mirror of
https://github.com/joel16/VITAlbum.git
synced 2024-11-23 03:29:54 +00:00
imGui: Cleanup imgui impl
This commit is contained in:
joel16
parent
4858b3d72a
commit
2e6af3f309
@ -15,286 +15,286 @@
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#define lerp(value, from_max, to_max) ((((value * 10) * (to_max * 10)) / (from_max * 10)) / 10)
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struct ImGui_ImplVitaGL_Data {
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GLuint FontTexture = 0;
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uint64_t g_Time = 0;
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ImGui_ImplVitaGL_Data(void) {
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sceClibMemset(this, 0, sizeof(*this));
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}
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GLuint FontTexture = 0;
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uint64_t g_Time = 0;
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ImGui_ImplVitaGL_Data(void) {
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sceClibMemset(this, 0, sizeof(*this));
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}
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};
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// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
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// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
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static ImGui_ImplVitaGL_Data *ImGui_ImplVitaGL_GetBackendData(void) {
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return ImGui::GetCurrentContext() ? static_cast<ImGui_ImplVitaGL_Data *>(ImGui::GetIO().BackendRendererUserData) : nullptr;
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return ImGui::GetCurrentContext() ? static_cast<ImGui_ImplVitaGL_Data *>(ImGui::GetIO().BackendRendererUserData) : nullptr;
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}
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bool ImGui_ImplVitaGL_Init(void) {
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sceCtrlSetSamplingMode(SCE_CTRL_MODE_ANALOG_WIDE);
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ImGuiIO& io = ImGui::GetIO();
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IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
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// Setup backend capabilities flags
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ImGui_ImplVitaGL_Data *bd = IM_NEW(ImGui_ImplVitaGL_Data)();
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io.BackendRendererUserData = (void *)bd;
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io.BackendRendererName = "imgui_impl_vitagl";
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return true;
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sceCtrlSetSamplingMode(SCE_CTRL_MODE_ANALOG_WIDE);
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ImGuiIO& io = ImGui::GetIO();
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IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
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// Setup backend capabilities flags
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ImGui_ImplVitaGL_Data *bd = IM_NEW(ImGui_ImplVitaGL_Data)();
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io.BackendRendererUserData = (void *)bd;
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io.BackendRendererName = "imgui_impl_vitagl";
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return true;
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}
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void ImGui_ImplVitaGL_Shutdown(void) {
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ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
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IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
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ImGuiIO& io = ImGui::GetIO();
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ImGui_ImplVitaGL_DestroyDeviceObjects();
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io.BackendRendererName = nullptr;
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io.BackendRendererUserData = nullptr;
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IM_DELETE(bd);
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ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
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IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
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ImGuiIO& io = ImGui::GetIO();
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ImGui_ImplVitaGL_DestroyDeviceObjects();
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io.BackendRendererName = nullptr;
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io.BackendRendererUserData = nullptr;
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IM_DELETE(bd);
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}
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static void ImGui_ImplVitaGL_UpdateGamepads(void) {
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ImGuiIO& io = ImGui::GetIO();
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if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
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return;
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// Get gamepad
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io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
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SceCtrlData pad;
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sceCtrlPeekBufferPositive(0, &pad, 1);
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ImGuiIO& io = ImGui::GetIO();
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if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
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return;
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// Get gamepad
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io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
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SceCtrlData pad;
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sceCtrlPeekBufferPositive(0, &pad, 1);
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io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
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int rstick_x = (pad.rx - 127) * 256;
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int rstick_y = (pad.ry - 127) * 256;
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// Update gamepad inputs
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#define IM_SATURATE(V) (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
