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Tidying up example applications

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This commit is contained in:
ocornut
2014-08-11 17:46:54 +01:00
parent 4020ef7b58
commit 98a000055e
2 changed files with 36 additions and 51 deletions
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26
examples/directx9_example/main.cpp
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@ -83,45 +83,37 @@ static void ImImpl_RenderDrawLists(ImDrawList** const cmd_lists, int cmd_lists_c
g_pd3dDevice->SetTransform(D3DTS_PROJECTION, &mat);
// Render command lists
int vtx_consumed = 0; // offset in vertex buffer. each command consume ImDrawCmd::vtx_count of those
int vtx_offset = 0;
for (int n = 0; n < cmd_lists_count; n++)
{
const ImDrawList* cmd_list = cmd_lists[n];
// Setup stack of clipping rectangles
bool clip_rect_dirty = true;
int clip_rect_buf_consumed = 0;
int clip_rect_buf_offset = 0;
ImVector<ImVec4> clip_rect_stack;
clip_rect_stack.push_back(ImVec4(-9999,-9999,+9999,+9999));
// Render command list
const ImDrawCmd* pcmd = &cmd_list->commands.front();
const ImDrawCmd* pcmd_end = &cmd_list->commands.back();
while (pcmd <= pcmd_end)
const ImDrawList* cmd_list = cmd_lists[n];
const ImDrawCmd* pcmd_end = cmd_list->commands.end();
for (const ImDrawCmd* pcmd = cmd_list->commands.begin(); pcmd != pcmd_end; pcmd++)
{
const ImDrawCmd& cmd = *pcmd++;
switch (cmd.cmd_type)
switch (pcmd->cmd_type)
{
case ImDrawCmdType_DrawTriangleList:
if (clip_rect_dirty)
{
const ImVec4& clip_rect = clip_rect_stack.back();
const RECT r = { (LONG)clip_rect.x, (LONG)clip_rect.y, (LONG)clip_rect.z, (LONG)clip_rect.w };
g_pd3dDevice->SetScissorRect(&r);
clip_rect_dirty = false;
g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, vtx_offset, pcmd->vtx_count/3);
vtx_offset += pcmd->vtx_count;
}
g_pd3dDevice->DrawPrimitive(D3DPT_TRIANGLELIST, vtx_consumed, cmd.vtx_count/3);
vtx_consumed += cmd.vtx_count;
break;
case ImDrawCmdType_PushClipRect:
clip_rect_stack.push_back(cmd_list->clip_rect_buffer[clip_rect_buf_consumed++]);
clip_rect_dirty = true;
clip_rect_stack.push_back(cmd_list->clip_rect_buffer[clip_rect_buf_offset++]);
break;
case ImDrawCmdType_PopClipRect:
clip_rect_stack.pop_back();
clip_rect_dirty = true;
break;
}
}