gl_rasterizer: Use ARB_multi_bind to update UBOs across stages

1 files changed, 25 insertions, 0 deletions

diff --git a/src/video_core/renderer_opengl/utils.cpp b/src/video_core/renderer_opengl/utils.cpp
index d84634cb3..79bda54c1 100644
--- a/src/video_core/renderer_opengl/utils.cpp
+++ b/src/video_core/renderer_opengl/utils.cpp
@@ -5,11 +5,36 @@
 #include <string>
 #include <fmt/format.h>
 #include <glad/glad.h>
+#include "common/assert.h"
 #include "common/common_types.h"
 #include "video_core/renderer_opengl/utils.h"
 
 namespace OpenGL {
 
+BindBuffersRangePushBuffer::BindBuffersRangePushBuffer(GLenum target) : target{target} {}
+
+BindBuffersRangePushBuffer::~BindBuffersRangePushBuffer() = default;
+
+void BindBuffersRangePushBuffer::Setup(GLuint first_) {
+    first = first_;
+    buffers.clear();
+    offsets.clear();
+    sizes.clear();
+}
+
+void BindBuffersRangePushBuffer::Push(GLuint buffer, GLintptr offset, GLsizeiptr size) {
+    buffers.push_back(buffer);
+    offsets.push_back(offset);
+    sizes.push_back(size);
+}
+
+void BindBuffersRangePushBuffer::Bind() const {
+    const std::size_t count{buffers.size()};
+    DEBUG_ASSERT(count == offsets.size() && count == sizes.size());
+    glBindBuffersRange(target, first, static_cast<GLsizei>(count), buffers.data(), offsets.data(),
+                       sizes.data());
+}
+
 void LabelGLObject(GLenum identifier, GLuint handle, VAddr addr, std::string extra_info) {
     if (!GLAD_GL_KHR_debug) {
         return; // We don't need to throw an error as this is just for debugging