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Exzap 2022-08-22 22:21:23 +02:00
parent e3db07a16a
commit d60742f52b
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131
src/Cafe/HW/Latte/Renderer/OpenGL/TextureReadbackGL.cpp Normal file
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#include "Cafe/HW/Latte/Renderer/Renderer.h"
#include "Cafe/HW/Latte/Renderer/OpenGL/OpenGLTextureReadback.h"
#include "Cafe/HW/Latte/Renderer/OpenGL/LatteTextureViewGL.h"
LatteTextureReadbackInfoGL::LatteTextureReadbackInfoGL(LatteTextureView* textureView)
: LatteTextureReadbackInfo(textureView)
{
LatteTexture* baseTexture = textureView->baseTexture;
// handle format
if (textureView->format == Latte::E_GX2SURFFMT::R8_G8_B8_A8_UNORM)
{
m_image_size = baseTexture->width*baseTexture->height * 4;
m_texFormatGL = GL_RGBA;
m_texDataTypeGL = GL_UNSIGNED_BYTE;
}
else if (textureView->format == Latte::E_GX2SURFFMT::R8_G8_B8_A8_SRGB)
{
m_image_size = baseTexture->width*baseTexture->height * 4;
m_texFormatGL = GL_RGBA;
m_texDataTypeGL = GL_UNSIGNED_BYTE;
}
else if (textureView->format == Latte::E_GX2SURFFMT::R32_G32_B32_A32_FLOAT)
{
m_image_size = baseTexture->width*baseTexture->height * 16;
m_texFormatGL = GL_RGBA;
m_texDataTypeGL = GL_FLOAT;
}
else if (textureView->format == Latte::E_GX2SURFFMT::R32_FLOAT)
{
if (baseTexture->isDepth)
{
m_image_size = baseTexture->width*baseTexture->height * 4;
m_texFormatGL = GL_DEPTH_COMPONENT;
m_texDataTypeGL = GL_FLOAT;
}
else
{
m_image_size = baseTexture->width*baseTexture->height * 4;
m_texFormatGL = GL_RED;
m_texDataTypeGL = GL_FLOAT;
}
}
else if (textureView->format == Latte::E_GX2SURFFMT::R16_UNORM)
{
if (baseTexture->isDepth)
{
m_image_size = baseTexture->width*baseTexture->height * 2;
m_texFormatGL = GL_DEPTH_COMPONENT;
m_texDataTypeGL = GL_UNSIGNED_SHORT;
cemu_assert_unimplemented();
}
else
{
m_image_size = baseTexture->width*baseTexture->height * 2;
m_texFormatGL = GL_RED;
m_texDataTypeGL = GL_UNSIGNED_SHORT;
}
}
else if (textureView->format == Latte::E_GX2SURFFMT::R16_G16_B16_A16_FLOAT)
{
m_image_size = baseTexture->width*baseTexture->height * 8;
m_texFormatGL = GL_RGBA;
m_texDataTypeGL = GL_HALF_FLOAT;
}
else if (textureView->format == Latte::E_GX2SURFFMT::R8_G8_UNORM)
{
m_image_size = baseTexture->width*baseTexture->height * 2;
m_texFormatGL = GL_RG;
m_texDataTypeGL = GL_UNSIGNED_BYTE;
}
else if (textureView->format == Latte::E_GX2SURFFMT::R16_G16_B16_A16_UNORM)
{
m_image_size = baseTexture->width*baseTexture->height * 8;
m_texFormatGL = GL_RGBA;
m_texDataTypeGL = GL_UNSIGNED_SHORT;
}
else
{
forceLogDebug_printf("Unsupported texture readback format %04x\n", (uint32)textureView->format);
return;
}
}
LatteTextureReadbackInfoGL::~LatteTextureReadbackInfoGL()
{
if(imageCopyFinSync != 0)
glDeleteSync(imageCopyFinSync);
if(texImageBufferGL)
glDeleteBuffers(1, &texImageBufferGL);
}
void LatteTextureReadbackInfoGL::StartTransfer()
{
cemu_assert(m_textureView);
g_renderer->texture_bindAndActivate(m_textureView, 0);
// create unsynchronized buffer
glGenBuffers(1, &texImageBufferGL);
glBindBuffer(GL_PIXEL_PACK_BUFFER, texImageBufferGL);
glBufferData(GL_PIXEL_PACK_BUFFER, m_image_size, NULL, GL_DYNAMIC_READ);
// request texture read into buffer
glGetTexImage(((LatteTextureViewGL*)m_textureView)->glTexTarget, 0, m_texFormatGL, m_texDataTypeGL, NULL);
glFlush();
// create fence sync (so we can check if the image copy operation finished)
imageCopyFinSync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
m_textureView = nullptr;
}
bool LatteTextureReadbackInfoGL::IsFinished()
{
GLenum status = glClientWaitSync(imageCopyFinSync, 0, 0);
if (status == GL_TIMEOUT_EXPIRED)
return false;
else if (status == GL_ALREADY_SIGNALED || status == GL_SIGNALED)
return true;
else
throw std::runtime_error("_updateFinishedTransfers(): Error during readback sync check\n");
}
uint8* LatteTextureReadbackInfoGL::GetData()
{
glBindBuffer(GL_PIXEL_PACK_BUFFER, texImageBufferGL);
return (uint8*)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
}
void LatteTextureReadbackInfoGL::ReleaseData()
{
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
}