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#define MAP_BUTTON(KEY_NO, BUTTON_NO) { io.AddKeyEvent(KEY_NO, (pad.buttons & BUTTON_NO)); }
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#define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(AXIS_NO - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
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const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
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MAP_BUTTON(ImGuiKey_GamepadStart, SCE_CTRL_ENTER);
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MAP_BUTTON(ImGuiKey_GamepadBack, SCE_CTRL_CANCEL);
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MAP_BUTTON(ImGuiKey_GamepadFaceDown, SCE_CTRL_ENTER);
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MAP_BUTTON(ImGuiKey_GamepadFaceRight, SCE_CTRL_CANCEL);
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MAP_BUTTON(ImGuiKey_GamepadFaceLeft, SCE_CTRL_SQUARE);
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MAP_BUTTON(ImGuiKey_GamepadFaceUp, SCE_CTRL_TRIANGLE);
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MAP_BUTTON(ImGuiKey_GamepadDpadLeft, SCE_CTRL_LEFT);
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MAP_BUTTON(ImGuiKey_GamepadDpadRight, SCE_CTRL_RIGHT);
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MAP_BUTTON(ImGuiKey_GamepadDpadUp, SCE_CTRL_UP);
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MAP_BUTTON(ImGuiKey_GamepadDpadDown, SCE_CTRL_DOWN);
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MAP_BUTTON(ImGuiKey_GamepadL1, SCE_CTRL_LTRIGGER);
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MAP_BUTTON(ImGuiKey_GamepadR1, SCE_CTRL_RTRIGGER);
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MAP_ANALOG(ImGuiKey_GamepadLStickLeft, rstick_x, -thumb_dead_zone, -32768);
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MAP_ANALOG(ImGuiKey_GamepadLStickRight, rstick_x, +thumb_dead_zone, +32767);
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MAP_ANALOG(ImGuiKey_GamepadLStickUp, rstick_y, -thumb_dead_zone, -32767);
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MAP_ANALOG(ImGuiKey_GamepadLStickDown, rstick_y, +thumb_dead_zone, +32767);
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#undef MAP_BUTTON
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#undef MAP_ANALOG
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io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
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int rstick_x = (pad.rx - 127) * 256;
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int rstick_y = (pad.ry - 127) * 256;
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// Update gamepad inputs
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#define IM_SATURATE(V) (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
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#define MAP_BUTTON(KEY_NO, BUTTON_NO) { io.AddKeyEvent(KEY_NO, (pad.buttons & BUTTON_NO)); }
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#define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(AXIS_NO - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
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const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
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MAP_BUTTON(ImGuiKey_GamepadStart, SCE_CTRL_ENTER);
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MAP_BUTTON(ImGuiKey_GamepadBack, SCE_CTRL_CANCEL);
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MAP_BUTTON(ImGuiKey_GamepadFaceDown, SCE_CTRL_ENTER);
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MAP_BUTTON(ImGuiKey_GamepadFaceRight, SCE_CTRL_CANCEL);
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MAP_BUTTON(ImGuiKey_GamepadFaceLeft, SCE_CTRL_SQUARE);
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MAP_BUTTON(ImGuiKey_GamepadFaceUp, SCE_CTRL_TRIANGLE);
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MAP_BUTTON(ImGuiKey_GamepadDpadLeft, SCE_CTRL_LEFT);
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MAP_BUTTON(ImGuiKey_GamepadDpadRight, SCE_CTRL_RIGHT);
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MAP_BUTTON(ImGuiKey_GamepadDpadUp, SCE_CTRL_UP);
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MAP_BUTTON(ImGuiKey_GamepadDpadDown, SCE_CTRL_DOWN);
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MAP_BUTTON(ImGuiKey_GamepadL1, SCE_CTRL_LTRIGGER);
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MAP_BUTTON(ImGuiKey_GamepadR1, SCE_CTRL_RTRIGGER);
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MAP_ANALOG(ImGuiKey_GamepadLStickLeft, rstick_x, -thumb_dead_zone, -32768);
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MAP_ANALOG(ImGuiKey_GamepadLStickRight, rstick_x, +thumb_dead_zone, +32767);
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MAP_ANALOG(ImGuiKey_GamepadLStickUp, rstick_y, -thumb_dead_zone, -32767);
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MAP_ANALOG(ImGuiKey_GamepadLStickDown, rstick_y, +thumb_dead_zone, +32767);
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#undef MAP_BUTTON
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#undef MAP_ANALOG
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}
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void ImGui_ImplVitaGL_NewFrame(void) {
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ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
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IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplVitaGL_Init()?");
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if (!bd->FontTexture)
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ImGui_ImplVitaGL_CreateDeviceObjects();
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ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
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IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplVitaGL_Init()?");
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if (!bd->FontTexture)
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ImGui_ImplVitaGL_CreateDeviceObjects();
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ImGuiIO& io = ImGui::GetIO();
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// Setup display size (every frame to accommodate for window resizing)
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int w = 0, h = 0;
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int display_w = 0, display_h = 0;
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GLint viewport[4];
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glGetIntegerv(GL_VIEWPORT, viewport);
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w = display_w = viewport[2];
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h = display_h = viewport[3];
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io.DisplaySize = ImVec2(static_cast<float>(w), static_cast<float>(h));
