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dolphin/Source/Core/VideoBackends/OGL/FramebufferManager.cpp
Lioncash c85e0a2586 FramebufferManagerBase: Return a std::pair from GetTargetSize 
Keeps associated data together. It also eliminates the possibility of out
parameters not being initialized properly. For example, consider the
following example:

-- some FramebufferManager implementation --

void FBMgrImpl::GetTargetSize(u32* width, u32* height) override
{
  // Do nothing
}

-- somewhere else where the function is used --

u32 width, height;
framebuffer_manager_instance->GetTargetSize(&width, &height);

if (texture_width != width) <-- Uninitialized variable usage
{
  ...
}

It makes it much more obvious to spot any initialization issues, because
it requires something to be returned, as opposed to allowing an
implementation to just not do anything.
2017-02-03 15:27:53 -05:00

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// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoBackends/OGL/FramebufferManager.h"
#include <memory>
#include <sstream>
#include <vector>
#include "Common/Common.h"
#include "Common/CommonTypes.h"
#include "Common/GL/GLInterfaceBase.h"
#include "Common/Logging/Log.h"
#include "Core/HW/Memmap.h"
#include "VideoBackends/OGL/Render.h"
#include "VideoBackends/OGL/SamplerCache.h"
#include "VideoBackends/OGL/TextureConverter.h"
#include "VideoCommon/OnScreenDisplay.h"
#include "VideoCommon/VertexShaderGen.h"
#include "VideoCommon/VideoBackendBase.h"
namespace OGL
{
int FramebufferManager::m_targetWidth;
int FramebufferManager::m_targetHeight;
int FramebufferManager::m_msaaSamples;
GLenum FramebufferManager::m_textureType;
std::vector<GLuint> FramebufferManager::m_efbFramebuffer;
GLuint FramebufferManager::m_xfbFramebuffer;
GLuint FramebufferManager::m_efbColor;
GLuint FramebufferManager::m_efbDepth;
GLuint FramebufferManager::m_efbColorSwap; // for hot swap when reinterpreting EFB pixel formats
// Only used in MSAA mode.
std::vector<GLuint> FramebufferManager::m_resolvedFramebuffer;
GLuint FramebufferManager::m_resolvedColorTexture;
GLuint FramebufferManager::m_resolvedDepthTexture;
// reinterpret pixel format
SHADER FramebufferManager::m_pixel_format_shaders[2];
// EFB pokes
GLuint FramebufferManager::m_EfbPokes_VBO;
GLuint FramebufferManager::m_EfbPokes_VAO;
SHADER FramebufferManager::m_EfbPokes;
FramebufferManager::FramebufferManager(int targetWidth, int targetHeight, int msaaSamples)
{
m_xfbFramebuffer = 0;
m_efbColor = 0;
m_efbDepth = 0;
m_efbColorSwap = 0;
m_resolvedColorTexture = 0;
m_resolvedDepthTexture = 0;
m_targetWidth = targetWidth;
m_targetHeight = targetHeight;
m_msaaSamples = msaaSamples;
// The EFB can be set to different pixel formats by the game through the
// BPMEM_ZCOMPARE register (which should probably have a different name).
// They are:
// - 24-bit RGB (8-bit components) with 24-bit Z
// - 24-bit RGBA (6-bit components) with 24-bit Z
// - Multisampled 16-bit RGB (5-6-5 format) with 16-bit Z
// We only use one EFB format here: 32-bit ARGB with 24-bit Z.
// Multisampling depends on user settings.
// The distinction becomes important for certain operations, i.e. the
// alpha channel should be ignored if the EFB does not have one.
glActiveTexture(GL_TEXTURE9);
GLuint glObj[3];
glGenTextures(3, glObj);
m_efbColor = glObj[0];
m_efbDepth = glObj[1];
m_efbColorSwap = glObj[2];
m_EFBLayers = (g_ActiveConfig.iStereoMode > 0) ? 2 : 1;
m_efbFramebuffer.resize(m_EFBLayers);
m_resolvedFramebuffer.resize(m_EFBLayers);
// OpenGL MSAA textures are a different kind of texture type and must be allocated
// with a different function, so we create them separately.
