From 8c2b4b4813bc163ca8add5baaa5f692b85d347f6 Mon Sep 17 00:00:00 2001
From: Arisotura <thetotalworm@gmail.com>
Date: Wed, 1 May 2019 23:35:48 +0200
Subject: very evil shit
---
src/GPU3D_OpenGL43.cpp | 158 ++++++++++++++++++++++++++++++++-----------------
1 file changed, 103 insertions(+), 55 deletions(-)
diff --git a/src/GPU3D_OpenGL43.cpp b/src/GPU3D_OpenGL43.cpp
index 0197546..b28afff 100644
--- a/src/GPU3D_OpenGL43.cpp
+++ b/src/GPU3D_OpenGL43.cpp
@@ -365,22 +365,52 @@ void main()
)";
-const char* kRenderFS_Z = R"(
+const char* kRenderFS_ZO = R"(
void main()
{
- oColor = FinalColor();
+ vec4 col = FinalColor();
+ if (col.a < 31.0/255.0) discard;
+
+ oColor = col;
}
)";
-const char* kRenderFS_W = R"(
+const char* kRenderFS_WO = R"(
smooth in float fZ;
void main()
{
- oColor = FinalColor();
+ vec4 col = FinalColor();
+ if (col.a < 31.0/255.0) discard;
+ oColor = col;
+ gl_FragDepth = fZ;
+}
+)";
+
+const char* kRenderFS_ZT = R"(
+
+void main()
+{
+ vec4 col = FinalColor();
+ if (col.a > 30.0/255.0) discard;
+
+ oColor = col;
+}
+)";
+
+const char* kRenderFS_WT = R"(
+
+smooth in float fZ;
+
+void main()
+{
+ vec4 col = FinalColor();
+ if (col.a > 30.0/255.0) discard;
+
+ oColor = col;
gl_FragDepth = fZ;
}
)";
@@ -389,11 +419,23 @@ void main()
enum
{
RenderFlag_WBuffer = 0x01,
+ RenderFlag_Trans = 0x02,
};
GLuint RenderShader[16][3];
+typedef struct
+{
+ Polygon* PolyData;
+
+ u16* Indices;
+ u32 RenderKey;
+
+} RendererPolygon;
+
+RendererPolygon PolygonList[2048];
+
// vertex buffer
// * XYZW: 4x16bit
// * RGBA: 4x8bit
@@ -422,8 +464,6 @@ GLuint FramebufferID, PixelbufferID;
u8 Framebuffer[256*192*4];
u8 CurLine[256*4];
-GLuint AuxBufferID;
-
bool InitGLExtensions()
{
@@ -620,8 +660,14 @@ bool Init()
//if (!BuildShaderProgram(kRenderVS, kRenderFS, RenderShader, "RenderShader"))
// return false;
- if (!BuildRenderShader(0, kRenderVS_Z, kRenderFS_Z)) return false;
- if (!BuildRenderShader(RenderFlag_WBuffer, kRenderVS_W, kRenderFS_W)) return false;
+ if (!BuildRenderShader(0,
+ kRenderVS_Z, kRenderFS_ZO)) return false;
+ if (!BuildRenderShader(RenderFlag_WBuffer,
+ kRenderVS_W, kRenderFS_WO)) return false;
+ if (!BuildRenderShader(RenderFlag_Trans,
+ kRenderVS_Z, kRenderFS_ZT)) return false;
+ if (!BuildRenderShader(RenderFlag_Trans | RenderFlag_WBuffer,
+ kRenderVS_W, kRenderFS_WT)) return false;
glGenBuffers(1, &VertexBufferID);
@@ -697,8 +743,43 @@ void Reset()
//
}
-//u64 texpool1[1024]; u32 texpool2[1024];
-void BuildPolygons(Polygon** polygons, int npolys)
+
+void SetupPolygon(RendererPolygon* rp, Polygon* polygon)
+{
+ rp->PolyData = polygon;
+
+ // render key: depending on what we're drawing
+ // opaque polygons:
+ // - depthfunc
+ // -- alpha=0
+ // regular translucent polygons:
+ // - depthfunc
+ // -- depthwrite
+ // --- polyID
+ // shadow mask polygons:
+ // - depthfunc?????
