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[Feat] (MG_Util/Metrics): GetGLTypeSize

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swung0x48
2025-08-22 17:29:25 +08:00
parent 2be194c147
commit 7a7f6a0533
5 changed files with 136 additions and 0 deletions
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MobileGL/MG_Test/Buffer/CMakeLists.txt
+1
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@@ -32,6 +32,7 @@ add_executable(
${MGL_ROOT}/MobileGL/MG_Util/Converters/MGToGL/DataTypeConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Converters/GLToMG/BufferEnumConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Converters/GLToMG/DataTypeConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Metrics/BufferMetrics.cpp
${MGL_ROOT}/MobileGL/MG_Util/ShaderTranspiler/ShaderCompiler.cpp
${MGL_ROOT}/MobileGL/MG_Util/ShaderTranspiler/SpvcSession.cpp
${MGL_ROOT}/MobileGL/MG_Backend/Init.cpp
MobileGL/MG_Test/Program/CMakeLists.txt
+1
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@@ -63,6 +63,7 @@ add_executable(
${MGL_ROOT}/MobileGL/MG_Util/Converters/MGToGL/DataTypeConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Converters/GLToMG/BufferEnumConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Converters/GLToMG/DataTypeConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Metrics/BufferMetrics.cpp
${MGL_ROOT}/MobileGL/MG_Backend/Init.cpp
${MGL_ROOT}/MobileGL/MG_Util/Debug/Log.cpp
)
MobileGL/MG_Test/VertexArray/CMakeLists.txt
+1
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@@ -32,6 +32,7 @@ add_executable(
${MGL_ROOT}/MobileGL/MG_Util/Converters/MGToGL/DataTypeConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Converters/GLToMG/BufferEnumConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Converters/GLToMG/DataTypeConverter.cpp
${MGL_ROOT}/MobileGL/MG_Util/Metrics/BufferMetrics.cpp
${MGL_ROOT}/MobileGL/MG_Util/ShaderTranspiler/ShaderCompiler.cpp
${MGL_ROOT}/MobileGL/MG_Util/ShaderTranspiler/SpvcSession.cpp
${MGL_ROOT}/MobileGL/MG_Backend/Init.cpp
MobileGL/MG_Util/Metrics/BufferMetrics.cpp
+117
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@@ -0,0 +1,117 @@
//
// Created by Swung0x48 on 2025/8/22.
//
#include "BufferMetrics.h"
namespace MobileGL {
namespace MG_Util {
SizeT GetGLTypeSize(GLenum type) {
switch (type) {
// Scalars
case GL_BYTE:
case GL_UNSIGNED_BYTE:
case GL_UNSIGNED_BYTE_3_3_2:
return 1;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
case GL_HALF_FLOAT:
case GL_UNSIGNED_SHORT_5_6_5:
case GL_UNSIGNED_SHORT_4_4_4_4:
case GL_UNSIGNED_SHORT_5_5_5_1:
return 2;
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
case GL_FIXED:
case GL_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_2_10_10_10_REV:
case GL_UNSIGNED_INT_10F_11F_11F_REV:
case GL_UNSIGNED_INT_5_9_9_9_REV:
return 4;
case GL_DOUBLE:
#ifdef GL_ARB_gpu_shader_int64
case GL_UNSIGNED_INT64_ARB:
case GL_INT64_ARB:
#endif
return 8;
// ---- Vector Types ----
// 2-component vec
case GL_FLOAT_VEC2:
case GL_INT_VEC2:
case GL_UNSIGNED_INT_VEC2:
case GL_BOOL_VEC2:
return 2 * sizeof(GLfloat); // GL_BOOL_VEC2 is also 2 * 4 bytes
case GL_DOUBLE_VEC2:
return 2 * sizeof(GLdouble);
// 3-component vec
case GL_FLOAT_VEC3:
case GL_INT_VEC3:
case GL_UNSIGNED_INT_VEC3:
case GL_BOOL_VEC3:
return 3 * sizeof(GLfloat);
case GL_DOUBLE_VEC3:
return 3 * sizeof(GLdouble);
// 4-component vec
case GL_FLOAT_VEC4:
case GL_INT_VEC4:
case GL_UNSIGNED_INT_VEC4:
case GL_BOOL_VEC4:
return 4 * sizeof(GLfloat);
case GL_DOUBLE_VEC4:
return 4 * sizeof(GLdouble);
// ---- Matrix Types ----
// Double non-square
case GL_FLOAT_MAT2:
return 2 * 2 * sizeof(GLfloat);
case GL_FLOAT_MAT3:
return 3 * 3 * sizeof(GLfloat);
case GL_FLOAT_MAT4:
return 4 * 4 * sizeof(GLfloat);
// Float non-square
case GL_FLOAT_MAT2x3:
return 2 * 3 * sizeof(GLfloat);
case GL_FLOAT_MAT2x4:
return 2 * 4 * sizeof(GLfloat);
case GL_FLOAT_MAT3x2:
return 3 * 2 * sizeof(GLfloat);
case GL_FLOAT_MAT3x4:
return 3 * 4 * sizeof(GLfloat);
case GL_FLOAT_MAT4x2:
return 4 * 2 * sizeof(GLfloat);
case GL_FLOAT_MAT4x3:
return 4 * 3 * sizeof(GLfloat);
// Double mat
case GL_DOUBLE_MAT2:
return 2 * 2 * sizeof(GLdouble);
case GL_DOUBLE_MAT3:
return 3 * 3 * sizeof(GLdouble);
case GL_DOUBLE_MAT4:
return 4 * 4 * sizeof(GLdouble);
// Double non-square
case GL_DOUBLE_MAT2x3:
return 2 * 3 * sizeof(GLdouble);
case GL_DOUBLE_MAT2x4:
return 2 * 4 * sizeof(GLdouble);
case GL_DOUBLE_MAT3x2:
return 3 * 2 * sizeof(GLdouble);
case GL_DOUBLE_MAT3x4:
return 3 * 4 * sizeof(GLdouble);
case GL_DOUBLE_MAT4x2:
return 4 * 2 * sizeof(GLdouble);
case GL_DOUBLE_MAT4x3:
return 4 * 3 * sizeof(GLdouble);
default:
return -1;
}
}
}
}
MobileGL/MG_Util/Metrics/BufferMetrics.h
+16
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@@ -0,0 +1,16 @@
//
// Created by Swung0x48 on 2025/8/22.
//
#ifndef BUFFERMETRICS_H
#define BUFFERMETRICS_H
#include <Includes.h>
namespace MobileGL {
namespace MG_Util {
SizeT GetGLTypeSize(GLenum type);
}
}
#endif //BUFFERMETRICS_H