if (m_msaaSamples <= 1)
{
m_textureType = GL_TEXTURE_2D_ARRAY;
glBindTexture(m_textureType, m_efbColor);
glTexParameteri(m_textureType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(m_textureType, 0, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_RGBA,
GL_UNSIGNED_BYTE, nullptr);
glBindTexture(m_textureType, m_efbDepth);
glTexParameteri(m_textureType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(m_textureType, 0, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight,
m_EFBLayers, 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr);
glBindTexture(m_textureType, m_efbColorSwap);
glTexParameteri(m_textureType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(m_textureType, 0, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_RGBA,
GL_UNSIGNED_BYTE, nullptr);
}
else
{
GLenum resolvedType = GL_TEXTURE_2D_ARRAY;
// Only use a layered multisample texture if needed. Some drivers
// slow down significantly with single-layered multisample textures.
if (m_EFBLayers > 1)
{
m_textureType = GL_TEXTURE_2D_MULTISAMPLE_ARRAY;
if (g_ogl_config.bSupports3DTextureStorage)
{
glBindTexture(m_textureType, m_efbColor);
glTexStorage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth,
m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbDepth);
glTexStorage3DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F,
m_targetWidth, m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexStorage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth,
m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, 0);
}
else
{
glBindTexture(m_textureType, m_efbColor);
glTexImage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth,
m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbDepth);
glTexImage3DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F, m_targetWidth,
m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexImage3DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth,
m_targetHeight, m_EFBLayers, false);
glBindTexture(m_textureType, 0);
}
}
else
{
m_textureType = GL_TEXTURE_2D_MULTISAMPLE;
if (g_ogl_config.bSupports2DTextureStorage)
{
glBindTexture(m_textureType, m_efbColor);
glTexStorage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth,
m_targetHeight, false);
glBindTexture(m_textureType, m_efbDepth);
glTexStorage2DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F,
m_targetWidth, m_targetHeight, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexStorage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA8, m_targetWidth,
m_targetHeight, false);
glBindTexture(m_textureType, 0);
}
else
{
glBindTexture(m_textureType, m_efbColor);
glTexImage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth,
m_targetHeight, false);
glBindTexture(m_textureType, m_efbDepth);
glTexImage2DMultisample(m_textureType, m_msaaSamples, GL_DEPTH_COMPONENT32F, m_targetWidth,
m_targetHeight, false);
glBindTexture(m_textureType, m_efbColorSwap);
glTexImage2DMultisample(m_textureType, m_msaaSamples, GL_RGBA, m_targetWidth,
m_targetHeight, false);
glBindTexture(m_textureType, 0);
}
}
// Although we are able to access the multisampled texture directly, we don't do it everywhere.
// The old way is to "resolve" this multisampled texture by copying it into a non-sampled
// texture.
// This would lead to an unneeded copy of the EFB, so we are going to avoid it.
// But as this job isn't done right now, we do need that texture for resolving:
glGenTextures(2, glObj);
m_resolvedColorTexture = glObj[0];
m_resolvedDepthTexture = glObj[1];
glBindTexture(resolvedType, m_resolvedColorTexture);
glTexParameteri(resolvedType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(resolvedType, 0, GL_RGBA, m_targetWidth, m_targetHeight, m_EFBLayers, 0, GL_RGBA,
GL_UNSIGNED_BYTE, nullptr);
glBindTexture(resolvedType, m_resolvedDepthTexture);
glTexParameteri(resolvedType, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(resolvedType, 0, GL_DEPTH_COMPONENT32F, m_targetWidth, m_targetHeight, m_EFBLayers,
0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr);
// Bind resolved textures to resolved framebuffer.
glGenFramebuffers(m_EFBLayers, m_resolvedFramebuffer.data());
glBindFramebuffer(GL_FRAMEBUFFER, m_resolvedFramebuffer[0]);
FramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, resolvedType, m_resolvedColorTexture,
0);
FramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, resolvedType, m_resolvedDepthTexture,
0);
// Bind all the other layers as separate FBOs for blitting.
for (unsigned int i = 1; i < m_EFBLayers; i++)
{
glBindFramebuffer(GL_FRAMEBUFFER, m_resolvedFramebuffer[i]);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_resolvedColorTexture, 0, i);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_resolvedDepthTexture, 0, i);
}
}
// Create XFB framebuffer; targets will be created elsewhere.
glGenFramebuffers(1, &m_xfbFramebuffer);
// Bind target textures to EFB framebuffer.
glGenFramebuffers(m_EFBLayers, m_efbFramebuffer.data());
glBindFramebuffer(GL_FRAMEBUFFER, m_efbFramebuffer[0]);
FramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_textureType, m_efbColor, 0);
FramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_textureType, m_efbDepth, 0);
// Bind all the other layers as separate FBOs for blitting.
