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Small optimisation

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This commit is contained in:
Luke Benstead 2021-09-13 19:57:46 +01:00
parent 4ee9c3ee64
commit 9c2907e41d
1 changed files with 9 additions and 6 deletions
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15
GL/immediate.c
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@ -152,14 +152,17 @@ void APIENTRY glColor3fv(const GLfloat* v) {
void APIENTRY glVertex3f(GLfloat x, GLfloat y, GLfloat z) {
IM_ENABLED_VERTEX_ATTRIBUTES |= VERTEX_ENABLED_FLAG;
unsigned int cap = VERTICES.capacity;
IMVertex* vert = aligned_vector_extend(&VERTICES, 1);
/* Resizing could've invalidated the pointers */
IM_ATTRIBS.vertex.ptr = VERTICES.data;
IM_ATTRIBS.uv.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 3);
IM_ATTRIBS.st.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 5);
IM_ATTRIBS.colour.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 7);
IM_ATTRIBS.normal.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 7) + sizeof(uint32_t);
if(cap != VERTICES.capacity) {
/* Resizing could've invalidated the pointers */
IM_ATTRIBS.vertex.ptr = VERTICES.data;
IM_ATTRIBS.uv.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 3);
IM_ATTRIBS.st.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 5);
IM_ATTRIBS.colour.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 7);
IM_ATTRIBS.normal.ptr = IM_ATTRIBS.vertex.ptr + (sizeof(GLfloat) * 7) + sizeof(uint32_t);
}
vert->x = x;
vert->y = y;