationtrans * a_position; \n"
         "   v_texCoord = a_texCoord;  \n"
         "}                            \n";