Backends: OpenGL3: Shallow tweak of compile-time extensions detection.

Detect polygon mode using same method as others (not define/symbol).
IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS -> IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
This commit is contained in:
ocornut 2024-01-24 15:15:15 +01:00
parent 1ce41f6218
commit 1509842107
2 changed files with 20 additions and 26 deletions

View File

@ -114,7 +114,7 @@ enum GlfwClientApi
{ {
GlfwClientApi_Unknown, GlfwClientApi_Unknown,
GlfwClientApi_OpenGL, GlfwClientApi_OpenGL,
GlfwClientApi_Vulkan GlfwClientApi_Vulkan,
}; };
struct ImGui_ImplGlfw_Data struct ImGui_ImplGlfw_Data
@ -674,11 +674,9 @@ static void ImGui_ImplGlfw_UpdateMouseData()
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
// (those braces are here to reduce diff with multi-viewports support in 'docking' branch) // (those braces are here to reduce diff with multi-viewports support in 'docking' branch)
{ {
GLFWwindow* window = bd->Window; GLFWwindow* window = bd->Window;
#ifdef __EMSCRIPTEN__ #ifdef __EMSCRIPTEN__
const bool is_window_focused = true; const bool is_window_focused = true;
#else #else

View File

@ -176,9 +176,20 @@
#define GL_VERTEX_ARRAY_BINDING GL_VERTEX_ARRAY_BINDING_OES #define GL_VERTEX_ARRAY_BINDING GL_VERTEX_ARRAY_BINDING_OES
#endif #endif
// Desktop GL 2.0+ has glPolygonMode() which GL ES and WebGL don't have. // Desktop GL 2.0+ has extension and glPolygonMode() which GL ES and WebGL don't have..
#ifdef GL_POLYGON_MODE #if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
#define IMGUI_IMPL_HAS_POLYGON_MODE #define IMGUI_IMPL_OPENGL_HAS_EXTENSIONS // has glGetIntegerv(GL_NUM_EXTENSIONS)
#define IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE // has glPolygonMode()
#endif
// Desktop GL 2.1+ and GL ES 3.0+ have glBindBuffer() with GL_PIXEL_UNPACK_BUFFER target.
#if !defined(IMGUI_IMPL_OPENGL_ES2)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
#endif
// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
#endif #endif
// Desktop GL 3.2+ has glDrawElementsBaseVertex() which GL ES and WebGL don't have. // Desktop GL 3.2+ has glDrawElementsBaseVertex() which GL ES and WebGL don't have.
@ -191,21 +202,6 @@
#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER #define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
#endif #endif
// Desktop GL and GL ES 3.0+ have glBindBuffer() with GL_PIXEL_UNPACK_BUFFER target.
#if !defined(IMGUI_IMPL_OPENGL_ES2)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
#endif
// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
#endif
// Desktop GL use extension detection
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS
#endif
// [Debugging] // [Debugging]
//#define IMGUI_IMPL_OPENGL_DEBUG //#define IMGUI_IMPL_OPENGL_DEBUG
#ifdef IMGUI_IMPL_OPENGL_DEBUG #ifdef IMGUI_IMPL_OPENGL_DEBUG
@ -364,7 +360,7 @@ bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
// Detect extensions we support // Detect extensions we support
bd->HasClipOrigin = (bd->GlVersion >= 450); bd->HasClipOrigin = (bd->GlVersion >= 450);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS #ifdef IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
GLint num_extensions = 0; GLint num_extensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions); glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
for (GLint i = 0; i < num_extensions; i++) for (GLint i = 0; i < num_extensions; i++)
@ -416,7 +412,7 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
if (bd->GlVersion >= 310) if (bd->GlVersion >= 310)
glDisable(GL_PRIMITIVE_RESTART); glDisable(GL_PRIMITIVE_RESTART);
#endif #endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE #ifdef IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
#endif #endif
@ -505,7 +501,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY #ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object); GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
#endif #endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE #ifdef IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode); GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
#endif #endif
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport); GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
@ -644,7 +640,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); } if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
#endif #endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE #ifdef IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
// Desktop OpenGL 3.0 and OpenGL 3.1 had separate polygon draw modes for front-facing and back-facing faces of polygons // Desktop OpenGL 3.0 and OpenGL 3.1 had separate polygon draw modes for front-facing and back-facing faces of polygons
if (bd->GlVersion <= 310 || bd->GlProfileIsCompat) if (bd->GlVersion <= 310 || bd->GlProfileIsCompat)
{ {
@ -655,7 +651,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
{ {
glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]);
} }
#endif // IMGUI_IMPL_HAS_POLYGON_MODE #endif // IMGUI_IMPL_OPENGL_HAS_POLYGON_MODE
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]); glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]); glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);