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if (w > 0 && h > 0)
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io.DisplayFramebufferScale = ImVec2(static_cast<float>(display_w / w),static_cast<float>(display_h) / h);
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static uint64_t frequency = 1000000;
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uint64_t current_time = sceKernelGetProcessTimeWide();
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io.DeltaTime = bd->g_Time > 0 ? static_cast<float>(static_cast<double>((current_time - bd->g_Time)) / frequency) : static_cast<float>(1.0f / 60.0f);
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bd->g_Time = current_time;
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ImGui_ImplVitaGL_UpdateGamepads();
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ImGuiIO& io = ImGui::GetIO();
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// Setup display size (every frame to accommodate for window resizing)
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int w = 0, h = 0;
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int display_w = 0, display_h = 0;
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GLint viewport[4];
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glGetIntegerv(GL_VIEWPORT, viewport);
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w = display_w = viewport[2];
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h = display_h = viewport[3];
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io.DisplaySize = ImVec2(static_cast<float>(w), static_cast<float>(h));
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if (w > 0 && h > 0)
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io.DisplayFramebufferScale = ImVec2(static_cast<float>(display_w / w),static_cast<float>(display_h) / h);
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static uint64_t frequency = 1000000;
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uint64_t current_time = sceKernelGetProcessTimeWide();
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io.DeltaTime = bd->g_Time > 0 ? static_cast<float>(static_cast<double>((current_time - bd->g_Time)) / frequency) : static_cast<float>(1.0f / 60.0f);
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bd->g_Time = current_time;
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ImGui_ImplVitaGL_UpdateGamepads();
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}
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static void ImGui_ImplVitaGL_SetupRenderState(ImDrawData *draw_data, int fb_width, int fb_height) {
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// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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//glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); // In order to composite our output buffer we need to preserve alpha
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glDisable(GL_STENCIL_TEST);
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glDisable(GL_LIGHTING);
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glDisable(GL_COLOR_MATERIAL);
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glEnable(GL_SCISSOR_TEST);
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glEnableClientState(GL_VERTEX_ARRAY);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glEnableClientState(GL_COLOR_ARRAY);
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glDisableClientState(GL_NORMAL_ARRAY);
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glEnable(GL_TEXTURE_2D);
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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glShadeModel(GL_SMOOTH);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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// If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
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// you may need to backup/reset/restore other state, e.g. for current shader using the commented lines below.
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// (DO NOT MODIFY THIS FILE! Add the code in your calling function)
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// GLint last_program;
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// glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
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// glUseProgram(0);
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// ImGui_ImplVitaGL_RenderDrawData(...);
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// glUseProgram(last_program)
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// There are potentially many more states you could need to clear/setup that we can't access from default headers.
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// e.g. glBindBuffer(GL_ARRAY_BUFFER, 0), glDisable(GL_TEXTURE_CUBE_MAP).
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// Setup viewport, orthographic projection matrix
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// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
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glViewport(0, 0, static_cast<GLsizei>(fb_width), static_cast<GLsizei>(fb_height));
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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glOrtho(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x, draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f, +1.0f);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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//glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); // In order to composite our output buffer we need to preserve alpha
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glDisable(GL_STENCIL_TEST);
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glDisable(GL_LIGHTING);
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glDisable(GL_COLOR_MATERIAL);
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glEnable(GL_SCISSOR_TEST);
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glEnableClientState(GL_VERTEX_ARRAY);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glEnableClientState(GL_COLOR_ARRAY);
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glDisableClientState(GL_NORMAL_ARRAY);
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glEnable(GL_TEXTURE_2D);
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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glShadeModel(GL_SMOOTH);
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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// If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
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// you may need to backup/reset/restore other state, e.g. for current shader using the commented lines below.
