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RSX: asynchronous glReadPixels with PBO for writing color/depth buffers

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This commit is contained in:
raven02 2014-06-22 16:01:59 +08:00
parent f5813bf2cd
commit a99061127f
1 changed files with 63 additions and 25 deletions
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66
rpcs3/Emu/GS/GL/GLGSRender.cpp
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@ -17,6 +17,9 @@
gcmBuffer gcmBuffers[8];
GLuint g_flip_tex;
GLuint g_depth_tex;
GLuint g_color_pbo[4];
GLuint g_depth_pbo;
int last_width = 0, last_height = 0, last_depth_format = 0;
@ -452,14 +455,21 @@ void GLGSRender::WriteDepthBuffer()
return;
}
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, &Memory[address]);
checkForGlError("glReadPixels");
glBindBuffer(GL_PIXEL_PACK_BUFFER, g_depth_pbo);
glBufferData(GL_PIXEL_PACK_BUFFER, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4, 0, GL_DYNAMIC_READ);
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, 0);
checkForGlError("WriteDepthBuffer(): glReadPixels(GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE)");
GLubyte *packed = (GLubyte *)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
memcpy(&Memory[address], packed, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, g_depth_tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, RSXThread::m_buffer_width, RSXThread::m_buffer_height, 0, GL_ALPHA, GL_UNSIGNED_BYTE, &Memory[address]);
checkForGlError("glTexImage2D");
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, &Memory[address]);
checkForGlError("glGetTexImage");
}
void GLGSRender::WriteColourBufferA()
@ -480,9 +490,15 @@ void GLGSRender::WriteColourBufferA()
}
glReadBuffer(GL_COLOR_ATTACHMENT0);
checkForGlError("glReadBuffer(GL_COLOR_ATTACHMENT0)");
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, &Memory[address]);
checkForGlError("glReadPixels(GL_RGBA, GL_UNSIGNED_INT_8_8_8_8)");
checkForGlError("WriteColourBufferA(): glReadBuffer(GL_COLOR_ATTACHMENT0)");
glBindBuffer(GL_PIXEL_PACK_BUFFER, g_color_pbo[0]);
glBufferData(GL_PIXEL_PACK_BUFFER, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4, 0, GL_STREAM_READ);
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, 0);
checkForGlError("WriteColourBufferA(): glReadPixels(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8)");
GLubyte *packed = (GLubyte *)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
memcpy(&Memory[address], packed, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
}
void GLGSRender::WriteColourBufferB()
@ -503,9 +519,16 @@ void GLGSRender::WriteColourBufferB()
}
glReadBuffer(GL_COLOR_ATTACHMENT1);
checkForGlError("glReadBuffer(GL_COLOR_ATTACHMENT1)");
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, &Memory[address]);
checkForGlError("glReadPixels(GL_RGBA, GL_UNSIGNED_INT_8_8_8_8)");
checkForGlError("WriteColourBufferB(): glReadBuffer(GL_COLOR_ATTACHMENT1)");
glBindBuffer(GL_PIXEL_PACK_BUFFER, g_color_pbo[1]);
glBufferData(GL_PIXEL_PACK_BUFFER, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4, 0, GL_STREAM_READ);
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, 0);
checkForGlError("WriteColourBufferB(): glReadPixels(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8)");
GLubyte *packed = (GLubyte *)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
memcpy(&Memory[address], packed, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
}
void GLGSRender::WriteColourBufferC()
@ -526,9 +549,15 @@ void GLGSRender::WriteColourBufferC()
}
glReadBuffer(GL_COLOR_ATTACHMENT2);
checkForGlError("glReadBuffer(GL_COLOR_ATTACHMENT2)");
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, &Memory[address]);
checkForGlError("glReadPixels(GL_RGBA, GL_UNSIGNED_INT_8_8_8_8)");
checkForGlError("WriteColourBufferC(): glReadBuffer(GL_COLOR_ATTACHMENT2)");
glBindBuffer(GL_PIXEL_PACK_BUFFER, g_color_pbo[2]);
glBufferData(GL_PIXEL_PACK_BUFFER, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4, 0, GL_STREAM_READ);
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, 0);
checkForGlError("WriteColourBufferC(): glReadPixels(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8)");
GLubyte *packed = (GLubyte *)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
memcpy(&Memory[address], packed, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
}
void GLGSRender::WriteColourBufferD()
@ -549,9 +578,16 @@ void GLGSRender::WriteColourBufferD()
}
glReadBuffer(GL_COLOR_ATTACHMENT3);
checkForGlError("glReadBuffer(GL_COLOR_ATTACHMENT3)");
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, &Memory[address]);
checkForGlError("glReadPixels(GL_RGBA, GL_UNSIGNED_INT_8_8_8_8)");
checkForGlError("WriteColourBufferD(): glReadBuffer(GL_COLOR_ATTACHMENT3)");
glBindBuffer(GL_PIXEL_PACK_BUFFER, g_color_pbo[3]);
glBufferData(GL_PIXEL_PACK_BUFFER, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4, 0, GL_STREAM_READ);
glReadPixels(0, 0, RSXThread::m_buffer_width, RSXThread::m_buffer_height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, 0);
checkForGlError("WriteColourBufferD(): glReadPixels(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8)");
GLubyte *packed = (GLubyte *)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
memcpy(&Memory[address], packed, RSXThread::m_buffer_width * RSXThread::m_buffer_height * 4);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
}
void GLGSRender::WriteColorBuffers()
@ -620,6 +656,8 @@ void GLGSRender::OnInitThread()
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
glGenTextures(1, &g_depth_tex);
glGenTextures(1, &g_flip_tex);
glGenBuffers(4, g_color_pbo);
glGenBuffers(1, &g_depth_pbo);
#ifdef _WIN32
glSwapInterval(Ini.GSVSyncEnable.GetValue() ? 1 : 0);