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VideoSoftware: Added Real XFB support.

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Massivly increases the accuracy of VideoSoftware, if it's going to be slow, it
might as well be accurate.

 * Fixes flickering issues in games which double render to get Hardware AA, like the Peach's Castle tech demo.
 * Rouge Squadren 2's Cantina Intro doesn't flicker anymore, but it duplicates the top half of the screen onto the bottom.
 * Any games which need RealXFB support should now work in Video Software
This commit is contained in:
Scott Mansell
2013-08-20 23:51:39 +12:00
parent fa8a4cdbb5
commit d52e241cdf
6 changed files with 250 additions and 47 deletions
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57
Source/Plugins/Plugin_VideoSoftware/Src/SWRenderer.cpp
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@ -5,10 +5,12 @@
#include "Common.h"
#include <math.h>
#include "Core.h"
#include "../../Plugin_VideoOGL/Src/GLUtil.h"
#include "RasterFont.h"
#include "SWRenderer.h"
#include "SWStatistics.h"
#include "SWCommandProcessor.h"
#include "OnScreenDisplay.h"
@ -18,6 +20,9 @@ static GLint attr_pos = -1, attr_tex = -1;
static GLint uni_tex = -1;
static GLuint program;
static u8 s_xfbColorTexture[2][EFB_WIDTH*EFB_HEIGHT*4];
static int s_currentColorTexture = 0;
// Rasterfont isn't compatible with GLES
// degasus: I think it does, but I can't test it
#ifndef USE_GLES
@ -26,6 +31,7 @@ RasterFont* s_pfont = NULL;
void SWRenderer::Init()
{
GLInterface->SetBackBufferDimensions(EFB_WIDTH, EFB_HEIGHT);
}
void SWRenderer::Shutdown()
@ -68,6 +74,9 @@ void CreateShaders()
void SWRenderer::Prepare()
{
memset(s_xfbColorTexture, 0, sizeof(s_xfbColorTexture));
s_currentColorTexture = 0;
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // 4-byte pixel alignment
glGenTextures(1, &s_RenderTarget);
@ -162,11 +171,59 @@ void DrawButton(GLuint tex, float *coords)
glBindTexture(TEX2D, 0);
}
#endif
void SWRenderer::UpdateColorTexture(EfbInterface::yuv422_packed *xfb)
{
u32 offset = 0;
u8 *TexturePointer = s_xfbColorTexture[!s_currentColorTexture];
for (u16 y = 0; y < EFB_HEIGHT; y++)
{
for (u16 x = 0; x < EFB_WIDTH; x+=2)
{
// We do this one color sample (aka 2 RGB pixles) at a time
int Y1 = xfb[x].Y - 16;
int Y2 = xfb[x+1].Y - 16;
int U = int(xfb[x].UV) - 128;
int V = int(xfb[x+1].UV) - 128;
// We do the inverse BT.601 conversion for YCbCr to RGB
// http://www.equasys.de/colorconversion.html#YCbCr-RGBColorFormatConversion
TexturePointer[offset++] = min(255.0f, max(0.0f, 1.164f * Y1 + 1.596f * V));
TexturePointer[offset++] = min(255.0f, max(0.0f, 1.164f * Y1 - 0.392f * U - 0.813f * V));
TexturePointer[offset++] = min(255.0f, max(0.0f, 1.164f * Y1 + 2.017f * U ));
TexturePointer[offset++] = 255;
TexturePointer[offset++] = min(255.0f, max(0.0f, 1.164f * Y2 + 1.596f * V));
TexturePointer[offset++] = min(255.0f, max(0.0f, 1.164f * Y2 - 0.392f * U - 0.813f * V));
TexturePointer[offset++] = min(255.0f, max(0.0f, 1.164f * Y2 + 2.017f * U ));
TexturePointer[offset++] = 255;
}
xfb += EFB_WIDTH;
}
s_currentColorTexture = !s_currentColorTexture;
}
// Called on the GPU thread
void SWRenderer::Swap(u32 fbWidth, u32 fbHeight)
{
GLInterface->Update(); // just updates the render window position and the backbuffer size
if (!g_SWVideoConfig.bHwRasterizer)
SWRenderer::DrawTexture(s_xfbColorTexture[s_currentColorTexture], fbWidth, fbHeight);
swstats.frameCount++;
SWRenderer::SwapBuffer();
Core::Callback_VideoCopiedToXFB(true); // FIXME: should this function be called FrameRendered?
}
void SWRenderer::DrawTexture(u8 *texture, int width, int height)
{
// FIXME: This should add black bars when the game has set the VI to render less than the full xfb.
GLsizei glWidth = (GLsizei)GLInterface->GetBackBufferWidth();
GLsizei glHeight = (GLsizei)GLInterface->GetBackBufferHeight();
// Update GLViewPort
glViewport(0, 0, glWidth, glHeight);
glScissor(0, 0, glWidth, glHeight);