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Unify drawing functions

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numzero 2023-02-28 00:51:29 +03:00
parent 48270029cd
commit 05384fdc5e
2 changed files with 140 additions and 124 deletions
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253
source/Irrlicht/OpenGL/Driver.cpp
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@ -30,6 +30,98 @@ namespace irr
{
namespace video
{
struct VertexAttribute {
enum class Mode {
Regular,
Normalized,
Integral,
};
int Index;
int ComponentCount;
GLenum ComponentType;
Mode mode;
int Offset;
};
struct VertexType {
int VertexSize;
int AttributeCount;
VertexAttribute Attributes[];
VertexType(const VertexType &) = delete;
VertexType &operator= (const VertexType &) = delete;
};
static const VertexAttribute *begin(const VertexType &type)
{
return type.Attributes;
}
static const VertexAttribute *end(const VertexType &type)
{
return type.Attributes + type.AttributeCount;
}
static constexpr VertexType vtStandard = {
sizeof(S3DVertex), 4, {
{EVA_POSITION, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex, Pos)},
{EVA_NORMAL, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex, Normal)},
{EVA_COLOR, 4, GL_UNSIGNED_BYTE, VertexAttribute::Mode::Normalized, offsetof(S3DVertex, Color)},
{EVA_TCOORD0, 2, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex, TCoords)},
},
};
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Winvalid-offsetof"
static constexpr VertexType vt2TCoords = {
sizeof(S3DVertex2TCoords), 5, {
{EVA_POSITION, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex2TCoords, Pos)},
{EVA_NORMAL, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex2TCoords, Normal)},
{EVA_COLOR, 4, GL_UNSIGNED_BYTE, VertexAttribute::Mode::Normalized, offsetof(S3DVertex2TCoords, Color)},
{EVA_TCOORD0, 2, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex2TCoords, TCoords)},
{EVA_TCOORD1, 2, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex2TCoords, TCoords2)},
},
};
static constexpr VertexType vtTangents = {
sizeof(S3DVertexTangents), 6, {
{EVA_POSITION, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertexTangents, Pos)},
{EVA_NORMAL, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertexTangents, Normal)},
{EVA_COLOR, 4, GL_UNSIGNED_BYTE, VertexAttribute::Mode::Normalized, offsetof(S3DVertexTangents, Color)},
{EVA_TCOORD0, 2, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertexTangents, TCoords)},
{EVA_TANGENT, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertexTangents, Tangent)},
{EVA_BINORMAL, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertexTangents, Binormal)},
},
};
#pragma GCC diagnostic pop
static const VertexType &getVertexTypeDescription(E_VERTEX_TYPE type)
{
switch (type) {
case EVT_STANDARD: return vtStandard;
case EVT_2TCOORDS: return vt2TCoords;
case EVT_TANGENTS: return vtTangents;
default: assert(false);
}
}
static constexpr VertexType vt2DImage = {
sizeof(S3DVertex), 3, {
{EVA_POSITION, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex, Pos)},
{EVA_COLOR, 4, GL_UNSIGNED_BYTE, VertexAttribute::Mode::Normalized, offsetof(S3DVertex, Color)},
{EVA_TCOORD0, 2, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex, TCoords)},
},
};
static constexpr VertexType vtPrimitive = {
sizeof(S3DVertex), 2, {
{EVA_POSITION, 3, GL_FLOAT, VertexAttribute::Mode::Regular, offsetof(S3DVertex, Pos)},
{EVA_COLOR, 4, GL_UNSIGNED_BYTE, VertexAttribute::Mode::Normalized, offsetof(S3DVertex, Color)},
},
};
void APIENTRY COpenGL3Driver::debugCb(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam)
{
@ -692,75 +784,8 @@ COpenGL3Driver::~COpenGL3Driver()
setRenderStates3DMode();
glEnableVertexAttribArray(EVA_POSITION);
glEnableVertexAttribArray(EVA_COLOR);
glEnableVertexAttribArray(EVA_NORMAL);
glEnableVertexAttribArray(EVA_TCOORD0);
switch (vType)
{
case EVT_STANDARD:
if (vertices)
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex), &(static_cast<const S3DVertex*>(vertices))[0].Normal);
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);
}
else
