Implemented Renderer11::setViewport.
TRAC #22148
Signed-off-by: Nicolas Capens
Signed-off-by: Daniel Koch
git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1488 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/Renderer11.cpp b/src/libGLESv2/renderer/Renderer11.cpp
index d005406..ab4047d 100644
--- a/src/libGLESv2/renderer/Renderer11.cpp
+++ b/src/libGLESv2/renderer/Renderer11.cpp
@@ -10,6 +10,8 @@
#include "libGLESv2/main.h"
#include "libGLESv2/utilities.h"
#include "libGLESv2/mathutil.h"
+#include "libGLESv2/Program.h"
+#include "libGLESv2/ProgramBinary.h"
#include "libGLESv2/renderer/Renderer11.h"
#include "libGLESv2/renderer/RenderTarget11.h"
#include "libGLESv2/renderer/renderer11_utils.h"
@@ -382,8 +384,55 @@
unsigned int renderTargetWidth, unsigned int renderTargetHeight,
gl::ProgramBinary *currentProgram, bool forceSetUniforms)
{
- // TODO
- UNIMPLEMENTED();
+ bool viewportChanged = mForceSetViewport || memcmp(&viewport, &mCurViewport, sizeof(gl::Rectangle)) != 0 ||
+ zNear != mCurNear || zFar != mCurFar;
+
+ D3D11_VIEWPORT dxViewport;
+ dxViewport.TopLeftX = gl::clamp(viewport.x, 0, static_cast<int>(renderTargetWidth));
+ dxViewport.TopLeftY = gl::clamp(viewport.y, 0, static_cast<int>(renderTargetHeight));
+ dxViewport.Width = gl::clamp(viewport.width, 0, static_cast<int>(renderTargetWidth) - static_cast<int>(dxViewport.TopLeftX));
+ dxViewport.Height = gl::clamp(viewport.height, 0, static_cast<int>(renderTargetHeight) - static_cast<int>(dxViewport.TopLeftY));
+ dxViewport.MinDepth = zNear;
+ dxViewport.MaxDepth = zFar;
+
+ if (dxViewport.Width <= 0 || dxViewport.Height <= 0)
+ {
+ return false; // Nothing to render
+ }
+
+ if (viewportChanged)
+ {
+ mDeviceContext->RSSetViewports(1, &dxViewport);
+
+ mCurViewport = viewport;
+ mCurNear = zNear;
+ mCurFar = zFar;
+ }
+
+ if (currentProgram && (viewportChanged || forceSetUniforms))
+ {
+ GLint halfPixelSize = currentProgram->getDxHalfPixelSizeLocation();
+ GLfloat xy[2] = { 0.0f, 0.0f };
+ currentProgram->setUniform2fv(halfPixelSize, 1, xy);
+
+ // These values are used for computing gl_FragCoord in Program::linkVaryings().
+ GLint coord = currentProgram->getDxCoordLocation();
+ GLfloat whxy[4] = { viewport.width * 0.5f,
+ viewport.height * 0.5f,
+ viewport.x + (viewport.width * 0.5f),
+ viewport.y + (viewport.height * 0.5f) };
+ currentProgram->setUniform4fv(coord, 1, whxy);
+
+ GLint depth = currentProgram->getDxDepthLocation();
+ GLfloat dz[2] = { (zFar - zNear) * 0.5f, (zNear + zFar) * 0.5f };
+ currentProgram->setUniform2fv(depth, 1, dz);
+
+ GLint depthRange = currentProgram->getDxDepthRangeLocation();
+ GLfloat nearFarDiff[3] = { zNear, zFar, zFar - zNear };
+ currentProgram->setUniform3fv(depthRange, 1, nearFarDiff);
+ }
+
+ mForceSetViewport = false;
return true;
}
@@ -393,6 +442,7 @@
UNIMPLEMENTED();
mForceSetScissor = true;
+ mForceSetViewport = true;
return true;
}
@@ -423,6 +473,7 @@
mForceSetRasterState = true;
mForceSetDepthStencilState = true;
mForceSetScissor = true;
+ mForceSetViewport = true;
}
void Renderer11::releaseDeviceResources()