Merge pull request #1334 from tfarley/hw-depth-modifiers

hwrasterizer: Use depth offset

1 files changed, 16 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/gl_rasterizer.cpp b/src/video_core/renderer_opengl/gl_rasterizer.cpp
index 092351dce..291ef737d 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer.cpp
@@ -126,6 +126,7 @@ void RasterizerOpenGL::InitObjects() {
 
 void RasterizerOpenGL::Reset() {
     SyncCullMode();
+    SyncDepthModifiers();
     SyncBlendEnabled();
     SyncBlendFuncs();
     SyncBlendColor();
@@ -194,6 +195,12 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
         SyncCullMode();
         break;
 
+    // Depth modifiers
+    case PICA_REG_INDEX(viewport_depth_range):
+    case PICA_REG_INDEX(viewport_depth_far_plane):
+        SyncDepthModifiers();
+        break;
+
     // Blending
     case PICA_REG_INDEX(output_merger.alphablend_enable):
         SyncBlendEnabled();
@@ -602,6 +609,15 @@ void RasterizerOpenGL::SyncCullMode() {
     }
 }
 
+void RasterizerOpenGL::SyncDepthModifiers() {
+    float depth_scale = -Pica::float24::FromRawFloat24(Pica::g_state.regs.viewport_depth_range).ToFloat32();
+    float depth_offset = Pica::float24::FromRawFloat24(Pica::g_state.regs.viewport_depth_far_plane).ToFloat32() / 2.0f;
+
+    // TODO: Implement scale modifier
+    uniform_block_data.data.depth_offset = depth_offset;
+    uniform_block_data.dirty = true;
+}
+
 void RasterizerOpenGL::SyncBlendEnabled() {
     state.blend.enabled = (Pica::g_state.regs.output_merger.alphablend_enable == 1);
 }