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Merge pull request #3805 from ReinUsesLisp/preserve-contents

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texture_cache: Reintroduce preserve_contents accurately
This commit is contained in:
bunnei 2020-04-30 12:56:19 -04:00 • committed by GitHub
commit da2b8295e1
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 81 additions and 41 deletions
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49
src/video_core/renderer_opengl/gl_rasterizer.cpp
View file

@ -348,7 +348,7 @@ void RasterizerOpenGL::ConfigureFramebuffers() {
texture_cache.GuardRenderTargets(true);
View depth_surface = texture_cache.GetDepthBufferSurface();
View depth_surface = texture_cache.GetDepthBufferSurface(true);
const auto& regs = gpu.regs;
UNIMPLEMENTED_IF(regs.rt_separate_frag_data == 0);
@ -357,7 +357,7 @@ void RasterizerOpenGL::ConfigureFramebuffers() {
FramebufferCacheKey key;
const auto colors_count = static_cast<std::size_t>(regs.rt_control.count);
for (std::size_t index = 0; index < colors_count; ++index) {
View color_surface{texture_cache.GetColorBufferSurface(index)};
View color_surface{texture_cache.GetColorBufferSurface(index, true)};
if (!color_surface) {
continue;
}
@ -381,28 +381,52 @@ void RasterizerOpenGL::ConfigureFramebuffers() {
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer_cache.GetFramebuffer(key));
}
void RasterizerOpenGL::ConfigureClearFramebuffer(bool using_color_fb, bool using_depth_fb,
bool using_stencil_fb) {
void RasterizerOpenGL::ConfigureClearFramebuffer(bool using_color, bool using_depth_stencil) {
auto& gpu = system.GPU().Maxwell3D();
const auto& regs = gpu.regs;
texture_cache.GuardRenderTargets(true);
View color_surface;
if (using_color_fb) {
if (using_color) {
// Determine if we have to preserve the contents.
// First we have to make sure all clear masks are enabled.
bool preserve_contents = !regs.clear_buffers.R || !regs.clear_buffers.G ||
!regs.clear_buffers.B || !regs.clear_buffers.A;
const std::size_t index = regs.clear_buffers.RT;
color_surface = texture_cache.GetColorBufferSurface(index);
if (regs.clear_flags.scissor) {
// Then we have to confirm scissor testing clears the whole image.
const auto& scissor = regs.scissor_test[0];
preserve_contents |= scissor.min_x > 0;
preserve_contents |= scissor.min_y > 0;
preserve_contents |= scissor.max_x < regs.rt[index].width;
preserve_contents |= scissor.max_y < regs.rt[index].height;
}
color_surface = texture_cache.GetColorBufferSurface(index, preserve_contents);
texture_cache.MarkColorBufferInUse(index);
}
View depth_surface;
if (using_depth_fb || using_stencil_fb) {
depth_surface = texture_cache.GetDepthBufferSurface();
if (using_depth_stencil) {
bool preserve_contents = false;
if (regs.clear_flags.scissor) {
// For depth stencil clears we only have to confirm scissor test covers the whole image.
const auto& scissor = regs.scissor_test[0];
preserve_contents |= scissor.min_x > 0;
preserve_contents |= scissor.min_y > 0;
preserve_contents |= scissor.max_x < regs.zeta_width;
preserve_contents |= scissor.max_y < regs.zeta_height;
}
depth_surface = texture_cache.GetDepthBufferSurface(preserve_contents);
texture_cache.MarkDepthBufferInUse();
}
texture_cache.GuardRenderTargets(false);
FramebufferCacheKey key;
key.colors[0] = color_surface;
key.zeta = depth_surface;
key.colors[0] = std::move(color_surface);
key.zeta = std::move(depth_surface);
state_tracker.NotifyFramebuffer();
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, framebuffer_cache.GetFramebuffer(key));
@ -422,8 +446,7 @@ void RasterizerOpenGL::Clear() {
if (regs.clear_buffers.R || regs.clear_buffers.G || regs.clear_buffers.B ||
regs.clear_buffers.A) {
use_color = true;
}
if (use_color) {
state_tracker.NotifyColorMask0();
glColorMaski(0, regs.clear_buffers.R != 0, regs.clear_buffers.G != 0,
regs.clear_buffers.B != 0, regs.clear_buffers.A != 0);
@ -461,7 +484,7 @@ void RasterizerOpenGL::Clear() {
UNIMPLEMENTED_IF(regs.clear_flags.viewport);
ConfigureClearFramebuffer(use_color, use_depth, use_stencil);
ConfigureClearFramebuffer(use_color, use_depth || use_stencil);
if (use_color) {
glClearBufferfv(GL_COLOR, 0, regs.clear_color);

3
src/video_core/renderer_opengl/gl_rasterizer.h
View file

@ -95,7 +95,8 @@ private:
/// Configures the color and depth framebuffer states.
void ConfigureFramebuffers();
void ConfigureClearFramebuffer(bool using_color_fb, bool using_depth_fb, bool using_stencil_fb);
/// Configures the color and depth framebuffer for clearing.
void ConfigureClearFramebuffer(bool using_color, bool using_depth_stencil);
/// Configures the current constbuffers to use for the draw command.
void SetupDrawConstBuffers(std::size_t stage_index, const Shader& shader);