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex), 0);
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex), buffer_offset(12));
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex), buffer_offset(24));
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex), buffer_offset(28));
}
break;
case EVT_2TCOORDS:
glEnableVertexAttribArray(EVA_TCOORD1);
if (vertices)
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].Normal);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].TCoords);
glVertexAttribPointer(EVA_TCOORD1, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), &(static_cast<const S3DVertex2TCoords*>(vertices))[0].TCoords2);
}
else
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(0));
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(12));
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertex2TCoords), buffer_offset(24));
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(28));
glVertexAttribPointer(EVA_TCOORD1, 2, GL_FLOAT, false, sizeof(S3DVertex2TCoords), buffer_offset(36));
}
break;
case EVT_TANGENTS:
glEnableVertexAttribArray(EVA_TANGENT);
glEnableVertexAttribArray(EVA_BINORMAL);
if (vertices)
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Pos);
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Normal);
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Color);
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].TCoords);
glVertexAttribPointer(EVA_TANGENT, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Tangent);
glVertexAttribPointer(EVA_BINORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), &(static_cast<const S3DVertexTangents*>(vertices))[0].Binormal);
}
else
{
glVertexAttribPointer(EVA_POSITION, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(0));
glVertexAttribPointer(EVA_NORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(12));
glVertexAttribPointer(EVA_COLOR, 4, GL_UNSIGNED_BYTE, true, sizeof(S3DVertexTangents), buffer_offset(24));
glVertexAttribPointer(EVA_TCOORD0, 2, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(28));
glVertexAttribPointer(EVA_TANGENT, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(36));
glVertexAttribPointer(EVA_BINORMAL, 3, GL_FLOAT, false, sizeof(S3DVertexTangents), buffer_offset(48));
}
break;
}
auto &vTypeDesc = getVertexTypeDescription(vType);
beginDraw(vTypeDesc, reinterpret_cast<uintptr_t>(vertices));
GLenum indexSize = 0;
switch (iType)
@ -813,23 +838,7 @@ COpenGL3Driver::~COpenGL3Driver()
break;
}
switch (vType)
{
case EVT_2TCOORDS:
glDisableVertexAttribArray(EVA_TCOORD1);
break;
case EVT_TANGENTS:
glDisableVertexAttribArray(EVA_TANGENT);
glDisableVertexAttribArray(EVA_BINORMAL);
break;
default:
break;
}
glDisableVertexAttribArray(EVA_POSITION);
glDisableVertexAttribArray(EVA_NORMAL);
glDisableVertexAttribArray(EVA_COLOR);
glDisableVertexAttribArray(EVA_TCOORD0);
endDraw(vTypeDesc);
}
@ -907,7 +916,7 @@ COpenGL3Driver::~COpenGL3Driver()
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);
drawQuad(vertices, true);
drawQuad(vt2DImage, vertices);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
@ -945,7 +954,7 @@ COpenGL3Driver::~COpenGL3Driver()
quad2DVertices[2].Color = SColor(0xFFFFFFFF);
quad2DVertices[3].Color = SColor(0xFFFFFFFF);
drawQuad(quad2DVertices, true);
drawQuad(vt2DImage, quad2DVertices);
}
void COpenGL3Driver::draw2DImageBatch(const video::ITexture* texture,
@ -976,6 +985,7 @@ COpenGL3Driver::~COpenGL3Driver()
}
const irr::u32 drawCount = core::min_<u32>(positions.size(), sourceRects.size());
assert(6 * std::size_t(drawCount) <= QuadsIndices.size());
core::array<S3DVertex> vtx(drawCount * 4);
@ -1015,7 +1025,7 @@ COpenGL3Driver::~COpenGL3Driver()
tcoords.UpperLeftCorner.X, tcoords.LowerRightCorner.Y));
}
drawQuads(vtx.const_pointer(), drawCount, true);
drawElements(GL_TRIANGLES, vt2DImage, vtx.const_pointer(), QuadsIndices.data(), 6 * drawCount);
if (clipRect)
glDisable(GL_SCISSOR_TEST);
@ -1053,7 +1063,7 @@ COpenGL3Driver::~COpenGL3Driver()
vertices[2] = S3DVertex(right, down, 0, 0, 0, 1, color, 0, 0);
vertices[3] = S3DVertex(left, down, 0, 0, 0, 1, color, 0, 0);