for (unsigned int i = 1; i < m_EFBLayers; i++)
{
glBindFramebuffer(GL_FRAMEBUFFER, m_efbFramebuffer[i]);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_efbColor, 0, i);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_efbDepth, 0, i);
}
// EFB framebuffer is currently bound, make sure to clear it before use.
glViewport(0, 0, m_targetWidth, m_targetHeight);
glScissor(0, 0, m_targetWidth, m_targetHeight);
glClearColor(0.f, 0.f, 0.f, 0.f);
glClearDepthf(1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// reinterpret pixel format
const char* vs = m_EFBLayers > 1 ? "void main(void) {\n"
" vec2 rawpos = vec2(gl_VertexID&1, gl_VertexID&2);\n"
" gl_Position = vec4(rawpos*2.0-1.0, 0.0, 1.0);\n"
"}\n" :
"flat out int layer;\n"
"void main(void) {\n"
" layer = 0;\n"
" vec2 rawpos = vec2(gl_VertexID&1, gl_VertexID&2);\n"
" gl_Position = vec4(rawpos*2.0-1.0, 0.0, 1.0);\n"
"}\n";
// The way to sample the EFB is based on the on the current configuration.
// As we use the same sampling way for both interpreting shaders, the sampling
// shader are generated first:
std::string sampler;
if (m_msaaSamples <= 1)
{
// non-msaa, so just fetch the pixel
sampler = "SAMPLER_BINDING(9) uniform sampler2DArray samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" return texelFetch(samp9, pos, 0);\n"
"}\n";
}
else if (g_ActiveConfig.backend_info.bSupportsSSAA)
{
// msaa + sample shading available, so just fetch the sample
// This will lead to sample shading, but it's the only way to not loose
// the values of each sample.
if (m_EFBLayers > 1)
{
sampler = "SAMPLER_BINDING(9) uniform sampler2DMSArray samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" return texelFetch(samp9, pos, gl_SampleID);\n"
"}\n";
}
else
{
sampler = "SAMPLER_BINDING(9) uniform sampler2DMS samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" return texelFetch(samp9, pos.xy, gl_SampleID);\n"
"}\n";
}
}
else
{
// msaa without sample shading: calculate the mean value of the pixel
std::stringstream samples;
samples << m_msaaSamples;
if (m_EFBLayers > 1)
{
sampler = "SAMPLER_BINDING(9) uniform sampler2DMSArray samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" vec4 color = vec4(0.0, 0.0, 0.0, 0.0);\n"
" for(int i=0; i<" +
samples.str() + "; i++)\n"
" color += texelFetch(samp9, pos, i);\n"
" return color / " +
samples.str() + ";\n"
"}\n";
}
else
{
sampler = "SAMPLER_BINDING(9) uniform sampler2DMS samp9;\n"
"vec4 sampleEFB(ivec3 pos) {\n"
" vec4 color = vec4(0.0, 0.0, 0.0, 0.0);\n"
" for(int i=0; i<" +
samples.str() + "; i++)\n"
" color += texelFetch(samp9, pos.xy, i);\n"
" return color / " +
samples.str() + ";\n"
"}\n";
}
}
std::string ps_rgba6_to_rgb8 =
sampler + "flat in int layer;\n"
"out vec4 ocol0;\n"
"void main()\n"
"{\n"
" ivec4 src6 = ivec4(round(sampleEFB(ivec3(gl_FragCoord.xy, layer)) * 63.f));\n"
" ivec4 dst8;\n"
" dst8.r = (src6.r << 2) | (src6.g >> 4);\n"
" dst8.g = ((src6.g & 0xF) << 4) | (src6.b >> 2);\n"
" dst8.b = ((src6.b & 0x3) << 6) | src6.a;\n"
" dst8.a = 255;\n"
" ocol0 = float4(dst8) / 255.f;\n"
"}";
std::string ps_rgb8_to_rgba6 =
sampler + "flat in int layer;\n"
"out vec4 ocol0;\n"
