eden-emu
/
eden
mirror of https://git.eden-emu.dev/eden-emu/eden.git
1
0
Fork 0
Code Releases Wiki Activity
Browse Source

gl_rasterizer: Implement clear for non-zero render targets. 

- Several misc. changes to ConfigureFramebuffers in support of this.
pull/15/merge
bunnei 7 years ago
parent
ac959799e4
commit
035e6bd407
2 changed files with 66 additions and 50 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 103
      src/video_core/renderer_opengl/gl_rasterizer.cpp
  2. 13
      src/video_core/renderer_opengl/gl_rasterizer.h

103
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -294,19 +294,12 @@ void RasterizerOpenGL::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
cached_pages.add({pages_interval, delta});
}
void RasterizerOpenGL::ConfigureFramebuffers(bool using_depth_fb, bool preserve_contents) {
void RasterizerOpenGL::ConfigureFramebuffers(bool using_color_fb, bool using_depth_fb,
bool preserve_contents,
boost::optional<size_t> single_color_target) {
MICROPROFILE_SCOPE(OpenGL_Framebuffer);
const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
const bool has_stencil = regs.stencil_enable;
const bool write_color_fb =
state.color_mask.red_enabled == GL_TRUE || state.color_mask.green_enabled == GL_TRUE ||
state.color_mask.blue_enabled == GL_TRUE || state.color_mask.alpha_enabled == GL_TRUE;
const bool write_depth_fb =
(state.depth.test_enabled && state.depth.write_mask == GL_TRUE) ||
(has_stencil && (state.stencil.front.write_mask || state.stencil.back.write_mask));
Surface depth_surface;
if (using_depth_fb) {
depth_surface = res_cache.GetDepthBufferSurface(preserve_contents);
@ -321,19 +314,41 @@ void RasterizerOpenGL::ConfigureFramebuffers(bool using_depth_fb, bool preserve_
state.draw.draw_framebuffer = framebuffer.handle;
state.Apply();
std::array<GLenum, Maxwell::NumRenderTargets> buffers;
for (size_t index = 0; index < Maxwell::NumRenderTargets; ++index) {
Surface color_surface = res_cache.GetColorBufferSurface(index, preserve_contents);
buffers[index] = GL_COLOR_ATTACHMENT0 + regs.rt_control.GetMap(index);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(index), GL_TEXTURE_2D,
color_surface != nullptr ? color_surface->Texture().handle : 0, 0);
if (using_color_fb) {
if (single_color_target) {
// Used when just a single color attachment is enabled, e.g. for clearing a color buffer
Surface color_surface =
res_cache.GetColorBufferSurface(*single_color_target, preserve_contents);
glFramebufferTexture2D(
GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(*single_color_target), GL_TEXTURE_2D,
color_surface != nullptr ? color_surface->Texture().handle : 0, 0);
glDrawBuffer(GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(*single_color_target));
} else {
// Multiple color attachments are enabled
std::array<GLenum, Maxwell::NumRenderTargets> buffers;
for (size_t index = 0; index < Maxwell::NumRenderTargets; ++index) {
Surface color_surface = res_cache.GetColorBufferSurface(index, preserve_contents);
buffers[index] = GL_COLOR_ATTACHMENT0 + regs.rt_control.GetMap(index);
glFramebufferTexture2D(
GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(index),
GL_TEXTURE_2D, color_surface != nullptr ? color_surface->Texture().handle : 0,
0);
}
glDrawBuffers(regs.rt_control.count, buffers.data());
}
} else {
// No color attachments are enabled - zero out all of them
for (size_t index = 0; index < Maxwell::NumRenderTargets; ++index) {
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0 + static_cast<GLenum>(index), GL_TEXTURE_2D,
0, 0);
}
glDrawBuffer(GL_NONE);
}
glDrawBuffers(regs.rt_control.count, buffers.data());
if (depth_surface) {
if (has_stencil) {
if (regs.stencil_enable) {
// Attach both depth and stencil
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
