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PABannier merged 1 commit into from
Sep 16, 2026
Merged

refactor: share GUI helpers between image and video examples #18

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88 changes: 88 additions & 0 deletions examples/common.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,88 @@
// Shared GUI helpers for the sam3_image and sam3_video examples.
#pragma once

#include <SDL.h>
#include <SDL_opengl.h>

#include <imgui.h>

#include <cstdint>
#include <string>

static const float INSTANCE_COLORS[][3] = {
{1.0f, 0.2f, 0.2f}, {0.2f, 0.6f, 1.0f}, {0.2f, 0.9f, 0.3f},
{1.0f, 0.8f, 0.1f}, {0.8f, 0.3f, 0.9f}, {1.0f, 0.5f, 0.1f},
{0.1f, 0.9f, 0.9f}, {0.9f, 0.4f, 0.6f}, {0.5f, 0.8f, 0.2f},
{0.3f, 0.3f, 1.0f}, {1.0f, 0.6f, 0.7f}, {0.6f, 1.0f, 0.5f},
};
static constexpr int N_COLORS = sizeof(INSTANCE_COLORS) / sizeof(INSTANCE_COLORS[0]);

static std::string basename_of(const std::string& path) {
auto pos = path.find_last_of("/\\");
return (pos == std::string::npos) ? path : path.substr(pos + 1);
}

static void apply_theme() {
ImGuiStyle& s = ImGui::GetStyle();
s.WindowRounding = 6.0f;
s.FrameRounding = 4.0f;
s.GrabRounding = 3.0f;
s.ScrollbarRounding = 4.0f;
s.TabRounding = 4.0f;
s.ChildRounding = 4.0f;
s.PopupRounding = 4.0f;
s.FramePadding = ImVec2(6, 4);
s.ItemSpacing = ImVec2(8, 5);
s.WindowPadding = ImVec2(10, 10);
s.FrameBorderSize = 0.0f;
s.WindowBorderSize = 0.0f;
s.ScrollbarSize = 12.0f;

ImVec4* c = s.Colors;
c[ImGuiCol_WindowBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_ChildBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_PopupBg] = ImVec4(0.10f, 0.10f, 0.13f, 0.96f);
c[ImGuiCol_Border] = ImVec4(0.20f, 0.20f, 0.25f, 0.50f);
c[ImGuiCol_FrameBg] = ImVec4(0.14f, 0.14f, 0.18f, 1.00f);
c[ImGuiCol_FrameBgHovered] = ImVec4(0.22f, 0.22f, 0.28f, 1.00f);
c[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.26f, 0.34f, 1.00f);
c[ImGuiCol_TitleBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_TitleBgActive] = ImVec4(0.12f, 0.12f, 0.16f, 1.00f);
c[ImGuiCol_MenuBarBg] = ImVec4(0.10f, 0.10f, 0.13f, 1.00f);
c[ImGuiCol_ScrollbarBg] = ImVec4(0.06f, 0.06f, 0.08f, 0.60f);
c[ImGuiCol_ScrollbarGrab] = ImVec4(0.28f, 0.28f, 0.34f, 1.00f);
c[ImGuiCol_ScrollbarGrabHovered]= ImVec4(0.36f, 0.36f, 0.42f, 1.00f);
c[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.40f, 0.40f, 0.50f, 1.00f);
c[ImGuiCol_CheckMark] = ImVec4(0.45f, 0.60f, 1.00f, 1.00f);
c[ImGuiCol_SliderGrab] = ImVec4(0.38f, 0.52f, 0.90f, 1.00f);
c[ImGuiCol_SliderGrabActive] = ImVec4(0.50f, 0.64f, 1.00f, 1.00f);
c[ImGuiCol_Button] = ImVec4(0.18f, 0.20f, 0.28f, 1.00f);
c[ImGuiCol_ButtonHovered] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_ButtonActive] = ImVec4(0.36f, 0.40f, 0.56f, 1.00f);
c[ImGuiCol_Header] = ImVec4(0.18f, 0.20f, 0.28f, 1.00f);
c[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.30f, 0.42f, 1.00f);
c[ImGuiCol_HeaderActive] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_Separator] = ImVec4(0.22f, 0.22f, 0.28f, 1.00f);
c[ImGuiCol_SeparatorHovered] = ImVec4(0.36f, 0.42f, 0.60f, 1.00f);
c[ImGuiCol_SeparatorActive] = ImVec4(0.42f, 0.50f, 0.70f, 1.00f);
c[ImGuiCol_ResizeGrip] = ImVec4(0.30f, 0.36f, 0.52f, 0.50f);
c[ImGuiCol_ResizeGripHovered] = ImVec4(0.40f, 0.48f, 0.68f, 0.70f);
c[ImGuiCol_ResizeGripActive] = ImVec4(0.46f, 0.54f, 0.76f, 0.90f);
c[ImGuiCol_Tab] = ImVec4(0.14f, 0.14f, 0.18f, 1.00f);
c[ImGuiCol_TabHovered] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_TabSelected] = ImVec4(0.22f, 0.26f, 0.38f, 1.00f);
c[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.36f, 0.56f, 0.50f);
c[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.94f, 1.00f);
c[ImGuiCol_TextDisabled] = ImVec4(0.44f, 0.44f, 0.50f, 1.00f);
}

