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Unify quad drawing

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This commit is contained in:
numzero 2023-02-27 21:56:26 +03:00
parent 4fba496917
commit c5ce853148
2 changed files with 63 additions and 79 deletions
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135
source/Irrlicht/OpenGL/Driver.cpp
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@ -63,6 +63,7 @@ COpenGL3Driver::COpenGL3Driver(const SIrrlichtCreationParameters& params, io::IF
ContextManager->activateContext(ExposedData, false);
GL.LoadAllProcedures(ContextManager);
GL.DebugMessageCallback(debugCb, this);
initQuadsIndices();
}
COpenGL3Driver::~COpenGL3Driver()
@ -89,6 +90,20 @@ COpenGL3Driver::~COpenGL3Driver()
}
}
void COpenGL3Driver::initQuadsIndices(int max_vertex_count)
{
int max_quad_count = max_vertex_count / 4;
QuadsIndices.reserve(6 * max_quad_count);
for (int k = 0; k < max_quad_count; k++) {
QuadsIndices.push_back(4 * k + 0);
QuadsIndices.push_back(4 * k + 1);
QuadsIndices.push_back(4 * k + 2);
QuadsIndices.push_back(4 * k + 0);
QuadsIndices.push_back(4 * k + 2);
QuadsIndices.push_back(4 * k + 3);
}
}
bool COpenGL3Driver::genericDriverInit(const core::dimension2d<u32>& screenSize, bool stencilBuffer)
{
Name = glGetString(GL_VERSION);
@ -886,23 +901,13 @@ COpenGL3Driver::~COpenGL3Driver()
f32 down = 2.f - (f32)destRect.LowerRightCorner.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
f32 top = 2.f - (f32)destRect.UpperLeftCorner.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
u16 indices[] = { 0, 1, 2, 3 };
S3DVertex vertices[4];
vertices[0] = S3DVertex(left, top, 0, 0, 0, 1, useColor[0], tcoords.UpperLeftCorner.X, tcoords.UpperLeftCorner.Y);
vertices[1] = S3DVertex(right, top, 0, 0, 0, 1, useColor[3], tcoords.LowerRightCorner.X, tcoords.UpperLeftCorner.Y);
vertices[2] = S3DVertex(right, down, 0, 0, 0, 1, useColor[2], tcoords.LowerRightCorner.X, tcoords.LowerRightCorner.Y);
vertices[3] = S3DVertex(left, down, 0, 0, 0, 1, useColor[1], tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y);
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glEnableVertexAttribArray(EVA_TCOORD0);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].TCoords);
glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_SHORT, indices);
glDisableVertexAttribArray(EVA_TCOORD0);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
drawQuad(vertices, true);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
@ -921,7 +926,6 @@ COpenGL3Driver::~COpenGL3Driver()
setRenderStates2DMode(false, true, true);
u16 quad2DIndices[] = { 0, 1, 2, 3 };
S3DVertex quad2DVertices[4];
quad2DVertices[0].Pos = core::vector3df(-1.f, 1.f, 0.f);
@ -941,19 +945,9 @@ COpenGL3Driver::~COpenGL3Driver()
quad2DVertices[2].Color = SColor(0xFFFFFFFF);
quad2DVertices[3].Color = SColor(0xFFFFFFFF);
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glEnableVertexAttribArray(EVA_TCOORD0);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(quad2DVertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(quad2DVertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(quad2DVertices))[0].TCoords);
glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_SHORT, quad2DIndices);
glDisableVertexAttribArray(EVA_TCOORD0);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
drawQuad(quad2DVertices, true);
}
void COpenGL3Driver::draw2DImageBatch(const video::ITexture* texture,
const core::array<core::position2d<s32> >& positions,
const core::array<core::rect<s32> >& sourceRects,
@ -984,7 +978,6 @@ COpenGL3Driver::~COpenGL3Driver()
const irr::u32 drawCount = core::min_<u32>(positions.size(), sourceRects.size());
core::array<S3DVertex> vtx(drawCount * 4);
core::array<u16> indices(drawCount * 6);
for (u32 i = 0; i < drawCount; i++)
{
@ -1020,30 +1013,12 @@ COpenGL3Driver::~COpenGL3Driver()
vtx.push_back(S3DVertex(left, down, 0.0f,
0.0f, 0.0f, 0.0f, color,
tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y));
const u32 curPos = vtx.size() - 4;
indices.push_back(0 + curPos);
indices.push_back(1 + curPos);
indices.push_back(2 + curPos);
indices.push_back(0 + curPos);
indices.push_back(2 + curPos);
indices.push_back(3 + curPos);
}
if (vtx.size())
{
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glEnableVertexAttribArray(EVA_TCOORD0);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &vtx[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &vtx[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), &vtx[0].TCoords);
glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_SHORT, indices.pointer());
glDisableVertexAttribArray(EVA_TCOORD0);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
}
drawQuads(vtx.const_pointer(), drawCount, true);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
