void TBBitmapGL::SetData(uint32 *data)
{
m_renderer->FlushBitmap(this);
BindBitmap(this);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_w, m_h, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
TB_IF_DEBUG_SETTING(RENDER_BATCHES, dbg_bitmap_validations++);
}
UIBitmapGL::~UIBitmapGL() {
m_renderer->FlushBitmap(this);
if (m_texture == g_current_texture)
BindBitmap(nullptr);
glDeleteTextures(1, &m_texture);
}
TBBitmapGL::~TBBitmapGL()
{
// Must flush and unbind before we delete the texture
m_renderer->FlushBitmap(this);
if (m_texture == g_current_texture)
BindBitmap(nullptr);
glDeleteTextures(1, &m_texture);
}
void UIRendererGL::RenderBatch(Batch *batch) {
BindBitmap(batch->bitmap);
if (g_current_batch != batch) {
g_current_batch = batch;
}
glBindBuffer(GL_ARRAY_BUFFER, _buffer);
glBufferData(GL_ARRAY_BUFFER, sizeof(Vertex) * batch->vertex_count, batch->vertex, GL_STATIC_DRAW);
glVertexAttribPointer(_shader.enableVertexAttribute("a_color"), 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(Vertex), GL_OFFSET(offsetof(Batch, vertex[0].col)));
glVertexAttribPointer(_shader.enableVertexAttribute("a_texcoord"), 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), GL_OFFSET(offsetof(Batch, vertex[0].u)));
glVertexAttribPointer(_shader.enableVertexAttribute("a_pos"), 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), GL_OFFSET(offsetof(Batch, vertex[0].x)));
glDrawArrays(GL_TRIANGLES, 0, batch->vertex_count);
GL_checkError();
}
void TBRendererGL::RenderBatch(Batch *batch)
{
// Bind texture and array pointers
BindBitmap(batch->bitmap);
if (g_current_batch != batch)
{
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(Vertex), (void *) &batch->vertex[0].r);
glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), (void *) &batch->vertex[0].u);
glVertexPointer(2, GL_FLOAT, sizeof(Vertex), (void *) &batch->vertex[0].x);
g_current_batch = batch;
}
// Flush
glDrawArrays(GL_TRIANGLES, 0, batch->vertex_count);
}
bool TBBitmapGL::Init(int width, int height, uint32 *data)
{
assert(width == TBGetNearestPowerOfTwo(width));
assert(height == TBGetNearestPowerOfTwo(height));
m_w = width;
m_h = height;
glGenTextures(1, &m_texture);
BindBitmap(this);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
SetData(data);
return true;
}
