piwalker/dolphin
1
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-07-23 06:09:50 -06:00
Code Issues Packages Projects Releases Wiki Activity

normalize common filenames in VideoBackends/OGL

Browse Source
This commit is contained in:
Shawn Hoffman
2020-09-15 05:00:24 -07:00
parent 3193f3d5c4
commit ff4f67492b
19 changed files with 64 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files

78
Source/Core/VideoBackends/OGL/OGLBoundingBox.cpp Normal file
View File

@ -0,0 +1,78 @@
// Copyright 2014 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cstring>
#include "Common/GL/GLUtil.h"
#include "VideoBackends/OGL/OGLBoundingBox.h"
#include "VideoBackends/OGL/OGLRender.h"
#include "VideoCommon/DriverDetails.h"
#include "VideoCommon/VideoConfig.h"
static GLuint s_bbox_buffer_id;
namespace OGL
{
void BoundingBox::Init()
{
if (!g_ActiveConfig.backend_info.bSupportsBBox)
return;
int initial_values[4] = {0, 0, 0, 0};
glGenBuffers(1, &s_bbox_buffer_id);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, s_bbox_buffer_id);
glBufferData(GL_SHADER_STORAGE_BUFFER, 4 * sizeof(s32), initial_values, GL_DYNAMIC_DRAW);
glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, s_bbox_buffer_id);
}
void BoundingBox::Shutdown()
{
if (!g_ActiveConfig.backend_info.bSupportsBBox)
return;
glDeleteBuffers(1, &s_bbox_buffer_id);
}
void BoundingBox::Set(int index, int value)
{
if (!g_ActiveConfig.backend_info.bSupportsBBox)
return;
glBindBuffer(GL_SHADER_STORAGE_BUFFER, s_bbox_buffer_id);
glBufferSubData(GL_SHADER_STORAGE_BUFFER, index * sizeof(int), sizeof(int), &value);
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
}
int BoundingBox::Get(int index)
{
if (!g_ActiveConfig.backend_info.bSupportsBBox)
return 0;
int data = 0;
glBindBuffer(GL_SHADER_STORAGE_BUFFER, s_bbox_buffer_id);
if (!DriverDetails::HasBug(DriverDetails::BUG_SLOW_GETBUFFERSUBDATA) &&
!static_cast<Renderer*>(g_renderer.get())->IsGLES())
{
// Using glMapBufferRange to read back the contents of the SSBO is extremely slow
// on nVidia drivers. This is more noticeable at higher internal resolutions.
// Using glGetBufferSubData instead does not seem to exhibit this slowdown.
glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, index * sizeof(int), sizeof(int), &data);
}
else
{
// Using glMapBufferRange is faster on AMD cards by a measurable margin.
void* ptr = glMapBufferRange(GL_SHADER_STORAGE_BUFFER, index * sizeof(int), sizeof(int),
GL_MAP_READ_BIT);
if (ptr)
{
memcpy(&data, ptr, sizeof(int));
glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
}
}
glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0);
return data;
}
}; // namespace OGL