"void main()\n"
"{\n"
" ivec4 src8 = ivec4(round(sampleEFB(ivec3(gl_FragCoord.xy, layer)) * 255.f));\n"
" ivec4 dst6;\n"
" dst6.r = src8.r >> 2;\n"
" dst6.g = ((src8.r & 0x3) << 4) | (src8.g >> 4);\n"
" dst6.b = ((src8.g & 0xF) << 2) | (src8.b >> 6);\n"
" dst6.a = src8.b & 0x3F;\n"
" ocol0 = float4(dst6) / 63.f;\n"
"}";
std::stringstream vertices, layers;
vertices << m_EFBLayers * 3;
layers << m_EFBLayers;
std::string gs = "layout(triangles) in;\n"
"layout(triangle_strip, max_vertices = " +
vertices.str() + ") out;\n"
"flat out int layer;\n"
"void main()\n"
"{\n"
" for (int j = 0; j < " +
layers.str() + "; ++j) {\n"
" for (int i = 0; i < 3; ++i) {\n"
" layer = j;\n"
" gl_Layer = j;\n"
" gl_Position = gl_in[i].gl_Position;\n"
" EmitVertex();\n"
" }\n"
" EndPrimitive();\n"
" }\n"
"}\n";
ProgramShaderCache::CompileShader(m_pixel_format_shaders[0], vs, ps_rgb8_to_rgba6,
(m_EFBLayers > 1) ? gs : "");
ProgramShaderCache::CompileShader(m_pixel_format_shaders[1], vs, ps_rgba6_to_rgb8,
(m_EFBLayers > 1) ? gs : "");
ProgramShaderCache::CompileShader(
m_EfbPokes,
StringFromFormat("in vec2 rawpos;\n"
"in vec4 color0;\n" // color
"in int color1;\n" // depth
"out vec4 v_c;\n"
"out float v_z;\n"
"void main(void) {\n"
" gl_Position = vec4(((rawpos + 0.5) / vec2(640.0, 528.0) * 2.0 - 1.0) * "
"vec2(1.0, -1.0), 0.0, 1.0);\n"
" gl_PointSize = %d.0 / 640.0;\n"
" v_c = color0.bgra;\n"
" v_z = float(color1 & 0xFFFFFF) / 16777216.0;\n"
"}\n",
m_targetWidth),
StringFromFormat("in vec4 %s_c;\n"
"in float %s_z;\n"
"out vec4 ocol0;\n"
"void main(void) {\n"
" ocol0 = %s_c;\n"
" gl_FragDepth = %s_z;\n"
"}\n",
m_EFBLayers > 1 ? "g" : "v", m_EFBLayers > 1 ? "g" : "v",
m_EFBLayers > 1 ? "g" : "v", m_EFBLayers > 1 ? "g" : "v"),
m_EFBLayers > 1 ? StringFromFormat("layout(points) in;\n"
"layout(points, max_vertices = %d) out;\n"
"in vec4 v_c[1];\n"
"in float v_z[1];\n"
"out vec4 g_c;\n"
"out float g_z;\n"
"void main()\n"
"{\n"
" for (int j = 0; j < %d; ++j) {\n"
" gl_Layer = j;\n"
" gl_Position = gl_in[0].gl_Position;\n"
" gl_PointSize = %d.0 / 640.0;\n"
" g_c = v_c[0];\n"
" g_z = v_z[0];\n"
" EmitVertex();\n"
" EndPrimitive();\n"
" }\n"
"}\n",
m_EFBLayers, m_EFBLayers, m_targetWidth) :
"");
glGenBuffers(1, &m_EfbPokes_VBO);
glGenVertexArrays(1, &m_EfbPokes_VAO);
glBindBuffer(GL_ARRAY_BUFFER, m_EfbPokes_VBO);
glBindVertexArray(m_EfbPokes_VAO);
glEnableVertexAttribArray(SHADER_POSITION_ATTRIB);
glVertexAttribPointer(SHADER_POSITION_ATTRIB, 2, GL_UNSIGNED_SHORT, 0, sizeof(EfbPokeData),
(void*)offsetof(EfbPokeData, x));
glEnableVertexAttribArray(SHADER_COLOR0_ATTRIB);
glVertexAttribPointer(SHADER_COLOR0_ATTRIB, 4, GL_UNSIGNED_BYTE, 1, sizeof(EfbPokeData),
(void*)offsetof(EfbPokeData, data));
glEnableVertexAttribArray(SHADER_COLOR1_ATTRIB);
glVertexAttribIPointer(SHADER_COLOR1_ATTRIB, 1, GL_INT, sizeof(EfbPokeData),
(void*)offsetof(EfbPokeData, data));
if (GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGL)
glEnable(GL_PROGRAM_POINT_SIZE);
}
FramebufferManager::~FramebufferManager()
{
glBindFramebuffer(GL_FRAMEBUFFER, 0);
GLuint glObj[3];
// Note: OpenGL deletion functions silently ignore parameters of "0".