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// (DO NOT MODIFY THIS FILE! Add the code in your calling function)
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// GLint last_program;
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// glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
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// glUseProgram(0);
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// ImGui_ImplVitaGL_RenderDrawData(...);
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// glUseProgram(last_program)
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// There are potentially many more states you could need to clear/setup that we can't access from default headers.
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// e.g. glBindBuffer(GL_ARRAY_BUFFER, 0), glDisable(GL_TEXTURE_CUBE_MAP).
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// Setup viewport, orthographic projection matrix
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// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
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glViewport(0, 0, static_cast<GLsizei>(fb_width), static_cast<GLsizei>(fb_height));
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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glOrtho(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x, draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f, +1.0f);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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}
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// OpenGL2 Render function.
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// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
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// This is in order to be able to run within an OpenGL engine that doesn't do so.
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void ImGui_ImplVitaGL_RenderDrawData(ImDrawData *draw_data) {
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// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
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int fb_width = static_cast<int>(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
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int fb_height = static_cast<int>(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
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if (fb_width == 0 || fb_height == 0)
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return;
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// Backup GL state
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GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
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GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
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GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
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//GLint last_shade_model; glGetIntegerv(GL_SHADE_MODEL, &last_shade_model);
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GLint last_tex_env_mode; glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &last_tex_env_mode);
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glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
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// Setup desired GL state
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ImGui_ImplVitaGL_SetupRenderState(draw_data, fb_width, fb_height);
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// Will project scissor/clipping rectangles into framebuffer space
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ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
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ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
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// Render command lists
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for (int n = 0; n < draw_data->CmdListsCount; n++) {
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const ImDrawList *cmd_list = draw_data->CmdLists[n];
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const ImDrawVert *vtx_buffer = cmd_list->VtxBuffer.Data;
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const ImDrawIdx *idx_buffer = cmd_list->IdxBuffer.Data;
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glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), reinterpret_cast<const GLvoid *>(reinterpret_cast<const char *>(vtx_buffer) + IM_OFFSETOF(ImDrawVert, pos)));
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glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), reinterpret_cast<const GLvoid *>(reinterpret_cast<const char *>(vtx_buffer) + IM_OFFSETOF(ImDrawVert, uv)));
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glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), reinterpret_cast<const GLvoid *>(reinterpret_cast<const char *>(vtx_buffer) + IM_OFFSETOF(ImDrawVert, col)));