}
@ -1072,20 +1047,13 @@ COpenGL3Driver::~COpenGL3Driver()
f32 down = 2.f - (f32)pos.LowerRightCorner.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
f32 top = 2.f - (f32)pos.UpperLeftCorner.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex(left, top, 0, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex(right, top, 0, 0, 0, 1, color, 0, 0);
vertices[2] = S3DVertex(right, down, 0, 0, 0, 1, color, 0, 0);
vertices[3] = S3DVertex(left, down, 0, 0, 0, 1, color, 0, 0);
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_SHORT, indices);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
drawQuad(vertices, false);
}
@ -1118,20 +1086,13 @@ COpenGL3Driver::~COpenGL3Driver()
f32 down = 2.f - (f32)pos.LowerRightCorner.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
f32 top = 2.f - (f32)pos.UpperLeftCorner.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
u16 indices[] = {0, 1, 2, 3};
S3DVertex vertices[4];
vertices[0] = S3DVertex(left, top, 0, 0, 0, 1, colorLeftUp, 0, 0);
vertices[1] = S3DVertex(right, top, 0, 0, 0, 1, colorRightUp, 0, 0);
vertices[2] = S3DVertex(right, down, 0, 0, 0, 1, colorRightDown, 0, 0);
vertices[3] = S3DVertex(left, down, 0, 0, 0, 1, colorLeftDown, 0, 0);
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_SHORT, indices);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
drawQuad(vertices, false);
}
@ -1155,18 +1116,11 @@ COpenGL3Driver::~COpenGL3Driver()
f32 startY = 2.f - (f32)start.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
f32 endY = 2.f - (f32)end.Y / (f32)renderTargetSize.Height * 2.f - 1.f;
u16 indices[] = {0, 1};
S3DVertex vertices[2];
vertices[0] = S3DVertex(startX, startY, 0, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex(endX, endY, 0, 0, 0, 1, color, 1, 1);
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glDrawElements(GL_LINES, 2, GL_UNSIGNED_SHORT, indices);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
drawArrays(GL_LINES, vertices, 2, false);
}
}
@ -1189,15 +1143,45 @@ COpenGL3Driver::~COpenGL3Driver()
S3DVertex vertices[1];
vertices[0] = S3DVertex(X, Y, 0, 0, 0, 1, color, 0, 0);
drawArrays(GL_POINTS, vertices, 1, false);
}
void COpenGL3Driver::drawQuads(const S3DVertex *vertices, int quad_count, bool textured)
{
assert(6 * std::size_t(quad_count) <= QuadsIndices.size());
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
if (textured)
glEnableVertexAttribArray(EVA_TCOORD0);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glDrawArrays(GL_POINTS, 0, 1);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].TCoords);
glDrawElements(GL_TRIANGLES, 6 * quad_count, GL_UNSIGNED_SHORT, QuadsIndices.data());
glDisableVertexAttribArray(EVA_TCOORD0);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
}
void COpenGL3Driver::drawArrays(GLenum type, const S3DVertex *vertices, int vertex_count, bool textured)
{
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
if (textured)
glEnableVertexAttribArray(EVA_TCOORD0);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].TCoords);
glDrawArrays(type, 0, vertex_count);
glDisableVertexAttribArray(EVA_TCOORD0);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
}
void COpenGL3Driver::drawQuad(const S3DVertex (&vertices)[4], bool textured)
{
drawQuads(vertices, 1, textured);
}
ITexture* COpenGL3Driver::createDeviceDependentTexture(const io::path& name, IImage* image)
{
core::array<IImage*> imageArray(1);
@ -1706,18 +1690,11 @@ COpenGL3Driver::~COpenGL3Driver()
{
setRenderStates3DMode();
u16 indices[] = {0, 1};
S3DVertex vertices[2];
vertices[0] = S3DVertex(start.X, start.Y, start.Z, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex(end.X, end.Y, end.Z, 0, 0, 1, color, 0, 0);
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Color);
glDrawElements(GL_LINES, 2, GL_UNSIGNED_SHORT, indices);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_POSITION);
drawArrays(GL_LINES, vertices, 2, false);
}

7
source/Irrlicht/OpenGL/Driver.h
View File

@ -332,6 +332,10 @@ namespace video
//! Same as `CacheHandler->setViewport`, but also sets `ViewPort`
virtual void setViewPortRaw(u32 width, u32 height);
void drawQuad(const S3DVertex (&vertices)[4], bool textured);
void drawQuads(const S3DVertex *vertices, int quad_count, bool textured);
void drawArrays(GLenum type, const S3DVertex *vertices, int vertex_count, bool textured);
COpenGL3CacheHandler* CacheHandler;
core::stringw Name;
core::stringc VendorName;
@ -379,6 +383,9 @@ private:
IContextManager* ContextManager;
std::vector<u16> QuadsIndices;
void initQuadsIndices(int max_vertex_count = 65536);
void debugCb(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message);
static void APIENTRY debugCb(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam);
};