glDeleteFramebuffers(m_EFBLayers, m_efbFramebuffer.data());
glDeleteFramebuffers(m_EFBLayers, m_resolvedFramebuffer.data());
// Required, as these are static class members
m_efbFramebuffer.clear();
m_resolvedFramebuffer.clear();
glDeleteFramebuffers(1, &m_xfbFramebuffer);
m_xfbFramebuffer = 0;
glObj[0] = m_resolvedColorTexture;
glObj[1] = m_resolvedDepthTexture;
glDeleteTextures(2, glObj);
m_resolvedColorTexture = 0;
m_resolvedDepthTexture = 0;
glObj[0] = m_efbColor;
glObj[1] = m_efbDepth;
glObj[2] = m_efbColorSwap;
glDeleteTextures(3, glObj);
m_efbColor = 0;
m_efbDepth = 0;
m_efbColorSwap = 0;
// reinterpret pixel format
m_pixel_format_shaders[0].Destroy();
m_pixel_format_shaders[1].Destroy();
// EFB pokes
glDeleteBuffers(1, &m_EfbPokes_VBO);
glDeleteVertexArrays(1, &m_EfbPokes_VAO);
m_EfbPokes_VBO = 0;
m_EfbPokes_VAO = 0;
m_EfbPokes.Destroy();
}
GLuint FramebufferManager::GetEFBColorTexture(const EFBRectangle& sourceRc)
{
if (m_msaaSamples <= 1)
{
return m_efbColor;
}
else
{
// Transfer the EFB to a resolved texture. EXT_framebuffer_blit is
// required.
TargetRectangle targetRc = g_renderer->ConvertEFBRectangle(sourceRc);
targetRc.ClampUL(0, 0, m_targetWidth, m_targetHeight);
// Resolve.
for (unsigned int i = 0; i < m_EFBLayers; i++)
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, m_efbFramebuffer[i]);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_resolvedFramebuffer[i]);
glBlitFramebuffer(targetRc.left, targetRc.top, targetRc.right, targetRc.bottom, targetRc.left,
targetRc.top, targetRc.right, targetRc.bottom, GL_COLOR_BUFFER_BIT,
GL_NEAREST);
}
// Return to EFB.
glBindFramebuffer(GL_FRAMEBUFFER, m_efbFramebuffer[0]);
return m_resolvedColorTexture;
}
}
GLuint FramebufferManager::GetEFBDepthTexture(const EFBRectangle& sourceRc)
{
if (m_msaaSamples <= 1)
{
return m_efbDepth;
}
else
{
// Transfer the EFB to a resolved texture.
TargetRectangle targetRc = g_renderer->ConvertEFBRectangle(sourceRc);
targetRc.ClampUL(0, 0, m_targetWidth, m_targetHeight);
// Resolve.
for (unsigned int i = 0; i < m_EFBLayers; i++)
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, m_efbFramebuffer[i]);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_resolvedFramebuffer[i]);
glBlitFramebuffer(targetRc.left, targetRc.top, targetRc.right, targetRc.bottom, targetRc.left,
targetRc.top, targetRc.right, targetRc.bottom, GL_DEPTH_BUFFER_BIT,
GL_NEAREST);
}
// Return to EFB.
