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gl_rasterizer: Workaround invalid zeta clears 

Some games (like Xenoblade Chronicles 2) clear both depth and stencil
buffers while there's a depth-only texture attached (e.g. D16 Unorm).
This commit reads the zeta format of the bound surface on
ConfigureFramebuffers and returns if depth and/or stencil attachments
were set. This is ignored on DrawArrays but on Clear it's used to just
clear those attachments, bypassing an OpenGL error.
This commit is contained in:
ReinUsesLisp 2019-01-29 02:01:05 -03:00
parent 2561a79c39
commit 07692230ca
2 changed files with 19 additions and 14 deletions
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24
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -486,9 +486,9 @@ void RasterizerOpenGL::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
cached_pages.add({pages_interval, delta});
}
void RasterizerOpenGL::ConfigureFramebuffers(OpenGLState& current_state, bool using_color_fb,
bool using_depth_fb, bool preserve_contents,
std::optional<std::size_t> single_color_target) {
std::pair<bool, bool> RasterizerOpenGL::ConfigureFramebuffers(
OpenGLState& current_state, bool using_color_fb, bool using_depth_fb, bool preserve_contents,
std::optional<std::size_t> single_color_target) {
MICROPROFILE_SCOPE(OpenGL_Framebuffer);
const auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
const auto& regs = gpu.regs;
@ -500,7 +500,7 @@ void RasterizerOpenGL::ConfigureFramebuffers(OpenGLState& current_state, bool us
// Only skip if the previous ConfigureFramebuffers call was from the same kind (multiple or
// single color targets). This is done because the guest registers may not change but the
// host framebuffer may contain different attachments
return;
return current_depth_stencil_usage;
}
current_framebuffer_config_state = fb_config_state;
@ -570,12 +570,14 @@ void RasterizerOpenGL::ConfigureFramebuffers(OpenGLState& current_state, bool us
depth_surface->MarkAsModified(true, res_cache);
fbkey.zeta = depth_surface->Texture().handle;
fbkey.stencil_enable = regs.stencil_enable;
fbkey.stencil_enable = regs.stencil_enable &&
depth_surface->GetSurfaceParams().type == SurfaceType::DepthStencil;
}
SetupCachedFramebuffer(fbkey, current_state);
SyncViewport(current_state);
return current_depth_stencil_usage = {static_cast<bool>(depth_surface), fbkey.stencil_enable};
}
void RasterizerOpenGL::Clear() {
@ -643,8 +645,8 @@ void RasterizerOpenGL::Clear() {
return;
}
ConfigureFramebuffers(clear_state, use_color, use_depth || use_stencil, false,
regs.clear_buffers.RT.Value());
const auto [clear_depth, clear_stencil] = ConfigureFramebuffers(
clear_state, use_color, use_depth || use_stencil, false, regs.clear_buffers.RT.Value());
if (regs.clear_flags.scissor) {
SyncScissorTest(clear_state);
}
@ -659,11 +661,11 @@ void RasterizerOpenGL::Clear() {
glClearBufferfv(GL_COLOR, regs.clear_buffers.RT, regs.clear_color);
}
if (use_depth && use_stencil) {
if (clear_depth && clear_stencil) {
glClearBufferfi(GL_DEPTH_STENCIL, 0, regs.clear_depth, regs.clear_stencil);
} else if (use_depth) {
} else if (clear_depth) {
glClearBufferfv(GL_DEPTH, 0, &regs.clear_depth);
} else if (use_stencil) {
} else if (clear_stencil) {
glClearBufferiv(GL_STENCIL, 0, &regs.clear_stencil);
}
}

9
src/video_core/renderer_opengl/gl_rasterizer.h
View File

@ -122,10 +122,12 @@ private:
* @param using_depth_fb If true, configure the depth/stencil framebuffer.
* @param preserve_contents If true, tries to preserve data from a previously used framebuffer.
* @param single_color_target Specifies if a single color buffer target should be used.
* @returns If depth (first) or stencil (second) are being stored in the bound zeta texture
* (requires using_depth_fb to be true)
*/
void ConfigureFramebuffers(OpenGLState& current_state, bool use_color_fb = true,
bool using_depth_fb = true, bool preserve_contents = true,
std::optional<std::size_t> single_color_target = {});
std::pair<bool, bool> ConfigureFramebuffers(
OpenGLState& current_state, bool use_color_fb = true, bool using_depth_fb = true,
bool preserve_contents = true, std::optional<std::size_t> single_color_target = {});
/**
* Configures the current constbuffers to use for the draw command.
@ -221,6 +223,7 @@ private:
std::map<FramebufferCacheKey, OGLFramebuffer> framebuffer_cache;
FramebufferConfigState current_framebuffer_config_state;
std::pair<bool, bool> current_depth_stencil_usage{};
std::array<SamplerInfo, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> texture_samplers;