diff options
Diffstat (limited to 'gfx/models/mesh.cpp')
| -rw-r--r-- | gfx/models/mesh.cpp | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/gfx/models/mesh.cpp b/gfx/models/mesh.cpp index 0834394..52ce6bb 100644 --- a/gfx/models/mesh.cpp +++ b/gfx/models/mesh.cpp @@ -1,8 +1,11 @@ #include "mesh.h"
#include "vertex.hpp"
+#include <cstddef>
+
+#define offset_ptr(T, m) (((char *)1) + offsetof(T, m) - 1)
Mesh::Mesh(const std::span<const Vertex> vertices, const std::span<const unsigned int> indices, GLenum m) :
- m_vertexArrayObject {}, m_vertexArrayBuffers {}, m_numIndices {indices.size()}, mode {m}
+ m_vertexArrayObject {}, m_vertexArrayBuffers {}, m_numIndices {(GLsizei)indices.size()}, mode {m}
{
glGenVertexArrays(1, &m_vertexArrayObject);
glBindVertexArray(m_vertexArrayObject);
@@ -10,19 +13,20 @@ Mesh::Mesh(const std::span<const Vertex> vertices, const std::span<const unsigne glGenBuffers(2, m_vertexArrayBuffers.data());
glBindBuffer(GL_ARRAY_BUFFER, m_vertexArrayBuffers[0]);
- glBufferData(GL_ARRAY_BUFFER, sizeof(Vertex) * vertices.size(), vertices.data(), GL_STATIC_DRAW);
+ glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)(sizeof(Vertex) * vertices.size()), vertices.data(), GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
- glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void *)offsetof(Vertex, pos));
+ glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), offset_ptr(Vertex, pos));
glEnableVertexAttribArray(1);
- glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void *)offsetof(Vertex, texCoord));
+ glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), offset_ptr(Vertex, texCoord));
glEnableVertexAttribArray(2);
- glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void *)offsetof(Vertex, normal));
+ glVertexAttribPointer(2, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), offset_ptr(Vertex, normal));
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_vertexArrayBuffers[1]);
- glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices[0]) * indices.size(), indices.data(), GL_STATIC_DRAW);
+ glBufferData(
+ GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)(sizeof(indices[0]) * indices.size()), indices.data(), GL_STATIC_DRAW);
glBindVertexArray(0);
}
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