drawQuad(vertices, false);
drawQuad(vtPrimitive, vertices);
}
@ -1092,7 +1102,7 @@ COpenGL3Driver::~COpenGL3Driver()
vertices[2] = S3DVertex(right, down, 0, 0, 0, 1, colorRightDown, 0, 0);
vertices[3] = S3DVertex(left, down, 0, 0, 0, 1, colorLeftDown, 0, 0);
drawQuad(vertices, false);
drawQuad(vtPrimitive, vertices);
}
@ -1120,7 +1130,7 @@ COpenGL3Driver::~COpenGL3Driver()
vertices[0] = S3DVertex(startX, startY, 0, 0, 0, 1, color, 0, 0);
vertices[1] = S3DVertex(endX, endY, 0, 0, 0, 1, color, 1, 1);
drawArrays(GL_LINES, vertices, 2, false);
drawArrays(GL_LINES, vtPrimitive, vertices, 2);
}
}
@ -1143,43 +1153,44 @@ COpenGL3Driver::~COpenGL3Driver()
S3DVertex vertices[1];
vertices[0] = S3DVertex(X, Y, 0, 0, 0, 1, color, 0, 0);
drawArrays(GL_POINTS, vertices, 1, false);
drawArrays(GL_POINTS, vtPrimitive, vertices, 1);
}
void COpenGL3Driver::drawQuads(const S3DVertex *vertices, int quad_count, bool textured)
void COpenGL3Driver::drawQuad(const VertexType &vertexType, const S3DVertex (&vertices)[4])
{
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);
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);
drawArrays(GL_TRIANGLE_FAN, vertexType, vertices, 4);
}
void COpenGL3Driver::drawArrays(GLenum type, const S3DVertex *vertices, int vertex_count, bool textured)
void COpenGL3Driver::drawArrays(GLenum primitiveType, const VertexType &vertexType, const void *vertices, int vertexCount)
{
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);
beginDraw(vertexType, reinterpret_cast<uintptr_t>(vertices));
glDrawArrays(primitiveType, 0, vertexCount);
endDraw(vertexType);
}
void COpenGL3Driver::drawQuad(const S3DVertex (&vertices)[4], bool textured)
void COpenGL3Driver::drawElements(GLenum primitiveType, const VertexType &vertexType, const void *vertices, const u16 *indices, int indexCount)
{
drawQuads(vertices, 1, textured);
beginDraw(vertexType, reinterpret_cast<uintptr_t>(vertices));
glDrawElements(primitiveType, indexCount, GL_UNSIGNED_SHORT, indices);
endDraw(vertexType);
}
void COpenGL3Driver::beginDraw(const VertexType &vertexType, uintptr_t verticesBase)
{
for (auto attr: vertexType) {
glEnableVertexAttribArray(attr.Index);
switch (attr.mode) {
case VertexAttribute::Mode::Regular: glVertexAttribPointer(attr.Index, attr.ComponentCount, attr.ComponentType, GL_FALSE, vertexType.VertexSize, reinterpret_cast<void *>(verticesBase + attr.Offset)); break;
case VertexAttribute::Mode::Normalized: glVertexAttribPointer(attr.Index, attr.ComponentCount, attr.ComponentType, GL_TRUE, vertexType.VertexSize, reinterpret_cast<void *>(verticesBase + attr.Offset)); break;
case VertexAttribute::Mode::Integral: glVertexAttribIPointer(attr.Index, attr.ComponentCount, attr.ComponentType, vertexType.VertexSize, reinterpret_cast<void *>(verticesBase + attr.Offset)); break;
}
}
}
void COpenGL3Driver::endDraw(const VertexType &vertexType)
{
for (auto attr: vertexType)
glDisableVertexAttribArray(attr.Index);
}
ITexture* COpenGL3Driver::createDeviceDependentTexture(const io::path& name, IImage* image)
@ -1694,7 +1705,7 @@ COpenGL3Driver::~COpenGL3Driver()
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);
drawArrays(GL_LINES, vertices, 2, false);
drawArrays(GL_LINES, vtPrimitive, vertices, 2);
}

11
source/Irrlicht/OpenGL/Driver.h
View File

@ -20,6 +20,7 @@ namespace irr
{
namespace video
{
struct VertexType;
class COpenGL3FixedPipelineRenderer;
class COpenGL3Renderer2D;
@ -329,9 +330,13 @@ 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);
void drawQuad(const VertexType &vertexType, const S3DVertex (&vertices)[4]);
void drawArrays(GLenum primitiveType, const VertexType &vertexType, const void *vertices, int vertexCount);
void drawElements(GLenum primitiveType, const VertexType &vertexType, const void *vertices, const u16 *indices, int indexCount);
void drawElements(GLenum primitiveType, const VertexType &vertexType, uintptr_t vertices, uintptr_t indices, int indexCount);
void beginDraw(const VertexType &vertexType, uintptr_t verticesBase);
void endDraw(const VertexType &vertexType);
COpenGL3CacheHandler* CacheHandler;
core::stringw Name;