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Opcode decoding: handle missing opcodes 0x88 etc. 

Hardware testing shows that they do the same thing as the 0x80 family of
opcodes: they draw quads.
This commit is contained in:
magumagu 2014-05-08 16:53:18 -07:00
parent 2983ae2823
commit 39d439fc48
5 changed files with 26 additions and 16 deletions
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5
Source/Core/VideoBackends/Software/OpcodeDecoder.h
View File

@ -27,8 +27,11 @@ namespace OpcodeDecoder
#define GX_PRIMITIVE_SHIFT 3
#define GX_VAT_MASK 0x07
//these are defined 1/8th of their real values and without their top bit
// These values are the values extracted using GX_PRIMITIVE_MASK
// and GX_PRIMITIVE_SHIFT.
// GX_DRAW_QUADS_2 behaves the same way as GX_DRAW_QUADS.
#define GX_DRAW_QUADS 0x0 //0x80
#define GX_DRAW_QUADS_2 0x1 //0x88
#define GX_DRAW_TRIANGLES 0x2 //0x90
#define GX_DRAW_TRIANGLE_STRIP 0x3 //0x98
#define GX_DRAW_TRIANGLE_FAN 0x4 //0xA0

1
Source/Core/VideoBackends/Software/SetupUnit.cpp
View File

@ -25,6 +25,7 @@ void SetupUnit::SetupVertex()
switch (m_PrimType)
{
case GX_DRAW_QUADS:
case GX_DRAW_QUADS_2:
SetupQuad();
break;
case GX_DRAW_TRIANGLES:

26
Source/Core/VideoCommon/IndexGenerator.cpp
View File

@ -6,6 +6,7 @@
#include "Common/Common.h"
#include "VideoCommon/IndexGenerator.h"
#include "VideoCommon/OpcodeDecoding.h"
#include "VideoCommon/VideoConfig.h"
//Init
@ -21,22 +22,23 @@ void IndexGenerator::Init()
{
if (g_Config.backend_info.bSupportsPrimitiveRestart)
{
primitive_table[0] = IndexGenerator::AddQuads<true>;
primitive_table[2] = IndexGenerator::AddList<true>;
primitive_table[3] = IndexGenerator::AddStrip<true>;
primitive_table[4] = IndexGenerator::AddFan<true>;
primitive_table[GX_DRAW_QUADS] = IndexGenerator::AddQuads<true>;
primitive_table[GX_DRAW_QUADS_2] = IndexGenerator::AddQuads<true>;
primitive_table[GX_DRAW_TRIANGLES] = IndexGenerator::AddList<true>;
primitive_table[GX_DRAW_TRIANGLE_STRIP] = IndexGenerator::AddStrip<true>;
primitive_table[GX_DRAW_TRIANGLE_FAN] = IndexGenerator::AddFan<true>;
}
else
{
primitive_table[0] = IndexGenerator::AddQuads<false>;
primitive_table[2] = IndexGenerator::AddList<false>;
primitive_table[3] = IndexGenerator::AddStrip<false>;
primitive_table[4] = IndexGenerator::AddFan<false>;
primitive_table[GX_DRAW_QUADS] = IndexGenerator::AddQuads<false>;
primitive_table[GX_DRAW_QUADS_2] = IndexGenerator::AddQuads<false>;
primitive_table[GX_DRAW_TRIANGLES] = IndexGenerator::AddList<false>;
primitive_table[GX_DRAW_TRIANGLE_STRIP] = IndexGenerator::AddStrip<false>;
primitive_table[GX_DRAW_TRIANGLE_FAN] = IndexGenerator::AddFan<false>;
}
primitive_table[1] = nullptr;
primitive_table[5] = &IndexGenerator::AddLineList;
primitive_table[6] = &IndexGenerator::AddLineStrip;
primitive_table[7] = &IndexGenerator::AddPoints;
primitive_table[GX_DRAW_LINES] = &IndexGenerator::AddLineList;
primitive_table[GX_DRAW_LINE_STRIP] = &IndexGenerator::AddLineStrip;
primitive_table[GX_DRAW_POINTS] = &IndexGenerator::AddPoints;
}
void IndexGenerator::Start(u16* Indexptr)

6
Source/Core/VideoCommon/OpcodeDecoding.h
View File

@ -22,15 +22,17 @@
#define GX_PRIMITIVE_SHIFT 3
#define GX_VAT_MASK 0x07
//these are defined 1/8th of their real values and without their top bit
// These values are the values extracted using GX_PRIMITIVE_MASK
// and GX_PRIMITIVE_SHIFT.
// GX_DRAW_QUADS_2 behaves the same way as GX_DRAW_QUADS.
#define GX_DRAW_QUADS 0x0 // 0x80
#define GX_DRAW_QUADS_2 0x1 // 0x88
#define GX_DRAW_TRIANGLES 0x2 // 0x90
#define GX_DRAW_TRIANGLE_STRIP 0x3 // 0x98
#define GX_DRAW_TRIANGLE_FAN 0x4 // 0xA0
#define GX_DRAW_LINES 0x5 // 0xA8
#define GX_DRAW_LINE_STRIP 0x6 // 0xB0
#define GX_DRAW_POINTS 0x7 // 0xB8
#define GX_DRAW_NONE 0x1; // This is a fake value to used in the backends
extern bool g_bRecordFifoData;

4
Source/Core/VideoCommon/VertexManagerBase.cpp
View File

@ -28,7 +28,7 @@ bool VertexManager::IsFlushed;
static const PrimitiveType primitive_from_gx[8] = {
PRIMITIVE_TRIANGLES, // GX_DRAW_QUADS
PRIMITIVE_TRIANGLES, // GX_DRAW_NONE
PRIMITIVE_TRIANGLES, // GX_DRAW_QUADS_2
PRIMITIVE_TRIANGLES, // GX_DRAW_TRIANGLES
PRIMITIVE_TRIANGLES, // GX_DRAW_TRIANGLE_STRIP
PRIMITIVE_TRIANGLES, // GX_DRAW_TRIANGLE_FAN
@ -93,6 +93,7 @@ u32 VertexManager::GetRemainingIndices(int primitive)
switch (primitive)
{
case GX_DRAW_QUADS:
case GX_DRAW_QUADS_2:
return index_len / 5 * 4;
case GX_DRAW_TRIANGLES:
return index_len / 4 * 3;
@ -118,6 +119,7 @@ u32 VertexManager::GetRemainingIndices(int primitive)
switch (primitive)
{
case GX_DRAW_QUADS:
case GX_DRAW_QUADS_2:
return index_len / 6 * 4;
case GX_DRAW_TRIANGLES:
return index_len;