glBindFramebuffer(GL_FRAMEBUFFER, m_efbFramebuffer[0]);
return m_resolvedDepthTexture;
}
}
void FramebufferManager::CopyToRealXFB(u32 xfbAddr, u32 fbStride, u32 fbHeight,
const EFBRectangle& sourceRc, float Gamma)
{
u8* xfb_in_ram = Memory::GetPointer(xfbAddr);
if (!xfb_in_ram)
{
WARN_LOG(VIDEO, "Tried to copy to invalid XFB address");
return;
}
TargetRectangle targetRc = g_renderer->ConvertEFBRectangle(sourceRc);
TextureConverter::EncodeToRamYUYV(ResolveAndGetRenderTarget(sourceRc), targetRc, xfb_in_ram,
sourceRc.GetWidth(), fbStride, fbHeight);
}
void FramebufferManager::SetFramebuffer(GLuint fb)
{
glBindFramebuffer(GL_FRAMEBUFFER, fb != 0 ? fb : GetEFBFramebuffer());
}
void FramebufferManager::FramebufferTexture(GLenum target, GLenum attachment, GLenum textarget,
GLuint texture, GLint level)
{
if (textarget == GL_TEXTURE_2D_ARRAY || textarget == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
if (m_EFBLayers > 1)
glFramebufferTexture(target, attachment, texture, level);
else
glFramebufferTextureLayer(target, attachment, texture, level, 0);
}
else
{
glFramebufferTexture2D(target, attachment, textarget, texture, level);
}
}
// Apply AA if enabled
GLuint FramebufferManager::ResolveAndGetRenderTarget(const EFBRectangle& source_rect)
{
return GetEFBColorTexture(source_rect);
}
GLuint FramebufferManager::ResolveAndGetDepthTarget(const EFBRectangle& source_rect)
{
return GetEFBDepthTexture(source_rect);
}
void FramebufferManager::ReinterpretPixelData(unsigned int convtype)
{
g_renderer->ResetAPIState();
OpenGL_BindAttributelessVAO();
GLuint src_texture = 0;
// We aren't allowed to render and sample the same texture in one draw call,
// so we have to create a new texture and overwrite it completely.
// To not allocate one big texture every time, we've allocated two on
// initialization and just swap them here:
src_texture = m_efbColor;
m_efbColor = m_efbColorSwap;
m_efbColorSwap = src_texture;
FramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, m_textureType, m_efbColor, 0);
glViewport(0, 0, m_targetWidth, m_targetHeight);
glActiveTexture(GL_TEXTURE9);
glBindTexture(m_textureType, src_texture);
g_sampler_cache->BindNearestSampler(9);
m_pixel_format_shaders[convtype ? 1 : 0].Bind();
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glBindTexture(m_textureType, 0);
g_renderer->RestoreAPIState();
}
XFBSource::~XFBSource()
{
glDeleteTextures(1, &texture);
}
void XFBSource::DecodeToTexture(u32 xfbAddr, u32 fbWidth, u32 fbHeight)
{
TextureConverter::DecodeToTexture(xfbAddr, fbWidth, fbHeight, texture);
}
void XFBSource::CopyEFB(float Gamma)
{
g_renderer->ResetAPIState();
// Copy EFB data to XFB and restore render target again
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, FramebufferManager::GetXFBFramebuffer());
for (int i = 0; i < m_layers; i++)
{
// Bind EFB and texture layer
glBindFramebuffer(GL_READ_FRAMEBUFFER, FramebufferManager::GetEFBFramebuffer(i));
glFramebufferTextureLayer(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, texture, 0, i);
glBlitFramebuffer(0, 0, texWidth, texHeight, 0, 0, texWidth, texHeight, GL_COLOR_BUFFER_BIT,
GL_NEAREST);
}
// Return to EFB.
FramebufferManager::SetFramebuffer(0);
g_renderer->RestoreAPIState();
}
std::unique_ptr<XFBSourceBase> FramebufferManager::CreateXFBSource(unsigned int target_width,
unsigned int target_height,
unsigned int layers)
{
GLuint texture;
glGenTextures(1, &texture);
glActiveTexture(GL_TEXTURE9);
glBindTexture(GL_TEXTURE_2D_ARRAY, texture);
glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAX_LEVEL, 0);
glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, target_width, target_height, layers, 0, GL_RGBA,
GL_UNSIGNED_BYTE, nullptr);
return std::make_unique<XFBSource>(texture, layers);
}
std::pair<u32, u32> FramebufferManager::GetTargetSize() const
{
return std::make_pair(m_targetWidth, m_targetHeight);
}
void FramebufferManager::PokeEFB(EFBAccessType type, const EfbPokeData* points, size_t num_points)
{
g_renderer->ResetAPIState();
if (type == EFBAccessType::PokeZ)
{
glDepthMask(GL_TRUE);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_ALWAYS);
}
glBindVertexArray(m_EfbPokes_VAO);
glBindBuffer(GL_ARRAY_BUFFER, m_EfbPokes_VBO);
glBufferData(GL_ARRAY_BUFFER, sizeof(EfbPokeData) * num_points, points, GL_STREAM_DRAW);
m_EfbPokes.Bind();
glViewport(0, 0, m_targetWidth, m_targetHeight);
glDrawArrays(GL_POINTS, 0, (GLsizei)num_points);
g_renderer->RestoreAPIState();
// TODO: Could just update the EFB cache with the new value
ClearEFBCache();
}
} // namespace OGL
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