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for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) {
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const ImDrawCmd *pcmd = &cmd_list->CmdBuffer[cmd_i];
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if (pcmd->UserCallback) {
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// User callback, registered via ImDrawList::AddCallback()
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// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
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if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
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ImGui_ImplVitaGL_SetupRenderState(draw_data, fb_width, fb_height);
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else
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pcmd->UserCallback(cmd_list, pcmd);
|
||||
}
|
||||
else {
|
||||
// Project scissor/clipping rectangles into framebuffer space
|
||||
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
|
||||
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;
|
||||
|
||||
// Apply scissor/clipping rectangle (Y is inverted in OpenGL)
|
||||
glScissor(static_cast<int>(clip_min.x), static_cast<int>(static_cast<int>(fb_height) - clip_max.y), static_cast<int>(clip_max.x - clip_min.x), static_cast<int>(clip_max.y - clip_min.y));
|
||||
|
||||
// Bind texture, Draw
|
||||
glBindTexture(GL_TEXTURE_2D, reinterpret_cast<GLuint>(pcmd->GetTexID()));
|
||||
glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(pcmd->ElemCount), sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Restore modified GL state
|
||||
glDisableClientState(GL_COLOR_ARRAY);
|
||||
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
||||
glDisableClientState(GL_VERTEX_ARRAY);
|
||||
glBindTexture(GL_TEXTURE_2D, static_cast<GLuint>(last_texture));
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glPopMatrix();
|
||||
glMatrixMode(GL_PROJECTION);
|
||||
glPopMatrix();
|
||||
glPopAttrib();
|
||||
glPolygonMode(GL_FRONT, static_cast<GLenum>(last_polygon_mode[0])); glPolygonMode(GL_BACK, static_cast<GLenum>(last_polygon_mode[1]));
|
||||
glViewport(last_viewport[0], last_viewport[1], static_cast<GLsizei>(last_viewport[2]), static_cast<GLsizei>(last_viewport[3]));
|
||||
glScissor(last_scissor_box[0], last_scissor_box[1], static_cast<GLsizei>(last_scissor_box[2]), static_cast<GLsizei>(last_scissor_box[3]));
|
||||
//glShadeModel(last_shade_model);
|
||||
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, last_tex_env_mode);
|
||||
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
|
||||
int fb_width = static_cast<int>(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
|
||||
int fb_height = static_cast<int>(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
|
||||
if (fb_width == 0 || fb_height == 0)
|
||||
return;
|
||||
|
||||
// Backup GL state
|
||||
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
|
||||
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
|
||||
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
|
||||
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
|
||||
//GLint last_shade_model; glGetIntegerv(GL_SHADE_MODEL, &last_shade_model);
|
||||
GLint last_tex_env_mode; glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &last_tex_env_mode);
|
||||
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
|
||||
|
||||
// Setup desired GL state
|
||||
ImGui_ImplVitaGL_SetupRenderState(draw_data, fb_width, fb_height);
|
||||
|
||||
// Will project scissor/clipping rectangles into framebuffer space
|
||||
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
|
||||
ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
|
||||
|
||||
// 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;
|
||||
glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), reinterpret_cast<const GLvoid *>(reinterpret_cast<const char *>(vtx_buffer) + IM_OFFSETOF(ImDrawVert, pos)));
|
||||
glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), reinterpret_cast<const GLvoid *>(reinterpret_cast<const char *>(vtx_buffer) + IM_OFFSETOF(ImDrawVert, uv)));
|
||||
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), reinterpret_cast<const GLvoid *>(reinterpret_cast<const char *>(vtx_buffer) + IM_OFFSETOF(ImDrawVert, col)));
|
||||
|
||||
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) {
|
||||
const ImDrawCmd *pcmd = &cmd_list->CmdBuffer[cmd_i];
|
||||
if (pcmd->UserCallback) {
|
||||
// User callback, registered via ImDrawList::AddCallback()
|
||||
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
|
||||
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
|
||||
ImGui_ImplVitaGL_SetupRenderState(draw_data, fb_width, fb_height);
|
||||
else
|
||||
pcmd->UserCallback(cmd_list, pcmd);
|
||||
}
|
||||
else {
|
||||
