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GL: Reworked Buffer (re)creation

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korenkonder
2025-11-14 01:13:36 +03:00
parent 1bf057dc89
commit 5fabbbbcd4
14 changed files with 325 additions and 166 deletions
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src/CRE/object.cpp
+12 -11
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@@ -29,7 +29,7 @@ struct BufObjMgr {
};
static GLuint create_index_buffer(size_t size, const void* data);
static GLuint create_vertex_buffer(size_t size, const void* data, bool dynamic = false);
static GLuint create_vertex_buffer(size_t size, const void* data, GL::BufferUsage usage = GL::BUFFER_USAGE_STATIC);
static void free_index_buffer(GLuint buffer);
static void free_vertex_buffer(GLuint buffer);
@@ -171,7 +171,7 @@ GLsizeiptr obj_mesh_vertex_buffer::get_size() {
return 0;
}
bool obj_mesh_vertex_buffer::load(obj_mesh& mesh, bool dynamic) {
bool obj_mesh_vertex_buffer::load(obj_mesh& mesh, GL::BufferUsage usage) {
if (!mesh.num_vertex || !mesh.vertex_array)
return false;
@@ -194,12 +194,12 @@ bool obj_mesh_vertex_buffer::load(obj_mesh& mesh, bool dynamic) {
mesh.size_vertex = size_vertex;
bool ret = load_data((size_t)size_vertex * mesh.num_vertex,
vertex, mesh.attrib.m.double_buffer ? 2 : 1, dynamic);
vertex, mesh.attrib.m.double_buffer ? 2 : 1, usage);
free_def(vertex);
return ret;
}
bool obj_mesh_vertex_buffer::load_data(size_t size, const void* data, int32_t count, bool dynamic) {
bool obj_mesh_vertex_buffer::load_data(size_t size, const void* data, int32_t count, GL::BufferUsage usage) {
if (!size || count > 3)
return false;
@@ -210,7 +210,7 @@ bool obj_mesh_vertex_buffer::load_data(size_t size, const void* data, int32_t co
#endif
for (int32_t i = 0; i < count; i++) {
buffers[i] = create_vertex_buffer(size, data, dynamic);
buffers[i] = create_vertex_buffer(size, data, usage);
if (!buffers[i]) {
unload();
return false;
@@ -2433,16 +2433,17 @@ static GLuint create_index_buffer(size_t size, const void* data) {
return buffer;
}
static GLuint create_vertex_buffer(size_t size, const void* data, bool dynamic) {
static GLuint create_vertex_buffer(size_t size, const void* data, GL::BufferUsage usage) {
GLuint buffer = 0;
glGenBuffers(1, &buffer);
gl_state.bind_array_buffer(buffer);
if (GLAD_GL_VERSION_4_4)
glBufferStorage(GL_ARRAY_BUFFER, (GLsizeiptr)size, data,
dynamic ? GL_DYNAMIC_STORAGE_BIT | GL_MAP_WRITE_BIT : 0);
if (GLAD_GL_VERSION_4_4 && usage != GL::BUFFER_USAGE_STREAM) {
GLbitfield flags = usage == GL::BUFFER_USAGE_DYNAMIC
? GL_DYNAMIC_STORAGE_BIT | GL_MAP_WRITE_BIT : 0;
glBufferStorage(GL_ARRAY_BUFFER, (GLsizeiptr)size, data, flags);
}
else
glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)size, data,
dynamic ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)size, data, BufferUsageToGLenum(usage));
gl_state.bind_array_buffer(0);
if (glGetError()) {