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Some cleanup, extracted XFB convert code into VideoCommon, added non-activated support to gl plugin. + a minor bugfix with no effects seen so far in gl plugin :P

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@209 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
2008-08-14 21:34:39 +00:00
parent 1aedd4891c
commit b4d7ce0197
15 changed files with 196 additions and 212 deletions
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72
Source/Plugins/Plugin_VideoOGL/Src/XFB.cpp
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@ -15,48 +15,56 @@
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// Preliminary non-working code.
#include "Common.h"
#include "Globals.h"
#include "Render.h"
#include "TextureMngr.h"
#include "XFBConvert.h"
// __________________________________________________________________________________________________
// Video_UpdateXFB
//
enum {
XFB_WIDTH = 640,
XFB_HEIGHT = 480,
};
// TODO(ector): Write protect XFB. As soon as something pokes there,
// switch to a mode where we actually display the XFB on top of the 3D.
// If no writes have happened within 5 frames, revert to normal mode.
static GLuint xfb_texture;
static u8 *xfb_buffer;
// Also, write a crazy SSE2 optimized version of this :P
int bound(int i)
void XFB_Init()
{
return (i>255)?255:((i<0)?0:i);
xfb_buffer = new u8[XFB_WIDTH * XFB_HEIGHT * 4];
memset(xfb_buffer, 0, XFB_WIDTH * XFB_HEIGHT * 4);
glGenTextures(1, &xfb_texture);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, xfb_texture);
glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, 4, XFB_WIDTH, XFB_HEIGHT, 0, GL_BGRA, GL_UNSIGNED_BYTE, xfb_buffer);
}
void yuv2rgb(int y, int u, int v, int &r, int &g, int &b)
void XFB_Draw(u8 *xfb_in_ram)
{
b = bound((76283*(y - 16) + 132252*(u - 128))>>16);
g = bound((76283*(y - 16) - 53281 *(v - 128) - 25624*(u - 128))>>16); //last one u?
r = bound((76283*(y - 16) + 104595*(v - 128))>>16);
Renderer::ResetGLState();
ConvertXFB((u32 *)xfb_buffer, xfb_in_ram, XFB_WIDTH, XFB_HEIGHT);
glBindTexture(GL_TEXTURE_RECTANGLE_NV, xfb_texture);
glTexImage2D(GL_TEXTURE_RECTANGLE_NV, 0, 4, XFB_WIDTH, XFB_HEIGHT, 0, GL_BGRA, GL_UNSIGNED_BYTE, xfb_buffer);
TextureMngr::EnableTexRECT(0);
for (int i = 1; i < 8; ++i)
TextureMngr::DisableStage(i);
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(-1,-1);
glTexCoord2f(0, XFB_WIDTH); glVertex2f(-1,1);
glTexCoord2f(XFB_WIDTH, XFB_HEIGHT); glVertex2f(1,1);
glTexCoord2f(XFB_WIDTH, 0); glVertex2f(1,-1);
glEnd();
Renderer::RestoreGLState();
}
void ConvertXFB(int *dst, const u8* _pXFB, int width, int height)
void XFB_Shutdown()
{
const unsigned char *src = _pXFB;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
int Y1 = *src++;
int U = *src++;
int Y2 = *src++;
int V = *src++;
int r,g,b;
yuv2rgb(Y1, U, V, r, g, b);
*dst++ = 0xFF000000 | (r<<16) | (g<<8) | (b);
yuv2rgb(Y2, U, V, r, g, b);
*dst++ = 0xFF000000 | (r<<16) | (g<<8) | (b);
}
}
glDeleteTextures(1, &xfb_texture);
xfb_texture = 0;
delete [] xfb_buffer;
xfb_buffer = 0;
}