static GLuint upload_texture(const uint8_t* data, int w, int h, int ch, GLuint existing = 0) {
GLuint tex = existing;
if (!tex) glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GLenum fmt = (ch == 4) ? GL_RGBA : GL_RGB;
glTexImage2D(GL_TEXTURE_2D, 0, fmt, w, h, 0, fmt, GL_UNSIGNED_BYTE, data);
return tex;
}
80 changes: 1 addition & 79 deletions examples/main_image.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -29,74 +29,7 @@
#include <string>
#include <vector>

// ── Helpers ──────────────────────────────────────────────────────────────────

static const float INSTANCE_COLORS[][3] = {
{1.0f, 0.2f, 0.2f}, {0.2f, 0.6f, 1.0f}, {0.2f, 0.9f, 0.3f},
{1.0f, 0.8f, 0.1f}, {0.8f, 0.3f, 0.9f}, {1.0f, 0.5f, 0.1f},
{0.1f, 0.9f, 0.9f}, {0.9f, 0.4f, 0.6f}, {0.5f, 0.8f, 0.2f},
{0.3f, 0.3f, 1.0f}, {1.0f, 0.6f, 0.7f}, {0.6f, 1.0f, 0.5f},
};
static constexpr int N_COLORS = sizeof(INSTANCE_COLORS) / sizeof(INSTANCE_COLORS[0]);

static std::string basename_of(const std::string& path) {
auto pos = path.find_last_of("/\\");
return (pos == std::string::npos) ? path : path.substr(pos + 1);
}

static void apply_theme() {
ImGuiStyle& s = ImGui::GetStyle();
s.WindowRounding = 6.0f;
s.FrameRounding = 4.0f;
s.GrabRounding = 3.0f;
s.ScrollbarRounding = 4.0f;
s.TabRounding = 4.0f;
s.ChildRounding = 4.0f;
s.PopupRounding = 4.0f;
s.FramePadding = ImVec2(6, 4);
s.ItemSpacing = ImVec2(8, 5);
s.WindowPadding = ImVec2(10, 10);
s.FrameBorderSize = 0.0f;
s.WindowBorderSize = 0.0f;
s.ScrollbarSize = 12.0f;