// Project scissor/clipping rectangles into framebuffer space
|
||||
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
|
||||
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;
|
||||
|
||||
// Apply scissor/clipping rectangle (Y is inverted in OpenGL)
|
||||
glScissor(static_cast<int>(clip_min.x), static_cast<int>(static_cast<float>(fb_height) - clip_max.y), static_cast<int>(clip_max.x - clip_min.x), static_cast<int>(clip_max.y - clip_min.y));
|
||||
|
||||
// Bind texture, Draw
|
||||
glBindTexture(GL_TEXTURE_2D, reinterpret_cast<GLuint>(pcmd->GetTexID()));
|
||||
glDrawElements(GL_TRIANGLES, static_cast<GLsizei>(pcmd->ElemCount), sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer + pcmd->IdxOffset);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Restore modified GL state
|
||||
glDisableClientState(GL_COLOR_ARRAY);
|
||||
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
||||
glDisableClientState(GL_VERTEX_ARRAY);
|
||||
glBindTexture(GL_TEXTURE_2D, static_cast<GLuint>(last_texture));
|
||||
glMatrixMode(GL_MODELVIEW);
|
||||
glPopMatrix();
|
||||
glMatrixMode(GL_PROJECTION);
|
||||
glPopMatrix();
|
||||
glPopAttrib();
|
||||
glPolygonMode(GL_FRONT, static_cast<GLenum>(last_polygon_mode[0])); glPolygonMode(GL_BACK, static_cast<GLenum>(last_polygon_mode[1]));
|
||||
glViewport(last_viewport[0], last_viewport[1], static_cast<GLsizei>(last_viewport[2]), static_cast<GLsizei>(last_viewport[3]));
|
||||
glScissor(last_scissor_box[0], last_scissor_box[1], static_cast<GLsizei>(last_scissor_box[2]), static_cast<GLsizei>(last_scissor_box[3]));
|
||||
//glShadeModel(last_shade_model);
|
||||
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, last_tex_env_mode);
|
||||
}
|
||||
|
||||
bool ImGui_ImplVitaGL_CreateFontsTexture(void) {
|
||||
// Build texture atlas
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
|
||||
unsigned char *pixels = nullptr;
|
||||
int width = 0, height = 0;
|
||||
// Build texture atlas
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
|
||||
unsigned char *pixels = nullptr;
|
||||
int width = 0, height = 0;
|
||||
|
||||
ImFontConfig font_config;
|
||||
font_config.OversampleH = 1;
|
||||
font_config.OversampleV = 1;
|
||||
font_config.PixelSnapH = 1;
|
||||
|
||||
io.Fonts->AddFontFromFileTTF("sa0:/data/font/pvf/jpn0.pvf", 20.0f, &font_config, io.Fonts->GetGlyphRangesJapanese());
|
||||
io.Fonts->GetTexDataAsRGBA32(static_cast<unsigned char **>(&pixels), &width, &height);
|
||||
ImFontConfig font_config;
|
||||
font_config.OversampleH = 1;
|
||||
font_config.OversampleV = 1;
|
||||
font_config.PixelSnapH = 1;
|
||||
|
||||
io.Fonts->AddFontFromFileTTF("sa0:/data/font/pvf/jpn0.pvf", 20.0f, &font_config, io.Fonts->GetGlyphRangesJapanese());
|
||||
io.Fonts->GetTexDataAsRGBA32(static_cast<unsigned char **>(&pixels), &width, &height);
|
||||
|
||||
// Upload texture to graphics system
|
||||
GLint last_texture;
|
||||
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
|
||||
glGenTextures(1, &bd->FontTexture);
|
||||
glBindTexture(GL_TEXTURE_2D, bd->FontTexture);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
|
||||
|
||||
// Store our identifier
|
||||
io.Fonts->SetTexID(reinterpret_cast<ImTextureID>(bd->FontTexture));
|
||||
|
||||
// Restore state
|
||||
glBindTexture(GL_TEXTURE_2D, last_texture);
|
||||
return true;
|
||||
// Upload texture to graphics system
|
||||
GLint last_texture;
|
||||
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
|
||||
glGenTextures(1, &bd->FontTexture);
|
||||
glBindTexture(GL_TEXTURE_2D, bd->FontTexture);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
||||
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
||||
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
||||
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
|
||||
|
||||
// Store our identifier
|
||||
io.Fonts->SetTexID(reinterpret_cast<ImTextureID>(bd->FontTexture));
|
||||
|
||||
// Restore state
|
||||
glBindTexture(GL_TEXTURE_2D, last_texture);
|
||||
return true;
|
||||
}
|
||||
|
||||
void ImGui_ImplVitaGL_DestroyFontsTexture(void) {
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
|
||||
|
||||
if (bd->FontTexture) {
|
||||
glDeleteTextures(1, &bd->FontTexture);
|
||||
io.Fonts->SetTexID(0);
|
||||
bd->FontTexture = 0;
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
ImGui_ImplVitaGL_Data *bd = ImGui_ImplVitaGL_GetBackendData();
|
||||
|
||||
if (bd->FontTexture) {
|
||||
glDeleteTextures(1, &bd->FontTexture);
|
||||
io.Fonts->SetTexID(0);
|
||||
bd->FontTexture = 0;
|
||||
}
|
||||
}
|
||||
|
||||
bool ImGui_ImplVitaGL_CreateDeviceObjects(void) {
|
||||
return ImGui_ImplVitaGL_CreateFontsTexture();
|
||||
return ImGui_ImplVitaGL_CreateFontsTexture();
|
||||
}
|
||||
|
||||
void ImGui_ImplVitaGL_DestroyDeviceObjects(void) {
|
||||
ImGui_ImplVitaGL_DestroyFontsTexture();
|
||||
ImGui_ImplVitaGL_DestroyFontsTexture();
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user