226 lines
6.6 KiB
C++
226 lines
6.6 KiB
C++
// Copyright (C) 2003 Dolphin Project.
|
|
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, version 2.0.
|
|
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official SVN repository and contact information can be found at
|
|
// http://code.google.com/p/dolphin-emu/
|
|
|
|
#include "BPFunctions.h"
|
|
#include "Common.h"
|
|
#include "RenderBase.h"
|
|
#include "TextureCacheBase.h"
|
|
#include "VertexManagerBase.h"
|
|
#include "VertexShaderManager.h"
|
|
#include "VideoConfig.h"
|
|
|
|
bool textureChanged[8];
|
|
const bool renderFog = false;
|
|
|
|
namespace BPFunctions
|
|
{
|
|
// ----------------------------------------------
|
|
// State translation lookup tables
|
|
// Reference: Yet Another Gamecube Documentation
|
|
// ----------------------------------------------
|
|
|
|
|
|
void FlushPipeline()
|
|
{
|
|
VertexManager::Flush();
|
|
}
|
|
|
|
void SetGenerationMode(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetGenerationMode();
|
|
}
|
|
|
|
void SetScissor(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetScissorRect();
|
|
}
|
|
|
|
void SetLineWidth(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetLineWidth();
|
|
}
|
|
|
|
void SetDepthMode(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetDepthMode();
|
|
}
|
|
|
|
void SetBlendMode(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetBlendMode(false);
|
|
}
|
|
void SetDitherMode(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetDitherMode();
|
|
}
|
|
void SetLogicOpMode(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetLogicOpMode();
|
|
}
|
|
|
|
void SetColorMask(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetColorMask();
|
|
}
|
|
|
|
void CopyEFB(const BPCmd &bp, const EFBRectangle &rc, const u32 &address, const bool &fromZBuffer, const bool &isIntensityFmt, const u32 ©fmt, const int &scaleByHalf)
|
|
{
|
|
// bpmem.zcontrol.pixel_format to PIXELFMT_Z24 is when the game wants to copy from ZBuffer (Zbuffer uses 24-bit Format)
|
|
if (g_ActiveConfig.bEFBCopyEnable)
|
|
{
|
|
TextureCache::CopyRenderTargetToTexture(address, fromZBuffer, isIntensityFmt, copyfmt, !!scaleByHalf, rc);
|
|
}
|
|
}
|
|
|
|
/* Explanation of the magic behind ClearScreen:
|
|
There's numerous possible formats for the pixel data in the EFB.
|
|
However, in the HW accelerated plugins we're always using RGBA8
|
|
for the EFB format, which causes some problems:
|
|
- We're using an alpha channel although the game doesn't (1)
|
|
- If the actual EFB format is PIXELFMT_RGBA6_Z24, we are using more bits per channel than the native HW (2)
|
|
- When doing a z copy (EFB copy target format GX_TF_Z24X8 (and possibly others?)), the native HW assumes that the EFB format is RGB8 when clearing.
|
|
Thus the RGBA6 values get overwritten with plain RGB8 data without any kind of conversion. (3)
|
|
- When changing EFB formats, the EFB contents will NOT get converted to the new format;
|
|
this currently isn't implemented in any HW accelerated plugin and might cause issues. (4)
|
|
- Possible other oddities should be noted here as well
|
|
|
|
To properly emulate the above points, we're doing the following:
|
|
(1)
|
|
- disable alpha channel writing of any kind of rendering if the actual EFB format doesn't use an alpha channel
|
|
- NOTE: Always make sure that the EFB has been cleared to an alpha value of 0xFF in this case!
|
|
- Same for color channels, these need to be cleared to 0x00 though.
|
|
(2)
|
|
- just scale down the RGBA8 color to RGBA6 and upscale it to RGBA8 again
|
|
(3)
|
|
- more tricky, doing some bit magic here to properly reinterpret the data
|
|
(4) TODO
|
|
- generally delay ClearScreen calls as long as possible (until any other EFB access)
|
|
- when the pixel format changes:
|
|
- call ClearScreen if it's still being delayed, reinterpret the color for the new format though
|
|
- otherwise convert EFB contents to the new pixel format
|
|
*/
|
|
void ClearScreen(const BPCmd &bp, const EFBRectangle &rc)
|
|
{
|
|
UPE_Copy PE_copy = bpmem.triggerEFBCopy;
|
|
bool colorEnable = bpmem.blendmode.colorupdate;
|
|
bool alphaEnable = bpmem.blendmode.alphaupdate;
|
|
bool zEnable = bpmem.zmode.updateenable;
|
|
|
|
// (1): Disable unused color channels
|
|
switch (bpmem.zcontrol.pixel_format)
|
|
{
|
|
case PIXELFMT_RGBA6_Z24:
|
|
if (colorEnable && PE_copy.tp_realFormat() == GX_TF_Z24X8) // (3): alpha update forced
|
|
alphaEnable = true;
|
|
break;
|
|
|
|
case PIXELFMT_RGB8_Z24:
|
|
case PIXELFMT_RGB565_Z16:
|
|
alphaEnable = false;
|
|
break;
|
|
|
|
case PIXELFMT_Z24:
|
|
alphaEnable = colorEnable = false;
|
|
break;
|
|
|
|
default:
|
|
// TODO?