ImVec4* c = s.Colors;
c[ImGuiCol_WindowBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_ChildBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_PopupBg] = ImVec4(0.10f, 0.10f, 0.13f, 0.96f);
c[ImGuiCol_Border] = ImVec4(0.20f, 0.20f, 0.25f, 0.50f);
c[ImGuiCol_FrameBg] = ImVec4(0.14f, 0.14f, 0.18f, 1.00f);
c[ImGuiCol_FrameBgHovered] = ImVec4(0.22f, 0.22f, 0.28f, 1.00f);
c[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.26f, 0.34f, 1.00f);
c[ImGuiCol_TitleBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_TitleBgActive] = ImVec4(0.12f, 0.12f, 0.16f, 1.00f);
c[ImGuiCol_MenuBarBg] = ImVec4(0.10f, 0.10f, 0.13f, 1.00f);
c[ImGuiCol_ScrollbarBg] = ImVec4(0.06f, 0.06f, 0.08f, 0.60f);
c[ImGuiCol_ScrollbarGrab] = ImVec4(0.28f, 0.28f, 0.34f, 1.00f);
c[ImGuiCol_ScrollbarGrabHovered]= ImVec4(0.36f, 0.36f, 0.42f, 1.00f);
c[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.40f, 0.40f, 0.50f, 1.00f);
c[ImGuiCol_CheckMark] = ImVec4(0.45f, 0.60f, 1.00f, 1.00f);
c[ImGuiCol_SliderGrab] = ImVec4(0.38f, 0.52f, 0.90f, 1.00f);
c[ImGuiCol_SliderGrabActive] = ImVec4(0.50f, 0.64f, 1.00f, 1.00f);
c[ImGuiCol_Button] = ImVec4(0.18f, 0.20f, 0.28f, 1.00f);
c[ImGuiCol_ButtonHovered] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_ButtonActive] = ImVec4(0.36f, 0.40f, 0.56f, 1.00f);
c[ImGuiCol_Header] = ImVec4(0.18f, 0.20f, 0.28f, 1.00f);
c[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.30f, 0.42f, 1.00f);
c[ImGuiCol_HeaderActive] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_Separator] = ImVec4(0.22f, 0.22f, 0.28f, 1.00f);
c[ImGuiCol_SeparatorHovered] = ImVec4(0.36f, 0.42f, 0.60f, 1.00f);
c[ImGuiCol_SeparatorActive] = ImVec4(0.42f, 0.50f, 0.70f, 1.00f);
c[ImGuiCol_ResizeGrip] = ImVec4(0.30f, 0.36f, 0.52f, 0.50f);
c[ImGuiCol_ResizeGripHovered] = ImVec4(0.40f, 0.48f, 0.68f, 0.70f);
c[ImGuiCol_ResizeGripActive] = ImVec4(0.46f, 0.54f, 0.76f, 0.90f);
c[ImGuiCol_Tab] = ImVec4(0.14f, 0.14f, 0.18f, 1.00f);
c[ImGuiCol_TabHovered] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_TabSelected] = ImVec4(0.22f, 0.26f, 0.38f, 1.00f);
c[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.36f, 0.56f, 0.50f);
c[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.94f, 1.00f);
c[ImGuiCol_TextDisabled] = ImVec4(0.44f, 0.44f, 0.50f, 1.00f);
}
#include "common.h"

enum interaction_mode { MODE_POINTS, MODE_BOX_PVS, MODE_EXEMPLAR_PCS };

Expand Down Expand Up @@ -157,17 +90,6 @@ struct app_state {
bool visual_only = false; // true for SAM2 / SAM3 visual-only
};

static GLuint upload_texture(const uint8_t* data, int w, int h, int ch, GLuint existing = 0) {
GLuint tex = existing;
if (!tex) glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GLenum fmt = (ch == 4) ? GL_RGBA : GL_RGB;
glTexImage2D(GL_TEXTURE_2D, 0, fmt, w, h, 0, fmt, GL_UNSIGNED_BYTE, data);
return tex;
}

static void build_overlay(app_state& app) {
if (app.image.data.empty()) return;
int w = app.image.width;
Expand Down
80 changes: 1 addition & 79 deletions examples/main_video.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -27,74 +27,7 @@
#include <string>
#include <vector>

// ── Helpers ──────────────────────────────────────────────────────────────────

static const float INSTANCE_COLORS[][3] = {
{1.0f, 0.2f, 0.2f}, {0.2f, 0.6f, 1.0f}, {0.2f, 0.9f, 0.3f},
{1.0f, 0.8f, 0.1f}, {0.8f, 0.3f, 0.9f}, {1.0f, 0.5f, 0.1f},
{0.1f, 0.9f, 0.9f}, {0.9f, 0.4f, 0.6f}, {0.5f, 0.8f, 0.2f},
{0.3f, 0.3f, 1.0f}, {1.0f, 0.6f, 0.7f}, {0.6f, 1.0f, 0.5f},
};
static constexpr int N_COLORS = sizeof(INSTANCE_COLORS) / sizeof(INSTANCE_COLORS[0]);

static std::string basename_of(const std::string& path) {
auto pos = path.find_last_of("/\\");
return (pos == std::string::npos) ? path : path.substr(pos + 1);
}

static void apply_theme() {
ImGuiStyle& s = ImGui::GetStyle();
s.WindowRounding = 6.0f;
s.FrameRounding = 4.0f;
s.GrabRounding = 3.0f;
s.ScrollbarRounding = 4.0f;
s.TabRounding = 4.0f;
s.ChildRounding = 4.0f;
s.PopupRounding = 4.0f;
s.FramePadding = ImVec2(6, 4);
s.ItemSpacing = ImVec2(8, 5);
s.WindowPadding = ImVec2(10, 10);
s.FrameBorderSize = 0.0f;
s.WindowBorderSize = 0.0f;
s.ScrollbarSize = 12.0f;

