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de-hardcode the GL renderer.

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init framebuffer to black.
fix bugs.
This commit is contained in:
Arisotura
2019-05-12 16:32:53 +02:00
parent a32c5c99bb
commit 0a464c504d
6 changed files with 111 additions and 42 deletions
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104
src/GPU3D_OpenGL43.cpp
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@ -650,9 +650,12 @@ u32 NumTriangles;
GLuint TexMemID;
GLuint TexPalMemID;
int ScaleFactor;
int ScreenW, ScreenH;
GLuint FramebufferTex[4];
GLuint FramebufferID[2], PixelbufferID;
u8 Framebuffer[512*384*4];
u32* Framebuffer = NULL;
bool ChunkedRendering = false;
@ -863,13 +866,6 @@ bool Init()
glEnable(GL_STENCIL_TEST);
// TODO: make configurable (hires, etc)
// set those to 2x the final resolution for antialiased rendering
int screenW = 512;
int screenH = 384;
glViewport(0, 0, screenW, screenH);
glDepthRange(0, 1);
glClearDepth(1.0);
@ -897,8 +893,7 @@ bool Init()
kRenderVS_W, kRenderFS_WS)) return false;
ShaderConfig.uScreenSize[0] = screenW;
ShaderConfig.uScreenSize[1] = screenH;
memset(&ShaderConfig, 0, sizeof(ShaderConfig));
glGenBuffers(1, &ShaderConfigUBO);
glBindBuffer(GL_UNIFORM_BUFFER, ShaderConfigUBO);
@ -959,7 +954,6 @@ bool Init()
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, screenW, screenH, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, FramebufferTex[0], 0);
// depth/stencil buffer
@ -968,7 +962,6 @@ bool Init()
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, screenW, screenH, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
glFramebufferTexture(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, FramebufferTex[1], 0);
// attribute buffer
@ -980,7 +973,6 @@ bool Init()
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8UI, screenW, screenH, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, NULL);
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, FramebufferTex[2], 0);
// downscale framebuffer, for antialiased mode
@ -990,7 +982,6 @@ bool Init()
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, screenW/2, screenH/2, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glFramebufferTexture(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, FramebufferTex[3], 0);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferID[0]);
@ -1004,8 +995,6 @@ bool Init()
glBlendFuncSeparatei(1, GL_ONE, GL_ZERO, GL_ONE, GL_ZERO);
glGenBuffers(1, &PixelbufferID);
glBindBuffer(GL_PIXEL_PACK_BUFFER, PixelbufferID);
glBufferData(GL_PIXEL_PACK_BUFFER, screenW*screenH*4, NULL, GL_DYNAMIC_READ);
glActiveTexture(GL_TEXTURE0);
glGenTextures(1, &TexMemID);
@ -1041,6 +1030,32 @@ void Reset()
//
}
void SetScale(int scale)
{
ScaleFactor = scale;
// TODO: antialiasing setting
ScreenW = 256 << scale;
ScreenH = 192 << scale;
glViewport(0, 0, ScreenW, ScreenH);
glBindTexture(GL_TEXTURE_2D, FramebufferTex[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, ScreenW, ScreenH, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glBindTexture(GL_TEXTURE_2D, FramebufferTex[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH24_STENCIL8, ScreenW, ScreenH, 0, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
glBindTexture(GL_TEXTURE_2D, FramebufferTex[2]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8UI, ScreenW, ScreenH, 0, GL_RGB_INTEGER, GL_UNSIGNED_BYTE, NULL);
glBindTexture(GL_TEXTURE_2D, FramebufferTex[3]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, ScreenW/2, ScreenH/2, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glBindBuffer(GL_PIXEL_PACK_BUFFER, PixelbufferID);
glBufferData(GL_PIXEL_PACK_BUFFER, ScreenW*ScreenH*4, NULL, GL_DYNAMIC_READ);
if (Framebuffer) delete[] Framebuffer;
Framebuffer = new u32[ScreenW*ScreenH];
}
void SetupPolygon(RendererPolygon* rp, Polygon* polygon)
{
@ -1120,14 +1135,19 @@ void BuildPolygons(RendererPolygon* polygons, int npolys)
u32 zshift = 0;
while (z > 0xFFFF) { z >>= 1; zshift++; }
u32 x = vtx->HiresPosition[0] >> 3;
u32 y = vtx->HiresPosition[1] >> 3;
*vptr++ = x | (y << 16);
u32 x, y;
if (ScaleFactor > 0)
{
x = vtx->HiresPosition[0] >> (4-ScaleFactor);
y = vtx->HiresPosition[1] >> (4-ScaleFactor);
}
else
{
x = vtx->FinalPosition[0];
y = vtx->FinalPosition[1];
}
// TODO hires-upgraded positions?