|
|
break;
|
|
}
|
|
|
|
if (colorEnable || alphaEnable || zEnable)
|
|
{
|
|
u32 color = (bpmem.clearcolorAR << 16) | bpmem.clearcolorGB;
|
|
u32 z = bpmem.clearZValue;
|
|
if (bpmem.zcontrol.pixel_format == PIXELFMT_RGBA6_Z24)
|
|
{
|
|
// TODO: Not sure whether there's more formats to check for here - maybe GX_TF_Z8 and GX_TF_Z16?
|
|
if (PE_copy.tp_realFormat() == GX_TF_Z24X8) // (3): Reinterpret RGB8 color as RGBA6
|
|
{
|
|
// NOTE: color is passed in ARGB order, but EFB uses RGBA
|
|
u32 srcr8 = (color & 0xFF0000) >> 16;
|
|
u32 srcg8 = (color & 0xFF00) >> 8;
|
|
u32 srcb8 = color & 0xFF;
|
|
u32 dstr6 = srcr8 >> 2;
|
|
u32 dstg6 = ((srcr8 & 0x3) << 4) | (srcg8 >> 4);
|
|
u32 dstb6 = ((srcg8 & 0xF) << 2) | (srcb8 >> 6);
|
|
u32 dsta6 = srcb8 & 0x3F;
|
|
u32 dstr8 = (dstr6 << 2) | (dstr6 >> 4);
|
|
u32 dstg8 = (dstg6 << 2) | (dstg6 >> 4);
|
|
u32 dstb8 = (dstb6 << 2) | (dstb6 >> 4);
|
|
u32 dsta8 = (dsta6 << 2) | (dsta6 >> 4);
|
|
color = (dsta8 << 24) | (dstr8 << 16) | (dstg8 << 8) | dstb8;
|
|
}
|
|
else // (2): convert RGBA8 color to RGBA6
|
|
{
|
|
color &= 0xFCFCFCFC;
|
|
color |= (color >> 6) & 0x03030303;
|
|
}
|
|
}
|
|
else if (bpmem.zcontrol.pixel_format == PIXELFMT_RGB565_Z16)
|
|
{
|
|
z >>= 8;
|
|
u32 dstr5 = (color & 0xFF0000) >> 19;
|
|
u32 dstg6 = (color & 0xFF00) >> 10;
|
|
u32 dstb5 = (color & 0xFF) >> 3;
|
|
u32 dstr8 = (dstr5 << 3) | (dstr5 >> 2);
|
|
u32 dstg8 = (dstg6 << 2) | (dstg6 >> 4);
|
|
u32 dstb8 = (dstb5 << 3) | (dstb5 >> 2);
|
|
color = (dstr8 << 16) | (dstg8 << 8) | dstb8;
|
|
}
|
|
g_renderer->ClearScreen(rc, colorEnable, alphaEnable, zEnable, color, z);
|
|
}
|
|
}
|
|
|
|
void RestoreRenderState(const BPCmd &bp)
|
|
{
|
|
g_renderer->RestoreAPIState();
|
|
}
|
|
|
|
bool GetConfig(const int &type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case CONFIG_ISWII:
|
|
return g_VideoInitialize.bWii;
|
|
case CONFIG_DISABLEFOG:
|
|
return g_ActiveConfig.bDisableFog;
|
|
case CONFIG_SHOWEFBREGIONS:
|
|
return false;
|
|
default:
|
|
PanicAlert("GetConfig Error: Unknown Config Type!");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
u8 *GetPointer(const u32 &address)
|
|
{
|
|
return g_VideoInitialize.pGetMemoryPointer(address);
|
|
}
|
|
|
|
void SetTextureMode(const BPCmd &bp)
|
|
{
|
|
g_renderer->SetSamplerState(bp.address & 3, (bp.address & 0xE0) == 0xA0);
|
|
}
|
|
|
|
void SetInterlacingMode(const BPCmd &bp)
|
|
{
|
|
// TODO
|
|
}
|
|
|
|
};
|