ImVec4* c = s.Colors;
c[ImGuiCol_WindowBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_ChildBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_PopupBg] = ImVec4(0.10f, 0.10f, 0.13f, 0.96f);
c[ImGuiCol_Border] = ImVec4(0.20f, 0.20f, 0.25f, 0.50f);
c[ImGuiCol_FrameBg] = ImVec4(0.14f, 0.14f, 0.18f, 1.00f);
c[ImGuiCol_FrameBgHovered] = ImVec4(0.22f, 0.22f, 0.28f, 1.00f);
c[ImGuiCol_FrameBgActive] = ImVec4(0.26f, 0.26f, 0.34f, 1.00f);
c[ImGuiCol_TitleBg] = ImVec4(0.08f, 0.08f, 0.10f, 1.00f);
c[ImGuiCol_TitleBgActive] = ImVec4(0.12f, 0.12f, 0.16f, 1.00f);
c[ImGuiCol_MenuBarBg] = ImVec4(0.10f, 0.10f, 0.13f, 1.00f);
c[ImGuiCol_ScrollbarBg] = ImVec4(0.06f, 0.06f, 0.08f, 0.60f);
c[ImGuiCol_ScrollbarGrab] = ImVec4(0.28f, 0.28f, 0.34f, 1.00f);
c[ImGuiCol_ScrollbarGrabHovered]= ImVec4(0.36f, 0.36f, 0.42f, 1.00f);
c[ImGuiCol_ScrollbarGrabActive] = ImVec4(0.40f, 0.40f, 0.50f, 1.00f);
c[ImGuiCol_CheckMark] = ImVec4(0.45f, 0.60f, 1.00f, 1.00f);
c[ImGuiCol_SliderGrab] = ImVec4(0.38f, 0.52f, 0.90f, 1.00f);
c[ImGuiCol_SliderGrabActive] = ImVec4(0.50f, 0.64f, 1.00f, 1.00f);
c[ImGuiCol_Button] = ImVec4(0.18f, 0.20f, 0.28f, 1.00f);
c[ImGuiCol_ButtonHovered] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_ButtonActive] = ImVec4(0.36f, 0.40f, 0.56f, 1.00f);
c[ImGuiCol_Header] = ImVec4(0.18f, 0.20f, 0.28f, 1.00f);
c[ImGuiCol_HeaderHovered] = ImVec4(0.26f, 0.30f, 0.42f, 1.00f);
c[ImGuiCol_HeaderActive] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_Separator] = ImVec4(0.22f, 0.22f, 0.28f, 1.00f);
c[ImGuiCol_SeparatorHovered] = ImVec4(0.36f, 0.42f, 0.60f, 1.00f);
c[ImGuiCol_SeparatorActive] = ImVec4(0.42f, 0.50f, 0.70f, 1.00f);
c[ImGuiCol_ResizeGrip] = ImVec4(0.30f, 0.36f, 0.52f, 0.50f);
c[ImGuiCol_ResizeGripHovered] = ImVec4(0.40f, 0.48f, 0.68f, 0.70f);
c[ImGuiCol_ResizeGripActive] = ImVec4(0.46f, 0.54f, 0.76f, 0.90f);
c[ImGuiCol_Tab] = ImVec4(0.14f, 0.14f, 0.18f, 1.00f);
c[ImGuiCol_TabHovered] = ImVec4(0.30f, 0.34f, 0.48f, 1.00f);
c[ImGuiCol_TabSelected] = ImVec4(0.22f, 0.26f, 0.38f, 1.00f);
c[ImGuiCol_TextSelectedBg] = ImVec4(0.26f, 0.36f, 0.56f, 0.50f);
c[ImGuiCol_Text] = ImVec4(0.90f, 0.90f, 0.94f, 1.00f);
c[ImGuiCol_TextDisabled] = ImVec4(0.44f, 0.44f, 0.50f, 1.00f);
}
#include "common.h"

enum vtrack_mode { VMODE_TEXT, VMODE_BOX, VMODE_POINTS };

Expand Down Expand Up @@ -159,17 +92,6 @@ struct vapp_state {
int timeline_max_frame = -1; // highest frame tracked so far
};

static GLuint upload_texture(const uint8_t* data, int w, int h, int ch, GLuint existing = 0) {
GLuint tex = existing;
if (!tex) glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
GLenum fmt = (ch == 4) ? GL_RGBA : GL_RGB;
glTexImage2D(GL_TEXTURE_2D, 0, fmt, w, h, 0, fmt, GL_UNSIGNED_BYTE, data);
return tex;
}

static void build_frame_overlay(vapp_state& app, std::vector<uint8_t>& overlay) {
if (app.frame.data.empty()) return;
int w = app.frame.width;
Expand Down
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