depth_surface->Texture().handle, 0);
@ -360,8 +375,9 @@ void RasterizerOpenGL::Clear() {
SCOPE_EXIT({ prev_state.Apply(); });
const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
bool use_color_fb = false;
bool use_depth_fb = false;
bool use_color{};
bool use_depth{};
bool use_stencil{};
OpenGLState clear_state;
clear_state.draw.draw_framebuffer = state.draw.draw_framebuffer;
@ -370,22 +386,13 @@ void RasterizerOpenGL::Clear() {
clear_state.color_mask.blue_enabled = regs.clear_buffers.B ? GL_TRUE : GL_FALSE;
clear_state.color_mask.alpha_enabled = regs.clear_buffers.A ? GL_TRUE : GL_FALSE;
GLbitfield clear_mask{};
if (regs.clear_buffers.R || regs.clear_buffers.G || regs.clear_buffers.B ||
regs.clear_buffers.A) {
if (regs.clear_buffers.RT == 0) {
// We only support clearing the first color attachment for now
clear_mask |= GL_COLOR_BUFFER_BIT;
use_color_fb = true;
} else {
// TODO(subv): Add support for the other color attachments
LOG_CRITICAL(HW_GPU, "Clear unimplemented for RT {}", regs.clear_buffers.RT);
}
use_color = true;
}
if (regs.clear_buffers.Z) {
ASSERT_MSG(regs.zeta_enable != 0, "Tried to clear Z but buffer is not enabled!");
use_depth_fb = true;
clear_mask |= GL_DEPTH_BUFFER_BIT;
use_depth = true;
// Always enable the depth write when clearing the depth buffer. The depth write mask is
// ignored when clearing the buffer in the Switch, but OpenGL obeys it so we set it to true.
@ -394,33 +401,33 @@ void RasterizerOpenGL::Clear() {
}
if (regs.clear_buffers.S) {
ASSERT_MSG(regs.zeta_enable != 0, "Tried to clear stencil but buffer is not enabled!");
use_depth_fb = true;
clear_mask |= GL_STENCIL_BUFFER_BIT;
use_stencil = true;
clear_state.stencil.test_enabled = true;
}
if (!use_color_fb && !use_depth_fb) {
if (!use_color && !use_depth && !use_stencil) {
// No color surface nor depth/stencil surface are enabled
return;
}
if (clear_mask == 0) {
// No clear mask is enabled
return;
}
ScopeAcquireGLContext acquire_context{emu_window};
ConfigureFramebuffers(use_depth_fb, false);
ConfigureFramebuffers(use_color, use_depth || use_stencil, false,
regs.clear_buffers.RT.Value());
clear_state.Apply();
glClearColor(regs.clear_color[0], regs.clear_color[1], regs.clear_color[2],
regs.clear_color[3]);
glClearDepth(regs.clear_depth);
glClearStencil(regs.clear_stencil);
if (use_color) {
glClearBufferfv(GL_COLOR, regs.clear_buffers.RT, regs.clear_color);
}
glClear(clear_mask);
if (use_depth && use_stencil) {
glClearBufferfi(GL_DEPTH_STENCIL, 0, regs.clear_depth, regs.clear_stencil);
} else if (use_depth) {
glClearBufferfv(GL_DEPTH, 0, &regs.clear_depth);
} else if (use_stencil) {
glClearBufferiv(GL_STENCIL, 0, &regs.clear_stencil);
}
}
void RasterizerOpenGL::DrawArrays() {
@ -433,7 +440,7 @@ void RasterizerOpenGL::DrawArrays() {
ScopeAcquireGLContext acquire_context{emu_window};
ConfigureFramebuffers(true, true);
ConfigureFramebuffers();
SyncDepthTestState();
SyncStencilTestState();

13
src/video_core/renderer_opengl/gl_rasterizer.h
View File

@ -13,6 +13,7 @@
#include <vector>
#include <boost/icl/interval_map.hpp>
#include <boost/optional.hpp>
#include <boost/range/iterator_range.hpp>
#include <glad/glad.h>
@ -97,8 +98,16 @@ private:
GLvec4 border_color;
};
/// Configures the color and depth framebuffer states
void ConfigureFramebuffers(bool using_depth_fb, bool preserve_contents);
/**
* Configures the color and depth framebuffer states.
* @param use_color_fb If true, configure color framebuffers.
* @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.
*/
void ConfigureFramebuffers(bool use_color_fb = true, bool using_depth_fb = true,
bool preserve_contents = true,
boost::optional<size_t> single_color_target = {});
/*
* Configures the current constbuffers to use for the draw command.

Write Preview
Loading…
Cancel
Save