Move image texture node state mapping to renderer gl

docs/modernization/build-inventory.md

@@ -169,6 +169,8 @@ Known local toolchain state:
   texture target, RGBA pixel format, and unsigned-byte component mapping.
   `NodeViewport` preview rendering also consumes backend-owned viewport query,
   clear-color query, color-buffer clear mask, and blend-state tokens.
+  `NodeImageTexture` preview drawing also consumes backend-owned fallback 2D
+  texture bind and blend-state tokens.
 - `windows-msvc-vcpkg-headless` validates manifest install/configure/build/test
   for the current headless component matrix; see DEBT-0007 for remaining app
   and platform triplet migration.

docs/modernization/roadmap.md

@@ -436,6 +436,8 @@ mapping to `pp_renderer_gl`.
 `NodeViewport` preview rendering now also delegates viewport query,
 clear-color query, color-buffer clear mask, and blend-state tokens to
 `pp_renderer_gl`.
+`NodeImageTexture` preview drawing now delegates its fallback 2D texture bind
+target and blend-state tokens to `pp_renderer_gl`.
 The existing renderer classes are not yet fully
 behind the renderer interfaces.
 

src/node_image_texture.cpp

@@ -1,6 +1,7 @@
 #include "pch.h"
 #include "log.h"
 #include "node_image_texture.h"
+#include "renderer_gl/opengl_capabilities.h"
 #include "shader.h"
 #include "node_image.h"
 
@@ -18,14 +19,14 @@ void NodeImageTexture::clone_copy(Node* dest) const
 
 void NodeImageTexture::draw()
 {
-    tex ? tex->bind() : glBindTexture(GL_TEXTURE_2D, 0);
+    tex ? tex->bind() : glBindTexture(pp::renderer::gl::texture_2d_target(), 0);
     auto& sampler = tex && tex->has_mips ? NodeImage::m_sampler_mips : NodeImage::m_sampler;
     sampler.bind(0);
-    glEnable(GL_BLEND);
+    glEnable(pp::renderer::gl::blend_state());
     ShaderManager::use(kShader::Texture);
     ShaderManager::u_int(kShaderUniform::Tex, 0);
     ShaderManager::u_mat4(kShaderUniform::MVP, m_mvp);
     NodeImage::m_plane.draw_fill();
     sampler.unbind();
-    glDisable(GL_BLEND);
+    glDisable(pp::renderer::gl::blend_state());
 }