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ENABLE_GL_IMGUI_SHADERS - Fixes in ImGuiWrapper::render_draw_data()

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enricoturri1966 2022-03-21 11:31:32 +01:00
parent 8ce9241c48
commit 4964d6ecd5
1 changed files with 13 additions and 15 deletions
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28
src/slic3r/GUI/ImGuiWrapper.cpp
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@ -1528,19 +1528,15 @@ void ImGuiWrapper::render_draw_data(ImDrawData *draw_data)
glsafe(::glLoadIdentity());
#endif // ENABLE_GL_IMGUI_SHADERS
#if ENABLE_GL_IMGUI_SHADERS
// Will project scissor/clipping rectangles into framebuffer space
const ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
const ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
const ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
#else
const ImVec2 pos = draw_data->DisplayPos;
#endif // ENABLE_GL_IMGUI_SHADERS
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; ++n) {
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
#if ENABLE_GL_IMGUI_SHADERS
const GLsizeiptr vtx_buffer_size = (GLsizeiptr)cmd_list->VtxBuffer.Size * (int)sizeof(ImDrawVert);
const GLsizeiptr idx_buffer_size = (GLsizeiptr)cmd_list->IdxBuffer.Size * (int)sizeof(ImDrawIdx);
@ -1596,18 +1592,20 @@ void ImGuiWrapper::render_draw_data(ImDrawData *draw_data)
glsafe(::glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID()));
glsafe(::glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx))));
#else
const ImVec4 clip_rect = ImVec4(pcmd->ClipRect.x - pos.x, pcmd->ClipRect.y - pos.y, pcmd->ClipRect.z - pos.x, pcmd->ClipRect.w - pos.y);
if (clip_rect.x < fb_width && clip_rect.y < fb_height && clip_rect.z >= 0.0f && clip_rect.w >= 0.0f) {
// Apply scissor/clipping rectangle
glsafe(::glScissor((int)clip_rect.x, (int)(fb_height - clip_rect.w), (int)(clip_rect.z - clip_rect.x), (int)(clip_rect.w - clip_rect.y)));
// Project scissor/clipping rectangles into framebuffer space
const ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
const ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
continue;
// Bind texture, Draw
glsafe(::glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID()));
glsafe(::glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx))));
}
// Apply scissor/clipping rectangle (Y is inverted in OpenGL)
glsafe(::glScissor((int)clip_min.x, (int)(fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y)));
// Bind texture, Draw
glsafe(::glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID()));
glsafe(::glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset));
#endif // ENABLE_GL_IMGUI_SHADERS
}
idx_buffer += pcmd->ElemCount;
}
#if ENABLE_GL_IMGUI_SHADERS