diff options
Diffstat (limited to 'src/video_core/renderer_opengl/gl_state.cpp')
| -rw-r--r-- | src/video_core/renderer_opengl/gl_state.cpp | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/src/video_core/renderer_opengl/gl_state.cpp b/src/video_core/renderer_opengl/gl_state.cpp index d9910c6e8..41beb176d 100644 --- a/src/video_core/renderer_opengl/gl_state.cpp +++ b/src/video_core/renderer_opengl/gl_state.cpp @@ -233,6 +233,28 @@ void OpenGLState::ApplyStencilTest() const { config_stencil(GL_BACK, stencil.back, cur_state.stencil.back); } } +// Viewport does not affects glClearBuffer so emulate viewport using scissor test +void OpenGLState::EmulateViewportWithScissor() { + auto& current = viewports[0]; + if (current.scissor.enabled) { + const GLint left = std::max(current.x, current.scissor.x); + const GLint right = + std::max(current.x + current.width, current.scissor.x + current.scissor.width); + const GLint bottom = std::max(current.y, current.scissor.y); + const GLint top = + std::max(current.y + current.height, current.scissor.y + current.scissor.height); + current.scissor.x = std::max(left, 0); + current.scissor.y = std::max(bottom, 0); + current.scissor.width = std::max(right - left, 0); + current.scissor.height = std::max(top - bottom, 0); + } else { + current.scissor.enabled = true; + current.scissor.x = current.x; + current.scissor.y = current.y; + current.scissor.width = current.width; + current.scissor.height = current.height; + } +} void OpenGLState::ApplyViewport() const { if (GLAD_GL_ARB_viewport_array && geometry_shaders.enabled) { @@ -242,7 +264,9 @@ void OpenGLState::ApplyViewport() const { const auto& updated = viewports[i]; if (updated.x != current.x || updated.y != current.y || updated.width != current.width || updated.height != current.height) { - glViewportIndexedf(i, updated.x, updated.y, updated.width, updated.height); + glViewportIndexedf( + i, static_cast<GLfloat>(updated.x), static_cast<GLfloat>(updated.y), + static_cast<GLfloat>(updated.width), static_cast<GLfloat>(updated.height)); } if (updated.depth_range_near != current.depth_range_near || updated.depth_range_far != current.depth_range_far) { @@ -270,8 +294,7 @@ void OpenGLState::ApplyViewport() const { const auto& updated = viewports[0]; if (updated.x != current.x || updated.y != current.y || updated.width != current.width || updated.height != current.height) { - glViewport(static_cast<GLint>(updated.x), static_cast<GLint>(updated.y), - static_cast<GLsizei>(updated.width), static_cast<GLsizei>(updated.height)); + glViewport(updated.x, updated.y, updated.width, updated.height); } if (updated.depth_range_near != current.depth_range_near || updated.depth_range_far != current.depth_range_far) { |