//*vptr++ = vtx->FinalPosition[0] | (vtx->FinalPosition[1] << 16);
//*vptr++ = (vtx->FinalPosition[0] << 1) | (vtx->FinalPosition[1] << 17);
//*vptr++ = (vtx->FinalPosition[0] << 2) | (vtx->FinalPosition[1] << 18);
*vptr++ = x | (y << 16);
*vptr++ = z | (w << 16);
*vptr++ = (vtx->FinalColor[0] >> 1) |
@ -1163,7 +1183,7 @@ void RenderSceneChunk(int y, int h)
u32 flags = 0;
if (RenderPolygonRAM[0]->WBuffer) flags |= RenderFlag_WBuffer;
if (h != 192) glScissor(0, y*2, 256*2, h*2);
if (h != 192) glScissor(0, y<<ScaleFactor, 256<<ScaleFactor, h<<ScaleFactor);
// pass 1: opaque pixels
@ -1356,6 +1376,8 @@ void VCount144()
void RenderFrame()
{
ShaderConfig.uScreenSize[0] = ScreenW;
ShaderConfig.uScreenSize[1] = ScreenH;
ShaderConfig.uDispCnt = RenderDispCnt;
for (int i = 0; i < 32; i++)
@ -1491,7 +1513,7 @@ void RenderFrame()
{
glBindFramebuffer(GL_READ_FRAMEBUFFER, FramebufferID[0]);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, FramebufferID[1]);
glBlitFramebuffer(0, 0, 1024, 768, 0, 0, 512, 384, GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBlitFramebuffer(0, 0, ScreenW, ScreenH, 0, 0, ScreenW/2, ScreenH/2, GL_COLOR_BUFFER_BIT, GL_LINEAR);
glBindFramebuffer(GL_FRAMEBUFFER, FramebufferID[1]);
}
@ -1504,19 +1526,21 @@ void RenderFrame()
glBindBuffer(GL_PIXEL_PACK_BUFFER, PixelbufferID);
if (!ChunkedRendering)
glReadPixels(0, 0, 256*2, 192*2, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glReadPixels(0, 0, 256<<ScaleFactor, 192<<ScaleFactor, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
else
glReadPixels(0, 0, 256*2, 48*2, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glReadPixels(0, 0, 256<<ScaleFactor, 48<<ScaleFactor, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
}
u32* GetLine(int line)
{
int stride = 256 << (ScaleFactor*2);
if (!ChunkedRendering)
{
if (line == 0)
{
u8* data = (u8*)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
if (data) memcpy(&Framebuffer[4*1024*0], data, 4*1024*192);
if (data) memcpy(&Framebuffer[stride*0], data, 4*stride*192);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
}
}
@ -1525,48 +1549,48 @@ u32* GetLine(int line)
if (line == 0)
{
u8* data = (u8*)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
if (data) memcpy(&Framebuffer[4*1024*0], data, 4*1024*48);
if (data) memcpy(&Framebuffer[stride*0], data, 4*stride*48);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
if (RenderNumPolygons) RenderSceneChunk(48, 48);
glReadPixels(0, 48*2, 256*2, 48*2, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glReadPixels(0, 48<<ScaleFactor, 256<<ScaleFactor, 48<<ScaleFactor, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
}
else if (line == 48)
{
u8* data = (u8*)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
if (data) memcpy(&Framebuffer[4*1024*48], data, 4*1024*48);
if (data) memcpy(&Framebuffer[stride*48], data, 4*stride*48);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
if (RenderNumPolygons) RenderSceneChunk(96, 48);
glReadPixels(0, 96*2, 256*2, 48*2, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glReadPixels(0, 96<<ScaleFactor, 256<<ScaleFactor, 48<<ScaleFactor, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
}
else if (line == 96)
{
u8* data = (u8*)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
if (data) memcpy(&Framebuffer[4*1024*96], data, 4*1024*48);
if (data) memcpy(&Framebuffer[stride*96], data, 4*stride*48);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
if (RenderNumPolygons) RenderSceneChunk(144, 48);
glReadPixels(0, 144*2, 256*2, 48*2, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
glReadPixels(0, 144<<ScaleFactor, 256<<ScaleFactor, 48<<ScaleFactor, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
}
else if (line == 144)
{
u8* data = (u8*)glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
if (data) memcpy(&Framebuffer[4*1024*144], data, 4*1024*48);
if (data) memcpy(&Framebuffer[stride*144], data, 4*stride*48);
glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
}
}
u32* ptr = (u32*)&Framebuffer[512*2*4 * line];
for (int i = 0; i < 1024; i++)
u64* ptr = (u64*)&Framebuffer[stride * line];
for (int i = 0; i < stride; i+=2)
{
u32 rgb = *ptr & 0x00FCFCFC;
u32 a = *ptr & 0xF8000000;
u64 rgb = *ptr & 0x00FCFCFC00FCFCFC;
u64 a = *ptr & 0xF8000000F8000000;
*ptr++ = (rgb >> 2) | (a >> 3);
}
return (u32*)&Framebuffer[512*2*4 * line];
return &Framebuffer[stride * line];
}
}