+ // shadow polygons:
+ // - depthfunc
+ // -- depthwrite
+ // --- polyID
+
+ rp->RenderKey = (polygon->Attr >> 14) & 0x1; // bit14 - depth func
+ if (!polygon->IsShadowMask)
+ {
+ if (polygon->Translucent)
+ {
+ rp->RenderKey |= (polygon->Attr >> 10) & 0x2; // bit11 - depth write
+ rp->RenderKey |= (polygon->Attr & 0x3F000000) >> 16; // polygon ID
+ }
+ else
+ {
+ if ((polygon->Attr & 0x001F0000) == 0)
+ rp->RenderKey |= 0x2;
+ }
+ }
+}
+
+void BuildPolygons(RendererPolygon* polygons, int npolys)
{
u32* vptr = &VertexBuffer[0];
u32 vidx = 0;
@@ -706,39 +787,12 @@ void BuildPolygons(Polygon** polygons, int npolys)
u16* iptr = &IndexBuffer[0];
u32 numtriangles = 0;
- /*memset(texpool1, 0, 1024*8);
- memset(texpool2, 0, 1024*4);
- u32 texcount1 = 0, texcount2 = 0;
-
- u32 texsizecnt[64];
- memset(texsizecnt, 0, 64*4);*/
-
for (int i = 0; i < npolys; i++)
{
- Polygon* poly = polygons[i];
- if (poly->Degenerate) continue;
+ RendererPolygon* rp = &polygons[i];
+ Polygon* poly = rp->PolyData;
- /*u32 tid1 = -1, tid2 = -1;
- for (int k = 0; k < 1024; k++)
- {
- if (texpool1[k] == ((u64)poly->TexParam | ((u64)poly->TexPalette << 32)))
- {
- tid1 = k;
- }
- if (texpool2[k] == poly->TexParam)
- {
- tid2 = k;
- }
- }
- if (tid1 == -1)
- {
- texpool1[texcount1++] = ((u64)poly->TexParam | ((u64)poly->TexPalette << 32));
- }
- if (tid2 == -1)
- {
- texpool2[texcount2++] = poly->TexParam;
- texsizecnt[(poly->TexParam >> 20) & 0x3F]++;
- }*/
+ rp->Indices = iptr;
u32 vidx_first = vidx;
@@ -792,17 +846,6 @@ void BuildPolygons(Polygon** polygons, int npolys)
NumTriangles = numtriangles;
NumVertices = vidx;
- /*printf("polygons done: %d | textures by attr+pal: %d | textures by attr: %d\n", RenderNumPolygons, texcount1, texcount2);
- printf("texture sizes: ");
- for (int s = 0; s < 64; s++)
- {
- u32 n = texsizecnt[s];
- if (!n) continue;
- int sizes = 8 << (s & 0x7);
- int sizet = 8 << (s >> 3);
- printf("%dx%d: %d, ", sizes, sizet, n);
- }
- printf("\n");*/
}
@@ -856,16 +899,21 @@ void RenderFrame()
// render shit here
u32 flags = 0;
if (RenderPolygonRAM[0]->WBuffer) flags |= RenderFlag_WBuffer;
- UseRenderShader(flags);
- //glBindTexture(GL_TEXTURE_2D, AuxBufferID);
- //glBindImageTexture(0, AuxBufferID, 0, GL_FALSE, 0, GL_READ_WRITE, GL_RG32UI);
+ int npolys = 0;
+ for (int i = 0; i < RenderNumPolygons; i++)
+ {
+ if (RenderPolygonRAM[i]->Degenerate) continue;
+ SetupPolygon(&PolygonList[npolys++], RenderPolygonRAM[i]);
+ }
+
+ UseRenderShader(flags);
// zorp
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);
- BuildPolygons(&RenderPolygonRAM[0], RenderNumPolygons);
+ BuildPolygons(&PolygonList[0], npolys);
glBindBuffer(GL_ARRAY_BUFFER, VertexBufferID);
glBufferSubData(GL_ARRAY_BUFFER, 0, NumVertices*7*4, VertexBuffer);
--
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